Energy Storage System (ESS) Program Opportunity Notice (PON)

Energy Storage System (ESS) Program Opportunity Notice (PON) is sponsored by Efficiency Maine. This program offers performance-based incentives for the deployment of energy storage systems during summer peak demand conditions. Incentives are paid annually for 5 years based on the project's performance.

Energy Storage System Projects - Efficiency Maine Biomass Boilers and Furnaces Geothermal Heat Pump Rebates Income-Based Eligibility Verification Residential Forms and Brochures Best Heat Pump Water Heater Deals Compare Your Home’s Overall Energy Efficiency Compare Home Heating Costs Compare Water Heating Costs Electricity Monitor Loaners Lighting Savings Calculator Heating, Ventilation, and Air Conditioning (HVAC) Multifamily Weatherization Heating, Ventilation, and Air Conditioning (HVAC) Multifamily Weatherization Architecture and Engineering (A&E) Firms Become A Qualified Partner Commercial Heating Calculator Commercial and Industrial Prescriptive Incentives Commercial and Industrial Custom Commercial Property Assessed Clean Energy (C-PACE) Small Business Energy Loans Business Customer Consultations Commercial Property Assessed Clean Energy (C-PACE) Long-Term Care Facility Loans Mobile Home Initiative Loans Small Business Energy Loans Residential Forms and Brochures Resources for Municipalities Efficiency Maine’s Energy Storage System (ESS) Program Opportunity Notice (PON) offers performance based incentives for the deployment of energy storage systems during summer peak demand conditions.

All demand metered customers (commercial, nonprofits, institutions and government) are eligible to participate. Eligible projects must be interconnected behind the facility utility meter and must be located in Maine with a Maine electric utility account. Awarded incentives will be based on the amount of facility electric load (kW) that the proposed system can reduce during summer peak demand hours.

Additionally, awarded systems must: Be approved by the Trust prior to installation. Maintain a minimum 80% round-trip efficiency. Be able to collect and transmit 15-minute interval data.

Carry a 10-year manufacturer warranty. Be UL-listed or certified by another nationally recognized testing lab. Systems configured for grid export.

Participants without the required interval metering and data transmission capability. Facilities not located in Maine or served by a Maine electric utility. Residential and small business customers.

Incentives awarded through this PON will be paid each fall for 5 years following an annual evaluation of the project’s performance. Additionally, incentives will be subject to the following limitations: $200 per kW of validated reduction in grid supplied power. Incentives will be on average load reduction achieved for fifteen (15) dispatches during summer peak demand conditions.

Incentive awards will be at least $4,000 and not more than $600,000 per year, per project, for 5 years. All projects awarded will require a formal contract with Efficiency Maine. Review a one page summary of the program.

Review the Program Opportunity Notice (application guidelines, award criteria, and limitations). Call 1-866-376-2463 or email custom@efficiencymaine. com for more information.