Re: [RE-wrenches] Trojan tech contact?
Wrenches, Looking for someone to speak with on technical questions on Trojan L-16 RE batteries. David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655 www.independentpowerllc.com NABCEP Certified PV Installer Vermont Solar Partner 23 Years Experience, (802) 888-7194 ___ 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] Top of POST mount
I'm looking for a solution to mount a 230W module on the top of an existing 6x6 wood post. It can be side of post mounted, but I'd prefer top of post to get it up a little higher. Any ideas/products appreciated. Jason Szumlanski Fafco Solar ___ 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] Tall pole mount
Situation: Client has limited locations for array due to trees. There is one spot that would work IF pole mount is 20-25' (that would put the array top edge at 30'+). Will need to incorporate tracker to maximize production. Will definitely be consulting structural engineer. Questions: Anyone tried this? Comments or lessons learned? Holt E. Kelly Holtek Fireplace Solar Products 500 Jewell Dr. Waco TX. 76712 254-751-9111 www.holteksolar.com ___ 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] Top of POST mount
Just one Panel? depending on budget I'd either cobulate something out of Unistrut.. or You might find a metal fab shop to make you something... You wouldn't be the first.. Good luck.. dbDan BrownFoxfire Energy Corp.Renewable Energy Systems(802)-483-2564www.Foxfire-Energy.comNABCEP #092907-44 Original Message Subject: [RE-wrenches] Top of POST mount From: "Jason Szumlanski" ja...@fafcosolar.com Date: Tue, March 22, 2011 7:51 am To: "RE-wrenches" re-wrenches@lists.re-wrenches.org I’m looking for a solution to mount a 230W module on the top of an existing 6x6 wood post. It can be side of post mounted, but I’d prefer top of post to get it up a little higher. Any ideas/products appreciated.Jason SzumlanskiFafco Solar___ 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] Trojan tech contact?
Dave; Contact their PR specialist Kari Garcia: kgar...@trojanbattery.com and they will quickly connect you with the correct technician / specialist for your question. Dan Fink Executive Director; Buckville Energy Consulting Buckville Publications LLC NABCEP / IREC / ISPQ accredited Continuing Education Providers http://www.buckville.com/ i...@buckville.com 970.672.4342 (voicemail) 970.373.1311 (fax) Dave Palumbo wrote: Wrenches, Looking for someone to speak with on technical questions on Trojan L-16 RE batteries. ___ 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] Tall pole mount
Can you get creative? How about a Simple Timber Frame Jungle Gym /Tree House/Ground Mount.. a Screened in Summer Bug House /Studio??? How about a very large Hop Trellis? Personally I avoid Pressure treated.. I love working with native Cedar and Tamarack... Might want to get a good nail banger involved.. 30' is up there.. I do have a few pics if you're interested... good Luck. dbDan BrownFoxfire Energy Corp.Renewable Energy Systems(802)-483-2564www.Foxfire-Energy.comNABCEP #092907-44 Original Message Subject: [RE-wrenches] Tall pole mount From: hol...@sbcglobal.net Date: Tue, March 22, 2011 9:13 am To: "RE-wrenches" re-wrenches@lists.re-wrenches.org Situation: Client has limited locations for array due to trees. There is one spot that would work IF pole mount is 20-25' (that would put the array top edge at 30'+). Will need to incorporate tracker to maximize production. Will definitely be consulting structural engineer. Questions: Anyone tried this? Comments or lessons learned? Holt E. KellyHoltek Fireplace Solar Products500 Jewell Dr.Waco TX. 76712254-751-9111www.holteksolar.com ___ 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-wrenches] FW: Fire Access lane for ground mount
Hi Wrenches - See feedback below from fire Captain Matt Paiss of San Jose. Matt, thanks for your input. Best, August -Original Message- From: Matthew Paiss [mailto:mpa...@earthlink.net] Sent: Monday, March 21, 2011 11:07 PM To: aug...@luminalt.com Subject: Re: [RE-wrenches] Fire Access lane for ground mount August, Please feel free to post this: As a firefighter, and one who has taught many firefighters PV Safety (some co-taught with Bill Brooks), I believe I can offer some help here. As Bill stated, this as is often the case on many interpretation calls, will depend on the AHJ. However, I can tell you that when it comes to driving on grass with a 60,000 lbs fire engine, getting stuck is not an option. Therefore, departments that do not have 4wd apparatus may insist on Fire Access roads. I have worked with just this situation with another integrator and a fire marshal. The initial request was a 20' wide road (Fire Access road requirement) around the entire plant (2 MW). This was ultimately revised to just one side, with a 12' wide maintenance road the rest. Of more concern is the vegetation management plan for any ground mount site. Please don't think just 2-3 years out, rather 10-15 years...as that may be when a lack of regular and proper OM will result in a visit from the local fire department. Regards, Matt Paiss, Captain San Jose Fire Department ___ 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] Top of POST mount
Unirac's 4002 series side of pole mounts can be lagged into the side of a 4x4 post. Best regards, Mark Dickson, NABCEP Certified Solar PV Installer T Oasis Montana Inc. _ From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason Szumlanski Sent: Tuesday, March 22, 2011 5:51 AM To: RE-wrenches Subject: [RE-wrenches] Top of POST mount I'm looking for a solution to mount a 230W module on the top of an existing 6x6 wood post. It can be side of post mounted, but I'd prefer top of post to get it up a little higher. Any ideas/products appreciated. Jason Szumlanski Fafco Solar ___ 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 tech contact?
Hello David, I'd be happy to help you with your technical questions. Below is my contact information. Best Regards, Ronald Paredes Applications Engineer Trojan Battery Company 12380 Clark Street Santa Fe Springs, CA 90670 Office: +1 562 236 3066 Fax: +1 562 236 3279 rpare...@trojanbattery.commailto:rpare...@trojanbattery.com www.trojanbatteryre.comhttp://www.trojanbatteryre.com/ Trojan Battery Company - Clean Energy for Life(tm) From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Dave Palumbo Sent: Tuesday, March 22, 2011 4:16 AM To: 'RE-wrenches' Subject: Re: [RE-wrenches] Trojan tech contact? Wrenches, Looking for someone to speak with on technical questions on Trojan L-16 RE batteries. David Palumbo Independent Power LLC 462 Solar Way Drive Hyde Park, VT 05655 www.independentpowerllc.comhttp://www.independentpowerllc.com NABCEP Certified PV Installer Vermont Solar Partner 23 Years Experience, (802) 888-7194 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: [RE-wrenches] Tall pole mount
Hello, Holt~ Consider calling a company that specializes in outdoor sign installation. They could install the mast as a subcontractor. They also have wind loading tables for vertical surfaces instead of sloped tracker surfaces but that could get you a good start on the engineering. Jolliness, Mick Abraham, Proprietor www.abrahamsolar.com Voice: 970-731-4675 On Tue, Mar 22, 2011 at 7:51 AM, d...@foxfire-energy.com wrote: Can you get creative? How about a Simple Timber Frame Jungle Gym /Tree House/Ground Mount.. a Screened in Summer Bug House /Studio??? How about a very large Hop Trellis? Personally I avoid Pressure treated.. I love working with native Cedar and Tamarack... Might want to get a good nail banger involved.. 30' is up there.. I do have a few pics if you're interested... good Luck. db Dan Brown Foxfire Energy Corp. Renewable Energy Systems (802)-483-2564 www.Foxfire-Energy.com NABCEP #092907-44 Original Message Subject: [RE-wrenches] Tall pole mount From: hol...@sbcglobal.net Date: Tue, March 22, 2011 9:13 am To: RE-wrenches re-wrenches@lists.re-wrenches.org Situation: Client has limited locations for array due to trees. There is one spot that would work IF pole mount is 20-25' (that would put the array top edge at 30'+). Will need to incorporate tracker to maximize production. Will definitely be consulting structural engineer. Questions: Anyone tried this? Comments or lessons learned? Holt E. Kelly Holtek Fireplace Solar Products 500 Jewell Dr. Waco TX. 76712 254-751-9111 www.holteksolar.com -- ___ 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] Tall pole mount
HI Holt, I've done a pole as you are describing. It also had a tracker on it. 3 or 4 sections of scaffolding were used to install the equipment, although if better access a lift truck would have been better. And you'll need equipment to move and install the pole. The pole was guided, and sounds like yours in the trees so not a lot of exposed wind loading. Nothing difficult just more: money, time, equipment, and parts. One note, if you are installing a tracker, I might install a ladder and a platform on the pole to make repairing the tracker quicker and easier. jay peltz power On Mar 22, 2011, at 6:13 AM, hol...@sbcglobal.net hol...@sbcglobal.net wrote: Situation: Client has limited locations for array due to trees. There is one spot that would work IF pole mount is 20-25' (that would put the array top edge at 30'+). Will need to incorporate tracker to maximize production. Will definitely be consulting structural engineer. Questions: Anyone tried this? Comments or lessons learned? Holt E. Kelly Holtek Fireplace Solar Products 500 Jewell Dr. Waco TX. 76712 254-751-9111 www.holteksolar.com ___ 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] Tall pole mount
Holt, the rule of thumb is equal parts pipe above and below ground. In your case you might want to consider a large belled 36 diameter concreate pier with a ring of oversized anchor bolts. The pole bottom would need a large flange with very robust gussets. Extend that larger base, 6-8 feet up and scaled down to a smaller diameter pole to the top. You'll want to do the complete assembly and wiring before lifting into place with a crane. Kind of like a mono-pole wind turbine. We've built trackers of ~125 sq ft PV area in high-wind locations and mounted them on Wattsun AZ-225 dual axis tracker drives. The 225 is designed for up to 225 sq ft of PVso the system has very little movement from the undersized array even in high winds like today. You'll get some pretty scary movement at that height regardless of the pipe size. Jim Duncan North Texas Renewable Energy NABCEP Certified Solar PV Installer No.031310-57 TECL 27398 nt...@1scom.net 817.917.0527 www.ntrei.com -Original Message- From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org]On Behalf Of hol...