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"Free" solar installations are becoming popular here in The States. First, you have to be in a state where excess generation buyback is mandated by law. The most practical thing I've seen recently was a deal where the company does the install and maintenance, and you pay them the going rate for electricity (in other words, you don't save anything on your monthly electric bill). The company sells the excess generation back to the utility and that's how they pay for their investment. Then, depending on the size of the system you pick and other factors, you own it after a period of 15 or twenty years.
These 1kw systems look highly suspect to me. It is simply not enough capacity to run the average modern household on a practical level. There's even a firm running a commercial on TV for this sort of system, and it just reeks of scam and impracticality from my rather uninformed point of view.
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"To those of you who are wearing ties, I think my dad would appreciate it if you took them off." - Robert Moog
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