(1) What is the total number of solar water heaters rolled out by her department as part of the Government’s commitment to the Green Economy Accord and the New Growth Path (NGP); (2) (a) what electricity savings have been achieved by the Government's adoption of demand management measures in the 2013-14 financial year and (b) please express these electricity savings as a (i) whole number and (ii) percentage of the total government electricity usage?