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What is an appropriate PPA cost for a commercial installation I'm trying to determine the appropriate PPA terms for a solar PPA for commercial installations where a company may use the power, sell it to the companies' tenants, and/or supply power to the grid. Those are 3 different rates...

I have a friend with an interesting problem. They have a barrel type of roof with a bitumen covering. The arc of the roof is about 38 feet and the depth of the arc is about 5 feet, it is about 100 feet long. There is a parapet on the sides that is about 3 feet high. What solar mounting...

I'm looking at helping someone with putting up solar and it seems that in the area they have a secondary power network which does not allow power to be fed back into the grid. Is there an easy way to determine if an address is on a secondary network instead of a radial network? I've looked...

My solar system has 2 Growatt grid tied inverters, a 6kw and a 10kw. They have been working flawlessly for 2 months, then yesterday, the 10kw inverter (model min 10000TL-xh-us) just stays stuck in standby. No faults showing. I've tried the things mentioned on this site, power cycling...

Just completed and got approval to operate my 15.3kw system. Used the following: 24 550w panels, installed in 6 rows of 4 (landscape in a 10° East/west configuration). 6 400w panels (on angled roof, so did use flashing and rails) 30 Tigo inverters 1 10kw growatt inverter, & 1 6kw growatt...

So, the online permitting firm I am using, doesn't seem to know the official SF fire setback requirements. To be honest, I asked 3 companies and got 3 answers... I have a mixed roof, 1 part is an A frame, and another part is a flat roof. The A frame is in the front of the house. Most of the...

So I have a flat roof, and I've looked at this product called Solar Stack which uses construction foam to attach solar panels to the roof. They passed engineering in California (and Florida). No holes in the roof, a lot quicker and a little cheaper. Am I missing something?

So, I have consulted several electricians and 2 solar vendors. The electricians say one thing, the vendors' electrical engineers say another. Here is the issue: I just bought a 225buss/200amp panel with 70amp solar ready...