@sbcglobal.net Sent: Tuesday, March 22, 2011 8:13 AM To: RE-wrenches Subject: [RE-wrenches] Tall pole mount Situation: Client has limited locations for array due to trees. There is one spot that would work IF pole mount is 20-25' (that would put the array top edge at 30'+). Will need to incorporate tracker to maximize production. Will definitely be consulting structural engineer. Questions: Anyone tried this? Comments or lessons learned? Holt E. Kelly Holtek Fireplace Solar Products 500 Jewell Dr. Waco TX. 76712 254-751-9111 www.holteksolar.com attachment: North Texas Renewable Energy Inc.vcf___ 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] Tall pole mount
Holt, Tracker technology and reliability has come a very long ways in the last five years or so. It used to be that my service calls on trackers were -by far and away- greater in numbers than for any other component. Still, I wouldn't consider putting a tracker -at least one that uses electricity to turn- in such an inaccessible place. Two good reasons: 1) All trackers require lubrication at least once a year 2) sooner or later something is on that machine is going to require maintenance. Good Luck, Bob-O On Mar 22, 2011, at 6:13 AM, hol...@sbcglobal.net hol...@sbcglobal.net wrote: Situation: Client has limited locations for array due to trees. There is one spot that would work IF pole mount is 20-25' (that would put the array top edge at 30'+). Will need to incorporate tracker to maximize production. Will definitely be consulting structural engineer. Questions: Anyone tried this? Comments or lessons learned? Holt E. Kelly Holtek Fireplace Solar Products 500 Jewell Dr. Waco TX. 76712 254-751-9111 www.holteksolar.com___ 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] Top of POST mount
Unfortunately, UniRac has discontinued their pole mounts. Jonathan Hill, senior system design engineerSierra Solar Systems563C Idaho Maryland RoadGrass Valley, CA 95945Celebrating our 30th year in solar!tech info and foreign orders:(530) 273-6754order line: (888) ON-SOLAR (US only)FAX:(530) 273-1760e-mail:mailto:solar...@sierrasolar.comworld wide web:http://www.sierrasolar.comCheck out our 2 minute video at:http://www.sierrasolar.com/articles.php?article_id=42 On Mar 22, 2011, at 7:19 AM, Mark Dickson wrote: Unirac’s 4002 series side of pole mounts can be lagged into the side of a 4x4 post. Best regards,Mark Dickson,NABCEP Certified Solar PV Installer ™Oasis Montana Inc. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Jason Szumlanski Sent: Tuesday, March 22, 2011 5:51 AM To: RE-wrenches Subject: [RE-wrenches] Top of POST mount I’m looking for a solution to mount a 230W module on the top of an existing 6x6 wood post. It can be side of post mounted, but I’d prefer top of post to get it up a little higher. Any ideas/products appreciated. Jason SzumlanskiFafco Solar ___List sponsored by Home Power magazineList Address: RE-wrenches@lists.re-wrenches.orgOptions settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.orgList-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.orgList rules etiquette:www.re-wrenches.org/etiquette.htmCheck 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-wrenches] Tall pole mount
Yes, use an engineer, basically you are creating a wind turbine or equivalent type of structure. Works fine guyed but you need to have enough pole base weight, guy point weight, cables and pole to withstand the stresses. We went 27' height to the top of pole mount then the owner doubled the # of panels and the Uni-Rac aluminum mount cracked, requiring the removal of the whole mess and all sorts of additional bracing and welding at 25' AFG. Obviously, it is not good to field re-engineer, esp. when you do not have a clue as to what you are doing. Dana Orzel Great Solar Works, Inc E - d...@solarwork.com V - 970.626.5253 F - 970.626.4140 C - 970.209.4076 web - www.solarwork.com Responsible Technologies for Responsible People since 1988 Do not ever believe anything, but seriously trust through action. From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of jay peltz Sent: Tuesday, March 22, 2011 9:03 AM To: RE-wrenches Subject: Re: [RE-wrenches] Tall pole mount HI Holt, I've done a pole as you are describing. It also had a tracker on it. 3 or 4 sections of scaffolding were used to install the equipment, although if better access a lift truck would have been better. And you'll need equipment to move and install the pole. The pole was guided, and sounds like yours in the trees so not a lot of exposed wind loading. Nothing difficult just more: money, time, equipment, and parts. One note, if you are installing a tracker, I might install a ladder and a platform on the pole to make repairing the tracker quicker and easier. jay peltz power On Mar 22, 2011, at 6:13 AM, hol...