[RE-wrenches] Battery backup under attack in CA
Hi Wrenches, I bumped into this article about an Outback battery backup system being rejected by a utility in Southern CA: http://www.renewableenergyworld.com/rea/news/article/2013/08/solar-battery-backup-under-attack-in-california?cmpid=SolarNL-2013-08-08 It sounds like the utility is rejecting the system because the batteries have the capability of feeding back to the grid. I'm not familiar enough with the Outback system to know how this would work. We are installing a pretty good amount of Sunny Island based battery backups these days but they don't have the capability of sending battery power to the grid. Thoughts? -August *August Goers* Luminalt Energy Corporation o: 415.641.4000 m: 415.559.1525 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
[RE-wrenches] Inverter for UPS
Hello wrenches, I need a UPS for a small hydroelectric power plant. It will be handling controls, so it doesn't have to be very large. 300 watts would be overkill. I'd get an ordinary packaged UPS, but I need to hard wire the AC output. What I'm looking for is the smallest *reliable* hard-wired inverter/charger I can find. Preferably sine wave. Not one of those auto parts store models. Any ideas? Thanks, Hilton -- Hilton Dier III Renewable Energy Design Partner, Solar Gain LLC 453 East Hill Rd. Middlesex, VT 05602 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Inverter for UPS
Consider the Exeltech XP600 series, as the XP250 might be too small for your needs. Chris Worcester Solar Wind Works NABCEP Certified PV Installer Office 530-582-4503 Cell 530-448-9692 Fax 530-582-4603 www.solarwindworks.com ch...@solarwindworks.com From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Hilton Dier III Sent: Thursday, August 08, 2013 8:04 AM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] Inverter for UPS Hello wrenches, I need a UPS for a small hydroelectric power plant. It will be handling controls, so it doesn't have to be very large. 300 watts would be overkill. I'd get an ordinary packaged UPS, but I need to hard wire the AC output. What I'm looking for is the smallest *reliable* hard-wired inverter/charger I can find. Preferably sine wave. Not one of those auto parts store models. Any ideas? Thanks, Hilton -- Hilton Dier III Renewable Energy Design Partner, Solar Gain LLC 453 East Hill Rd. Middlesex, VT 05602 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] GFX Series with generator
I believe there is an issue with connecting the GFX (or GVFX) to just any generator, such that Outback recommends or perhaps requires (warranty reasons?) that the only generator that can be used is a particular Honda generator. The EU series maybe. A real down fall of the GFX's. benn Sent from a 'smart' phone, with touch screen keys. Please excuse shortcuts and typos. On 2013-08-08, at 9:47 AM, William Miller will...@millersolar.com wrote: Friends: We a have a client that is off-grid right now but will have a grid connection in a few months. They need an inverter that will connect to a generator now and the grid later. Can the Outback G series inverter do that? How about any other inverters in the 4Kw range? Thanks in advance. William Gradient Cap flat.gif 17395 Oak Rd. Atascadero, CA 93422 www.millersolar.com 805-438-5600 voice* *Note: above number replaces cell number ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] GFX Series with generator
William How about the Schneider XW4024 or if 48 volt a XW4548? It'll sand alone now with gen and later grid-tie Tom Duffy Senior Solar Design Engineer [Real-logo-X-195] Toll Free 888-895-8179 t...@thesolar.bizmailto:t...@thesolar.biz Customer Service and Accounting 888-895-6810 Grid tie sales 888-895-7847 Off Grid sales 888-895-4058 Other Product Sales 888-895-9612 Central America Sales (Panama) 507-6-126-1253 Shipping and Receiving 888-895-6497 Tech Support 888-895-8179 SKYPE: thesolarbiz From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Thursday, August 08, 2013 10:47 AM To: 'RE-wrenches' Subject: [RE-wrenches] GFX Series with generator Friends: We a have a client that is off-grid right now but will have a grid connection in a few months. They need an inverter that will connect to a generator now and the grid later. Can the Outback G series inverter do that? How about any other inverters in the 4Kw range? Thanks in advance. William [cid:image006.jpg@01CE942D.464306C0] 17395 Oak Rd. Atascadero, CA 93422 www.millersolar.comhttp://www.millersolar.com/ 805-438-5600 voice* *Note: above number replaces cell number inline: image005.pnginline: image006.jpg___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] GFX Series with generator
William, Two possibilities: 1) I'd try a GVFX with the genny they have. If the voltage and frequency on the genny are within grid parameters and is stable enough, it should work just fine. If not: 2) get a VFX and a GVFX ac board. Maybe save yourself some time by not mounting the VFX on the wall until you change the board when the grid arrives. Good Luck, Bob-O On Aug 8, 2013, at 8:47 AM, William Miller wrote: Friends: We a have a client that is off-grid right now but will have a grid connection in a few months. They need an inverter that will connect to a generator now and the grid later. Can the Outback G series inverter do that? How about any other inverters in the 4Kw range? Thanks in advance. William Gradient Cap flat.gif 17395 Oak Rd. Atascadero, CA 93422 www.millersolar.com 805-438-5600 voice* *Note: above number replaces cell number ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Trojan L-16s
