ERCOT

Significant and rapid changes that are reshaping North America’s power sector will likely leave Texas and Ontario, Canada, with supply shortfalls over the next decade, and energy deficiencies could also occur during off-peak conditions in the Midcontinent Independent System Operator (MISO) area and the Western Electricity Coordinating Council (WECC) region, the North American Electric Reliability […]

COMMENTARY Texas has the most wind capacity of any state, generating about 16% of its electricity from wind. In August, as temperatures rose above 100F and consumers increased their use of air conditioning, Texas’ grid operators struggled to meet the record demand for electricity. Many of the wind turbines could not operate because the wind […]

What does the 21st century power market look like? That is the question the European Union (EU) is attempting to answer with the new electricity regulation and revised electricity directive passed at the end

The percentage of coal-fired generation in the U.S. electricity mix will continue to decline, the Energy Information Administration (EIA) said May 9, with gas-fired generation accounting for at least 40% of the nation’s power this summer and output from renewables continuing to rise. EIA’s latest Short-Term Energy Outlook (STEO) said coal-fired units will produce only […]

The Electric Reliability Council of Texas (ERCOT) has issued a fresh warning that continued “above-normal” growth in electric demand could require it to enter Energy Emergency Alert (EEA) status to maintain system reliability this summer.  As it released its final Seasonal Assessment of Resource Adequacy (SARA) for the upcoming summer season (June to September), a preliminary […]

Grappling with a historically low planning reserve margin of 7.4%, owing to a mass of coal plant closures, the Electric Reliability Council of Texas (ERCOT) is forecasting record electric use this summer and warns it could issue energy alerts at “various times.”  ERCOT said its March 5–released final Seasonal Assessment of Resource Adequacy (SARA) for […]

California and Texas—two regions where summer reliability concerns were forecast earlier this year—are suffering extreme temperatures and are scrambling to relieve stress on the grid. The California Independent System Operator (CAISO)—the grid operator that serves about 80% of California—on July 24 and 25 issued statewide Flex Alerts, calling for voluntary electricity conservation during peak afternoon […]

Electricity is produced by a variety of generating units, each with different lead times and costs to be readied for service, and production costs once brought online. Because electricity is a commodity that

Higher-than-average temperatures forecast for much of the U.S. this summer won’t affect reliability in most regions, though concerns remain for Texas and Southern California, according to the Federal Energy Regulatory Commission (FERC). Presenting the “Summer 2018 Energy Market and Reliability Assessment,” on May 17,  FERC staff said that most entities that are part of the […]

The Electric Reliability Council of Texas (ERCOT) on April 30 updated its summer 2018 planning reserve margin to 11% based on resource updates, but it warned that the regional grid serving most of Texas could still suffer rotating outages under extreme conditions. In its final Seasonal Assessment of Resource Adequacy (SARA) report for the upcoming […]

To remain competitive in power markets increasingly characterized by disruptions, NRG Energy plans to accelerate its transition from a pure independent power producer (IPP) model to a more simplified customer-driven integrated power model that favors its retail businesses. In a number of presentations showcased on March 27 as part of NRG’s 2018 Analyst Day, company […]

The recent retirement of older generating units and high peak usage owing to economic growth could tighten operating reserves in the region served by the Electric Reliability Council of Texas (ERCOT) this summer. The grid operator said on March 1 that total resource capacity for the upcoming summer (spanning June through September 2018) is expected […]

An analysis by the University of Texas at Austin’s Energy Institute shows wind power generation capacity in Texas may already have surpassed coal-fired capacity in the state, and wind almost certainly will have leapfrogged coal by early next year, as wind farms continue to dot the landscape while more coal plants in the state are […]

Vistra Energy moved to halt a financial hemorrhage stemming from unprofitable conditions in the Electric Reliability Council of Texas (ERCOT), announcing plans to shutter two more coal-fired power plants—the 1.1-GW Sandow Power Plant (which includes a 2009-built unit) and the 1.2-GW Big Brown plant—in early 2018. The company’s decision made public on October 13 comes on […]

A week after the Department of Energy (DOE) proposed a rule to bolster uneconomic coal and nuclear generators in competitive power markets, Luminant announced that an “unprecedented low power price environment” will force it to retire a 1.9-GW coal-fired power plant operating in the Texas market. The plant’s economic woes suggest a larger swath of […]