@sbcglobal.net hol...@sbcglobal.net wrote: Situation: Client has limited locations for array due to trees. There is one spot that would work IF pole mount is 20-25' (that would put the array top edge at 30'+). Will need to incorporate tracker to maximize production. Will definitely be consulting structural engineer. Questions: Anyone tried this? Comments or lessons learned? Holt E. Kelly Holtek Fireplace Solar Products 500 Jewell Dr. Waco TX. 76712 254-751-9111 www.holteksolar.com ___ 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-wren ches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrench es.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-wrenches] Value of PV system to a home
Hi Was wondering if anyone has any new data points on the additional value a PV system adds to the home? If someone spends $X for a system and saves $Y a month/year, how is this being calculated? Do we have actuaries with enough empirical data to suggest what the numbers would look like? Realizing alot has to do with location, current cost per kWh of electricity etc. Could have swore there were some studies done to imput the value of two homes on the same street, one with solar and one without- for some granular details on the delta in values. Thanks Keith___ 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] Tall pole mount
I designed a pole mount for the US Forest Service that was 20 ft out of the ground. Its basically telescoping sections of pipe, welded together. The base was 8 Sch 80 for 10 ft, then 6 diam, and finished the last 6 ft in 4 diam. We used a massive footing with lots of rebar that was 8 ft below the ground, and spread out quite a bit. The torque calculations are not that hard to do, but its amazing how much ballast you need as the torque increases with height. (we used the inverted mushroom shape, and then made use of earth ballast on top of the concrete.) I would recommend a base plate that bolts to J bolts in the concrete, as setting the pole in concrete, and securing it level while the concrete drys is a PIA. Getting a used (pre engineered) large sign post would be your most cost effective solution, I would guess, and they probably would have a standard design for the footing for your particular soil conditions. Then you just match the array sq ft to the sign's sq. ft. An engineer would save you money possibly, as its easy to over kill this design, and blow the budget. You want it specifically for your soil type, and your local code requirements for wind speed. Another option I've tried is just a straight 6 pole, with guy wires and screw in earth anchors (or set in concrete if your soil type requires it). This doesn't require near the foundation, but you have to deal with guy cables similar to a wind install. Not as pretty, but perfectly acceptable from an engineering stand point. I can send you some pics of both if you like. I've considered the timber lattice structure as well, I think its better for larger arrays that won't fit on a single pole (over 2000watts?) BTW, Most of the times that I've run into this, we just went with a roof mount. R. Walters r...@solarray.com Solar Engineer On Mar 22, 2011, at 7:13 AM, hol...@sbcglobal.net wrote: Situation: Client has limited locations for array due to trees. There is one spot that would work IF pole mount is 20-25' (that would put the array top edge at 30'+). Will need to incorporate tracker to maximize production. Will definitely be consulting structural engineer. Questions: Anyone tried this? Comments or lessons learned? Holt E. Kelly Holtek Fireplace Solar Products 500 Jewell Dr. Waco TX. 76712 254-751-9111 www.holteksolar.com ___ 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] Top of POST mount
Here is my cobulated idea, admittedly done this way to take advantage of parts in stock: http://www.fafcosolar.com/download/402/Cobulate.pdf Unirac Solarmount rails, sandwiched together and lagged to post, and a brace from L-Feet and ¼x2 aluminum bar. Modules top or bottom mount clips to rails. Think this will work, or will the east-west twisting be too much? Jason From: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Andrew Truitt Sent: Tuesday, March 22, 2011 2:09 PM To: RE-wrenches Subject: Re: [RE-wrenches] Top of POST mount Cobulate is my new favorite word. I just hope Sarah Palin doesn't get a hold of it and begin to... cobulate... a viable candidacy. For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting NABCEP Certified PV Installer(tm) (ID# 032407-66) (202) 486-7507 tel:%28202%29%20486-7507 http://www.linkedin.com/pub/andrew-truitt/8/622/713 http://www.linkedin.com/pub/andrew-truitt/8/622/713 On Tue, Mar 22, 2011 at 7:13 AM, d...