Distributed Energy

Combined heat and power (CHP) is hot again—in more ways than one. After a surge in capacity during the 1980s, kick-started by the 1978 federal Public Utility Regulatory Policies Act (PURPA) that was designed

Advances in firing biomass, including bagasse, in Cuban sugarcane operations.

In its recently released Energy Technology Perspectives 2015, the International Energy Agency (IEA) noted that innovation in the energy sector differs from progress in other sectors in that it tends to move

  Look out Tesla, the Germans are coming. The U.S. residential energy storage market took another step forward on January 29 when German firm sonnen announced that it was partnering with solar manufacturer SolarWorld to offer residential solar-plus-storage systems in the U.S., much like the systems announced by Tesla and Solar City last April. Unlike […]

By a 6–2 vote, the U.S. Supreme Court on January 25 ruled that the Federal Energy Regulatory Commission (FERC) had authority under the Federal Power Act (FPA) to issue rules requiring equal market participation by demand response (DR) resources. FERC Order 745, issued in 2011, required the nation’s Independent System Operators (ISOs) and Regional Transmission […]

New energy technologies, decreasing renewable energy costs, and low natural gas prices are forcing changes in the way traditional power companies must plan for the future. “A fundamental rethink is now well underway about how energy gets produced, delivered, consumed, and managed in many parts of the world, including the U.S.,” said Ethan Zindler, head […]

In his final State of the Union (SOTU) address on January 12, and arguably less so than in any other address he has given over the last seven years, President Obama made sparse mention of energy and climate change. The president dedicated most of the energy references in his address to “clean” energy, encapsulating wind […]

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 […]

In mid-November, current members of POWER’ s Generating Company Advisory Team responded by email to a set of questions about their concerns, challenges, and new initiatives as they plan for the year ahead

From issuance of the final Clean Power Plan to mammoth mergers, 2015 will be remembered as a tumultuous year. Twelve months ago, as folks were emerging from an eventful 2014, POWER made some bold predictions, including that fuel economics will drive 2015 U.S. power markets, and the labor crunch will complicate the gas turbine arms […]

North America’s reserve margins are trending downward, even though electricity demand has generally fallen, the North American Electric Reliability Corp. (NERC) warned in a new report. The international regulatory authority established to gauge and improve the reliability of North America’s bulk power system (BPS) said in its annual long-term report that electricity demand has dropped […]

The world has a problem. According to the World Bank, 1.1 billion people lack access to any form of modern energy service, and more than double that number lack access to adequate, reliable, affordable, and

Solar power has taken off the training wheels. Once an afterthought, solar photovoltaic (PV) generation has been one of the major sources of new capacity for several years. According to statistics from the

Largely dependent on imported fuel oil, many island systems must grapple with soaring electricity costs and reliability issues, in part because they are isolated and they don’t benefit from economies of scale. But some nations are seeking alternatives. It’s the same story all over the world. To fuel their economies and support growing populations, geographically […]

Will rooftop solar photovoltaics be the most economical way to deploy today’s hottest new generating technology, or will central utility solar PV systems be the best economic bet? Is there a third way? The answer appears to be “yes.” Solar photovoltaic (PV) power has emerged as the hottest new trend in renewable energy generation, primarily […]

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 […]

If you’re looking to generate distributed power with gas, your options are broader than ever, with a range of efficient, clean-burning technologies to chose from. Knowing which option is the right one depends on a balance of site constraints, fuel supplies, and environmental oversight. When California State University San Marcos (CSUSM), a 14,000-student university north […]

NRG Energy has embarked on a “reset” that will see a separation of its core distributed generation and fossil fuel businesses.  The company, headquartered in Princeton, N.J., wants to “simplify” NRG Group to cut down expenses and debt. In a transition that will begin now and be fully effective on Jan. 1, 2016, it will separate […]

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 […]

Speaking at the Solar Power International (SPI) conference in Anaheim, Calif., on Sept. 16, U.S. Vice President Joe Biden hailed the nation’s progress in expanding its solar generation capacity and announced several new investments in solar power technology as part of the Department of Energy’s (DOE’s) Sunshot Initiative. In an enthusiastic and animated address to […]

Warren Buffett bought Nevada’s NV Energy two years ago, a move widely seen as a play for solar and renewable generation. That’s working out. But as the company transitions away from legacy coal and high-priced renewable contracts signed years ago, large customers are rebelling, and the company faces a challenge to keep its big dog […]

Emerging from decades of isolation, fragility, and conflict, Myanmar has, since 2011, ushered in a reformist government and embarked upon unprecedented political and economic reforms. Among those reforms has

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.) […]

Emerging energy technologies such as rooftop solar, microgrids, and distributed generation could adversely affect reliability of the nation’s grid, a new report from the Electric Markets Research Foundation (EMRF) warns.  The non-profit research entity whose mission it is to fund studies on significant electric market issues notes in its report, “Changing Uses of the Electric […]

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 […]

Despite its apparent environmental benefits and strong government backing, generating power from landfill gas hasn’t gained traction for a variety of reasons in the U.S. Will the Clean Power Plan bolster this “dirty” renewable power source?  For the U.S. Environmental Protection Agency (EPA), the only clean thing about landfills—those engineered dumps that entomb America’s infinite […]

At the annual Power-Gen Europe Conference held in Amsterdam, in the Netherlands, International Energy Agency (IEA) Executive Director Maria van der Hoeven called for greater leadership as Europe tackles de-carbonization, distributed energy, and market integration. She began her presentation by highlighting one of the biggest changes to Europe’s power markets: The May 20 decision to […]

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 […]

A new bill unveiled on May 6 by Sen. Angus King (I-Maine) champions a general right to neutrality of the interconnection of distributed energy resources (DER) and seeks to establish a set of national parameters for how DERs are governed. The day 30 on clomid no period Free Market Energy Act of 2015 would amend […]

Renewable generation may be the most talked-about form of distributed power these days. However, historically, engine- and turbine-based smaller-scale generation—strategically located where needed by loads or for grid support—has supplied valuable distributed power. For many reasons, the roles for distributed power provided by rotating and reciprocating equipment continue to increase. The U.S. utility industry is […]