Energy Storage

California utility San Diego Gas & Electric (SDG&E) on February 24 officially put into service what is currently the largest lithium-ion storage battery in the world, wrapping up a fast-track procurement process that began less than a year ago. The 30-MW, 120-MWh system (Figure 1) supplied by AES Energy Storage and located in Escondido about […]

Pairing energy storage with rooftop solar photovoltaic (PV) systems has been widely touted as the path for greater deployment of renewable energy, but a new study from researchers at the University of Texas suggests doing so may actually increase overall energy consumption and emissions. The study, “The Impacts of Storing Solar Energy in the Home […]

Beyond major reliability events that have prompted regional blackouts in the past, the U.S. grid faces “imminent danger from cyber attacks,” warns the second installation of the Obama administration’s Quadrennial Energy Review (QER). Here are other key trends outlined in the comprehensive study of the nation’s electricity system. The QER, available on the DOE web site, identifies the threats, […]

Just as the election of Donald J. Trump could result in redirected energy policy in the U.S., 2017 elections in France and Germany could reshape plans for electricity infrastructure on the European continent. Also on both continents, some factors and trends will be out of elected officials’ control. “Difficult to see. Always in motion is […]

A tumultuous election year that was marked by market turmoil, the events of 2016 clearly showed that big change is afoot for the power sector. Many of POWER‘s bold predictions for 2016, such as that the near-simultaneous surge in U.S. natural gas production and recent enactment of environmental rules would reshape the U.S. power sector, […]

The Federal Energy Regulatory Commission (FERC) on December 15 proposed reforms to its large generator (20 MW or more) interconnection processes. The notice of proposed rulemaking (or NOPR in FERC-speak) would revise FERC’s 2003 pro-forma large generator interconnection procedures and agreement. At the FERC meeting approving the proposed rule, FERC Chairman Norman Bay said, “Much […]

French multinational power company ENGIE on October 20 inaugurated a mini-network comprising 16 kW of solar photovoltaic panels, a 45-kWh lithium-ion battery bank, and a back-up genset to supply power to Ketumbeine, a village in northern Tanzania with about 800 residents. The PowerCorner project (Figure 6) was launched in early 2015. ENGIE said the project […]

Owner/operator: SolarReserve Three-and-a-half hours north of Las Vegas, in a rocky, desolate stretch of Nevada desert, an innovative solar-storage plant has nearly completed a year of commercial operations. It also may have delivered proof of round-the-clock dispatchable solar energy. The Crescent Dunes Solar Energy Project, a concentrating solar power (CSP) plant built by Santa Monica, […]

As energy storage becomes more ubiquitous and projects grow in size and capacity, utilities of all types are exploring the best ways of putting it to use across the grid. The opportunities are large, but so are the challenges, according to a panel of executives who spoke at Energy Storage North America in October. New […]

Adoption of distributed energy storage systems, flow batteries, and hybrid battery systems is also growing, report finds November 09, 2016 05:15 AM Eastern Standard Time BOULDER, Colo.–(BUSINESS WIRE)–A new report from Navigant Research examines global energy storage projects, providing a database of more than 1,200 projects encompassing more than 43,000 individual systems, with an analysis of regional […]

Although many observers consider Elon Musk—the visionary entrepreneur who leads Tesla Motors and SpaceX—to be a disruptive force threatening the conventional power industry, he believes power companies have a bright future, if his goal to expand the use of electric cars and install vast numbers of rooftop solar systems is achieved. Speaking during a presentation […]

Nuclear power’s future—and its much-needed contribution to U.S. decarbonization efforts—may be hampered if eight pressing issues aren’t addressed within the next five years, U.S. Energy Secretary Ernest Moniz said at a recent event held at the Center for Strategic and International Studies. The issues Moniz outlined in his keynote speech at a six-hour event titled […]

Dreams of a future of round-the-clock dispatchable solar energy may have become reality at the Crescent Dunes Solar Energy Project in Nevada.

