Life Cycle Assessment and Economical Evaluation of Superconducting Magnetic Energy Storage Systems in a Power System

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  • 電力系統における超電導エネルギー貯蔵システムのライフサイクル分析および経済性評価
  • デンリョク ケイトウ ニ オケル チョウデンドウエネルギー チョゾウ システム

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Abstract

In recent years, the introduction of Superconducting Magnetic Energy Storage System (SMES) into a power system is drawing considerable research effort because of their high efficiency rate and large storage capacity characteristics.<br> In this paper, the introduction of SMES into a power system and its effects on energy and on environmental issues are addressed. The analysis results show that the introduction of SMES can considerably cut down CO2 emissions without increasing the production cost if it substitutes the operation of thermal plants during peak load period. However, to achieve this, nuclear plants are also needed for charging purposes. Thus, an algorithm to find the best generation mix, subject to CO2 emission constraints and nuclear plant introduction constraints, is proposed.<br> The inclusion of nuclear plant constraints increases the coal consumption, hence CO2 emissions. Nevertheless, in most of the analyzed cases, the introduction of SMES could attain important cost savings and environmental conservation.

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