_id Period_Start   Period_End   OCL_Rate_GBP_Per_MWh   Forecast_Operational_Costs_GBP_In_Millions   Forecast_Demand_TWh   Actual_Operational_Costs_GBP_In_Millions   Actual_OCL_Paid_GBP_In_Millions   Actual_Demand_TWh   Excess_Operational_Costs_GBP_In_Millions   Refund_Rate_GBP_Per_MWh   Effective_OCL_Rate_GBP_Per_MWh   colspacer
Period_Start Period_End OCL_Rate_GBP_Per_MWh Forecast_Operational_Costs_GBP_In_Millions Forecast_Demand_TWh Actual_Operational_Costs_GBP_In_Millions Actual_OCL_Paid_GBP_In_Millions Actual_Demand_TWh Excess_Operational_Costs_GBP_In_Millions Refund_Rate_GBP_Per_MWh Effective_OCL_Rate_GBP_Per_MWh