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Can compressed air energy storage be combined with cogeneration?

Compressed air energy storage is a promising technology that can be aggregated within cogeneration systems in order to keep up with those challenges. Here, we present different systems found in the literature that integrate compressed air energy storage and cogeneration. The main parameters of performance are reviewed and analyzed.

What is compressed air energy storage (CAES)?

Among all energy storage systems, the compressed air energy storage (CAES) as mechanical energy storage has shown its unique eligibility in terms of clean storage medium, scalability, high lifetime, long discharge time, low self-discharge, high durability, and relatively low capital cost per unit of stored energy.

Why are energy storage systems a promising solution?

Energy storage systems are a promising solution because the generation period is decoupled from the consumption period . Those systems can store the excess of energy generated in off-peak demand periods for later use when the demand is high (a process called peak shaving or valley filling).

Can SOFC & GT combine a thermal energy storage system?

An integration of compressed air and thermochemical energy storage with SOFC and GT was proposed by Zhong et al. . An optimal RTE and COE of 89.76% and 126.48 $/MWh was reported for the hybrid system, respectively. Zhang et al. also achieved 17.07% overall efficiency improvement by coupling CAES to SOFC, GT, and ORC hybrid system.

How can a stochastic approach be used for self-scheduling energy systems?

Ghalelou et al. introduced a novel stochastic approach for self-scheduling the different systems, including thermal, wind, solar, and CAES unit in the day-ahead energy market to minimize the operation cost of CAES and thermal unit (TU) while considering the demand response program.

Does stochastic self-scheduling of thermal and renewable units reduce operation cost?

The results showed that the stochastic self-scheduling of thermal and renewable units in the presence of CAES and demand response decreased the operation cost by about 5.15% compared to that without CAES and demand response.