T&D

Getting the most cost-effective use out of a battery storage system isn’t just a matter of plug-and-play. Where and how you site a battery can make a big difference in how well it does its job. Several battery experts who spoke to POWER explain what you need to think about. So you want to buy […]

It’s not being overly dramatic to say that the power industry is at its biggest inflection point to date. Even ignoring the effects of environmental regulations and (in North America, at least) cheap natural

What are distributed energy resources (DERs)? For many people, rooftop solar is the first thing that comes to mind, but when you ask that question of an independent system operator (ISO)—the folks who

Two senior power sector executives opened the 2016 ELECTRIC POWER Conference and Exhibition in New Orleans April 19 with a message that generators need to “think big” and embrace possibilities of disruptive technologies—or risk being run over on the road to the future. Leo Denault, chairman and CEO of Entergy Corp., delivered the opening keynote […]

Canadian utility Fortis wants to acquire ITC Holdings Corp., the largest independent electric transmission company in the U.S., to benefit from “low-risk” regulated power markets. The deal valued at about $11.3 billion will allow Fortis to enter the U.S. regulated power market overseen by the Federal Energy Regulatory Commission (FERC), providing a “unique, highly diversified, […]

Calpine Corp. will idle a 578-MW natural gas–fired combined cycle (CCGT) power plant in northern California for likely the remainder of the year. The Houston-headquartered company told POWER on January 15 that it will put the 2001-built Sutter Energy Center in Yuba City in “cold layup.” That means that while will the plant will not […]

A new grid modernization blueprint released by the Department of Energy (DOE) on January 14 seeks to integrate conventional and renewable power sources with energy storage and efficiency measures, while ensuring the grid is resilient against cyberattacks and climate change threats. The DOE said that the plan will help “frame new grid architecture design elements, […]

The autonomous region of Xinjiang has an important strategic position in China’s economy—which consumes more energy than any other nation—yet several conditions limit the most effective use of its fuels. This article provides an overview of the situation. Since ancient times, the Xinjiang Uygur Autonomous Region (Xinjiang) has been in a particularly important position in […]

Grid resiliency has become a widely discussed topic recently. Experts have been called before congressional hearings to testify on the topic, and close calls—including a massive solar storm that missed Earth

The autonomous region of Xinjiang has a strategic position in China’s economy, yet several conditions limit the most effective use of its fuels. This article provides an overview of the situation. A more detailed version, with maps and tables, appears here under the same title. Since ancient times, the Xinjiang Uygur Autonomous Region (Xinjiang) has held […]

It is true that electric motors and transformers are some of the most dependable pieces of equipment installed at power plants. They can, in many cases, withstand a high level of mistreatment while continuing

Siemens, the only provider of direct-current (DC) offshore wind connection projects, in October unveiled a potentially game-changing technology that it says enables cheaper and simpler grid connection of wind

The final session of the annual meeting of the National Association of Regulatory Utility Commissioners (NARUC) in Austin ended on Nov. 11 on a “high note,” as outgoing president and Florida Commissioner Lisa Edgar had promised, with a panel titled “The Straight Dope on Energy & the Marijuana Industry.” The subtitle, “(Don’t laugh, it could […]

Following regulatory approval of a $10.6 billion transaction in over 20 countries and regions, GE’s acquisition of Alstom’s energy activities is now complete. GE and Alstom sealed the deal first proposed in early 2014 with the signing of a 1,500-page “master agreement.” GE had initially proposed buying Alstom’s lucrative business for €12.35 billion, but following […]

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 […]

Integrating California Independent System Operator’s (CAISO’s) and PacifiCorp’s networks—the two largest high-voltage transmission grids in the West—could yield billions of dollars in shared cost reductions within the first 20 years alone through efficiencies, a new study says.  The report commissioned by PacifiCorp stems from a memorandum of understanding signed by the independent system operator (ISO) […]

Battery energy storage has exploded in deployment over the past several years, but the majority of it by capacity, especially in North America, is deployed at grid scale. That may be a problem, because a new study from the Rocky Mountain Institute (RMI) suggests the greatest value to the system lies with behind-the-meter batteries—distributing battery […]

