Re: [RE-wrenches] Ballasted Roof Racking Recommendations?
We just did a system on 10 degree AET and liked it. I think they have a 30 degree option. I'd be worried about inter-row shading, though. The DPW POWER-FAB BRM has more flexibility with row spacing, but I found it to be pretty expensive. Dana Dana Brandt Ecotech Energy Systems, LLC www.ecotechenergy.com d...@ecotechenergy.com 360.318.7646 On Tue, Aug 28, 2012 at 1:56 PM, Glenn Burt glenn.b...@glbcc.com wrote: Hi Ryan, ** ** We have used the AET Rayport stainless steel ballasted racking system on dozens of installations and have been quite satisfied with the light ballast required (all open racking), integral module grounding, lightweight of materials (pressed stainless steel) and quickness of assembly. ** ** http://aetenergy.com/products/RAYPORT-B-solar-mount-solution ** ** Glenn Burt glb, Consulting Company ** ** *From:* re-wrenches-boun...@lists.re-wrenches.org [mailto: re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Ryan Harkins *Sent:* Tuesday, August 28, 2012 2:32 PM *To:* RE-wrenches *Subject:* [RE-wrenches] Ballasted Roof Racking Recommendations? ** ** Anyone have recommendations for a ballasted roof racking manufacturer? Tilts of 30-degrees or more would be best. ** ** *Ryan Harkins** NABCEP Certified Solar PV Installer / Project Manager* ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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 Options 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] Power line communications interference
Enphase recommends this ferrite toroid you can put on the lines to the pump to filter out the noise: http://www.digikey.com/scripts/DkSearch/dksus.dll?vendor=0keywords=Epcos%20B64290L0082X087cur=USD Dana Dana Brandt Ecotech Energy Systems, LLC www.ecotechenergy.com d...@ecotechenergy.com 360.318.7646 On Thu, Aug 23, 2012 at 2:51 PM, August Goers aug...@luminalt.com wrote: William, You might try calling Enphase again. I was discussing a similar issue with them recently and they said that they have a noise filter option for handling noisy lines. As with all tech support, some representatives are better than others. -August August Goers Luminalt Energy Corporation m: 415.559.1525 o: 415.641.4000 aug...@luminalt.com -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller Sent: Thursday, August 23, 2012 10:32 AM To: RE-wrenches Subject: [RE-wrenches] Power line communications interference Friends: In the old days of the Sunny Boy Control Light we battled problems with power line communications due to interference from external sources. I am now troubleshooting a problem with and Enphase Envoy. I have spoken to Tech Support several ties about this. I was told I need to move the Envoy out to the array, not an elegant solution. Never once was it suggested that interference could be the problem but it turns out when we turn off a pond pump the system communicates flawlessly. Have any of you dealt with this? If so, what have you done to remedy the problem? William Miller Solar Voice :805-438-5600 email: will...@millersolar.com http://millersolar.com License No. C-10-773985 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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 Options 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 Options 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] Ballasted Roof Racking Recommendations?
Ryan I do not think that they have a 30 degree option, but I have been pretty impressed with Dynoraxx http://dynoraxx.com/tool-less approach and using fiberglass non-conductive material ( read no grounding of racking). Now all we need is a fiberglass non-conducting module frame! Bill Hoffer On Fri, Aug 31, 2012 at 12:17 PM, Dana Brandt d...@ecotechenergy.comwrote: We just did a system on 10 degree AET and liked it. I think they have a 30 degree option. I'd be worried about inter-row shading, though. The DPW POWER-FAB BRM has more flexibility with row spacing, but I found it to be pretty expensive. Dana Dana Brandt Ecotech Energy Systems, LLC www.ecotechenergy.com d...@ecotechenergy.com 360.318.7646 On Tue, Aug 28, 2012 at 1:56 PM, Glenn Burt glenn.b...@glbcc.com wrote: Hi Ryan, ** ** We have used the AET Rayport stainless steel ballasted racking system on dozens of installations and have been quite satisfied with the light ballast required (all open racking), integral module grounding, lightweight of materials (pressed stainless steel) and quickness of assembly. ** ** http://aetenergy.com/products/RAYPORT-B-solar-mount-solution ** ** Glenn Burt glb, Consulting Company ** ** *From:* re-wrenches-boun...@lists.re-wrenches.org [mailto: re-wrenches-boun...@lists.re-wrenches.org] *On Behalf Of *Ryan Harkins *Sent:* Tuesday, August 28, 2012 2:32 PM *To:* RE-wrenches *Subject:* [RE-wrenches] Ballasted Roof Racking Recommendations? ** ** Anyone have recommendations for a ballasted roof racking manufacturer? Tilts of 30-degrees or more would be best. ** ** *Ryan Harkins** NABCEP Certified Solar PV Installer / Project Manager* ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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 Options 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 -- Bill Hoffer PE NABCEP Certified Solar PV Installer™ Sunergy Engineering Services PLLC 2504 Columbia Ave NW East Wenatchee WA 98802-3941 suneng...@gmail.com Cell:(509)679-6165 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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-16 SG Readings- Did Something Change?
