Stem Inc. has finalized a master supply agreement with NEC
Energy Solutions, whereby Stem will resell and integrate its Athena AI platform
with NEC’s GSS end-to-end grid storage solution.
The agreement will result in a solar-plus-storage solution
for large-scale projects, leveraging NEC’s AEROS energy storage controls and
Stem’s AI platform to perform solar and storage optimization, wholesale market
participation services, solar charging compliance and reporting, and warranty
compliance and administration.
“We are excited to partner with a world-class company like
NEC and provide its cutting-edge technology as part of our product suite,” says
Stem COO Mark Triplett. “NEC’s strong presence in the Northeast will enable us
to quickly move forward with a variety of new projects, and offer a DC-coupled
option to our customers.”
The addition of NEC products to the Stem portfolio brings a
DC-coupled solution to the front-of-meter solar+storage market. With only a
single point of interconnection, DC-coupled front-of-meter solutions are
typically more efficient for energy production, less expensive to deploy than
AC-coupled systems and support cost-effective time shifting of excess solar,
the company says.
Stem will pair NEC’s offerings with its Athena software,
which helps developers address the most complex aspects of solar+storage
projects. The collective intelligence of the Athena and AEROS platforms enable
users to predict battery operational costs and layer on market knowledge,
forecasting and participation with known operating constraints such as ITC
limitations and SMART program rules. Developers and asset owners will be able
to increase the value of their project throughout its lifetime by automating
energy trades based on different market scenarios.
The initial pipeline includes joint projects for Kearsarge
Energy, a full-service renewable energy project development, finance and holding
company based in Boston. Under this agreement, Stem and Kearsarge will work on
large-scale storage projects co-located with solar.
NEC’s GSS has been in commercial service since 2008, with
over 750 MW of energy storage installed, contracted or awarded, in applications
including peak shaving, renewable integration (ramp management), frequency
response, frequency regulation and voltage regulation.
PHOTO: Stem’s Mark Triplett
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