Energy Storage

South Africa’s power system is preparing to receive a critical capacity boost. In March, state-owned utility Eskom grid-synchronized the first of four units of the Ingula Pumped Storage project in

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

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 […]

Executives from power companies operating in different markets revealed how their firms are being affected by low natural gas prices, pressures to achieve fuel diversity, distributed energy generation, and lax demand growth, among a number of topics. The annual executive roundtable panel at the ELECTRIC POWER Conference and Exhibition on April 19 was moderated by […]

By an 85-12 vote, the U.S. Senate passed the first comprehensive energy bill in nearly a decade, bringing a successful conclusion to months of legislative effort and overcoming a series of roadblocks in the full Senate related to the water quality crisis in Flint, Mich. The product of more than a year of bipartisan work […]

Saudi Arabia Mulling Privatization of State-Owned Utility. State-controlled Saudi Electricity Co. (SEC) is to be split into four power generation firms by the end of 2016 to increase efficiency, Abdullah

Whether utilities, technology providers, or independent third-party upstarts are best suited to create a reliable recipe for microgrid development remains an open question.

Although new microgrid configurations, technologies, and business models are still evolving in the U.S., some lessons have been learned in the past few years. Aside from the fact that financing nontraditional/non-campus microgrids is hard, if there’s one overarching lesson, it’s that a microgrid designed to provide only one benefit or rely on only one generation source is unlikely to succeed.

Duke Energy is testing a hybrid ultracapacitor-battery energy storage system (HESS) at its Rankin Substation in Gaston County, N.C., in an effort to find a more effective way to integrate renewable energy into its system. The project became operational in February, but there is still testing in progress to demonstrate the system’s multiple service applications. […]

Desert sand from the United Arab Emirates could be used in concentrating solar power (CSP) facilities to store thermal energy up to 1,000C. And replacing the typical heat storage materials used in thermal

Germany’s Energiewende (energy transition) was adopted as policy beginning in September 2010, some six months before the disaster at Japan’s Fukushima nuclear plant, and full legislative support was

We live in a world of “slow growth and volatility,” said Jeffrey Immelt, chairman and CEO of General Electric, but there’s an opportunity to “make a lot of money” if you have courage in such times.

Electric cooperatives are poised to increase their use of electric water heaters as a demand response (DR) and energy storage tool in their service territories.

The 400-MW Iowa Hill pumped storage project, planned for a site east of Sacramento as a means of dealing with ever-growing renewable generation in the area, has been canceled by its developer, the Sacramento Municipal Utilities District (SMUD), because of spiraling costs. The Iowa Hill project (Figure 1) was a planned expansion of the Upper […]

  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 […]

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 […]

The Department of Energy (DOE) announced on January 15 that it was awarding up to $40 million each in cost-shared funding to Southern Co. and X-Energy to “support work to address key technical challenges to the design, construction, and operation of next generation nuclear reactors.” It also announced on January 18 that it was awarding […]

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 […]

A status update and forecast for solar photovoltaic power in Greece, Croatia, and Italy.

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 […]