So, you’ve got a few quotes from solar installers and want to know which solar power system will give you more energy / output / electricity. Let me teach you how to calculate solar output like the pro’s. This way you can double-check their quotes to know you’re getting a good deal.
Step 1: Grab your solar quotes and look for the specific solar module name and how many solar modules will be installed. Make sure you know the exact panel. Circle the panels and how many. Ex. 20 x SunPower SPR-200-BLK-U.
Then find the exact solar inverter in the estimate. This might be SMA SunnyBoy, Xantrax, Fronius, or Enphase. Circle this too. Ex. SMA SB4000US (240V).