State of the Art Hybrid Solutions for Energy Storage and Grid Firming
(Room Rheinsaal 4)
28 Jun 17
4:00 PM
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5:30 PM
Tracks:
Track E - Gas Fired Generation
The impact of COP21 and growing renewable standards are driving new behaviors and technologies such as two-way power flows, microgrids, digital analytics, and new transmission and distribution models. Modern power systems must adapt to large fluctuations in both supply and demand to maintain grid stability. One solution recently developed by GE and its partners utilizes a hybrid electric gas turbine (Hybrid EGT) to address these challenges. With the increasing proportion of intermittent resources on the grid, battery storage holds significant promise in coming years. Like renewable technologies before it, manufacturing scale and technical advances will drive costs lower. Bulk storage will provide backup power, peak shaving, and ancillary services. Transmission and distribution investments may be deferred as batteries provide congestion relief during times of peak demand. The GE Hybrid EGT is the world’s first gas turbine and battery storage hybrid, coupling a 10-megawatt battery with a 50-megawatt (MW) GE LM6000 Gas Turbine, operated by an integrated digital turbine control system. Key benefits include “spinning reserve” without firing the gas turbine utilizing near instantaneous battery power through inverters, enhanced primary frequency response and voltage support, reduced greenhouse gas emissions, and smooth transient response with less turbine thermal stress, thereby lowering maintenance costs. This paper reviews advances in storage technology and the state of the art technology that integrates thermal and battery power to mitigate the challenges of variable generation.