Could be something like spinning up the power plant to meet demand, storing the co2 and treating it when there is excess renewable energy available. Sure you co

Could be something like spinning up the power plant to meet demand, storing the co2 and treating it when there is excess renewable energy available. Sure you could build more renewables instead, but if it can be retrofitted onto existing power plants for less cost than replacing the plant with renewables, it could make financial sense.