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Aug 9, 2017, 2:41 pm130 ptsGreentech Media
This is not a test. Utility Arizona Public Service has contracted for a new grid-scale battery -- not to demonstrate the technology, but because it’s a lot cheaper than the conventional alternative. The company will purchase two 1 megawatt/ 4 megawatt-hour storage systems from AES for the small town of Punkin…
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