Design of a renewable energy system with battery and power-to-methanol unit

• Published in: The Korean journal of chemical engineering Vol. 36; no. 1; pp. 12 - 20
• Main Authors: Andika, Riezqa, Kim, Young, Yun, Choa Mun, Yoon, Seok Ho, Lee, Moonyong
• Format: Journal Article
• Language: English
• Published: New York Springer US 2019; Springer Nature B.V; 한국화학공학회
• Subjects: Batteries; Biotechnology; Catalysis; Chemistry; Chemistry and Materials Science; Electricity; Electricity consumption; Energy; Energy conservation; Energy management; Energy storage; Industrial Chemistry/Chemical Engineering; Materials Science; Methanol; Nonlinear programming; Nonlinear systems; Optimization; Process Safety; Process Systems Engineering; Renewable energy; Renewable resources; Storage units; Supply & demand; 화학공학; Nonlinear Programming; Power to Methanol; Electricity Supply and Demand; Renewable Energy; Battery Energy Storage
• ISSN: 0256-1115; 1975-7220
• DOI: 10.1007/s11814-018-0172-z

An energy storage system consisting of a battery and a power-to-methanol (PtM) unit was investigated to develop an energy storage system for renewable energy systems. A nonlinear programming model was established to optimize the energy storage system. The optimal installation capacities of the battery and power-to-methanol units were determined to minimize the cost of the energy system. The cost from a renewable energy system was assessed for four configurations, with or without energy storage units, of the battery and the power-to-methanol unit. The proposed model was applied to the modified electricity supply and demand based on published data. The results show that value-adding units, such as PtM, need be included to build a stable renewable energy system. This work will significantly contribute to the advancement of electricity supply and demand management and to the establishment of a nationwide policy for renewable energy storage.