The phrase "cycle gas" refers to the process of using and reusing gas in a specific system or cycle. This means that the gas is continuously circulated and reused instead of being wasted or thrown away after a single use. Full definition
This can be met with open - cycle gas turbines, which can be rolled out with lead times of 18 - 30 months, at costs of ~ 60 cents / watt. (3000quads.com)
A new combined cycle gas plant, they figure, takes 5 years and 4 months to build from inception to powering up. (utilitydive.com)
It is not clear to what extent solar thermal with overnight heat storage can avoid the need for back up generation such as combined cycle gas. (johnquiggin.com)