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News: Monday, February 8, 2010
HNU Energy and International Battery Team for Solar and Energy Storage Demonstration Project in Maui
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International Battery, a U.S. manufacturer and developer of large-format lithium-ion rechargeable batteries, today announced they have recently teamed with HNU Energy to participate in a solar power generation and energy storage project in Maui, Hawaii. The project, recently put into operation, will assess the effectiveness of storing solar energy using new, more-efficient battery technology.
The renewable energy system is comprised of sixty 224-watt photovoltaic panels, a bi-directional 3-phase inverter system, and a charge controller network provided by system integrator, HNU Energy located in Maui, Hawaii. International Battery supplied a 48V, 16.4kWh lithium-ion based energy storage system -- complete with battery management and controls -- to store the energy generated from the solar array.
The energy storage system includes four battery modules totaling 32 160Ah lithium iron phosphate (LFP) cells and a battery management system (BMS) that is integrated into a standard Electronics Industry Alliance (EIA) style 19" portable rack mount chassis and enclosure. For easy management and monitoring of the batteries, International Battery's BMS monitors and controls the entire battery system. Key to overall system performance is knowing the health and charge state of the individual battery cells as well as understanding the temperature, depth of discharge and charging status.
Maui is at the forefront of renewable energy in Hawaii, due largely to the efforts of the county's mayor, Charmaine Tavares. This installation is in line with her vision of moving Maui County toward renewable energy sources to spur sustainable economic growth. In a recent editorial she said, "For our future viability, building a new green and sustainable economy is one of the most important challenges and possibilities facing us."
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