The change in the estimated lifetime value of the proposed contract is £200,000 which is 2% of the estimated lifetime value of the existing contract when the existing contract was entered into.
Yr effaith net yw y caiff 32,000 tunnell o allyriadau tymor agos eu gwrthbwyso gan 4,000 tunnell o arbedion dros oes y cynllun, gan greu cynnydd net o 28,000 tunnell o CO 2.