Northwestern power prices on the rise; central prices lowered by cooler weather


Oct. 4, 2002 — Northwestern U.S. electricity prices have been increasing for the past three trading days as hydroelectric output has dropped, the Energy Information Agency reported.

Prices in California and the desert southwest have been mixed over the last seven trading days. Electricity prices in the Mid-continent region decreased Oct. 2) for the first time in several trading days as cooler weather lowered the demand for electricity.

Over the past seven days, the average price at all trading centers has ranged between $32.59 and $39.52 per megawatthour.

According to the Bloomberg Power Lines Report, water flows at the Grand Coulee Dam, on the Colorado River, have slowed to 78.9 thousand cubic feet per second yesterday down from 97.9 a week earlier. That reduced output at the largest U.S. hydroelectric power plant by 15%.

Reflective of this reduction in power generation, prices at the Mid-Columbia trading center have increased 12% to $28.84 per megawatthour over the last three trading days.

Prices in California and the desert southwest have been mixed over the last seven trading days. At the NP-15, California’s northern transmission grid, prices ranged between $39.84 per megawatthour and $32.29 per megawatthour. Prices at the Four Corners trading zone, in the desert southwest, ranged between $34.84 per megawatthour and $28.31 per megawatthour.

Prices in the Mid-continent region decreased for the first time in several trading days as cooler weather lowered the demand for electricity. Prices at the Cinergy Hub decreased 9% to $39.56 per megawatthour.

In the Southeastern U.S., prices, which have been increasing for several trading days, declined slightly Oct. 2) as temperatures moderated decreasing the demand for electricity. Prices at the SERC decreased just $.36 to $43.84 per megawatthour. This price is still 59% higher than last weeks low of $27.54 per megawatthour on September 26.

Similar to the Southeast, prices in the Northeast decreased yesterday (October 2) as cooler weather reduced the demand for electricity. Prices at NEPOOL have decreased for two consecutive trading days to $46.67 per megawatthour on October 2. At the PJM West, prices decreased 14% to $47.96 per megawatthour on October 2. New York City prices (New York Zone J) decreased $5.00 to $56.00 per megawatthour.

Over the past seven days, the average price at all trading centers has ranged between $32.59 and $39.52 per megawatthour.


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The Clarion Energy Content Team is made up of editors from various publications, including POWERGRID International, Power Engineering, Renewable Energy World, Hydro Review, Smart Energy International, and Power Engineering International. Contact the content lead for this publication at Jennifer.Runyon@ClarionEvents.com.

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