Energy Storage

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, […]

The Japanese Ministry of Economy, Trade, and Industry (METI) is considering a proposal for a stimulus package that would allocate ¥93 billion (about $779 million) to support installations of energy storage systems by industrial, commercial, and residential customers, as well as a variety of energy efficiency measures, according to a report in Bloomberg. The METI […]

In mid-November, members of the POWER Generating Company Advisory Team responded via email to the following set of questions. Their comments have been edited for style. POWER: What changes in your fleet’s

Said to be the largest such facility in Europe, a 6-MW/10-MWh lithium-ion battery storage project in Bedfordshire northwest of London in the U.K. officially began operations on Dec. 15. The £18.7 million Smarter Network Storage project, a collaboration between S&C Electric Europe, Samsung SDI, and Younicos, is installed at an electric substation in the town […]

The Solana Generating Station ( solana in Spanish means “sunny spot”) is built on a 1,920-acre site near Gila Bend, about an hour’s drive west of Phoenix. According to Abengoa, which owns the facility

Texas utility Oncor announced this week that it will seek regulatory approval to spend up to $5.2 billion on 5 GW of energy storage resources to firm up its grid and improve reliability. Oncor owns the state’s largest electrical grid, and it hopes to deploy distributed storage batteries across its entire system beginning in 2018. […]

Southern California Edison (SCE) signed contracts for more than 260 MW of energy storage resources on Nov. 5, among them what will be the largest grid-connected battery system in the world, a 100-MW facility supplied by AES Energy Storage. Under its mandate from the California Public Utilities Commission (CPUC), SCE was required to sign contracts […]

Just as POWER predicted in its May issue (see “The Year Energy Storage Hit Its Stride”), energy storage is starting to gain traction, not only in the U.S., but around the globe. Europe’s largest commercial battery power plant was connected to the German grid in mid-September. With a power rating of 5 MW and an […]

The energy storage sector is taking off its training wheels. And while that may be a good thing, it comes with some risks. Two senior executives in the energy storage industry who spoke to POWER at the Energy Storage North America (ESNA) conference in San Jose, Calif., Sept 30–Oct. 2, described a promising—but challenging—future. John […]

If you’re a power sector professional and you haven’t thought much about energy storage, rest assured—you will soon. At least, that’s if the numerous companies working in this field and presenting at the Energy Storage North America (ESNA) conference in San Jose, Calif., this week get their way. But, as Craig Horne, chief strategy officer […]