@foxfire-energy.com wrote: Just one Panel? depending on budget I'd either cobulate something out of Unistrut.. or You might find a metal fab shop to make you something... You wouldn't be the first.. Good luck.. db Dan Brown Foxfire Energy Corp. Renewable Energy Systems (802)-483-2564 tel:%28802%29-483-2564 www.Foxfire-Energy.com http://www.foxfire-energy.com/ NABCEP #092907-44 Original Message Subject: [RE-wrenches] Top of POST mount From: Jason Szumlanski ja...@fafcosolar.com Date: Tue, March 22, 2011 7:51 am To: RE-wrenches re-wrenches@lists.re-wrenches.org I'm looking for a solution to mount a 230W module on the top of an existing 6x6 wood post. It can be side of post mounted, but I'd prefer top of post to get it up a little higher. Any ideas/products appreciated. Jason Szumlanski Fafco Solar ___ 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] Top of POST mount
Hi Jason: The rail spacing seems too thin for the module. Most modules require that the rails are no more than 25% in from the edges. Nick Soleil Project Manager Advanced Alternative Energy Solutions, LLC PO Box 657 Petaluma, CA 94953 Cell: 707-321-2937 Office: 707-789-9537 Fax:707-769-9037 From: Jason Szumlanski ja...@fafcosolar.com To: RE-wrenches re-wrenches@lists.re-wrenches.org Sent: Tue, March 22, 2011 12:19:20 PM Subject: Re: [RE-wrenches] Top of POST mount Here is my “cobulated” idea, admittedly done this way to take advantage of parts in stock: http://www.fafcosolar.com/download/402/Cobulate.pdf Unirac Solarmount rails, sandwiched together and lagged to post, and a brace from L-Feet and ¼”x2” aluminum bar. Modules top or bottom mount clips to rails. Think this will work, or will the “east-west” twisting be too much? Jason From:re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Andrew Truitt Sent: Tuesday, March 22, 2011 2:09 PM To: RE-wrenches Subject: Re: [RE-wrenches] Top of POST mount Cobulate is my new favorite word. I just hope Sarah Palin doesn't get a hold of it and begin to... cobulate... a viable candidacy. For a brighter energy future, Andrew Truitt Principal Truitt Renewable Energy Consulting NABCEP Certified PV Installer™(ID# 032407-66) (202) 486-7507 http://www.linkedin.com/pub/andrew-truitt/8/622/713 On Tue, Mar 22, 2011 at 7:13 AM, d...@foxfire-energy.com wrote: Just one Panel? depending on budget I'd either cobulate something out of Unistrut.. or You might find a metal fab shop to make you something... You wouldn't be the first.. Good luck.. db Dan Brown Foxfire Energy Corp. Renewable Energy Systems (802)-483-2564 www.Foxfire-Energy.com NABCEP #092907-44 Original Message Subject: [RE-wrenches] Top of POST mount From: Jason Szumlanski ja...@fafcosolar.com Date: Tue, March 22, 2011 7:51 am To: RE-wrenches re-wrenches@lists.re-wrenches.org I’m looking for a solution to mount a 230W module on the top of an existing 6x6 wood post. It can be side of post mounted, but I’d prefer top of post to get it up a little higher. Any ideas/products appreciated. Jason Szumlanski Fafco Solar ___ 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] Top of POST mount
Looks doable alright.. I'd maybe go for two say 14" Flat 5/16" X 4" "cheek plates" on either side of the 6X.. sticking up maybe 4" from the top.. and thru bolt them thru the post with threaded rod.. That gives you a couple of ears sticking up (Similar to DPW's Can). then I'd thru bolt the rails as well.. (Like Uniracks adjustable Leg kits - bottom L-feet attachment set up). I'd use at least 3/8' hardware.. Maybe 7/16".. I'd make sure that pole was at least 4' in the ground too.. Maybe we could call it a Cobulation.. please send Pics.. dbDan BrownFoxfire Energy Corp.Renewable Energy Systems(802)-483-2564www.Foxfire-Energy.comNABCEP #092907-44 Original Message Subject: Re: [RE-wrenches] Top of POST mount From: "Jason Szumlanski" ja...@fafcosolar.com Date: Tue, March 22, 2011 3:19 pm To: "RE-wrenches" re-wrenches@lists.re-wrenches.org Here is my “cobulated” idea, admittedly done this way to take advantage of parts in stock:http://www.fafcosolar.com/download/402/Cobulate.pdfUnirac Solarmount rails, sandwiched together and lagged to post, and a brace from L-Feet and ¼”x2” aluminum bar. Modules top or bottom mount clips to rails.Think this will work, or will the “east-west” twisting be too much?JasonFrom: re-wrenches-boun...@lists.re-wrenches.org [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of Andrew TruittSent: Tuesday, March 22, 2011 2:09 PMTo: RE-wrenchesSubject: Re: [RE-wrenches] Top of POST mountCobulate is my new favorite word. I just hope Sarah Palin doesn't get a hold of it and begin to... cobulate... a viable candidacy.For a brighter energy future,Andrew Truitt PrincipalTruitt Renewable Energy ConsultingNABCEP Certified PV Installer™ (ID# 032407-66)(202) 486-7507http://www.linkedin.com/pub/andrew-truitt/8/622/713On Tue, Mar 22, 2011 at 7:13 AM, d...