Household electricity bills skyrocket

Electric bills have skyrocketed in the last five years, a sharp reversal from a quarter-century when Americans enjoyed stable power bills even as they used more electricity. Households paid a record $1,419 on average for electricity in 2010, the fifth consecutive yearly increase above the inflation rate, a USA TODAY analysis of government data found. The jump has added about $300 a year to what households pay for electricity. That's the largest sustained increase since a run-up in electricity prices during the 1970s. Electricity is consuming a greater share of Americans' after-tax income than at any time since 1996 — about $1.50 of every $100 in income at a time when income growth has stagnated, a USA TODAY analysis of Bureau of Economic Analysis data found.

Greater electricity use at home and higher prices per kilowatt hour are both driving the higher costs, in roughly equal measure:

•Residential demand for power dropped briefly in 2009 but rebounded strongly last year to a record high. Air-conditioners and household appliances use less power than ever. A new refrigerator consumes half the electricity as a similar one bought in 1990. But consumers have bigger houses, more air-conditioning and more electronics than before, outpacing gains in efficiency and conservation.

"People have made a lot of money selling weight loss programs. It's the same for energy. Behavior is hard to change," says Penni Conner, vice president of customer care at NSTAR, a Boston-based utility.

•Prices are climbing, too, hitting a record 11.8 cents per residential kilowatt hour so far this year, reports the Energy Information Administration. The increase reflects higher fuel prices and the expense of replacing old power plants, including heavily polluting — but cheap to operate — coal plants that don't meet federal clean air requirements.

Electricity cost varies widely depending on where you live. Cheapest: Northwest communities near hydropower dams — as low as 2 cents per kilowatt hour. Most expensive major utility: Consolidated Edison, supplier of New York City — 26 cents per kilowatt hour, according to EIA.

High taxes, limits on air-polluting fuels and the expense of maintaining an underground transmission system keep consumer costs high, says ConEd spokesman Chris Olert.

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