US coal supplies rise 1.3 pct for week.
HOUSTON, April 7 (Reuters) - Coal stocks at U.S. power plants rose 1.3 percent this week from last week and are 16.9 percent greater than the same week of 2008, Genscape said Tuesday. Electric companies had 162.7 million short tons of coal stockpiled, compared with 160.6 million tons reported last Tuesday and 139.1 million tons the same week last year.
Nationally, U.S. generators as of Tuesday had an average of 59 days' supply of typical coal burn on hand, one more than last week, Genscape said. As of Tuesday, power plants had nine more days' supply than the same week last year. That's one more than the previous week, when plants had eight more days' supply, Genscape said.
"Stock-building is accelerating as weather effects fade and the weak economy asserts its influence," Genscape said. Even in the Mid-Atlantic, the region with the leanest stockpiles due partly to colder weather than elsewhere, supply is now rising, Genscape said.
Coal stockpiles usually grow in the spring and fall, when mild weather eases cooling or heating demand. They shrink as summer or winter sets in across the country, boosting demand for electricity for cooling or heating.
Mathematical rounding sometimes affects the results, overstating some changes and understating others, Genscape has said. (Reporting by Bruce Nichols; Editing by John Picinich)
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