@foxfire-energy.com wrote:Just one Panel? depending on budget I'd either cobulate something out of Unistrut.. or You might find a metal fab shop to make you something... You wouldn't be the first.. Good luck.. dbDan BrownFoxfire Energy Corp.Renewable Energy Systems(802)-483-2564www.Foxfire-Energy.comNABCEP #092907-44 Original Message Subject: [RE-wrenches] Top of POST mountFrom: "Jason Szumlanski" ja...@fafcosolar.comDate: Tue, March 22, 2011 7:51 amTo: "RE-wrenches" re-wrenches@lists.re-wrenches.orgI’m looking for a solution to mount a 230W module on the top of an existing 6x6 wood post. It can be side of post mounted, but I’d prefer top of post to get it up a little higher. Any ideas/products appreciated.Jason SzumlanskiFafco Solar___ 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] Value of PV system to a home
In general, for every $1/year energy savings add $20 to the home's value. See http://www1.resnet.us/ratings/overview/resources/appraisal/default.htm - Original Message - From: Keith Cronin To: RE-Wrenches Sent: Monday, March 21, 2011 11:57 PM Subject: [RE-wrenches] Value of PV system to a home Hi Was wondering if anyone has any new data points on the additional value a PV system adds to the home? If someone spends $X for a system and saves $Y a month/year, how is this being calculated? Do we have actuaries with enough empirical data to suggest what the numbers would look like? Realizing alot has to do with location, current cost per kWh of electricity etc. Could have swore there were some studies done to imput the value of two homes on the same street, one with solar and one without- for some granular details on the delta in values. Thanks Keith -- ___ 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-wrenches] Rail concerns (was: Top of POST mount)
Friends: When installing modules on extruded rail systems, I worry that any vibration or motion could loosen top-down clamps. Unlike bottom-up systems that install with tried-and-true bolts and lock washers through captive holes, clamp systems seem less positive in holding capability. If one rail in the proposed design moves in relation to the other, the clamps could loosen and the modules could eventually slide right off the rail. It appears that wind turbulence could rock the modules in the proposed design, there is a lot of leverage for that. This might loosen clamps. I hesitate to design my own racking. Small business management is all about controlling risk. I do not want to be responsible for damaged modules if my design fails. At least one local AHJ forbids home-brew racks for a permitted system. I'm not sure I support that restrictive approach. I might suggest allowing them for owner-builder systems where the home owner assumes the liability. For myself, the remaining tasks associated with installing a system properly have enough pitfalls without me playing structural engineer. And lastly, it is my understanding that Solar World had temporarily abandoned mounting holes in the back rails of their new Plus modules (my quotes) and even abandoned the flanges altogether. According to what I heard, industry pressure forced them to add them back in, but as an option. This is third-hand knowledge, but I do know that removing the option to mount panels with through bolts would be a big mistake. William Miller Here is my cobulated idea, admittedly done this way to take advantage of parts in stock: http://www.fafcosolar.com/download/402/Cobulate.pdfhttp://www.fafcosolar.com/download/402/Cobulate.pdf ___ 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] Value of PV system to a home
Keith Joel, The old metric was $20 in value for each $1 saved in energy, however the Appraisal Institute hasnot supported that valuation metric for some time now and neither has Fannie, Freddie or FHA. Using the gross sales price that the customer paid for PV as a valuation numberwas also shot down. And unfortunately most regional MLS databases don't provide a category for solar electric, solar hot water or solar pool heaters, so that makes it difficult for an appraiser to use the sales comparison approach. A year ago I began developing a valuation model for PV for the Appraisal Institutes Educational Committeeandthey are now incorporating parts of itinto their training programs on "valuation of sustainable buildings"for appraisers. Earlier this year DOE awarded a grant to Sandia Natl Labto essentially do the same thing for theSolar America Cities program(soon to be theSolar America Communities program)and they have since picked up my work on the valuation model. A proof of concept spreadsheet (which takes all of the fun out of it)andpdfexplanation of the valuationmodelshould be released this summer.I will provide the download link to the list when it is available. It's important to note that any valuation model for PVneeds tobe accepted by Fannie, Freddie and FHA before it is relied on and quoted by the PV industry. There are currently ongoing discussions betweenFFF, AI and DOE on PV valuations and hopefullythey will resolve the PV valuation issues for loan transactions soon. Jamie Johnson NABCEP Certified PV Technical Sales Professional PVTS012911-44 NABCEP Certified Solar PV Installer 031310-118 General Manager SOLAR POWER ELECTRIC Original Message Subject: [RE-wrenches] Value of PV system to a homeFrom: Keith Cronin electrich...