All I can say without being too product specific, the larger batteries tend to have larger, thicker positive, and negative plates. Of course a taller plate gives you more surface area on the plate and thus may require more voltage to keep happy. One thing to keep in mind with taller batteries is you tend to run into more stratification issues then the smaller batteries. These higher voltages cause a bit more gassing which helps stir up the electrolyte preventing stratification. I can’t tell you the number of customers that report good voltages, but low SG and you ask them to up their Absorb Voltages and Times a tad bit and the SGs come right into the green. Battery manufactures are cramming larger plates into the chassis of the batteries to get extra cycle life in an attempt to complete with some of the other battery technologies that are popping up here and there. In reality most customers are looking for those magical 5000-10,000 cycles, but don’t really want to pay the required for the proper BMS systems. As we all know, with recent events Boeing did this recently and have learned the hard way with the 787 Dreamliner issues. What I often compare battery based systems to is driving a car down the freeway at 55mph… it takes many small adjustments to accelerator, and steering to keep the car on the road and at that speed, when you start making wide range adjustments to your driving is when you end up all over the road. You can’t just hold the accelerator and steering in the same place and expect to stay on the road. Some of the best advice I can offer, is no two systems are alike because your customers energy usages are usually not alike. Start with the midrange settings that the battery manufacture recommends, use temperature compensation, and adjust the Absorb Voltage, Absorb Time, and even Float Voltage to help control the end users Specific Gravity measurements. If you check your SG and they are in the high range take away .2vdc or 30 mins off the absorb time… if they are low add that .2 or 30 mins, or even bump up the float. For a new, or problem system you should be checking SG every 15-30 days, eventually when you get a handle on how the customer is using the system most people can lengthen the time between their SG checks to 45-90 days.As for Refractometers… I always suggest the EXTECH RF41, usually 80-90 bucks on amazon. Also about Every 4-6 months the SG measurements should be compared to what your SOC meters are reporting, and you should manually adjust the SOC meters according to those SG measurements. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dan Fink Sent: Wednesday, August 07, 2013 5:00 PM To: RE-wrenches Subject: Re: [RE-wrenches] Trojan L-16s You can get a decent battery refractometer now for about $80. We got one and it works fine. Check Amazon. The one we got is an Extech. Dan Fink, Executive Director; Otherpower Buckville Energy Consulting Buckville Publications LLC NABCEP / IREC accredited Continuing Education Providers 970.672.4342 On Wed, Aug 7, 2013 at 4:43 PM, William Miller will...@millersolar.commailto:will...@millersolar.com wrote: Friends: I make sure I recommend and, if necessary, sell a refractometer to all of my battery customers. I don't leave this to chance. They also get a copy of a white paper I wrote about battery maintenance. WM Steve Higgins Technical Services Manager M: +1.206.790.5840 F: +1.902.597.8447 Surrette Battery Company Exclusive manufacturer of [cid:rolls8701fc]http://www.rollsbattery.com From: re-wrenches-boun...@lists.re-wrenches.orgmailto:re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.orgmailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Bob-O Schultze Sent: Wednesday, August 07, 2013 3:36 PM To: RE-wrenches Subject: Re: [RE-wrenches] Trojan L-16s Steve, Good advice but I'm not at all surprised that most folks don't have a hydrometer. Frankly, unless you are willing to spend a bunch of dough, you aren't going to get one that is worth having. And, they are damn hard to find. The $5 cheapies with the floating balls, etc are just worthless, IMO. Bob-O ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.orgmailto:RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htmhttp://www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.orghttp://www.members.re-wrenches.org This email and its attachments have been scanned by iConnection E-Mail Firewall for viruses, spam, and malicious
[RE-wrenches] 150 watt dump load for 48 v micro hydro
Any ideas what to use for a small mice hydro dump load? John Cvsolar Sent from my iPhone On Aug 8, 2013, at 2:15 PM, Bob-O Schultze bo...@electronconnection.com wrote: Then again, SOME of us don't buy Chinese goods. On Aug 8, 2013, at 9:53 AM, Ryan wrote: To echo Tom the XW is probably the best product for the job. Ryan Mail Attachment.jpeg On 8/8/2013 12:49 PM, Tom Duffy wrote: William How about the Schneider XW4024 or if 48 volt a XW4548? It’ll sand alone now with gen and later grid-tie Tom Duffy Senior Solar Design Engineer Mail Attachment.png Toll Free 888-895-8179 t...@thesolar.biz Customer Service and Accounting 888-895-6810 Grid tie sales 888-895-7847 Off Grid sales 888-895-4058 Other Product Sales 888-895-9612 Central America Sales (Panama) 507-6-126-1253 Shipping and Receiving 888-895-6497 Tech Support 888-895-8179 SKYPE: thesolarbiz From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Thursday, August 08, 2013 10:47 AM To: 'RE-wrenches' Subject: [RE-wrenches] GFX Series with generator Friends: We a have a client that is off-grid right now but will have a grid connection in a few months. They need an inverter that will connect to a generator now and the grid later. Can the Outback G series inverter do that? How about any other inverters in the 4Kw range? Thanks in advance. William Mail Attachment.jpeg 17395 Oak Rd. Atascadero, CA 93422 www.millersolar.com 805-438-5600 voice* *Note: above number replaces cell number ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] GFX Series with generator