Harvey—a massive weather system, which has so far killed 38 people, displaced thousands of others, and caused widespread flooding in Texas—downed 7.6-GW of generation resource capacity, along with two major 345-kV transmission lines and 85 other high-voltage transmission lines serving the Gulf Coast. As of 1 p.m. on August 30—about four days and 18 hours […]

In an effort to become a fully regulated power company, American Electric Power (AEP) has agreed to sell four Midwestern power plants—representing a total of 5.2 GW—to a newly formed joint venture of Blackstone and ArcLight Capital Partners for about $2.17 billion.  AEP will sell: the 1,186-MW natural gas–fired Lawrenceburg Generating Station in Lawrenceburg, Ind. […]

  Even though it may dominate forecasts, natural gas–fired generation faces a troubled expansion in the U.S., according to experts from a variety of stake-holding entities—including an industry group, a utility, a generator, and a pipeline company. Challenges that have few solutions—from price volatility, to gas transport concerns, to rule uncertainty—may upend the nation’s dependence […]

Uncertainty concerning a number of environmental rules is clouding planning measures, the Electric Reliability Council of Texas (ERCOT) said on May 3. Citing its latest Capacity, Demand, and Reserves (CDR) report—a snapshot of existing and planned resources and load forecasts for the next 10 years—the grid entity that manages about 90% of Texas’ electric load […]

A regional haze program final rule for Texas expected soon from the Environmental Protection Agency (EPA) could speed up the retirement of about 4.7 GW of coal-fired capacity, warns the Electric Reliability Council of Texas (ERCOT) in a new generation outlook. The grid operator’s Dec. 1–released “Report on the Capacity, Demand and Reserves (CDR) in […]

In a Monday morning session at the annual meeting in Austin of the National Association of Regulatory Utility Commissioners (NARUC), panelists and commissioners traded comments on challenges and successes related to integrating increasing levels of renewables while ensuring reliable grid operation. David Boyd, VP of government and regulatory affairs for the Midcontinent Independent System Operator […]

The Clean Power Plan could force the retirement of up to 4 GW of coal-fired capacity in the region served by the Electric Reliability Council of Texas (ERCOT) starting as soon as 2022, an updated analysis suggests.  The independent system operator that manages about 90% of Texas’ electric load acknowledged that fewer coal units are […]

In the early 2010s, the Electric Reliability Council of Texas (ERCOT) was staring down the barrel of dangerously low reserve margins, a combination of growing demand and an energy-only wholesale market that

Editor’s note (Aug. 3): Adds compliance cost details, key changes The Environmental Protection Agency’s (EPA’s) final Clean Power Plan will seek to tamp down the nation’s carbon dioxide (CO2) emissions from the power sector by 32% from 2005 levels by 2030—about 9% more ambitious than its original proposal. The first-ever final national standards to limit […]

If you have been paying attention to renewable energy growth in the U.S. during the past decade, you likely know that Texas leads the nation in wind power development. In fact, the portion of the state that is served by the Electric Reliability Council of Texas (ERCOT)—about 75% of land area and about 90% of […]

Bills to eliminate incentives that have accelerated the expansion of wind power found momentum in Texas and Oklahoma last week.  Texas Moves to Nix RPS, CREZ The Texas Senate on April 14 approved, by a 21–10 vote, legislation that would end the state’s Renewable Portfolio Standard (RPS) and its Competitive Renewable Energy Zone (CREZ) program. […]

 While fuel switching may be the easiest option for hitting the 2020 and 2030 goals set by the Environmental Protection Agency’s (EPA’s) proposed Clean Power Plan, it may impede reaching longer-term climate targets said experts at an April 8 symposium hosted by the Central Texas Association for Energy Economics and the Energy Institute at the […]

The Obama administration’s Clean Power Plan could result in the retirement of between 3.3 GW and 8.7 GW of coal-fired capacity in the Electric Reliability Council of Texas (ERCOT) grid and jeopardize electric reliability for the state that is already power strapped, the independent system operator (ISO) says in a new analysis.  The Environmental Protection Agency’s […]

Most issues concerning resource adequacy have arisen in the context of restructured wholesale and retail electric markets, rather than from traditionally regulated electric markets, a new study from the Electric Markets Research Foundation (EMRF) suggests.  The nonprofit EMRF,  established in 2012 by “academics and other experts” to fund studies on electric market issues, notes in […]