@yahoo.comDate: Tue, March 22, 2011 2:57 amTo: RE-Wrenches re-wrenches@lists.re-wrenches.org Hi Was wondering if anyone has any new data points on the additional value a PV system adds to the home? If someone spends $X for a system and saves $Y a month/year, how is this being calculated? Do we have actuaries with enough empirical data to suggest what the numbers would look like? Realizing alot has to do with location, current cost per kWh of electricity etc. Could have swore there were some studies done to imput the value of two homes on the same street, one with solar and one without- for some granular details on the delta in values. Thanks Keith ___List sponsored by Home Power magazineList Address: RE-wrenches@lists.re-wrenches.orgOptions settings:http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.orgList-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.orgList rules etiquette:www.re-wrenches.org/etiquette.htmCheck 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] Value of PV system to a home
I spoke last October with the Appraisal Journal, and specifically with Rick Nevin,author of the referenced articles.Mr. Nevin stated a recent review conducted by the Appraisal Journal confirmedthe information in the reports is as applicable today as it was when the studywas conducted, and even more so given the increased cost of energy that'soccurred since the study was published.Dan--- On Tue, 3/22/11, Jamie Johnson jjohn...@spefl.com wrote:From: Jamie Johnson jjohn...@spefl.comSubject: Re: [RE-wrenches] Value of PV system to a homeTo: "Keith Cronin" electrich...@yahoo.com, "RE-wrenches" re-wrenches@lists.re-wrenches.org, "Joel Davidson" joel.david...@sbcglobal.netDate: Tuesday, March 22, 2011, 5:01 PMKeith Joel, The old metric was $20 in value for each $1 saved in energy, however the Appraisal Institute hasnot supported that valuation metric for some time now and neither has Fannie, Freddie or FHA. Using the gross sales price that the customer paid for PV as a valuation numberwas also shot down. And unfortunately most regional MLS databases don't provide a category for solar electric, solar hot water or solar pool heaters, so that makes it difficult for an appraiser to use the sales comparison approach. A year ago I began developing a valuation model for PV for the Appraisal Institutes Educational Committeeandthey are now incorporating parts of itinto their training programs on "valuation of sustainable buildings"for appraisers. Earlier this year DOE awarded a grant to Sandia Natl Labto essentially do the same thing for theSolar America Cities program(soon to be theSolar America Communities program)and they have since picked up my work on the valuation model. A proof of concept spreadsheet (which takes all of the fun out of it)andpdfexplanation of the valuationmodelshould be released this summer.I will provide the download link to the list when it is available. It's important to note that any valuation model for PVneeds tobe accepted by Fannie, Freddie and FHA before it is relied on and quoted by the PV industry. There are currently ongoing discussions betweenFFF, AI and DOE on PV valuations and hopefullythey will resolve the PV valuation issues for loan transactions soon. Jamie Johnson NABCEP Certified PV Technical Sales Professional PVTS012911-44 NABCEP Certified Solar PV Installer 031310-118 General Manager SOLAR POWER ELECTRIC Original Message Subject: [RE-wrenches] Value of PV system to a homeFrom: Keith Cronin electrich...@yahoo.comDate: Tue, March 22, 2011 2:57 amTo: RE-Wrenches re-wrenches@lists.re-wrenches.org Hi Was wondering if anyone has any new data points on the additional value a PV system adds to the home? If someone spends $X for a system and saves $Y a month/year, how is this being calculated? Do we have actuaries with enough empirical data to suggest what the numbers would look like? Realizing alot has to do with location, current cost per kWh of electricity etc. Could have swore there were some studies done to imput the value of two homes on the same street, one with solar and one without- for some granular details on the delta in values. Thanks Keith ___ 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] Value of PV system to a home
