Sign up | Login with →

ercot

Utilities' Consumption Conundrum

November 14, 2011 by Christine Hertzog

Every business wants to grow the sales of their product or service – telecom carriers want you to consume more minutes of smart phone use, restaurants want you to eat out more often, and retailers love to see repeat customers walk into their stores.  It would be counterproductive to have, for instance, restaurants invest in...[read more]

Record-Setting Power Consumption In Texas -- ERCOT Narrowly Avoids Rolling Blackouts

August 14, 2011 by Michael Giberson
Image via Wikipedia

Much in the news in Texas these past few weeks have been new peak power records and several grid emergency conditions which saw the ERCOT power system narrowly avoid rolling blackout a time or two. Tom Fowler of the Houston Chronicle‘s Fuel Fix blog has been tracking the story closely, see selected links below. Rebecca Smith provided a...[read more]

Texas' Record Electricity Demand Creates Battling Headlines about Wind Power

August 9, 2011 by Steve Skutnik
3

Last Wednesday, August 3rd, saw a new record set in the ERCOT electricity service area. ERCOT wasted no time in putting some data from these events online. The American Wind Energy Association (AWEA), put up a blog post titled Wind helps meet new Texas record for electricity demand. Now, that's something we would expect, except for...[read more]

Power Outages, Hot and Cold

June 1, 2011 by Michael Giberson

A FuelFix post by Tom Fowler relays ERCOT’s report that the Texas grid operator expects to have enough power to serve customers reliably this summer. At the end of Fowler’s post he casually mentioned, in connection with the rolling blackout in ERCOT last winter, “a report by federal reliability officials concluded power plant operators...[read more]

Texas Gaining Smart Grid Buzz

May 26, 2011 by Michael Giberson

Texas is becoming a recognized leader in smart grid development, and just wait, it is going to get better. One external bit of circumstantial evidence for this claim comes from a meeting last week at the White House hosted by Aneesh Chopra, Assistant to the President and Associate Director for Technology within the White House’s...[read more]

Wind Power And CO2 Emissions

May 23, 2011 by Willem Post
19

 The New England Electric Grid, NEEG, managed by ISO New England, ISO-NE, has a generating capacity of about 34,020 MW, electrical energy supplied to the grid is about 130,000 GWh/yr. It includes over 350 central power plants and 8,000 miles of high-voltage transmission lines to serve about 6.5 million customers. The supply to 2010...[read more]

Is the deregulated market in the ERCOT region sufficiently competitive?

February 18, 2011 by Michael Giberson
1

Michael Giberson Two groups of municipal utilities in Texas, long critical of electric power deregulation in Texas and ERCOT in particular, have joined forces to issue a report, “The story of ERCOT: The grid operator, power market & prices under Texas electric deregulation.” The municipals describe the report as examining “governance...[read more]

The ERCOT market in Texas readies for change in market design

November 19, 2010 by Michael Giberson
1

The ERCOT grid is about to switch fundamental market designs from its current zonal market to a nodal market. Here is a clip from an ERCOT document describing the change: Excerpt from ERCOT's "Understanding: Texas Nodal Market Integration" For a more readable version, check out the full brochure, which is evailable from ERCOT’s website...[read more]

Negative Power Prices in ERCOT West: 2009 and 2010 through September

November 11, 2010 by Michael Giberson
1

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...[read more]

Is Texas CREZ a model for getting transmission lines built elsewhere in the country?

September 28, 2010 by Michael Giberson

Current and anticipated changes in the patterns of electric power production and consumption drive the demand for new transmission lines to help get lower-cost power from generators to consumers. The biggest changes in power production have come from growth in renewable power supplies, so the expansion of transmission is seen as critical...[read more]

Incentives for efficient use of storage in electric power systems

March 28, 2010 by Michael Giberson

In the most recent Energy Journal, Ramteem Sioshonsi has an article examining the welfare effects of the incentives to use energy storage in electric power systems. (“Welfare Impacts of Electricity Storage and the Implications of Ownership Structure,” See volume 31:2 here.) He considers the incentives faced by consumers, generators, and...[read more]

Wind power and natural gas-fired power and power markets

March 3, 2010 by Michael Giberson

The Wall Street Journal published a lengthy article by Russel Gold on the behind-the-scenes struggle over cost allocation and performance obligations between wind power producers and conventional generators.  Tension over how variable resources participate in markets have been simmering for years, but wind power and other...[read more]

Texas Wind Rips off Taxpayers and Rate Payers, Money to Flow to China

November 6, 2009 by Charles Barton

In 2006, the Electrical Reliability Council of Texas (ERCOT) published a study that showed that while West Texas Wind resources were considered among the best in the United States, they were poorly matched to the needs of Texas Electrical consumers. The ERCOT staff reported:These data indicate that the representative areas in West...[read more]

Negative power prices in ERCOT West: Charts for Jan-June 2009

July 22, 2009 by Michael Giberson

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...[read more]

Are wind power producers the low cost suppliers of frequency control service in ERCOT?

March 30, 2009 by Michael Giberson

ERCOT tries to keep the electric power grid in Texas operating at 60 Hertz (i.e., 60 cycles per second, Hertz is abbreviated “Hz”), like the rest of North America, and a few other places in the world.  If electrical load grows faster than power supply, the system frequency will fall below 60 Hz; if the load drops off faster than...[read more]