Optimum capacities of battery energy storage system for utility network and their economics
A battery energy storage system for load leveling must be capable of fulfilling the requirements of each plant site. Among the requirements that vary are the size of the storage capacity, the users' demand patterns, and both environmental and cost considerations. The size selection of the battery storage capacity is influenced by each local site, the load demand patterns of subtransmission and distribution substation, and the policies of a utility. The optimum size of the battery energy storage system for load leveling has been determined after the analysis of multihundred load demand curves and the system operating mode. This operating mode is assumed to be able to convert and transfer off-peak electric energy and to convert and retrieve the stored energy when peaking time. And also, this system ac-ac converting efficiency is assumed 70 percent. The siting of a battery energy storage system is desirable at industrial and commercial areas in Japan. Charge and discharge time for load leveling are suitable 8 hours respectively. The optimum size of a battery energy storage system is estimated 10 to 30 percent of a subtransmission and distribution substation transformer capacity. In the case of installing at the distribution substation, this capacity is the range of 2 to 5 MW. In addition, economics and credits of a dispersed battery energy storage system are estimated. Study results indicate that the transmission and distribution credits of a dispersed battery energy storage system is in the range of $700 to $1060 per KW of its installed capacity.
- Research Organization:
- Central Research Institute of Electric Power Industry, 11-1, Iwato Kita 2-Chome, Komae-shi, Tokyo
- OSTI ID:
- 5854680
- Report Number(s):
- CONF-840804-
- Journal Information:
- Proc., Intersoc. Energy Convers. Eng. Conf.; (United States), Journal Name: Proc., Intersoc. Energy Convers. Eng. Conf.; (United States) Vol. 2; ISSN PIECD
- Country of Publication:
- United States
- Language:
- English
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250901* -- Energy Storage-- Batteries-- Design & Development
ALTERNATING CURRENT
ASIA
CAPACITY
COST
COST BENEFIT ANALYSIS
CURRENTS
ELECTRIC BATTERIES
ELECTRIC CURRENTS
ELECTRIC UTILITIES
ELECTRICAL EQUIPMENT
ELECTROCHEMICAL CELLS
EQUIPMENT
JAPAN
LOAD MANAGEMENT
MANAGEMENT
OPERATION
PEAK LOAD
POWER TRANSMISSION
PUBLIC UTILITIES
SIZING
TRANSFORMERS