Sequoya, Wrenches, Thank you for your patience on this, as I had no easy Internet connection. Below are the clarifications requested. ü Trojan Premium L16RE-B datasheet can be found here: http://www.trojanbatteryre.com/PDF/datasheets/L16REB_TrojanRE_Data_Sheets.pdf ü Trojan Premium line ( http://www.trojanbatteryre.com/PDF/Premium_Trojan_ProductLineSheet.pdf ) has indeed changed its specific gravity from nominal 1.260+-0.007 to nominal 1,280+-0.007 since March 2012 production. This change was motivated to reduce the confusion in the field between Trojan Premium line S.G. values and Trojan Signature line S.G. values. They are now identical. Only Trojan IND line S.G. remain at 1.260 . ü During the beginning of the life of the battery, an optimized development process of the plates porosity will take place to maximize the surface access contact between the electrolyte and the lead sulfate crystal within Trojan proprietary exclusive paste formulation. This optimum moisture of the active material at the beginning of the battery life is the continuation of an advanced factory-controlled 72-hour curing process and increase the electrical conductivity and improved discharge performance of the active material paste, resulting in Trojan's proven both sustained capacity and total overall ampere-hours, resulting in more operating power. The variation can reflect approximately 7 points in the S.G. ü The date code can be found on the negative terminal and consist of one letter and one figure. The figure for 2012 is 2. Any date code from and after E2 (i.e. Code date with letter E2, F2, G2,...) will have a nominal S.G. of 1.280 . Prior that, the nominal S.G. was 1,260. I hope that helps, John John F. DeBoever Global Technical Projects Director - Renewable Energy Trojan Battery Company 12380 Clark Street Santa Fe Springs, CA 90670 Tel: +1-562-236-3000 Ext. 3139 Cell: +1-845-514-7600 - NY office time zone: USA EST (GMT-5) Skype: john.f.deboever Fax: +1-562-236-3239 jdeboe...@trojanbattery.commailto:jdeboe...@trojanbattery.com www.trojanbattery.comhttp://www.trojanbattery.com/ From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Sequoya Cross Sent: Thursday, August 30, 2012 3:08 PM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] Trojan L-16 SG Readings- Did Something Change? We are wondering if anybody knows when the Trojan L-16RE-B batteries went from full SG readings of 1.265 (after an 18 month plate forming period) to 1.280 that they now state on the data sheet. We have been having customers use 1.250 as a full reading which would gradually increase over time to 1.265 and that might take/might not be seen for 18 months. Now we see that a full reading should be 1.280 and maybe still a plate forming period or maybe not? Does anyone know the date code that we can use with customers to see what they should be looking for (should have been somewhere between 2010 and 2012)? I have this question out to Trojan as well, but haven't received confirmation and wanted to know what data you all were seeing as well. Thanks- Sequoya Cross 1589 Rapid Lightning Creek Rd Sandpoint, Idaho 83864 www.backwoodssolar.comhttp://www.backwoodssolar.com/ Phone(208)263-4290 Fax (888) 273-8279 We are an online and catalog business that caters to off-grid and grid-tie customers, with technicians that own and operate a variety of renewable energy systems using the products that we sell. We take great pride in getting to know our products so that we can recommend the best for our customers. This e-mail message and any attachments that accompany it may contain information that is confidential, privileged, or protected from disclosure. It is intended solely for the use of the individual(s) to whom it was intended to be addressed. If you have received this e-mail by mistake, or you are not the intended recipient, any reading, disclosure, copying or other use of this communication is strictly prohibited. If you have received this communication in error, please immediately advise the sender at their phone number listed above, or by electronic mail, and also permanently delete the original and all copies of this e-mail and any attachments from all locations. Thank you. ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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] Battery Specialist
Hi Guys, Seems my "Battery Specialist" is back. Yes, this is the same guy that convinced a few of my customers that most installers are clueless because we clean terminals with a wire brush instead of a razor blade (and don't believe in desulphators). Now it seems he's telling folks that batteries should always be operated in the exact Sequence in which they were originally configured. i.e. #1 in the string should always be #1, #2 should always be #2 etc. I've been suggesting to folks (who still run multi string set ups) that they physically mix up their batteries periodically (at least once mid life cycle), to manually alter high resistance current paths. Call me old fashion, but I'm of the impression that only Kirchhoff's Laws apply here. Am I missing something - again? Thanks dbDan BrownFoxfire Energy Corp.Renewable Energy Systems(802)-483-2564www.Foxfire-Energy.comNABCEP #092907-44 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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 Specialist
I wire them thru bus bars now, but in the past before I did that I used to move them around occasionally. Later, Bob From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of d...@foxfire-energy.com Sent: Friday, August 31, 2012 6:54 PM To: re-wrenches@lists.re-wrenches.org Subject: [RE-wrenches] Battery Specialist Hi Guys, Seems my Battery Specialist is back. Yes, this is the same guy that convinced a few of my customers that most installers are clueless because we clean terminals with a wire brush instead of a razor blade (and don't believe in desulphators). Now it seems he's telling folks that batteries should always be operated in the exact Sequence in which they were originally configured. i.e. #1 in the string should always be #1, #2 should always be #2 etc. I've been suggesting to folks (who still run multi string set ups) that they physically mix up their batteries periodically (at least once mid life cycle), to manually alter high resistance current paths. Call me old fashion, but I'm of the impression that only Kirchhoff's Laws apply here. Am I missing something - again? Thanks db Dan Brown Foxfire Energy Corp. Renewable Energy Systems (802)-483-2564 www.Foxfire-Energy.com NABCEP #092907-44 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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] Ballasted Roof Racking Recommendations?