Then again, SOME of us don't buy Chinese goods. On Aug 8, 2013, at 9:53 AM, Ryan wrote: To echo Tom the XW is probably the best product for the job. Ryan Mail Attachment.jpeg On 8/8/2013 12:49 PM, Tom Duffy wrote: William How about the Schneider XW4024 or if 48 volt a XW4548? It’ll sand alone now with gen and later grid-tie Tom Duffy Senior Solar Design Engineer Mail Attachment.png Toll Free 888-895-8179 t...@thesolar.biz Customer Service and Accounting 888-895-6810 Grid tie sales 888-895-7847 Off Grid sales 888-895-4058 Other Product Sales 888-895-9612 Central America Sales (Panama) 507-6-126-1253 Shipping and Receiving 888-895-6497 Tech Support 888-895-8179 SKYPE: thesolarbiz From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Thursday, August 08, 2013 10:47 AM To: 'RE-wrenches' Subject: [RE-wrenches] GFX Series with generator Friends: We a have a client that is off-grid right now but will have a grid connection in a few months. They need an inverter that will connect to a generator now and the grid later. Can the Outback G series inverter do that? How about any other inverters in the 4Kw range? Thanks in advance. William Mail Attachment.jpeg 17395 Oak Rd. Atascadero, CA 93422 www.millersolar.com 805-438-5600 voice* *Note: above number replaces cell number ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] GFX Series with generator
Here, here, Bob-O. Thanks for the comment. My sentiments exactly. Bill Loesch Solar 1 - Saint Louis Solar 314 631 1094 On 08-Aug-13 1:15 PM, Bob-O Schultze wrote: Then again, SOME of us don't buy Chinese goods. On Aug 8, 2013, at 9:53 AM, Ryan wrote: To echo Tom the XW is probably the best product for the job. Ryan Mail Attachment.jpeg On 8/8/2013 12:49 PM, Tom Duffy wrote: William How about the Schneider XW4024 or if 48 volt a XW4548? It’ll sand alone now with gen and later grid-tie Tom Duffy Senior Solar Design Engineer Mail Attachment.png Toll Free 888-895-8179 t...@thesolar.biz mailto:t...@thesolar.biz Customer Service and Accounting 888-895-6810 Grid tie sales 888-895-7847 Off Grid sales 888-895-4058 Other Product Sales 888-895-9612 Central America Sales (Panama)507-6-126-1253 Shipping and Receiving 888-895-6497 Tech Support 888-895-8179 SKYPE: thesolarbiz *From:*re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *William Miller *Sent:* Thursday, August 08, 2013 10:47 AM *To:* 'RE-wrenches' *Subject:* [RE-wrenches] GFX Series with generator Friends: We a have a client that is off-grid right now but will have a grid connection in a few months. They need an inverter that will connect to a generator now and the grid later. Can the Outback G series inverter do that? How about any other inverters in the 4Kw range? Thanks in advance. William Mail Attachment.jpeg 17395 Oak Rd. Atascadero, CA 93422 www.millersolar.com http://www.millersolar.com/ 805-438-5600 voice* *Note: above number replaces cell number ___ List sponsored by Home Power magazine List Address:RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive:http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org mailto:RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org No virus found in this message. Checked by AVG - www.avg.com http://www.avg.com Version: 2013.0.3392 / Virus Database: 3209/6560 - Release Date: 08/08/13 - No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.3392 / Virus Database: 3209/6560 - Release Date: 08/08/13___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] GFX Series with generator
Well I totally agree and always try to buy USA as well as Buy Local, but at the end of the day where are the grid tie inverters produced? Chine, India and Germany. Ryan On 8/8/2013 2:49 PM, Bill Loesch wrote: Here, here, Bob-O. Thanks for the comment. My sentiments exactly. Bill Loesch Solar 1 - Saint Louis Solar 314 631 1094 On 08-Aug-13 1:15 PM, Bob-O Schultze wrote: Then again, SOME of us don't buy Chinese goods. On Aug 8, 2013, at 9:53 AM, Ryan wrote: To echo Tom the XW is probably the best product for the job. Ryan Mail Attachment.jpeg On 8/8/2013 12:49 PM, Tom Duffy wrote: William How about the Schneider XW4024 or if 48 volt a XW4548? It'll sand alone now with gen and later grid-tie Tom Duffy Senior Solar Design Engineer Mail Attachment.png Toll Free 888-895-8179 t...@thesolar.biz mailto:t...