The breakout moment for VPPs

Virtual power plants, or VPPs, are getting new attention as a way to manage the power grid. A VPP works by linking up home batteries, thermostats, water heaters, and other devices across many houses so a utility can draw on them together, almost like a small power plant, when demand for electricity spikes. Rising power use, aging grid equipment, extreme weather, and higher electricity prices are pushing utilities and state regulators to look at this approach more seriously as a way to add capacity quickly, without building new power plants.

Several states are now treating VPPs as a tool for keeping electricity bills down and are counting on them to help meet growing power demand over the next few years. Even so, the technology is still bumping up against old rules. Utilities and regulators mostly treat VPPs as a side experiment rather than a core part of the grid, and the market rules that determine how these resources get paid and used have not caught up.

For a homeowner, this points to a trend rather than an immediate program to sign up for: if you already have things like a smart thermostat, a home battery, or an electric water heater, there is a chance your utility could eventually pay you to let it use those devices to help balance the grid during high-demand periods. Whether and how that works depends on where you live, since state policies and utility programs vary widely.