ALBANY -- The organization that oversees New York's electricity system expects the state to have a sufficient supply of power this summer.

The New York Independent System Operator says the summer 2008 peak electricity usage will reach almost 34,000 megawatts, barring unexpected weather extremes.

NYISO says that's about 5 percent higher than the peak of just more than 32,000 last summer and on a par with the summer peak in 2006.

Peak demand is the year's highest electricity demand for a one-hour period, and typically happens on a late summer afternoon.

New York City and Long Island -- which account for nearly half the state's summer electricity use -- are expected to have more than sufficient capacity.