Borrego has completed construction of 15 projects totaling 96 MW of solar and 50 MW/169 MWh of energy storage for AES Corporation in Massachusetts and New York.
The storage portfolio is Borrego's largest build for a single customer to date.
The solar-plus-storage systems range in size from 1.6 MW to 12 MW (solar) and 910 KW/1.7 MWh to 9 MW/17 MWh (storage).
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When fully interconnected, the portfolio will collectively generate enough clean electricity annually to power roughly 10,885 homes and offset 82,659 metric tons of climate-warming carbon dioxide emissions.
The projects are among the engineering, procurement, and construction (EPC) firm's first DC-coupled solar-plus-storage installations.
“Being an early adopter of energy storage and solar-plus-storage technologies has not been without its challenges, but the completion of the AES portfolio has made it all worthwhile,” said John duPont, vice president of solutions at Borrego.
The coupled solar+storage systems allow the projects to participate in the Solar Massachusetts Renewable Target program and access the NY Value of Distributed Energy Resource tariff. The projects will also participate in wholesale markets.
Taken together, the DC-coupled solar+storage systems are expected to generate up to 30% additional energy output from the same interconnection cost as a standalone solar project.
Borrego Solar installation site 0 South Main Street Freetown located at 76 S Main Street Assonet, MA. -- 11.7 MW PV + 4.8 MWh / 26.3 kWh ES (Photo By: Greg M. Cooper / Borrego Solar) 
Borrego Solar installation site 0 South Main Street Freetown located at 76 S Main Street Assonet, MA. -- 11.7 MW PV + 4.8 MWh / 26.3 kWh ES (Photo By: Greg M. Cooper / Borrego Solar) 
Borrego Solar installation site RT 52 West - Walden located at 1343 Route 52 in Walden, NY -- PV + ES - 5.8 MW PV + 4.4 MWh / 8.8 kWh ES (Photo By: Greg M. Cooper / Borrego Solar) 
Borrego Solar installation site RT 52 West - Walden located at 1343 Route 52 in Walden, NY -- PV + ES - 5.8 MW PV + 4.4 MWh / 8.8 kWh ES (Photo By: Greg M. Cooper / Borrego Solar) 
Borrego Solar installation site 10 Shore Road - North Brookfield -- PV + ES - AES - 8.4 MW PV / 10.6 kWh ES (Photo By: Greg M. Cooper / Borrego Solar) 
Borrego Solar installation site at 131 Bullock Road Freetown, MA. -- PV + ES - 12 MW PV + 4.8 MWh / 26.3 kWh ES (Photo By: Greg M. Cooper / Borrego Solar) 
Borrego Solar installation site at 131 Bullock Road Freetown, MA. -- PV + ES - 12 MW PV + 4.8 MWh / 26.3 kWh ES (Photo By: Greg M. Cooper / Borrego Solar) 
Borrego Solar installation site at 131 Bullock Road Freetown, MA. -- PV + ES - 12 MW PV + 4.8 MWh / 26.3 kWh ES (Photo By: Greg M. Cooper / Borrego Solar) Earlier in June, Borrego announced that it had spun off and sold its solar and energy storage development business to maximize its focus as an EPC.
Energy transition investment firm ECP will take over Borrego's development business, staff, and project pipeline of over 8.4 GW of solar and 6.4 GW/25 GWh of energy storage.
Borrego currently manages the performance of 1.4 GW and over 1,000 solar operating assets.
