Energy Storage

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 […]