[RE-wrenches] Cost per kWh

Can't put my hands on the equation for determining cost per kWh of a system. Brain seems to have ground faulted in remembering it correctly. Potential client with multi-oriented roof needs substantiation of additional upfront cost of micro-inverter vs. string inverter. Thought for the day:

Re: [RE-wrenches] Fwd: Re: GVFX temperatures

Anyone know of a source for a SMA 2100? or any reasons for this inverter being hard to find? Gary Easton Appalachian Renewable Power Systems NABCEP Certified Solar PV NABCEP Certified Solar Thermal 740-277-8498 Thankfully my MX60's software is old enough to still have an option to control it's

Re: [RE-wrenches] Irradiance data

Aloha Folks: NREL had a book list order form years ago (which you could download online), and you could check any of the books you wanted, and they would send them to you for free! This irradiance data book was one of the free books I got at the time, plus others on BIPV and other topics.

Re: [RE-wrenches] acre/MW

In the past, I have needed 6 acre/MW for poly arrays 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: Scott McCalmont

[RE-wrenches] Polycrystal PV modules with clear backer sheet: Who builds 'em?

Hi, Mechanics~ I like the Sanyo bifacial PV modules for several reasons but I guess the biggest reason (for me) is the way they transmit light between the cells...due to the clear backer sheet. This seems dandy for carports, picnic shelters, etc. The $/watt for the Sanyo bifacials affects the

[RE-wrenches] Supply Side Interconnections - Maximum Backfeed

Hi All, Next to grounding, I find the calculation of the maximum amount of backfeed current allowed in a supply side connection to be the most vague issue in Article 690. Let's assume we have a 400A, 480/277 service in a commercial building, a 400A main service disconnect, and the jurisdiction

Re: [RE-wrenches] Supply Side Interconnections - Maximum Backfeed

Mike.i may be wrongbut I think i am rightyou are limited by the wire size feeding the supply and/or the transformer size which supplies the service.depending on the physical location of the tap you may be limited by the enclosure and the enclosure ratings as well would love to

Re: [RE-wrenches] Polycrystal PV modules with clear backer sheet: Who builds 'em?

Suntech Semi-Shade modules have a clear backing. On Thu, Mar 4, 2010 at 12:15 PM, Mick Abraham m...@abrahamsolar.com wrote: Hi, Mechanics~ I like the Sanyo bifacial PV modules for several reasons but I guess the biggest reason (for me) is the way they transmit light between the cells...due

Re: [RE-wrenches] Supply Side Interconnections - Maximum Backfeed

Going all the way up to the rating of the service might not be such a good idea. The utility may use smaller wires for the service drop than you would expect based on the ampacity tables in the NEC. Considering the example of a 400 A service: - PGE (local utility) requires 350 kcmil Aluminum

Re: [RE-wrenches] Polycrystal PV modules with clear backer sheet: Who builds 'em?

Mick, Silicon Energy (www.silicon-energy.com, Arlington, WA) sells PV modules with a glass back sheet that are see through. They are heavier and pricey, but have a unique module design and mounting system. Randy Brooks Brooks Solar, Inc. Solar Power for People 140 Columbia View Chelan, WA

Re: [RE-wrenches] Fed. 30% grant to businesses

Wrenches, I was just complementing the US Treasury on there swift response to the grant application. My customer submitted his application on the 13th of January. We received this response on the 26th (10 business days later). === From: