Capabilities and Experience

• Technologies Patented and Commercialized by ESPC
  • Compressed Air Energy Storage
    • CAES
    • SCAES
  • CAES Utilizing Air Injection
  • CHAT (Cascaded Humidified Advanced Turbine)
    • Large
    • Small
    • Coal-Fired
  • Hybrid Concept for DG
• Air Injection for Power Augmentation of CT/CC Plants
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• Patents
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COMPRESSED AIR ENERGY STORAGE (CAES)

CAES Cycle Conceptual Diagram. US Patents 4,765,142, 4,870,816, 4,872,307, 4,885,912, and 4,936,098 by Dr. Nakhamkin

Compressed Air Energy Storage (CAES) Features:

·        Capacity of Commercially Offered CAES Plants Range 8.6 to 300 MW for the 60 Hz Market, Based Around the Following Principal Equipment:

300‑MW single-shaft turboexpander train is being offered by Alstom, with the recuperator preheating the HP expander inlet air from the storage and combustors located upstream of the Low Pressure turbine. The motor driven compressors are independent of the turboexpander.

110‑135 MW plant based on Dresser‑Rand hot-gas expander EA‑418. The turbomachinery is offered with the single shaft applications (compressors, motor/generator and expanders are on the same shaft- similar to the AEC project) and with separate turboexpander and compressor shafts.

15.9 and 20.5‑MW plants based on Allison gas turbine 501 KM7

8.6‑MW Plant Based on Allison Gas Turbine 501 KM3

·        Fuel related heat rate (fuel consumption during the power generation) is approximately 4000 Btu/kWh; energy ratio (electricity consumption for the storage recharging per kWh of the generated power) depends on the storage type and its parameters.

·        Other Rotating Cycle Equipment are Standard Frame Type Components

·        Storage and Compressor Sizing are Site Specific and Based on Client Requirements and Optimum Economics