energy storage

Shrinking the Strategic Petroleum Reserve

November 24, 2015 by Geoffrey Styles

Last month's Congressional budget compromise included plans to sell 58 million barrels of oil from the US Strategic Petroleum Reserve. The world has changed enormously since the SPR was established in the 1970s, but the realignment of such an asset for the 21st century deserves a full strategic review and debate.[read more]

Texas to Overhaul Its Grid-Balancing Services With Energy Storage

December 4, 2014 by Katherine Tweed

Before the EPA released its Clean Power Plan earlier this year, with goals for each state to slash carbon dioxide emissions, Texas was already preparing for a changing energy mix. Its grid operator has been evaluating its grid-balancing needs as it takes on more wind power, while coal is retired at an increasing pace.[read more]

Re-Inventing the Electricity Industry with Storage

March 21, 2014 by Nigel Morris

No matter what side of the fence you are on, everyone is agreed that electricity companies will be very different in a few years’ time. Change is inevitable of course and we need look no further than the business world to see that sustainable businesses adapt and prosper, leaving others in their wake.[read more]

Will Batteries Be a Defining Technology Achievement in this Decade?

March 4, 2014 by Christine Hertzog

The 20th century was a time of extraordinary growth and change. In the first half of that century, relatively new technologies like electricity and telecommunications indelibly altered every aspect of life. In the latter half of the 20th century, computers radically reshaped work and play.[read more]

DOE Outlines the Path Forward for Energy Storage

December 16, 2013 by Katherine Tweed

DoE and Energy Storage

Grid-scale energy storage system prices have to come down, not just the cost of the actual storage components. At the same time, the value of storage has to be redefined in the energy landscape, according to a new report by the U.S. Department of Energy.[read more]

New Federal Agency Renewable Energy Target Overlooks the Importance of Electricity Storage

December 10, 2013 by James Greenberger

On the three-dimensional grid of the 21st Century, energy efficiency is not just about increasing the absolute amount of renewable energy generated and decreasing the amount of energy consumed. It is about managing the entire electricity grid, in all of its dimensions.[read more]

Rethinking the Energetic Cost of Electricity Storage

December 3, 2013 by James Greenberger

The simple answer to Charles Barnhart’s proposition, that you wouldn’t spend a $100 on a safe to store a $10 watch, is: yes you would—if the $10 watch costs $200 to replace. That is the analysis that California has done and that other jurisdictions in the United States and around the world are doing.[read more]

Renewable Energy Barriers Fall With New FERC Order

November 30, 2013 by Tina Casey

FERC Orders

Energy storage fans are rejoicing all across the country on the heels of a new ruling by the Federal Energy Regulatory Commission (FERC), which opens the floodgates to connecting more solar arrays and wind farms to the power grid.[read more]

Solar Storage: The New Resilient Clean Energy Technology

November 5, 2013 by Lewis Milford

Clean Energy Group's new Resilient Power Project is helping states figure out how to provide resilient power to critical infrastructure, so that needed services can be provided during a natural disaster that knocks out portions of the electric grid.[read more]


The Problem with California's Energy Storage Mandate

October 22, 2013 by Robert Wilson

California's Energy Mandate

The state of California has recently implemented a mandate for energy storage in 2020. However, taking a closer look at the specific details of the mandate shows that the actual outcomes of this mandate are, in fact, very uncertain.[read more]

Transformative Solar Energy Storage Policy for California

October 19, 2013 by Nigel Morris

California Solar Storage

The thing I like about California Governor Jerry Brown is he seems to be able to look a problem squarely in the face and simply say ” How do we solve this?”. He knuckles down very hard by all accounts. Case in point? His proposed new solar storage policy.[read more]

Four New Rulings Will Boost Solar Energy and Storage in California

October 17, 2013 by Stephen Lacey

It's often the hand of regulators and legislators that guides the direction of regulated utilities, rather than the hand of the free market. And when it comes to renewable-energy-friendly legislation, the summer and fall of 2013 were mostly unicorns and rainbows.[read more]

Lab Uses Lightning Bolt to Charge Smartphone

October 3, 2013 by Christina Nunez

Sometimes our dependency on battery-charging devices seems ironic, considering the abundance of energy around us that is being generated every day by sources as mundane as the human hand, footsteps, and lightning, which strikes the Earth dozens of times per second.[read more]


Energy Storage Is Ready To Earn a Scalable Role in Utility and Commercial Portfolios

October 1, 2013 by Jim Pierobon

Emerging Role of Energy Storage


After a series of financial setbacks and exhaustive regulatory deliberations, energy storage fed by renewables is set to earn a scalable role due largely to a new mandate in California and market rules and incentives in the PJM Interconnection. But will it? Can it?[read more]

Will Energy Storage Save the Grid?

September 30, 2013 by James Greenberger

It has long been assumed that the rise of distributed generation is a good thing for the grid and for the electricity storage business, but both assumptions should be questioned. For a grid largely based on distributed generation will have benefits, it will also have drawbacks.[read more]