Abstract: A data centre having a primary power source and a backup power source, wherein the primary power source comprises a gas pressure reduction station driving at least one generator, and the secondary power source comprises a large scale electricity distribution network.

Abstract: A power generation system comprising: at least one solar collector arranged to heat deliver energy to a fluid so as to boil the fluid to form a vapour at least one prime mover arranged to receive the vapour and to be driven thereby so as to drive a load, and a condenser for returning the vapour to a liquid phase, and a compressor for compressing/pressurising the fluid, the power generation system further including a gas pressure reduction station for reducing the pressure of natural gas, and wherein the cold generated at the gas pressure reduction station is supplied to the condenser.