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IIRC At least in Fla, we only get charged on our kwh used in residences. There aren't demand charges until you get to 3 phase buildings and even then only once you hit a kwh barrier.
Also, the caps in the system still absorb power. There is no free 10kwh knocked off your bill just by installing them. The 130 kw motor thats now pulling 120kw is only doing so because the caps charged up 10 kw earlier in the day. Think of capacitors like batteries, they charge up when the load is low and feed out when demand is high. Since residences don't get charged for demand, there is no incentive to install them. If anything your bill may be higher as the electric meter can now read the full current draw of the inductive loads (motors) rather than only a portion of them due to power factor losses.
edit: though in industrial complexes where they do get charged big time for demand and they have massive multiple 100+hp electric motors, they could easily see 8%-25% savings in a properly sized cap bank.
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83 - 944, daily driver
62 - VW Karmann Ghia, never moving restoration
"Oh Bother," said Pooh, as he chambered another round.
Last edited by idontknow; 10-15-2008 at 07:41 PM..
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