So how do you know which solar power system is right for you? Jeffrey Yago presents an informative overview in the March/April, 2013 “Backwoods Home Magazine” (Issue #140). I’ve put an excerpt below.
What’s the difference?
By Jeffrey Yago, P.E., CEM
Several weeks ago I received a call from a woman in Florida complaining that they just had a power outage lasting several days and her solar system quit working. Although I had no idea who she was and never had anything to do with the installation of her solar system, she was very distressed and I wanted to at least point her in the right direction.
After a few questions it was clear that what she had purchased was a “grid-tie” solar system, and these systems must be “tied” to a working utility grid to operate. These systems do not have any battery backup capability, so their only function is to sell solar-generated power back to the utility grid, which offsets some or all of the metered usage for a given month. Any month the solar-generated power exceeds metered usage of the homeowner, the utility will credit this excess towards a future month when the utility demand exceeds solar generation.
Read the whole article here:
Excerpt used with permission of Backwoods Home Magazine.