What I have been putting forth to our customers and potential customers, is that a PV system when looked at like an appliance is simply equal to the value of the energy it produces over a given periodfor straight grid tied systems I have used what I think is a conservative number of 20 years and then I multiply that by today's energy costs...so if a system is installed in Oregon and electricity is $.09/kWh and the system is expected to produce 4500kWh per year then that system would add 4500kWh x $.09 x 20 years = $8100 in value to their property.in Oregon.. Certainly you could add average utility price increases over time to the value of the energy produced, as well as reductions in system output overtime as equipment degrades.additionally if a party is buying a house equipped with a PV system they may not want to calculate a full 20 years into that formula if the system was installed years earlier...I prefer to use conservative numbers in my formula inputs, however the argument could be made stating that the 20 year time span is too short and if the lifetime is potentially double that the value of the system also doubles. In my mind an off grid system can be more directly tied to the cost of the equipment as the grid is not an alternative to the power that is supplied. Finally, we have never had a customer disagree with this basic approach, however it still falls flat on its face if the customer is not planning on moving or selling their property! -- Sunny Regards, Kirpal Khalsa NABCEP Certified Solar PV Installer Renewable Energy Systems www.oregonsolarworks.com 541-218-0201 m 541-592-3958 o On Tue, Mar 22, 2011 at 7:44 PM, Exeltech exelt...@yahoo.com wrote: *I spoke last October with the Appraisal Journal, and specifically with Rick Nevin, author of the referenced articles. *Mr. Nevin stated a recent review conducted by the Appraisal Journal confirmed the information in the reports is as applicable today as it was when the study was conducted, and even more so given the increased cost of energy that's occurred since the study was published. Dan --- On *Tue, 3/22/11, Jamie Johnson jjohn...@spefl.com* wrote: From: Jamie Johnson jjohn...@spefl.com Subject: Re: [RE-wrenches] Value of PV system to a home To: Keith Cronin electrich...@yahoo.com, RE-wrenches re-wrenches@lists.re-wrenches.org, Joel Davidson joel.david...@sbcglobal.net Date: Tuesday, March 22, 2011, 5:01 PM Keith Joel, The old metric was $20 in value for each $1 saved in energy, however the Appraisal Institute has not supported that valuation metric for some time now and neither has Fannie, Freddie or FHA. Using the gross sales price that the customer paid for PV as a valuation number was also shot down. And unfortunately most regional MLS databases don't provide a category for solar electric, solar hot water or solar pool heaters, so that makes it difficult for an appraiser to use the sales comparison approach. A year ago I began developing a valuation model for PV for the Appraisal Institutes Educational Committee and they are now incorporating parts of it into their training programs on valuation of sustainable buildings for appraisers. Earlier this year DOE awarded a grant to Sandia Natl Lab to essentially do the same thing for the Solar America Cities program (soon to be the Solar America Communities program) and they have since picked up my work on the valuation model. A proof of concept spreadsheet (which takes all of the fun out of it) and pdf explanation of the valuation model should be released this summer. I will provide the download link to the list when it is available. It's important to note that any valuation model for PV needs to be accepted by Fannie, Freddie and FHA before it is relied on and quoted by the PV industry. There are currently ongoing discussions between FFF, AI and DOE on PV valuations and hopefully they will resolve the PV valuation issues for loan transactions soon. Jamie Johnson NABCEP Certified PV Technical Sales Professional PVTS012911-44 NABCEP Certified Solar PV Installer 031310-118 General Manager SOLAR POWER ELECTRIC ** Original Message Subject: [RE-wrenches] Value of PV system to a home From: Keith Cronin electrich...@yahoo.comhttp://mc/compose?to=electrich...@yahoo.com Date: Tue, March 22, 2011 2:57 am To: RE-Wrenches re-wrenches@lists.re-wrenches.orghttp://mc/compose?to=re-wrenches@lists.re-wrenches.org Hi Was wondering if anyone has any new data points on the additional value a PV system adds to the home? If someone spends $X for a system and saves $Y a month/year, how is this being calculated? Do we have actuaries with enough empirical data to suggest what the numbers would look like? Realizing alot has to do with location, current cost per kWh of electricity etc. Could have swore there were some studies done to imput the value of two homes on
