Domestic waste releases 9 GJ/tonne when burned in electricity from waste plant having a conversion efficiency of 25 per cent. A community of 15 000 households produces 12 000 tonnes of combustible waste annually.
(a) What is the annual electricity output? (Note 1 kW h = 3600 kJ)
(b) For plant load factor of 80 per cent, what generator rating is appropriate?
(c) What fraction of the total community demand can be supplied if the annual demand per household is 4000 kW h?