“Behind the meter” refers to any energy system, like solar panels or a battery, that sits on your side of the electric utility meter. Because the energy it produces or stores never passes through that meter, it doesn’t register as electricity purchased from the grid. The term draws a simple line: everything between the utility grid and your meter is “front of the meter,” and everything between the meter and your home or business is “behind” it.
The Meter as a Dividing Line
Your utility meter is the device that tracks how much electricity you pull from the grid. A traditional power plant generates electricity that travels through transmission lines, into the local distribution system, and through your meter before reaching your outlets. That power plant is a “front of the meter” resource because its energy has to cross the meter to get to you.
A behind-the-meter (BTM) system works differently. Solar panels on your roof, a battery in your garage, or a backup generator on a commercial property all connect to the building’s internal wiring on the customer side of the meter. When those systems produce or discharge energy, it flows directly to your lights, appliances, or equipment without the meter ever counting it. That’s the core distinction: BTM energy bypasses the meter entirely.
Common Behind-the-Meter Systems
The most familiar example is rooftop solar. When sunlight hits your panels, the electricity generated feeds your home first. Only when you produce more than you need does the surplus flow back through the meter and onto the grid, typically earning you a credit on your bill through net metering programs.
Battery storage is the other major BTM technology. A home battery like a Tesla Powerwall or a larger commercial unit stores electricity, either from your solar panels or from the grid during off-peak hours when rates are low, and discharges it when you need it most. Combined with solar, a battery lets you use self-generated power even after the sun goes down.
Other BTM systems include small wind turbines, combined heat and power units in commercial buildings, and backup generators. What they all share is that physical location on the customer’s side of the meter and direct connection to the building’s electrical system.
How BTM Systems Save You Money
The financial logic is straightforward: every unit of electricity you generate and use yourself is a unit you don’t buy from the utility. Since you avoid paying the full retail rate (which includes generation costs, transmission fees, distribution charges, and taxes), BTM energy is often cheaper than grid power, especially in areas with high electricity prices.
For businesses, the savings can go further through a strategy called peak shaving. Many commercial electricity rates include “demand charges” based on the highest amount of power a facility draws during a billing period. A BTM battery can discharge during those spikes, reducing the peak demand the meter records and lowering the demand charge. This is one of the fastest ways for a commercial battery to pay for itself.
Time-of-use rate plans add another layer. If your utility charges more for electricity during afternoon and evening hours, a battery can store cheap overnight power and discharge it during expensive peak windows. You’re still using some grid electricity, but you’re shifting when you buy it to minimize cost.
Backup Power and Islanding
One of the most practical benefits of BTM systems is resilience during power outages. A solar-plus-battery setup can disconnect from the grid and continue powering your home or business independently. This capability is called “islanding,” and it requires specific hardware, typically a microgrid interconnect device or grid isolation switch, that safely separates your electrical system from the utility network.
That separation matters for safety. During an outage, utility crews need to know that no electricity is flowing back onto downed power lines. IEEE standards require that BTM systems with islanding capability properly isolate from the grid before operating independently. When the grid comes back online, the system detects stable utility power and reconnects automatically. In practice, modern home batteries handle this transition in milliseconds, so you may not even notice the lights flicker.
How BTM Resources Interact With the Grid
Behind-the-meter systems don’t just benefit individual building owners. When enough of them operate in a coordinated way, they can help stabilize the broader electrical grid. Demand response programs are the clearest example: utilities or grid operators pay customers to reduce their electricity consumption during periods of peak demand, helping avoid overloads and expensive infrastructure upgrades.
A BTM battery makes participating in demand response much easier. Instead of shutting down equipment or turning off air conditioning, you can simply draw from your battery during the event. You fulfill your commitment to reduce grid consumption without changing your daily operations, and you receive payments for doing so.
A federal regulation known as FERC Order 2222 has opened a larger door. It requires regional grid operators to allow small distributed energy resources, including BTM solar and batteries, to participate in wholesale electricity markets. The catch is that individual home systems are too small to participate directly. Instead, a company called an aggregator bundles many small systems together into a virtual resource. These aggregations can be as small as 100 kilowatts combined and can earn the same compensation as traditional power plants for providing energy or grid services. For homeowners and businesses, this creates a potential new revenue stream from equipment that’s already installed on their property.
Behind the Meter vs. Front of the Meter
The differences between BTM and front-of-the-meter systems go beyond physical location. Front-of-the-meter resources are typically large-scale: utility solar farms, wind farms, natural gas plants, and grid-scale battery installations measured in megawatts. They’re usually owned by utilities or independent power producers, interconnected directly with transmission or distribution infrastructure, and sell electricity into wholesale markets.
BTM systems are smaller, measured in kilowatts for homes and sometimes low megawatts for commercial or industrial facilities. They’re usually owned by the property owner or financed through a lease or power purchase agreement. Their primary purpose is serving the building they’re attached to, with grid interaction as a secondary function. The ownership structure, the scale, the permitting process, and the way the economics work are all fundamentally different, even when the underlying technology (a solar panel, a lithium-ion battery) is identical.
Understanding which side of the meter a system sits on clarifies almost everything about how it’s regulated, who benefits from it, and how the energy it produces gets valued. For homeowners exploring solar or batteries, “behind the meter” simply means the system is yours, on your property, reducing what you owe the utility every month.