@thesolar.biz Customer Service and Accounting 888-895-6810 Grid tie sales 888-895-7847 Off Grid sales 888-895-4058 Other Product Sales 888-895-9612 Central America Sales (Panama)507-6-126-1253 Shipping and Receiving 888-895-6497 Tech Support 888-895-8179 SKYPE: thesolarbiz *From:*re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *William Miller *Sent:* Thursday, August 08, 2013 10:47 AM *To:* 'RE-wrenches' *Subject:* [RE-wrenches] GFX Series with generator Friends: We a have a client that is off-grid right now but will have a grid connection in a few months. They need an inverter that will connect to a generator now and the grid later. Can the Outback G series inverter do that? How about any other inverters in the 4Kw range? Thanks in advance. William Mail Attachment.jpeg 17395 Oak Rd. Atascadero, CA 93422 www.millersolar.com http://www.millersolar.com/ 805-438-5600 voice* *Note: above number replaces cell number ___ List sponsored by Home Power magazine List Address:RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive:http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org mailto:RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address:RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive:http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org No virus found in this message. Checked by AVG - www.avg.com http://www.avg.com Version: 2013.0.3392 / Virus Database: 3209/6560 - Release Date: 08/08/13 No virus found in this message. Checked by AVG - www.avg.com http://www.avg.com Version: 2013.0.3392 / Virus Database: 3209/6560 - Release Date: 08/08/13 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Inverter for UPS
We have been using the small Cotek Sine Wave inverters (300W, 12/24/48V) for precisely this purpose for many years. Cannot think of a single problem with them and dozens in the field. http://samlexsolar.com/rv-power-products/ProductsList.aspx?cid=SS20 Kevin -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org]On Behalf Of Hilton Dier III Sent: August 8, 2013 8:04 AM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] Inverter for UPS Hello wrenches, I need a UPS for a small hydroelectric power plant. It will be handling controls, so it doesn't have to be very large. 300 watts would be overkill. I'd get an ordinary packaged UPS, but I need to hard wire the AC output. What I'm looking for is the smallest *reliable* hard-wired inverter/charger I can find. Preferably sine wave. Not one of those auto parts store models. Any ideas? Thanks, Hilton -- Hilton Dier III Renewable Energy Design Partner, Solar Gain LLC 453 East Hill Rd. Middlesex, VT 05602 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] 150 watt dump load for 48 v micro hydro
Hiya John, If this is something you need inspected and if you are using an inverter which has a voltage controlled AUX relay, dump ac into a very small cube heater using the AUX to turn a larger relay on and off. I would certainly recommend a solid state hockey puck relay rated for DC as some of those AUX controls will switch on and off quickly creating a PWM effect. I hate to admit to this in public, but I found an ideal 3C (Cheap Chinese Crap) cube heater in Walmart which as a 200W setting. Sometimes ya gotta do what ya gotta do... If you don't need UL and want to roll yer own, it would be good to know just how many amps you are dumping and at what voltage. Assuming abut 55.2V (13.8V x 4) and further assuming that you need a full 150W dumped, that would mean your hydro was putting out about 2.73A@55.2V. That, in turn, gives us a resistance value of about 20Ω. Good old ohm's law... You'll want to us a PWM controller such as a C-40. Then the trick is in finding the right resistor or (far more likely) combo of power resistors of the right ohm value to handle the wattage. Kinda hard to find these days. A quick search didn't come up with anything yummy, but I did find this nifty Parallel Resistor Calculator with saves time and brain cells. http://www.1728.org/resistrs.htm Good Luck, bob-O On Aug 8, 2013, at 11:19 AM, John Blittersdorf wrote: Any ideas what to use for a small mice hydro dump load? John Cvsolar Sent from my iPhone On Aug 8, 2013, at 2:15 PM, Bob-O Schultze bo...@electronconnection.com wrote: Then again, SOME of us don't buy Chinese goods. On Aug 8, 2013, at 9:53 AM, Ryan wrote: To echo Tom the XW is probably the best product for the job. Ryan Mail Attachment.jpeg On 8/8/2013 12:49 PM, Tom Duffy wrote: William How about the Schneider XW4024 or if 48 volt a XW4548? It’ll sand alone now with gen and later grid-tie Tom Duffy Senior Solar Design Engineer Mail Attachment.png Toll Free 888-895-8179 t...@thesolar.biz Customer Service and Accounting 888-895-6810 Grid tie sales 888-895-7847 Off Grid sales 888-895-4058 Other Product Sales 888-895-9612 Central America Sales (Panama) 507-6-126-1253 Shipping and Receiving 888-895-6497 Tech Support 888-895-8179 SKYPE: thesolarbiz From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Thursday, August 08, 2013 10:47 AM To: 'RE-wrenches' Subject: [RE-wrenches] GFX Series with generator Friends: We a have a client that is off-grid right now but will have a grid connection in a few months. They need an inverter that will connect to a generator now and the grid later. Can the Outback G series inverter do that? How about any other inverters in the 4Kw range? Thanks in advance. William Mail Attachment.jpeg 17395 Oak Rd. Atascadero, CA 93422 www.millersolar.com 805-438-5600 voice* *Note: above number replaces cell number ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings:
Re: [RE-wrenches] SW AGS
