We asked the Department whether it had an estimate of the rate of overpayment within the schemes. Both the Former Permanent Secretary and the Department told us that they did not have an overpayment figure, but that overall, the Department was aiming to pay accurately.43 We also questioned the Department on its plans to monitor 38 Qq 153, 175 39 Q 172; C&AG’s Report, para 2.9 40 Qq 172–175; C&AG’s Report, paras 2.9, 3.2 41 Q 176 ; C&AG’s Report, para 3.5 42 Qq 153, 175–176 43 Q 177 16 Energy bills support benefits, impacts and the effectiveness of the schemes, including rates of fraud and error. The Department told us that it had an evaluation plan in place, but that full evaluation of the effectiveness of the schemes would only be possible when the schemes have concluded.44 44 Qq 145–146 Energy bills support 17 2 Future risks Risks of reducing support for businesses