Typically, these schemes simply provide a revenue premium for electricity that is renewably generated. For example, if ‘normal’ electricity earns €40 per MWh in a certain spot market, a wind farm might earn an additional €2 for the fact that its product is green. But that does nothing to help with volatility. If the spot price drops from €40 to €20, the wind farm’s per-MWh revenue drops from €42 to €22.
