Example Projects

Boothbay Energy Storage

Size: 0.5 MW / 3.0 MWh
Location Boothbay Harbor, ME
Technology: Advanced Lead Acid
Integrator: Lockheed Martin
Online date: April 1, 2015
Description: The Boothbay project is part of a larger pilot of “Non-Transmission Alternatives (NTAs)” procured by Central Maine Power and its program administrator GridSolar to defer an $18 million transmission line upgrade that would otherwise be needed to provide capacity and reliability particularly during the summer vacation season. Convergent’s asset is fully dispatchable by Central Maine Power and, along with the other NTAs in the program, has allowed the utility to address its infrastructural needs at around 50% the cost of a traditional line upgrade.

Sault Ste. Marie Energy Storage

GE Battery Enclosure
Size: 7.0 MW / 7.0 MWh
Location Sault Ste. Marie, ON
Technology: Lithium-Ion
Integrator: General Electric (GE)
Online date: March 31, 2017 (expected)
Description: This 7 MW / 7 MWh lithium-ion battery project will provide Ontario’s Independent Electricity System Operator with Reactive Support and Voltage Control services via a pay-for-performance service contract. Additionally, the project has been strategically located in PUC Services territory, allowing it to balance and integrate 60 MWs of photovoltaic solar capacity and 150 MWs of peak load on the end of a 115 kV radial circuit.

Guelph Energy Storage

Size: 5.0 MW / 0.5 MWh
Location Guelph, ON
Technology: Flywheel
Integrator: Temporal
Online date: March 31, 2017 (expected)
Description: This 5 MW / 0.5 MWh flywheel project will provide Ontario’s Independent Electricity System Operator with regulation services via a pay-for-performance service contract. Located within the greater Toronto metro area, this project will additionally help support the electricity grid in one of the fastest-growing urban regions in North America.

Kings County Energy Storage

Eos Enclosure
Size: 10.0 MW / 40.0 MWh
Location Central California
Technology: Hybrid zinc
Online date: May 1, 2020 (expected)
Description: Convergent was awarded a 10 MW, 40 MWh energy storage contract by Pacific Gas and Electric Company via their 2014 Energy Storage Request for Offers solicitation. The system will provide up to four continuous hours of dispatchable capacity to meet PG&E’s Resource Adequacy (RA) / system capacity requirements.

Orange County Energy Storage

Size: 35.0 MW / 140.0 MWh
Location Orange County, California
Technology: Lithium-ion
Online date: December 1, 2019 (expected)
Description: This 35 MW / 140 MWh award represents three lithium-ion energy storage installations awarded through Southern California Edison’s highly-competitive Preferred Resources Pilot solicitation. The assets will be sited in strategic locations throughout southern Orange County, CA and will provide local area electricity capacity and grid-balancing ancillary services to the region.