Space Station Solar Power Battery Replacement

July 15, 2003 []NASA has awarded Boeing a contract valued at US$145 million to procure replacement battery units for the International Space Station (ISS). The advanced nickel hydrogen batteries are used to store electrical energy primarily for use during the 16 solar eclipses or night time periods that the space station encounters during its daily orbits around the Earth. When completely assembled, primary power generation for the ISS will be accomplished with four photovoltaic Modules labeled P6 (currently on orbit), P4, S4, and S6. Each module holds 12 battery units and provides 22 kW of power — enough for 20 small homes.
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