Tracking Growth in Energy Storage
> ENERGY STORAGE is indispensable to renewable power’s
success. Increasingly, it is also becoming a prominent feature in
the appeal of electric vehicles. Storage works at the wholesale
and retail levels by facilitating grid stabilization and home
energy management. Not surprisingly, the technology is catching
on with utilities and consumers.
Released in September, the “U.S. Energy Storage Monitor”
confirms this trend, showing a dramatic increase in the deployment
of energy storage in the United States. According to the report,
which was co-authored by GTM Research, 40. 7 megawatts (MW)
of energy storage were deployed in the second quarter of this year, a
ninefold increase from the same quarter in 2014.
To put this number into perspective, most of that growth is
attributed to the interconnection of a 31.5-MW project in Illinois
built by the Chicago-based developer Invenergy LLC. The report
describes it as the largest project to come online in two years.
As big as it is, the project does not account for all of the
storage growth in the United States. At 87 percent of the total,
the utility or so-called “front-of-meter” segment represented
most of the deployments accounted for in the second quarter.
In the “behind the meter” segment, nonresidential storage
had its best quarter in history, deploying 4. 9 MW. In addition,
the residential segment grew by 61 percent, but it still only
represents about 1 percent of the total deployments.
Storage projects are being deployed in different regions.
According to the report, since the first quarter of last year, 1. 3
MW of residential and 10. 8 MW of nonresidential storage have
been deployed in California. The Golden State is joined by the 13
states and the District of Columbia that make up the territory of
the PJM Regional Transmission Organization, where 100 MW of
utility-scale storage were deployed during the same time frame.
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