500-kW lead-acid battery for peak-shaving energy storage testing and evaluation
This report details the design, fabrication, and installation of a 500-kW, 500-kWh battery for evaluation at the Battery Energy Storage Test (BEST) facility in Hillsborough, New Jersey. The battery was manufactured by GNB Batteries under contract to EPRI and will be used to demonstrate the viability of lead-acid batteries in peak-shaving and load-leveling applications. GNB adapted an off-the-shelf, 160X type of commercial motive power cell of a large enough capacity to meet the requirements necessary for load-leveling in this application. Modifications to the commercial cell design included a new jar, cover, and the inclusion of auxiliary electrolyte agitation and monitoring devices on each cell. GNB selected a series-parallel configuration for the one-hour-rate battery, comprising three strings connected in parallel, with each string having 18 modules connected in series. Each module has six cells connected in series. Each cell has a nominal capacity of 2080 Ah at the six-hour rate, when new, or 1120 Ah at the one-hour rate. Thus, each string with 108 cells in series has a nominal voltage of 216 V and a one-hour capacity of 1120 Ah. The 54 modules may also be connected in series.
- Research Organization:
- GNB Batteries, Inc., Langhorne, PA (USA). Industrial Battery Div.
- OSTI ID:
- 6289078
- Report Number(s):
- EPRI-EM-3707; ON: TI85920086
- Country of Publication:
- United States
- Language:
- English
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