Unlike other grid systems, power plants interconnected with ERCOT get paid for energy they actually deliver, not solely for having energy capacity available. The grid’s market design dispatches the lowest cost resources, or the power plants with the least fuel costs, Vegas said. The proliferation of solar, storage and wind onto the grid has reduced the number of hours gas plants need to run. This over supply of renewables is where King sees a pause on renewable development being useful as the capacity of gas plants catches up. “When you build more gas plants, that’s not just benefiting the electric market and the consumers.