Search Results for: "negative prices"

Negative Power Prices in Rto and Bilateral Power Markets

Electricity, Energy markets / By

Michael Giberson The Energy Information Administration has published a pair of short posts on negative power prices, one looking at negative prices in bilateral power markets in the Pacific Northwest and another looking at negative prices in RTO markets across the country. Dan Haugen has a related story at Midwest Energy News. Negative power prices may seem counter intuitive, …

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Industry Advocates: Jobs Will Be Lost if Congress Doesn’t Act

3 Comments / Energy markets, Environmental policy, Politics / By

Michael Giberson My title is taken from the subtitle of a story in the Arizona Republic, the headline is: “Solar supporters link future to subsidies.” The “solar supporters” and “industry advocates” referred to are the Solar Energy Industries Association and the American Wind Energy Association, both actively lobbying Congress for extension of the so-called 1603 …

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Negative Power Prices in Ercot West: 2009 and 2010 Through September

Electricity, Energy markets / By

Michael Giberson Below are charts showing data on ERCOT West zone power prices for the 2009 and for 2010 January-September with a focus on negative prices.  The charts were derived from data provided through the ERCOT website, on their “Balancing Energy Services Market Clearing Prices for Energy Annual Report” page. These charts were prepared in the …

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Top 10 Longest Periods with Consecutive Negative Power Prices, Ercot West

1 Comment / Electricity, Energy markets / By

Michael Giberson ERCOT recently set a new record for consecutive pricing intervals below $0/MWh for balancing energy market prices in the ERCOT West region: 39.25 hours of negative prices.  The episode started at 7:45 PM on Saturday, November 6  and the negative prices continued until 11:00 AM on Monday, November 8.     The previous record …

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Negative Power Prices in Ercot West: Charts for Jan-june 2009

1 Comment / Electricity, Energy markets / By

Michael Giberson Below are three charts showing data on ERCOT West zone power prices for the January-June 2009 period.  The charts were derived from data provided through the ERCOT website, on their “Balancing Energy Services Market Clearing Prices for Energy Annual Report” page. These charts were prepared in the same way, including use of the …

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2009 Power Prices in Ercot’s West Zone: a Mix of Wind Power, Natural Gas Prices, Transmission Constraints, and (inefficient) Congestion Management Practices

2 Comments / Electricity, Energy markets / By

Michael Giberson ERCOT reached a new peak load record last week, beating the record set just a week before. Boone Pickens is backing off a little from earlier ambitions to build the world’s largest wind power facility near Pampa, Texas. The Wall Street Journal reported recently that low natural gas prices are limiting interest in …

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Frequent Negative Power Prices in the West Region of Ercot Result from Wasteful Renewable Power Subsidies

23 Comments / Electricity, Energy markets / By

Michael Giberson What is with all of the negative power prices in the West region of ERCOT? In the first half of 2008, prices were below zero nearly 20 percent of the time. During March, when negative prices were most frequent, prices were below zero about 33 percent of the time. After mostly taking the …

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