ABB in August commissioned the world’s first high- and medium-voltage gas-insulated switchgear (GIS) bays that use a new “eco-efficient” gas mixture instead of sulfur hexafluoride, the greenhouse gas that is typically used. The 170/24-kV switchgear bays were supplied to Swiss utility ewz for a new 3 x 50-megavolt-ampere substation (Figure 5) in Zurich, Switzerland, which […]

The societal impact of a “Black Sky Day”—a term used by electric infrastructure security experts when discussing a collapse of the North American power grid—would be devastating, according to Dr. Daniel Baker, distinguished professor of Planetary and Space Physics at the University of Colorado, Boulder. Baker testified before two subcommittees of the U.S. House of […]

Broad, bipartisan energy legislation that would allocate federal funding to grid technology research and demonstration along with a number of other initiatives, including cybersecurity and the energy-water nexus, has cleared the Senate Energy and Natural Resources Committee with an 18–4 vote.  The committee’s chair, Sen. Lisa Murkowski (R-Alaska), and Ranking Member Sen. Maria Cantwell (D-Wash.) […]

When a large electromagnetic pulse (EMP) or geomagnetic disturbance (GMD) event occurs—which, according to Sen. Ron Johnson (R-Wis.), there is “100% certainty” will happen at some time in the future—as many as 9 out of 10 people in the U.S. could die. Johnson, chairman of the U.S. Senate Committee on Homeland Security & Governmental Affairs, […]

Five of Germany’s largest lignite power plants will be mothballed to allow the country that is already phasing out nuclear power to meet ambitious climate goals by 2020.  In what it called a “milestone decision,” the government on July 2 agreed to scrap plans to impose a controversial—and by some accounts, illegal—climate tax for conventional […]

A new report from the Government Accountability Office (GAO) reveals surprising aspects about how federal subsidies for electricity have been distributed, how the power generation mix has shifted, and how consumption has transformed since 2001.  The June 29–released report, “Generation Mix has Shifted, and Growth in Consumption has Slowed, Affecting System Operations and Prices,” responds […]

Wind is no longer a niche alternative energy industry, American Wind Energy Association (AWEA) CEO Tom Kiernan told attendees at WINDPOWER 2015.  Despite policy hurdles, the wind sector has seen exponential growth and formidable cost reductions; it has the government’s endorsement for a low-carbon future; and it’s making up an ever-larger share of the nation’s […]

In contrast to the bitter partisanship that has paralyzed Congress for the past few years—especially with respect to energy policy—the Obama administration’s first Quadrennial Energy Review (QER) received a mostly warm welcome from House GOP members, who echoed its concerns with the state of the nation’s energy infrastructure during a hearing on June 2. “Many […]

The Obama administration’s first installment in the Quadrennial Energy Review (QER) drew a variety of responses in its first public hearing before the Senate Energy and Natural Resources Committee on April 28. Chairman Lisa A. Murkowski (R-Alaska) opened the hearing with a nod to the still-in-limbo Keystone XL pipeline. She noted that though the QER […]

No one can accuse the officials who oversee California’s energy market of lacking ambition. Fresh on the heels of Gov. Jerry Brown’s January promise to raise the state’s renewable generation target from 33% in 2020 to 50% in 2030, the California Independent System Operator (CAISO) in April announced that it and Oregon utility and Berkshire […]

With unprecedented changes and challenges facing the U.S. energy sector, the Department of Energy has spearheaded a comprehensive assessment of the nation’s energy policy. Released the same day as ELECTRIC POWER 2015 opened, the first installment of this review was highlighted in the conference’s keynote address. U.S. energy infrastructure needs not just substantial investment for […]

Duke Energy announced on May 19 that it will construct a new 650-MW natural gas–fired combined cycle power plant (CCPP) and retire its 375-MW Asheville coal power plant by early 2020. The plan also includes the addition of solar generation at the site as well as construction of a new substation and 40-mile transmission line […]

At Tennessee Valley Authority (TVA), repeated generation transitions have marked the giant public power utility’s long history, from hydro, to coal, to nuclear. The latest resource plan points to natural gas, along with renewables and energy efficiency, as the basis for the agency’s generating future. At the Tennessee Valley Authority (TVA), generation transitions are nothing […]