Efficiency Maine Battery Incentive Program
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Program summary
Maximize Savings with Tigo EI + Battery Storage in Maine
Homeowners and businesses in Maine can now reduce upfront battery costs and unlock long-term energy savings through the Efficiency Maine Small Battery Incentive Program.
Pair your solar system with Tigo EI Inverter + Battery, and take advantage of state-backed incentives designed to accelerate clean energy adoption—while improving resilience and energy independence.
Why This Program Matters
Energy costs are rising. Grid reliability is increasingly uncertain. And customers are demanding more control over their energy.
This program helps solve all three.
By installing a qualified battery system, customers can:
- Lower upfront installation costs with state incentives
- Store excess solar energy for use when it matters most
- Increase resilience during outages
- Reduce reliance on the grid
And for installers, it creates a powerful new reason to close battery-attached solar deals.
Key Program Benefits
Upfront Incentives
Efficiency Maine provides cash incentives to reduce the cost of installing battery storage systems.
Energy Independence
Store solar energy and use it during peak rates, outages, or whenever it’s most valuable.
Grid Support
Help stabilize the local grid by reducing demand during peak periods.
Increased Project Value
Adding storage increases system value—and differentiation—for installers.
Who Qualifies?
Eligibility requirements may vary slightly, but generally include:
- Residential or small commercial customers in Maine
- Installation of an eligible battery storage system
- System must meet Efficiency Maine program requirements
- Installed by a qualified contractor
- Interconnection approval (if required by utility)
Why Choose Tigo EI?
Tigo EI delivers a complete, flexible energy solution designed for real-world installs.
All-in-One System
Inverter, battery, and energy management—fully integrated.
Open Solar Ecosystem
Works seamlessly with a wide range of PV modules and system designs.
Installer-Friendly
Fast commissioning through the Tigo EI App and Portal.
Intelligent Energy Control
Optimize battery usage for savings, backup, and grid participation.
Built for the Future
Battery programs are expanding—and Maine is just getting started.
By installing Tigo EI systems today, you position your customers for:
- Future grid programs
- Demand response participation
- Greater long-term energy savings
Steps to enroll
Enrollment is easy and done entirely through the Tigo EI App or EI Portal
- Confirm the Tigo system is installed, commissioned, connected to the internet, and approved for interconnection.
- Open the Tigo EI App or EI Portal
- Click Battery Incentive Programs from the systems dashboard section (under Today and Lifetime Metrics)
- Select the available program, review the details, complete the enrollment form, and submit it for approval.
If needed, use the detailed Battery Incentive Program Enrollment Guide to confirm eligibility and steps with screenshots. Program availability, equipment eligibility, and final approval are determined by the utility or program administrator.