Energy Storage

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

Battery storage firms and energy storage experts at the Energy Storage North America (ESNA) conference in San Diego Oct. 13–15 were effusive in their praise of battery storage’s potential while

Duke Energy announced the completion of a 2-MW battery-based energy storage system that has been installed to increase power grid reliability and stability for the PJM regional transmission organization. Installed at its retired W.C. Beckjord coal-fired power plant in New Richmond, Ohio, construction began in August, and the system was placed in operation on Nov. […]

The German battery storage market took a leap forward as German generating company Steag announced on Nov. 4 that it will invest €100 million in six 15-MW battery storage projects at several of its power plants in Germany. The batteries are expected to come online mid-2016 through early 2017. The facilities will be sited at Steag’s generating […]

Seven power producers have joined 74 other companies in signing on to the Obama administration’s American Business Act on Climate initiative, which is aimed at rallying U.S. companies behind the need for action on climate change ahead of international climate talks in Paris next month. The seven are Berkshire Hathaway Energy (BHE)—parent company of PacifiCorp, […]

Battery storage has emerged from the fringes of the power sector to challenge both industry conventions and traditional generation. Where it goes from here, however—the future of battery storage technology—is a matter of some debate. Both storage firms and energy storage experts at the Energy Storage North America (ESNA) conference in San Diego Oct. 13-15 […]

Energy storage needs better energy storage policy. Speaking at the Energy Storage North America (ESNA) conference in San Diego on Oct. 12, Garrett Fitzgerald, senior associate with the Rocky Mountain Institute (RMI), was frank about the challenge facing energy storage technologies: They’re starting to get well ahead of the regulatory regimes that are needed to […]

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 […]

Utility-scale energy storage in the form of pumped water storage has a long history. One of the oldest U.S. plants found itself in need of an upgrade after 40 years of service. Having the right equipment for the job is proving to be essential. With the current power market challenges and increasing amounts of variable […]

For decades, hydropower plants were mainly built and operated as a cost-efficient source of clean electricity. But despite more than a century of development, there is still scope for expanding generation from

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.) […]

AES has begun construction of what will be the largest energy storage project in Europe when it comes online later this year in Carrickfergus, Northern Ireland. The 10-MW/40-MWh Kilroot Advancion Energy Storage Array is being added to the AES UK & Ireland Kilroot Power Station in County Antrim along the country’s east coast. The grid-connected […]

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 […]

Concentrating solar power has found a partner in thermal storage, but costs remain high. Solar photovoltaic generation may have a partner in rapidly expanding battery options, but the economics are uncertain. Is there room for both approaches, or will one be crowded out? Battery storage is officially hip. Once a subject of concern largely only […]

Beacon Power to Supply Flywheels for Hybrid Alaska Energy Storage Project. Beacon Power on May 26 said it will supply flywheels for a hybrid energy storage project in Anchorage, Alaska, as part of an agreement

Tesla and energy storage firm Advanced Microgrid Solutions (AMS) on June 4 announced a deal for 500 MWh of storage capacity using Tesla’s utility-scale Powerpack batteries, which it introduced last month. A portion of the contract—50 MW, 200 MWh—will go toward meeting AMS’s commitment with Southern California Edison (SCE) under the utility’s procurement deal last […]

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 […]

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 […]

In his May 6 appearance on Comedy Central’s Daily Show, Secretary of Energy Ernest Moniz addressed both the military and civilian energy issues that the Department of Energy is responsible for. His discussion with host Jon Stewart ranged from the recent negotiations with Iran over that nation’s capability to enrich fissile material to domestic energy […]

Unless you’ve been in a cave the last 24 hours (or at least off the internet), you’ve no doubt heard about Tesla’s move into the battery storage field. I attended the event last night and reported on it for POWER in the wee hours afterward. (The announcement came at night so Tesla CEO Elon Musk […]

Ending several months of speculation, electric vehicle firm Tesla Motors officially moved into the energy storage market on April 30 with the announcement that it would begin marketing two new battery products, the home-based Powerwall and the larger, utility-scale Powerpack. Tesla CEO Elon Musk unveiled the two batteries at a flashy ceremony at the Tesla […]

Falling prices and technological improvements have brought battery storage systems into direct competition with traditional distributed generation, demand response, and peaking generation resources. But making one work efficiently and profitably is not just plug and play.   Last fall, Southern California Edison (SCE) had some big decisions to make. The giant utility, which serves 14 […]

California’s burgeoning renewable generation sector, given renewed vigor with a proposed increase in its renewables mandate, means it will need robust energy storage capacity going forward, said speakers at a session at the Electric Power Conference and Exhibition April 22 in Rosemont, Ill. Much of that storage capacity may be provided by a mammoth combined […]

The U.S. energy infrastructure needs not just substantial investment for the future but also considerable rethinking about its role and functions in order to be positioned to deal with a rapidly changing energy landscape and evolving threats from cyber attack and climate change. That was the message from William F. Hederman, Jr., Department of Energy […]

Southern California Gas Co., the National Renewable Energy Laboratory (NREL), and the National Fuel Cell Research Center (NFCRC) have teamed up to launch the first power-to-gas demonstration projects in the U.S. The two facilities will be located at the NFCRC at the University of California, Irvine and at NREL headquarters in Golden, Colo. Power-to-gas technology […]

Renewable energy development company SunEdison announced on Mar. 25 that it had agreed to purchase up to 1,000 vanadium redox flow batteries totaling more than 100 MW of storage capacity from Imergy Power Systems to be used for community minigrid projects in India. SunEdison, which has an equity stake in Imergy, in January received financing […]

What turns a trend from trendy to established? In the energy industry it can be any number of things, from a technology breakthrough, to a new market, to forces of nature. The shale gas boom in the U.S. is the most well-known example of a technology trend that has changed the economics for all power […]

Here are selected thought-provoking (and even unexpected) comments made by presenters at the 10th annual MIT Energy Conference on Feb. 27 and 28 in Cambridge, Mass. Comments are summarized and paraphrased unless presented in quotes. For more on the event, see “Exelon: The Utility of the Future Views Change as Enabling, Not Disruptive” and the […]

Two developments yesterday, one quiet, one rather loud, suggest the long-predicted existential threat to the traditional utility model may be at hand. The quiet news came from the California Independent System Operator (CAISO), which reported that utility-scale solar generation crossed the 5-GW mark for the first time yesterday. Between 10 a.m. and 2 p.m. PST, […]

On Nov. 14 at Los Angeles Air Force Base, California (L.A. AFB), U.S. Air Force officials unveiled the Department of Defense’s (DOD’s) first nontactical vehicle fleet composed entirely of plug-in electric vehicles (PEVs). Actual rollout of the 42-vehicle fleet happened prior to the official ceremony, Christina Greer of the base’s Public Affairs office told POWER, […]