Green Mountain Power Expanded Battery Program

The Vermont utility provider increased its virtual battery storage program to 5,600 participating customers.

Updated on Oct. 1, 2026 in Utilities

Isometric editorial illustration showing a residential battery unit on wood siding against stylized mountain silhouettes, representing energy storage. — Green Mountain Power has expanded its virtual battery storage initiative to 5,600 Vermont customers to improve grid stability and provide residential backup power. AI Illustration. Upload story photo >

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Green Mountain Power has expanded its virtual battery storage initiative to include 5,600 customers across Vermont. The program allows users to access backup power during outages while helping balance the grid during periods of peak demand.

Why it matters

The program provides essential backup power to Vermont residents during severe weather events while improving overall grid stability. By aggregating stored energy, the utility can reduce reliance on the grid during high-demand periods.

The program has grown to 5,600 active customers, an increase from 5,000 recorded in July. Customers can participate through a $55 monthly fee or by opting for an outright battery purchase priced at $5,500.

The players

Green Mountain Power

This Vermont-based utility company provides electricity to the majority of the state's population.

The details

Participating batteries store energy from the grid to ensure residents have backup power during outages. This stored electricity is also released back into the grid during peak usage times to maintain stable energy delivery.

In July 2026, the program served 5,000 customers.
The customer count reached 5,600 as of September 30, 2026.

Market Landscape

This move reflects a growing industry shift toward virtual power plants that integrate customer-owned hardware into utility grid management. By leveraging distributed storage, the company positions itself to better handle the intermittent load demands common in modern energy markets.

Residents can access backup power options for a $55 monthly fee or a one-time $5,500 investment. This gives households a pragmatic way to mitigate the impact of frequent weather-related power outages in Vermont.

The takeaway

Virtual battery programs demonstrate how household assets can serve as critical infrastructure during emergencies. Implementing these systems offers residents a reliable safeguard against grid instability during extreme weather.