The proposed plant would be significantly smaller than the old power station and would be built on a small section of land (approximately half a hectare) where the old fuel oil tanks used to be.
The plant’s main engine house would resemble a warehouse structure of no more than 14 metres in height and would contain up to five small gas engines. The chimneys will be 30 metres tall, which is less than half the height of the old exhaust stack at Roosecote which stood at 65 metres high. The graphics show the maximum possible dimensions of our proposals.
Unlike the old power station, which used gas turbines, we’re proposing to use technology similar to a car engine to generate power. Reciprocating engines burn fuel, in this case gas, with air to produce hot gases that are used to drive a piston up and down. In a car the power generated by the piston is used to drive the wheels. However in a power plant like this, the motion of the pistons will be used to drive the generator, which produces the electricity.
The plant would be operated as a highly flexible ‘peaking plant’ meaning that the engines can reach full load from a cold standstill within five minutes. To put this into context, the old Roosecote power station would have taken several hours.
The plant would typically run for only a few hours on weekdays to meet periods of high demand or to provide back-up power when it’s needed. Once built the site would be constantly monitored and operated remotely, only needing occasional maintenance visits and not mean an increase in traffic in the local area.