Efficiency Maine Battery Incentive Program

Participating utilities: 
Central Maine Power (CMP), Versant Power
Available States: 
Maine
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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

Get Started Today

Ready to offer battery incentives in Maine?

👉 Log in to the Tigo EI App or Portal to view available programs
👉 Start enrolling customers in minutes
👉 Deliver more value with every install

Steps to enroll

Getting started is straightforward with Tigo.

Step 1: Install & Commission

Install the Tigo EI Inverter and Battery system and complete commissioning.

Step 2: Check Program Availability

Log in to the Tigo EI App or EI Portal and navigate to Battery Incentive Programs to view available programs in Maine.

Step 3: Select the Program

Review the Efficiency Maine incentive details and confirm eligibility.

Step 4: Submit Enrollment

Complete the enrollment form directly in the platform with customer and system details.

Step 5: Approval & Incentives

Once approved, incentives are processed according to program guidelines.

What Happens After Enrollment?

After submission:

  • The application is reviewed by the program administrator
  • Approval timelines vary
  • Customers receive confirmation and next steps
  • Incentives are issued based on program rules

FAQs

Below are most frequently asked questions about this program.

Who is eligible for the Efficiency Maine battery incentive?

Incentive amounts vary based on system size and program guidelines, but they are designed to significantly reduce the upfront cost of battery installation. Exact savings will depend on the system configuration and current program terms.

How much can customers save with this program?

In many cases, yes—battery-only systems may qualify depending on program rules. However, pairing battery storage with solar often provides the greatest financial and energy benefits. Always review the latest program requirements before enrolling.

Can I install a battery without solar and still qualify?

In many cases, yes—battery-only systems may qualify depending on program rules. However, pairing battery storage with solar often provides the greatest financial and energy benefits. Always review the latest program requirements before enrolling.

How do I enroll in the program using Tigo?

Installers can enroll customers directly through the Tigo EI App or EI Portal. After commissioning the system, navigate to Battery Incentive Programs, select the Efficiency Maine program, and submit the required customer and system information for review.

How long does it take to receive the incentive?

After enrollment is submitted, the application is reviewed by the program administrator. Approval timelines vary, and incentive payments are issued according to Efficiency Maine’s processing schedule and program rules.

Still have questions?

Get in touch with a Tigo representative.