Jay, Stop absorb was enabled but that wasn't the problem. His batteries were shot. Eric, sorry I couldn't call. My cell phone died. But we figured out the problem. Seems like his system is working fine except for his 48v bank of expensive paper weights. Because he's still getting some Ah out of his industrial bank I put him on a daily EQ regime to see if we can breathe some life back into his batteries. I figured it's worth a shot and he'll learn more about battery maintenance along the way. Thanks guys! Eric Stikes SunHarvest 001.530.798.3738 (Cell) - Original Message - From: eric.bent...@schneider-electric.com To: RE-wrenches Sent: Wednesday, August 07, 2013 3:24 PM Subject: Re: [RE-wrenches] SW AGS Hi Chris, Stop absorb ramps up to the BULK voltage, which replaces approx 80% of capacity. Running the gen thru the absorption stage will allow for a full charge, but is a waste of fuel (most of abs is at reduced rate), and users want to charge the rest of the way with RE. The SW uses Absorption Time for stop parameter, but if set to 0 would accomplish the same as stop absorb. Eric _ Eric Bentsen | Schneider Electric | Solar Business | UNITED STATES | Technical Support Representative Phone: +(650) 351-8237 ext. 001# | Email: eric.bent...@schneider-electric.com | Site: www.schneider-electric.com/solar | Address: 250 South Vasco Rd., Livermore, CA 94551 *** Please consider the environment before printing this e-mail From: Chris Worcester ch...@solarwindworks.com To: 'RE-wrenches' re-wrenches@lists.re-wrenches.org Date: 08/07/2013 03:17 PM Subject: Re: [RE-wrenches] SW AGS Sent by: re-wrenches-boun...@lists.re-wrenches.org -- Now there is a useful setting, just being a little sarcastic, this would be hard to diagnose. Was that available on the SW’s AGS menu too? Chris Worcester Solar Wind Works NABCEP Certified PV Installer Office 530-582-4503 Cell 530-448-9692 Fax 530-582-4603 www.solarwindworks.com ch...@solarwindworks.com From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of jay peltz Sent: Wednesday, August 07, 2013 2:30 PM To: RE-wrenches Subject: Re: [RE-wrenches] SW AGS HI Eric, Sounds like the stop absorb might have been enabled. This will stop the AGS when the battery volts reach absorb setpoint. But has no impact if starting the generator manually. jay peltz power Sounds like you talked to the right guy, that's his info...except that he has, according to what he told me, an SW not an XW. I'm assuming he's maybe at 50% capacity on his original 1260Ah bank based on everything he told me this morning. He did say that his bank will last him through the night and that he has some pretty hefty air conditioning loads. He also said he had equalized in the past but not in the last 18 months. I'm just not convinced that his batteries are shot. But all this battery talk may be beside the point if he's not experiencing the same on/off cycling problem when he manually starts the genny, right? That is, assuming the disco settings remain in effect regardless of start mechanism. Thanks for indulging me tocayo. Eric SunHarvest 001.530.798.3738 (Cell) - Original Message - From: eric.bent...@schneider-electric.com To: RE-wrenches Sent: Wednesday, August 07, 2013 12:54 PM Subject: Re: [RE-wrenches] SW AGS Hi Eric, Sounded like bad batteries to me also (I think he called in this AM). He has (2) XW6048 units that are capable of 200ADC between them, and he also has 1260Ah of flooded capacity. DC Start V is set for 46.5V, so if we assume he was close to 50% discharge (depending on load), it should take almost 2 hours to reach the bulk voltage (80% replaced). His batteries were ramping up to bulk in just a couple of minutes, meaning the batteries were not absorbing the charge. I have heard varying opinions on the symptoms of sulfation, but it does sound like a battery issue (5 yrs old). He was advised to equalize to try and recover them (he has never done this), or replace them. Rgds, _ Eric Bentsen | Schneider Electric | Solar Business | UNITED STATES | Technical Support Representative Phone: +(650) 351-8237 ext. 001# | Email: eric.bent...@schneider-electric.com | Site: www.schneider-electric.com/solar | Address: 250 South Vasco Rd., Livermore, CA 94551 Mail Attachment.jpeg *** Please consider the environment before printing this e-mail
Re: [RE-wrenches] Inverter for UPS
Hilton, I like the Morningstar SureSine 300 for 12 volt system. Inverter only, no battery charging. Lee Lee Bristol Executive Director NABCEP Certified PV Installation Professional ** Global Solace Inc 20530 Beallsville Road Beallsville, MD 20839 (301) 972-8672 (240) 479-1510 (c) lee.bris...@globalsolace.org www.globalsolace.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Battery backup under attack in CA
Wrenches, Unfortunately, this is affecting all battery-based systems -- it's not limited to OutBack. SCE recently issued an External Memorandum stating their position. I've read the memorandum, but I've also read SCE's Rule 21 and their NEM tariff, and the utility's position is not supported by their own rules. These systems fully meet the requirements of the SCE Rule 21 and NEM Tariff. The new RPS Guidebook, which the SCE NEM Tariff uses to define permissible systems, allows for two classes of energy storage -- Integrated, and Directly Connected. With Directly Connected energy storage, the system can be charged by any number of sources. The customer is allowed to have onsite loads. Maintaining a battery is an onsite load. The only energy exported is from the renewable source, the PV array. SCE's position that the battery can never charge from the grid is simply not supported by their own rules, However, their current position has put a substantial barrier in place to homeowners that desire grid-tie with battery backup, and to businesses like your own that support this market. We need to push back against this position, and help people move forward with their renewable energy systems. I would ask any of you affected by this issue to press the CPUC to give SCE and the other utilities clear and specific guidance on this issue as soon as possible. Explain how this current impasse affects your business and your customers. Telephone: 866-849-8390 or 415-703-2074 Email: public.advi...