IEEE Power & Energy Magazine - September/October 2017 - 112

in my view

J. Chris Shelton

energy storage
from Hollywood stunt double to action hero

A

A DVA NCED BAT T ERY-BASED
energy storage solutions are increasingly getting the assignment of "stunt
double" for the generation, transmission, and distribution "actors" in
electricity systems around the world.
In Hollywood, the stunt double is a
skilled look-alike in film and television used to replace the standard actor for the most physically challenging
sequences during filming. Stunt doubles allow the show to go on even when
the primary actors are incapable of
performing the work.
The analogy holds in the energy
world in that storage is rising to the
challenge to meet our most pressing
needs, especially when our traditional
infrastructure categories are unable to
perform to the challenge. We saw a great
model for this in the last year when the
advanced battery solution providers responded within six months to California's need for resources to stand in for
gas-starved power plants. None of our
traditional actors of generation, transmission, or distribution could have "filmed
the sequence."
Fortunately for us in the electric
power sector, storage is not only unmatched at these challenging stunts,
but it can deliver a great lead performance as well. To continue the Hollywood analogy, advanced storage is a
stunt double that can also be a lead action hero-eliminating the need to pay
Digital Object Identifier 10.1109/MPE.2017.2708878
Date of publication: 17 August 2017

112	

ieee power & energy magazine	

for both the actor and the double. In
many cases, storage costs less than the
traditional actor and delivers an Oscarworthy performance.

Helping Electricity Reach
Its Full Potential
The U.S. Department of Homeland
Security identifies energy, particularly
electricity, as the one out of the 16 critical infrastructure sectors on which the
other 15 depend. Electricity serves a
foundational role for all infrastructures
in our society, so the cleaner and more
resilient it can be, the greater the benefit. How we operate our electric utility
infrastructure is of critical importance
to the effective running of our economies and quality of life of our fellow
citizens-as stated previously, energy
storage is starting to play a key role.
With its advantages of limited siting
profile, no direct emissions, and limited
water needs plus superior capabilities in
integrating renewables and dealing with
disturbances, advanced energy storage
is a key tool for our journey in realizing
the full potential of electricity.

Storage Performing the
Grid's Most Challenging
Jobs at Scale
Advanced energy storage solutions
have taken leading roles in some of the
world's largest and smallest power markets. Nine years ago, PJM Interconnection, which serves 13 states and Washington, D.C., in the United States with
a power system of more than 100 GW,

encouraged the entry of storage into the
most critical parts of its power services,
resulting in improved performance and
the lowest costs since the creation of its
market more than 15 years ago. CDECSING in Northern Chile has estimated
up to US$37 million in savings per year
from the storage solutions operating
on its 2-GW power system for nearly
a decade. In both cases, storage was
standing in for traditional power plants
initially and ultimately provided much
lower costs and a better performance on
critical factors like responsiveness.
Beyond these long-running operational cases, we are also seeing the procurement of new power resources shift
in places like California and Great
Britain. In these markets, the traditional process for ensuring that power
resources will adequately meet system
needs has been modified to include
and properly evaluate energy storage at
a massive scale. The results have been
dramatic, with over 6,000 MW of advanced storage being offered across
procurements in California since 2013.
Last year in the United Kingdom, National Grid selected more than 200 MW
of advanced storage in its initial procurement process, which included an
estimated 4,000 MW of offers, and
months later selected 500 MW of advanced storage in its capacity market.
It is notable that, even though the market did not offer any special incentives
for storage and the competition was
(continued on p. 108)
september/october 2017



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