Big or small? Centralized or distributed? The answer, at least for energy storage, may be both, but what that future may be is unclear, if early discussions at the Energy Storage North America (ESNA) conference in San Diego October 4–6 are anything to go by. Speaking on the first night’s opening keynote panel, Colin Cushnie, […]

New York City is aiming to have 100 MWh of energy storage by 2020 under an unprecedented target set by Mayor Bill de Blasio on September 23. The city’s first-ever energy storage deployment target will help reduce reliance on the grid by making variable sources of energy production, such as solar panels, usable for more […]

Global resources of variable renewable energy—primarily wind and solar—despite breakneck growth over the past two decades, are beginning to run up against technological and policy limitations on further deployment, and future growth will depend on significant changes in policy and grid design, according to a new report. Released on September 20, Variable Renewable Energy Sources […]

Reliability and cybersecurity ranked as the two most important issues currently confronting the electric industry, according to surveys completed by 672 qualified utility, municipal, commercial, and community stakeholders for Black & Veatch’s “2016 Strategic Directions: Electric Industry Report.” It’s not particularly surprising to see reliability rank at the top of the list. “Reliability has always […]

Massachusetts’ lawmakers approved an omnibus energy bill that sets down an energy storage mandate and requires utilities to solicit contracts for 1.6 GW of offshore wind. The bill also outlines clean energy procurement targets, including for 1.2 GW from hydro, onshore wind, and other renewables from within the state, from neighboring states, or from Canada. […]

The governments of Ireland and Northern Ireland have big ambitions for their unified electricity market, including a wind-heavy 40% renewable generation target by 2020. Making that happen while delivering safe, reliable electricity to customers across the island means a sea change in how the grid is operated. One of the first big steps is installation […]

Dutch power grid operator TenneT on June 10 unveiled plans for a large-scale island transmission hub in the North Sea that could connect numerous offshore wind farms and transmit their generated power to the Netherlands, the UK, Belgium, Norway, Germany, and Denmark via direct current (DC) cables. Those cables, or “spokes” could also serve as […]

Wärtsilä Corporation, Trade press release, 19 July 2016 at 14.00 EET Wärtsilä today announced that it has entered into a cooperation agreement with U.S. -based Greensmith Energy, the aim of which is to further strengthen its energy system integration capabilities. Greensmith Energy, a leading provider of energy storage software and integration services, will provide the […]

The U.S. nuclear power business is in trouble, and Exelon has six units totaling more than 5,300 MW of dependable capacity on the chopping block. How will the Chicago electricity giant respond? Perhaps by acquiring more merchant nuclear capacity?

Power supply to a U.S. military base was cut off by the Turkish government following an attempted military coup in the country on Friday.

  Pairing solar with energy storage will be integral to cement the future of both emerging sectors, said experts at the Intersolar North America’s annual event held this week in San Francisco. The three-day event and exhibition was co-located with ees North America, a stand-alone event focused on energy storage technologies and services. But experts […]

Enrico Viale, head of global thermal generation for the Italian energy company Enel, kicked off an international power industry event yesterday with a keynote presentation describing the “needs” of utilities in the future.

  The Environmental Protection Agency (EPA) has unveiled details of the Clean Energy Incentive Program (CEIP), a voluntary measure central to the judicially stalled Clean Power Plan that seeks to provide guidance to states and tribes that want to meet goals under the plan when it becomes effective. The final Clean Power Plan, finalized in […]

Panels at the 2016 Edison Electric Institute convention focused on technologies and policies at what’s often called the “grid edge.”

2016 EEI Edison Award winners are AEP and AES

  Even though it may dominate forecasts, natural gas–fired generation faces a troubled expansion in the U.S., according to experts from a variety of stake-holding entities—including an industry group, a utility, a generator, and a pipeline company. Challenges that have few solutions—from price volatility, to gas transport concerns, to rule uncertainty—may upend the nation’s dependence […]

Plans are under way to install a pilot 1-MWh lithium battery–based storage system in 2018 at the world’s first floating wind farm in Aberdeenshire, Scotland. The “Batwind” system, to be installed at