Abstract: Various embodiments include systems and methods of operating a hybrid energy system that includes a gas-turbine generator configured to provide a full-load power output and a storage device configured to store energy. The hybrid energy system includes a generator step-up transformer, wherein the gas-turbine generator and the storage device are electrically co-located on a low side of the generator step-up transformer. Methods of operation include controlling power output from the storage device and/or the gas-turbine generator during scheduled and unscheduled grid power demands to achieve economic and environmental performance advantages.

Abstract: A hybrid energy system includes a (GTG) configured to provide a full-load power output and a storage device configured to store energy. The hybrid energy system includes a generator step-up transformer, wherein the GTG and the storage device are electrically co-located on a low side of the generator step-up transformer.

Abstract: A system and method include a nozzle configured to inject water into a gas turbine at a specified water flow rate. An effluent stream of the gas turbine includes a gas turbine effluent stream including a first emission level. A secondary emissions control apparatus is in fluid communication with the gas turbine effluent stream. An output stream of the secondary emissions control apparatus can include a second emissions level below a specified emissions output threshold. The method and system can reduce the amount of water over time that is introduced into the gas turbine based on the threshold emissions reduction capability of the secondary emissions control apparatus.