@cpuc.ca.gov. Better yet, file a complaint with the CPUC, either as an informal complaint or as a formal complaint. Formal complaints carry far more weight, but take more work. More info on the process is available at http://www.cpuc.ca.gov/PUC/aboutus/Divisions/CSID/Public+Advisor/ Best regards, Philip Undercuffler Director, Product Management and Strategy OutBack Power Technologies 17825 59th Ave NE, Suite B, Arlington, WA 98223 360.618.4306 office | 425.319.2821 mobile www.outbackpower.com On Thu, Aug 8, 2013 at 7:45 AM, August Goers aug...@luminalt.com wrote: Hi Wrenches, I bumped into this article about an Outback battery backup system being rejected by a utility in Southern CA: http://www.renewableenergyworld.com/rea/news/article/2013/08/solar-battery-backup-under-attack-in-california?cmpid=SolarNL-2013-08-08 It sounds like the utility is rejecting the system because the batteries have the capability of feeding back to the grid. I'm not familiar enough with the Outback system to know how this would work. We are installing a pretty good amount of Sunny Island based battery backups these days but they don't have the capability of sending battery power to the grid. Thoughts? -August *August Goers* Luminalt Energy Corporation o: 415.641.4000 m: 415.559.1525 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Battery backup under attack in CA
Phil and Wrenches, I agree that SCE's position is not suppportable. SCE has a long history of obstructing PV while professing to support it; that's my opinion based on following online PV newsletters and Wrenches posts over the years. If SCE gets away with this, other utilities are likely to follow. I don't know what action if any we should take, as we're not in California. Should installers outside of California weigh in on this? If so, how? I am also of the opinion that utilities in general are gathering resources to fight back against this disruptive technology - PV, not batteries - that will fundamentally alter their regulated-monopoly-with-guaranteed-rate-of-return business structure. New Mexico is no exception, as we have already seen on multiple occasions. Simple reality: buying power at nighttime off peak rates to charge batteries in order to sell power back at peak day rates is not cost effective when the amortized cost of battery replacement due to heavy cycling is factored in. So independent of the legality of SCE's position, it simply doesn't make financial sense. Allan Allan Sindelar al...@positiveenergysolar.com NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder and Chief Technology Officer Positive Energy, Inc., a Certified B CorporationTM 3209 Richards Lane Santa Fe, New Mexico 87507 505 424-1112 office 780-2738 cell www.positiveenergysolar.com On 8/8/2013 3:02 PM, Phil Undercuffler wrote: Wrenches, Unfortunately, this is affecting all battery-based systems -- it's not limited to OutBack. SCE recently issued an External Memorandum stating their position. I've read the memorandum, but I've also read SCE's Rule 21 and their NEM tariff, and the utility's position is not supported by their own rules. These systems fully meet the requirements of the SCE Rule 21 and NEM Tariff. The new RPS Guidebook, which the SCE NEM Tariff uses to define permissible systems, allows for two classes of energy storage -- Integrated, and Directly Connected. With Directly Connected energy storage, the system can be charged by any number of sources. The customer is allowed to have onsite loads. Maintaining a battery is an onsite load. The only energy exported is from the renewable source, the PV array. SCE's position that the battery can never charge from the grid is simply not supported by their own rules, However, their current position has put a substantial barrier in place to homeowners that desire grid-tie with battery backup, and to businesses like your own that support this market. We need to push back against this position, and help people move forward with their renewable energy systems. I would ask any of you affected by this issue to press the CPUC to give SCE and the other utilities clear and specific guidance on this issue as soon as possible. Explain how this current impasse affects your business and your customers.Telephone: 866-849-8390 or 415-703-2074Email: public.advi...@cpuc.ca.gov.Better yet, file a complaint with the CPUC, either as an informal complaint or as a formal complaint. Formal complaints carry far more weight, but take more work. More info on the process is available athttp://www.cpuc.ca.gov/PUC/aboutus/Divisions/CSID/Public+Advisor/ Best regards, Philip Undercuffler Director, Product Management and Strategy OutBack Power Technologies 17825 59th Ave NE, Suite B, Arlington, WA 98223 360.618.4306 office | 425.319.2821 mobile www.outbackpower.com On Thu, Aug 8, 2013 at 7:45 AM, August Goers aug...@luminalt.com wrote: Hi Wrenches, I bumped into this article about an Outback battery backup system being rejected by a utility in Southern CA:
Re: [RE-wrenches] Battery backup under attack in CA
