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COMPRESSED AIR ENERGY STORAGE (SCAES)

CAES FOR DISTRIBUTED POWER GENERATION

Conceptual Diagram for Small CAES Cycle, US Patent 4,872,307 by Dr. Nakhamkin

Small CAES Features:

    ·        Concept Based on Allison Combustion Turbines (Require Only Minor Adjustments to Fit Duty). Industrial Components Complete the Cycle

    ·        CAES Capacity Suitable for Distributed Power Generation, Ranging 8.3 to 15.9‑MW (20.5‑MW with Reheat Expander)

    ·        Fuel Related Efficiency is 53.4‑Percent (LHV) (83.1% with Recuperation)

    ·        Energy Ratio (Off-Peak Electric Power Consumption) is 0.96

    ·        For SCAES plant applications ESPC developed the novel sub-surface storage concept in the high-pressure piping systems, providing independence for availability of specific geologies. The storage costs are 25-35/kWh of the storage

    ·        Capital Cost, Including Storage is approximately $500-600/kW for the three-hour of the storage.

    ·        Ground-Level Air Storage Eases CAES Siting Constraints

    ·        Thirty (30) Seconds from Standby to Peak Generation

    ·        One (1) Second to Load if Operating at Minimum Load

    ·        Provides FERC-Defined Substation Support Services

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