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Electric energy storage: Preparing for the revolution

By Paul Dvorak | October 11, 2016

This article comes from White & Case LLP and is authored by Jane Rueger and Dan Hagan.

Until now, there have been only a few, comparatively costly ways to temporarily store large quantities of electric energy—keeping it available for later use, when needed. Technological hagan-and-ruegeradvances (in battery technology, in particular) are poised to make energy storage efficient and commercially viable in markets across the US. And these technologies are emerging just as environmental pressures are encouraging a focus on renewable energy—typically based on unpredictable sources such as sun or wind—which can only be reliable at every hour of every day if they are paired with effective energy storage.

Now is the time for industry participants, regulators and other stakeholders to brainstorm creatively about what the future of energy storage markets should look like.

As a result of these and other factors, energy storage is one of the few areas predicted to have massive growth potential in the current global energy markets. Yet the path ahead is not straightforward.

While the technologies are evolving rapidly, many market practices and regulatory standards have not begun adapting for the changes in structures and conventions that energy storage will require. Everyone with an interest in energy storage and renewable energy needs to start thinking now about the best ways to update our market and regulatory approaches.

If we address these issues thoughtfully in advance, we can be prepared to unlock the full potential of energy storage commensurate with technological advances bringing down costs and making storage widely commercially viable.

Energy storage provides massive growth opportunities

At least one source projects that the world’s energy storage capacity will double within only a year—from 1.4 gigawatt-hours added in 2015 to 2.9 gigawatt-hours added in 2016—and will reach 21 gigawatt-hours by 2025. The US is leading this charge, with 18.3 megawatts of energy storage deployed in only the first quarter of 2016.1

Although some energy storage technologies, like pumped hydroelectric energy storage, have existed for decades, the last five years have brought an explosion of interest in other new technologies, such as battery storage.

A June 2016 US White House report extolled the benefits of energy storage and noted the great strides taken to incentivize deployment of energy storage in the US.2 Still, as the report acknowledged, considerable obstacles must be surmounted before we can realize the full potential of energy storage.

Some of these obstacles are technical, since many storage technologies remain in a developmental state. Other obstacles are commercial, including building energy storage of sufficient scale and finding financing for nascent energy storage technologies.

But a third, major category of significant obstacles includes regulatory barriers and market structures that have been slow to accommodate the vibrant new potential of energy storage.

The promise of these new technologies and approaches can only be met if markets are structured in a way to allow these new technologies and approaches to provide grid management services.

The promise of these new technologies and approaches can only be met if markets are structured in a way to allow these new technologies and approaches to provide grid management services.

The promise of these new technologies and approaches can only be met if markets are structured in a way to allow these new technologies and approaches to provide grid management services.

Read the rest here: https://goo.gl/dJt9Nr


Filed Under: Energy storage

 

About The Author

Paul Dvorak

Comments

  1. Robert R Bullard says

    October 20, 2016 at 9:58 am

    ”Although some energy storage technologies, like pumped hydroelectric energy storage, have existed for decades…”

    30 per cent of the wind farm sites west of the Mississippi River are candidates for pumped hydro storage embedded in the physical and electrical infrastructure of the wind farm sites or immediately contiguous thereto. The sites meet basic topographic requirements for the construction of dual (upper and lower) lagoons within 1 km of each other with operating heads of at least 30 meters. Sealing the bottoms of the lagoons, as is done with liquid waste storage or treatment lagoons, minimizes the water requirements of such closed loop systems, opening the opportunity where surface water is constrained for the use of well water to charge and recharge the lagoon volumes due to evaporation and incidental leakage. With proper operational algorithms the value of the wind generation can be maximized to meet peak demand on the grid or peak storage at low demand. Further, there are now available dependable floating PV systems that could be installed on the lagoons to enhance system value and reduce wind wave effects on the low/high stage shorelines of the lagoons.

    It time to take a serious look at a modern variant of a storage method that has ”existed for decades”

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