Just to add to the discussion: Maui Electric (MECO) has had the same policy of denying all battery based systems. My understanding is they won't even allow simple battery backup systems (no grid tie, so sell back). PNM (in Alan's backyard) used to require a very expensive and unnecessary load break rated transfer switch for battery backup systems:-( This issue is important to all of us, as regular grid tie goes more towards big lease outfits like Solar City, et al. these more complicated backup systems could be the smaller installers' bread and butter. It also has the capability in the future of further stabilizing the grid. Being able to sell from the battery during potential brown outs with the utility's consent might actually give the utilities more incentive to allow these systems. With talk of even electric vehicles being able to sell back some of their stored energy at peak times, I think the potential to further stabilize the grid is there, but of course the old school guard is wary of anything that might loosen their monopolies. R.Ray Walters CTO, Solarray, Inc Nabcep Certified PV Installer, Licensed Master Electrician Solar Design Engineer 303 505-8760 On 8/8/2013 3:50 PM, Allan Sindelar wrote: Phil and Wrenches, I agree that SCE's position is not suppportable. SCE has a long history of obstructing PV while professing to support it; that's my opinion based on following online PV newsletters and Wrenches posts over the years. If SCE gets away with this, other utilities are likely to follow. I don't know what action if any we should take, as we're not in California. Should installers outside of California weigh in on this? If so, how? I am also of the opinion that utilities in general are gathering resources to fight back against this disruptive technology - PV, not batteries - that will fundamentally alter their regulated-monopoly-with-guaranteed-rate-of-return business structure. New Mexico is no exception, as we have already seen on multiple occasions. Simple reality: buying power at nighttime off peak rates to charge batteries in order to sell power back at peak day rates is not cost effective when the amortized cost of battery replacement due to heavy cycling is factored in. So independent of the legality of SCE's position, it simply doesn't make financial sense. Allan *Allan Sindelar* _Allan@positiveenergysolar.com_ mailto:al...@positiveenergysolar.com NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder and Chief Technology Officer *Positive Energy, Inc.*, a Certified B Corporation^TM 3209 Richards Lane Santa Fe, New Mexico 87507 *505 424-1112 office 780-2738 cell* _www.positiveenergysolar.com_ http://www.positiveenergysolar.com/ On 8/8/2013 3:02 PM, Phil Undercuffler wrote: Wrenches, Unfortunately, this is affecting all battery-based systems -- it's not limited to OutBack. SCE recently issued an External Memorandum stating their position. I've read the memorandum, but I've also read SCE's Rule 21 and their NEM tariff, and the utility's position is not supported by their own rules. These systems fully meet the requirements of the SCE Rule 21 and NEM Tariff. The new RPS Guidebook, which the SCE NEM Tariff uses to define permissible systems, allows for two classes of energy storage -- Integrated, and Directly Connected. With Directly Connected energy storage, the system can be charged by any number of sources. The customer is allowed to have onsite loads. Maintaining a battery is an onsite load. The only energy exported is from the renewable source, the PV array. SCE's position that the battery can never charge from the grid is simply not supported by their own rules, However, their current position has put a substantial barrier in place to homeowners that desire grid-tie with battery backup, and to businesses like your own that support this market. We need to push back against this position, and help people move forward with their renewable energy systems. I would ask any of you affected by this issue to press the CPUC to give SCE and the other utilities clear and specific guidance on this issue as soon as possible. Explain how this current impasse affects your business and your customers. Telephone: 866-849-8390 tel:866-849-8390 or 415-703-2074 tel:415-703-2074 Email: public.advi...@cpuc.ca.gov mailto:public.advi...@cpuc.ca.gov. Better yet, file a complaint with the CPUC, either as an informal complaint or as a formal complaint. Formal complaints carry far more weight, but take more work. More info on the process is available at http://www.cpuc.ca.gov/PUC/aboutus/Divisions/CSID/Public+Advisor/ Best regards, Philip Undercuffler Director, Product Management and Strategy OutBack Power Technologies 17825 59th Ave NE, Suite B, Arlington, WA 98223 360.618.4306 tel:360.618.4306 office | 425.319.2821 tel:425.319.2821
[RE-wrenches] Relay for 48v Vent Fan
Hello Wrenches, Does anyone have any advice about what to use for a relay to power a 48 volt Zephyr battery vent fan using the 12 volt auxiliary output from the Midnite Classic Charge controllers. The fan only draws 6 watts but my problem is the 48 volt side of the equation. A supplier has recommend a double pole/double throw relay rated for up to 30 amps at 24 volts wired in series. I'm curious if anyone knows of a relay rated for 48volts (actually higher voltage since the fan is signaled to come on when the battery reaches gassing voltage) that would work in this application or if there is widespread agreement that the 24volt rated relay would work fine since we are requiring only minimal current and spreading between two contacts. As always, your input is greatly valued! Thanks, Rich ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Relay for 48v Vent Fan
