They usually only hold power for a few hours, discharging those batteries to meet peak evening demand when people are home and using power but the sun is already setting.
I'm sure that is the case. I got my information from the charter boat captain (who is leasing the timberland beside me) who talked to the night watchman.
I don't think I've mentioned my new earth friendly religion here. I use Crown Prince Tutmose, the real dude behind the Moses character as my deity. Anyway, Neil is both a Prophet and a Saint according to Tutmosian dogma. He's been spreading the gospel for almost 50 years now.