using the formula (.12 x 100,000)/3,413, the cost per therm of electricity works out to $3.52 — nearly four times the national average natural gas price of 90 cents per therm. Therefore, an electric heater with an output comparable to a ...
It can be seen from Table 1 that compared with direct electric energy storage, the compressed air energy storage system has the advantages of relatively low investment cost and can be applied on a large scale. Compared with electrochemical batteries, CAES is more environmentally friendly and safer...
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