I’m a big fan of solar PV technologies, but not blinded to its limitation. This story from the Buffalo News points out something that everyone — homeowners, businesses, government bureaucrats — need to consider as they try to “greenify” their operations. Officials in Cheektowaga are a little furious to learn that after 13 sunless days in a row the solar-powered street lights they installed didn’t work. The company that installed them — Johnson Controls — did disclose that the system can only go 2 days without sun before the battery packs with the lights drain. Who knew that December/January could be so dreary and overcast? Duh!
I guess it pays to think these kinds of things through.