The proposed project is set to provide up to 3.5 megawatts of renewable power to data centers in Wise County.
State regulators said Walmart’s bid to buy its own renewable power would have hurt remaining utility ratepayers.
“Nobody got everything they wanted, but it advanced the cause of rooftop solar and net metering,” an advocate said.
The legislation lifts a net metering cap for cooperatives and allows their customers to install larger solar projects.
Advocates are already pressing the online giant to help fund bicycle and pedestrian projects in Arlington County.