HI Rich, Grainger will have 12v coil relays that will switch 48v. jay peltz power On Aug 8, 2013, at 4:49 PM, Rich Nicol wrote: Hello Wrenches, Does anyone have any advice about what to use for a relay to power a 48 volt Zephyr battery vent fan using the 12 volt auxiliary output from the Midnite Classic Charge controllers. The fan only draws 6 watts but my problem is the 48 volt side of the equation. A supplier has recommend a double pole/double throw relay rated for up to 30 amps at 24 volts wired in series. I’m curious if anyone knows of a relay rated for 48volts (actually higher voltage since the fan is signaled to come on when the battery reaches gassing voltage) that would work in this application or if there is widespread agreement that the 24volt rated relay would work fine since we are requiring only minimal current and spreading between two contacts. As always, your input is greatly valued! Thanks, Rich ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Relay for 48v Vent Fan
Mouser Electronics and Digi-key will also have these relays. You don't need anywhere near that heavy a relay. A fan consuming 6 watts at 48 volts equates to only 0.125 amps. A small relay with contacts rated for 0.5 amp at 48Vdc will be more than adequate. Get a relay with a coil of 500 ohms to 1K (or even higher) to minimize energy usage. Dan On Thu, 8/8/13, jay peltz j...@asis.com wrote: Subject: Re: [RE-wrenches] Relay for 48v Vent Fan To: RE-wrenches re-wrenches@lists.re-wrenches.org Date: Thursday, August 8, 2013, 7:09 PM HI Rich, Grainger will have 12v coil relays that will switch 48v. jay peltz powerOn Aug 8, 2013, at 4:49 PM, Rich Nicol wrote: Hello Wrenches, Does anyone have any advice about what to use for a relay to power a 48 volt Zephyr battery vent fan using the 12 volt auxiliary output from the Midnite Classic Charge controllers. The fan only draws 6 watts but my problem is the 48 volt side of the equation. A supplier has recommend a double pole/double throw relay rated for up to 30 amps at 24 volts wired in series. I’m curious if anyone knows of a relay rated for 48volts (actually higher voltage since the fan is signaled to come on when the battery reaches gassing voltage) that would work in this application or if there is widespread agreement that the 24volt rated relay would work fine since we are requiring only minimal current and spreading between two contacts.As always, your input is greatly valued! Thanks,Rich ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org -Inline Attachment Follows- ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Battery backup under attack in CA
Wow, how absurb. It's called UL 1741, I thought. Dan Fink, Executive Director; Otherpower Buckville Energy Consulting Buckville Publications LLC NABCEP / IREC accredited Continuing Education Providers 970.672.4342 On Thu, Aug 8, 2013 at 8:45 AM, August Goers aug...@luminalt.com wrote: Hi Wrenches, I bumped into this article about an Outback battery backup system being rejected by a utility in Southern CA: http://www.renewableenergyworld.com/rea/news/article/2013/08/solar-battery-backup-under-attack-in-california?cmpid=SolarNL-2013-08-08 It sounds like the utility is rejecting the system because the batteries have the capability of feeding back to the grid. I'm not familiar enough with the Outback system to know how this would work. We are installing a pretty good amount of Sunny Island based battery backups these days but they don't have the capability of sending battery power to the grid. Thoughts? -August *August Goers* Luminalt Energy Corporation o: 415.641.4000 m: 415.559.1525 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] GFX Series with generator
I would skip the outback G-*-any unless you have other such genny installs in the field that work with it and can use the same genny. There *is* an issue, and I don't know anything about a Honda option. Dan Fink, Executive Director; Otherpower Buckville Energy Consulting Buckville Publications LLC NABCEP / IREC accredited Continuing Education Providers 970.672.4342 On Thu, Aug 8, 2013 at 9:47 AM, William Miller will...@millersolar.comwrote: ** Friends: We a have a client that is off-grid right now but will have a grid connection in a few months. They need an inverter that will connect to a generator now and the grid later. Can the Outback G series inverter do that? How about any other inverters in the 4Kw range? Thanks in advance. William 17395 Oak Rd. Atascadero, CA 93422 www.millersolar.com 805-438-5600 voice* *Note: above number replaces cell number ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
Re: [RE-wrenches] Relay for 48v Vent Fan
Rich, We simply use 12V Zephyr vents on our 24 and 48V systems. One FM controller will power one 12V fan directly, or will run a 12V relay for more than one. Is that a solution for you? Allan Sindelar al...@positiveenergysolar.com NABCEP Certified PV Installation Professional NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Founder and Chief Technology Officer Positive Energy, Inc., a Certified B CorporationTM 3209 Richards Lane Santa Fe, New Mexico 87507 505 424-1112 office 780-2738 cell www.positiveenergysolar.com On 8/8/2013 5:49 PM, Rich Nicol wrote: Hello Wrenches, Does anyone have any advice about what to use for a relay to power a 48 volt Zephyr battery vent fan using the 12 volt auxiliary output from the Midnite Classic Charge controllers. The fan only draws 6 watts but my problem is the 48 volt side of the equation. A supplier has recommend a double pole/double throw relay rated for up to 30 amps at 24 volts wired in series. Im curious if anyone knows of a relay rated for 48volts (actually higher voltage since the fan is signaled to come on when the battery reaches gassing voltage) that would work in this application or if there is widespread agreement that the 24volt rated relay would work fine since we are requiring only minimal current and spreading between two contacts. As always, your input is greatly valued! Thanks, Rich ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
