b.

If the heat of combustion of the wood is 9.2 MJ kg^-1 and the power station will generate electricity with an efficiency of 29% when burning wood, calculate how much electricity can be produced (in units of MW) if the station burns 25 tonnes of wood per hour. Give your answer to 2 significant figures.

c.

Calculate how much wood would need to be burned per hour to maintain an electrical output of 600 MW from the power station. Give your answer to 2 significant figures.

d. The wood is to be stored under cover and the plant operators wish to keep one week's supply of wood on site. If the bulk density of the wood is 280 kg m^-3, calculate the minimum volume of storage that will be required for the 600 MW plant.