Sunpower has just that. Very easy install, no grounding issues, super high efficiency. Downsides: expensive, Plastic, finicky layouts from their engineers that preclude using it on smaller roofs. I would use it again for a larger roof that needed to max out the output/ sq ft of roof. It's probably the best commercially available module in the world, definitely the most efficient. Last I checked it qualified as American made, though some of it is made in indonesia I believe. Ray Walters On Aug 31, 2012, at 1:36 PM, Bill Hoffer wrote: Ryan I do not think that they have a 30 degree option, but I have been pretty impressed with Dynoraxx tool-less approach and using fiberglass non-conductive material ( read no grounding of racking). Now all we need is a fiberglass non-conducting module frame! Bill Hoffer On Fri, Aug 31, 2012 at 12:17 PM, Dana Brandt d...@ecotechenergy.com wrote: We just did a system on 10 degree AET and liked it. I think they have a 30 degree option. I'd be worried about inter-row shading, though. The DPW POWER-FAB BRM has more flexibility with row spacing, but I found it to be pretty expensive. Dana Dana Brandt Ecotech Energy Systems, LLC www.ecotechenergy.com d...@ecotechenergy.com 360.318.7646 On Tue, Aug 28, 2012 at 1:56 PM, Glenn Burt glenn.b...@glbcc.com wrote: Hi Ryan, We have used the AET Rayport stainless steel ballasted racking system on dozens of installations and have been quite satisfied with the light ballast required (all open racking), integral module grounding, lightweight of materials (pressed stainless steel) and quickness of assembly. http://aetenergy.com/products/RAYPORT-B-solar-mount-solution Glenn Burt glb, Consulting Company From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Ryan Harkins Sent: Tuesday, August 28, 2012 2:32 PM To: RE-wrenches Subject: [RE-wrenches] Ballasted Roof Racking Recommendations? Anyone have recommendations for a ballasted roof racking manufacturer? Tilts of 30-degrees or more would be best. Ryan Harkins NABCEP Certified Solar PV Installer / Project Manager ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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 Options 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 -- Bill Hoffer PE NABCEP Certified Solar PV Installer™ Sunergy Engineering Services PLLC 2504 Columbia Ave NW East Wenatchee WA 98802-3941 suneng...@gmail.com Cell:(509)679-6165 ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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 Options 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] Ballasted Roof Racking Recommendations?
Ray, Are those the BIPV ones? Can you provide a model or a link? Thanks, Benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY On 31/08/12 9:43 PM, R Ray Walters r...@solarray.com wrote: Sunpower has just that. Very easy install, no grounding issues, super high efficiency. Downsides: expensive, Plastic, finicky layouts from their engineers that preclude using it on smaller roofs. I would use it again for a larger roof that needed to max out the output/ sq ft of roof. It's probably the best commercially available module in the world, definitely the most efficient. Last I checked it qualified as American made, though some of it is made in indonesia I believe. Ray Walters ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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] Ballasted Roof Racking Recommendations?
Here's a link: http://us.sunpowercorp.com/commercial/products-services/rooftop-solar-systems/T5/ On Aug 31, 2012, at 11:13 PM, benn kilburn wrote: Ray, Are those the BIPV ones? Can you provide a model or a link? Thanks, Benn DayStar Renewable Energy Inc. www.daystarsolar.ca * Ph: 780-906-7807 Construction Electrician Solar Photovoltaic Systems Certified Certificate # 0007S HAVE A SUNNY DAY On 31/08/12 9:43 PM, R Ray Walters r...@solarray.com wrote: Sunpower has just that. Very easy install, no grounding issues, super high efficiency. Downsides: expensive, Plastic, finicky layouts from their engineers that preclude using it on smaller roofs. I would use it again for a larger roof that needed to max out the output/ sq ft of roof. It's probably the best commercially available module in the world, definitely the most efficient. Last I checked it qualified as American made, though some of it is made in indonesia I believe. Ray Walters ___ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options 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
