Canadian-based, Polaris Renewable Energy, has made a formal submission of its 71.4 MW Battery Energy Storage System (BESS) Standard Offer Agreement (SO1 Agreement) to the Puerto Rico Energy Bureau (PREB). This is through Puerto Rico Electric Power Authority (PREPA)’s representative LUMA Energy. Approval of the agreement is expected within 3 months. If approved, the offer will be executed between PREPA and Polaris Power US, a wholly owned subsidiary of Polaris Energy.
Punta Lima BESS Project Factsheet
Location: Punta Lima, Puerto Rico
Developer: Polaris Renewable Energy Inc.
Subsidiaries Involved: Polaris Power US (BESS Resource Provider); Punta Lima Wind Farm (Generation Facility Owner)
Technology Used: Battery Energy Storage System (BESS)
Capacity: 71.4 MW (expandable to 80 MW)
Program: Puerto Rico Accelerated Storage Addition Program (ASAP)
Contract Type: 20-year Standard Offer Agreement with PREPA
Expected Commercial Operation Date: Q3 2026
Revenue Flow Model: Fixed and performance-based payments for capacity and grid services
Project’s Significance: Support Puerto Rico’s grid resilience and integration of renewables
Polaris Energy’s 71.4 MW Renewable BESS Project in Puerto Rico
The 71.4 MW Polaris Energy BESS project forms part of the Accelerated Storage Addition Program (ASAP) in Puerto Rico, whose major undertaking is to deploy utility-scale battery storage alongside existing generation sites. Polaris Power US will oversee installation and operations, while Punta Lima Wind Farm – another Polaris Energy subsidiary, will serve as the Punta Lima site’s BESS generation owner.
Once operational, the BESS will deliver 71.4 MW of capacity. This is from 2, 35.7 MW installations, with the potential to expand to 80 MW. The battery system will provide both fixed and performance-based grid support payments under a 20-year agreement with PREPA. Commercial operations at the Punta Lima BESS site are expected to start in Q3 2026.
Key Quotes
CEO, Marc Murnaghan, described the project as a “significant milestone” in advancing Polaris’s storage strategy while leveraging existing infrastructure. This also goes on to underscore the venture’s importance to investors.
For U.S. investors and developers, the project shows the growing opportunity in Caribbean grid modernization. This is especially so as more storage systems are increasingly being paired with renewable assets to stabilize supply and improve resilience against energy fluctuations.
Also read: The 680 MW Nova Power Bank in California Gears Up Completion on Final Phase
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