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Ana increasing peaK demand is the reason Dominion wants to build the new corridor.
Electricity cannot be stored in large quantities. Therefore, utilities have to maintain capacity to meet the maximum power demand customers may want at a given time.
Norvelle said Dominion’s engineers are analyzing what conservation measures would need to be in place by 2011 to obviate the need for a new transmission corridor. Those figures will be included in the application the utility submits to the State Corporation Commission later this month, he said.
Dominion offers financial incentives for large customers — primarily commercial and industrial facilities—to use less power from the grid during times of peak demand, such as the hottest days of summer.
Those customers receive a favorable price rate to be taken off the grid and either run on their own generation or use less power during those times. The program is not available to residential customers, Norvelle said.
Those contracts relieve some 314 megawatts from Dominion’s grid on peak-demand days. The new transmission corridor proposal is designed to pump another 3,000 megawatts — roughly 10 times the amount relieved by peak-rate contracts — into Northern Virginia.
Lazaro said some utilities in
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