What Is a Virtual Power Plant?

A virtual power plant, or VPP, doesn't generate power itself. It's a software layer that aggregates a fleet of distributed assets, batteries, EV chargers, solar, sometimes backup generators, and operates them as one dispatchable resource that a grid operator or energy market can call on.

What "Virtual" Actually Means Here

A conventional power plant is one large, physical, dispatchable asset. A VPP achieves the same dispatchability by aggregating many small ones. No single site needs to be large enough to matter to the grid on its own. What matters is that the software can see all of them together, forecast their available capacity, and respond to a grid signal in seconds across the whole pool.

How the Revenue Actually Works

VPPs typically stack several income sources on the same hardware:

• Grid balancing services: short-notice frequency response and reserve capacity, paid for being available, whether or not it's called on.
• Capacity market payments: a standing fee for guaranteeing capacity is there when the system needs it, typically at winter peak.
• Wholesale price arbitrage: charging when power is cheap and discharging or reducing demand when it's expensive.
• Demand turn-down: curtailing a scheduled, non-critical portion of load during a grid stress event, rather than discharging a battery.

None of these require new hardware beyond what a site needs for its own operations. They're additional uses of a battery, an inverter, and a connection that's already there.

Why Fleet Charging Depots Are Ideal Candidates

A depot already has most of what a VPP operator wants: significant power capacity behind one meter, a battery on-site for load management, and predictable idle windows when that capacity isn't needed for charging. The same Power Hub that smooths a depot's own charging spikes can, outside the charging window, be offered into grid services markets, without adding a single piece of new hardware.

What Coordinates This in Practice

The aggregation and dispatch logic sits in the energy management software, forecasting site load, reading live grid signals, and deciding site by site whether to charge, hold, or discharge. That's the same layer Neutron's Grid EMS and energy trading platform already runs for microgrid and BESS sites, extended to bid available capacity into balancing and wholesale markets automatically.

Is a virtual power plant the same as a microgrid?

No. A microgrid is a single site that can island from the grid. A VPP is a software layer that aggregates many distributed sites, batteries and chargers, whether or not any of them can island, and dispatches them together to provide grid services.

Can an EV charging depot really earn revenue from a VPP without disrupting fleet charging?

Yes, when the battery buffer is sized correctly. Grid service participation draws on the on-site battery or curtails a small, scheduled margin of charging capacity, not the vehicles that need to leave on time, so fleet operations are set as the fixed priority and the VPP optimises around them.