Home Power TechnologyPhotovoltaic (PV) Cells generate electricity, which can be used immediately or sent directly into the grid via a "grid tie system" during the day when demand is greatest. Your electric company buys your electricity at the rate set by the State of North Carolina. The grid tie system is the least expensive power system because there are no batteries or charge controller. Some home owners add a battery backup system at a later time as insurance against power failures and brown-outs. Water heaters reduce electric consumption by heating water during the day. Approximately 30% of electric power in a home is burned by keeping a tank of water hot 24/7. Solar water heaters reduce your electric bill significantly. Heat storage untis can keep your home all winter long, with zero or significantly reduced fuel costs, even on the coldest days. Radiant cooling is also an inexpensive way to provide cooling during the summer. Coils in the ceilings absorb heat that builds up in living spaces and transfers it outside in to the ground. Even if additional cooling is required during the hottest days, radiant cooling provides significant savings. Fuel cells are also becoming more affordable for homes and farms and can run on a variety of fuels like methane, water, alcohol, or methanol. Residual heat is produced by fuel cell stacks which can be heat a home during the winters or can even power auxiliary microturbines. Collecting solar heat and electricity provides ample energy to keep your household warm in the winter, cool in the summer and plugged in--even when the power goes out in your area. Soon, inexpensive, quick and clean electric cars will plug into your home power supply to fuel up--for free. At work employers will provide docking carports to keep your car batteries fully charged--and you'll get to drive in the carpool lanes! |
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