4 ms·

What is a 95% panel? Solar cell efficiency is generally in the 20-30% range. https://en.wikipedia.org/wiki/Solar_cell_efficiency#/media/File:CellPVeff(rev20070

• Tostino 6y ago
  I believe GP was talking about "95% offset" rather than 95% efficiency. So he sized the number of panels to offset 95% of his usage is my guess.
• croutonwagon 6y ago
  They are panels with slight manufacturing defects that you can buy and wont have a full lifetime or near the normal efficiency. So are less expensive as well. They used to sell them last time i was looking into it, which was about 3 years ago.