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CUNY Energy Institute battery system could reduce buildings' electric bills
Date:5/8/2012

grid."

The batteries are designed for more than 5,000 10,000 charge cycles and a useful life exceeding ten years. The demonstration system is being expanded currently to 100 kWh, with another 200 kWh to be installed later this year. At that point, it will be capable of meeting more than 30 percent of Steinman Hall's peak-demand power needs, yielding savings of $6,000 or more per month.

Professor Banerjee sees initial applications for the batteries in industrial facilities and large, commercial properties. The nickel-cadmium (Ni-Cd) batteries that would be initially replaced are used in applications that range from backup power for server farmers to very large starter motors. Other large-scale Ni-Cd applications include grid support, like a system in Alaska that deploys a 45 MW Ni-Cd battery array.

The CUNY Energy Institute's zinc anode battery system can be produced for a cost in the $300 - $500 per kWh range, which for many applications has a three to five-year payback period. The cost is being rapidly reduced and is expected to reach $200 kWh with a year.

To commercialize the batteries, researchers plan to have a company operational by fall 2012 with the goal of breaking even within two years, Professor Banerjee said. The company will probably set up its pilot manufacturing facility in close proximity to City College, he added.


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Contact: Ellis Simon
esimon@ccny.cuny.edu
212-650-6460
City College of New York
Source:Eurekalert

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