Page 27 - ESJ – ENERGY STORAGE JOURNAL

COVER STORY: US STATES TO WATCH

100% renewable energy supply
by 2045, with a goal of reach- Simon: New York is doing a big over
ing 30% by the end of next year.
Investor-owned utility Hawaiian haul of their storage rules in terms of how
Electric Company reached 27%, storage can participate in the wholesale
last year.
To do this, the state is deploy- markets. Again, this points to opportunity
ing residential to grid-scale stor- opening up for storage to provide grid
age-plus-PV systems. Across the services.
Hawaiian Electric Companies’
five-island service territory, 18%
of residential customers use rooftop solar — 300MW of storage, with other state IOUs
around double that of Connecticut, which required to procure 10MW. Each four-hour
is second at 6.8%. Incidentally, California duration system must be ready for dispatch
is third at 5.9%, Arizona, fourth at 4.5%, by January 1, 2022.
and Utah and Massachusetts both at 3.4%, Additionally, New York is rolling out
according to the Smart Electric Power Alli- its $280 million (with more to come and
ance. As a renewable energy source, there is doesn’t include a $40 million addition to
now 418MW of residential solar capacity the NY Sun program) Storage Bridge In-
online in the state. centive storage program to accelerate the
Parallel to the state’s adoption of PV is the growth of the energy storage industry and
adoption of storage. On the island of Oahu, drive down the cost of deploying energy
solar+storage installations rose 1,830% storage projects.
(773 solar+storage permits granted) in Cuomo announced the war chest during
2017 from the previous year, according to a Earth Week, with commentators suggesting
report from the state’s Department of Busi- it could spur a 1.8GWh flurry of additional
ness Economic Development and Tourism. storage capacity. The cash is part of a larger
In March, the state’s Public Utilities Com- $400 million investment to achieve its am-
mission approved plans for projects total- bitious storage target.
ling 247MW of solar with almost 1GWh of He says: “The state is also overhauling
storage: three on Oahu, one on Maui and its wholesale market participation rules for
two on Hawaii Island. The ESSs will be storage. Again, this points to opportunity
used for peak shifting services and provide opening up for storage to provide grid ser-
enough power for 105,000 homes per year vices.
while eliminating the use of more than 48 “There are quite a few opportunities that
million gallons of imported fossil fuels an- are coming out. The only reason storage
nually.
Two months earlier, Californian firm
Clearway Energy Group was awarded two In 2015, the volcanic archipelago of Hawaii became
projects on Oahu: 156MWh storage cou-
pled with 39MW of PV capacity (Mililani the first US state to set the goal of 100% renewable
1 Solar plant) and a 144MWh systems cou- energy supply by 2045, with a goal of reaching
pled with 36MW of PV (Waiawa Solar proj-
ect). The company signed 75MW of power 30% by the end of next year. Investor-owned utility
purchase agreements with utility Hawaiian Hawaiian Electric Company reached 27%, last year.
Electric Company for the projects.
The projects are just the tip of the iceberg
in the state, with HECO expressing the
desire to install around 1.4GWh of stor-
age along with 135MW solar to its grid by
2022.

The big cheese
In his 2018 State of the State address, New
York governor Andrew Cuomo announced
a 1.5GW energy storage target for the state
by 2025. The target is part of a far-reaching
Energy Storage Roadmap that includes add-
ing 3GW of energy storage by 2030, a figure
established by the Public Service Commis-
sion in December 2018.
To meet these goals the New York State
Energy Research & Development Author-
ity and the Department of Public Service
expects investor-owned utility company
Consolidated Edison to procure at least

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