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Sonnen Battery to put energy utilities “out of business”
Battery storage Electric Utility Sonnen Sonnen Battery sonnenbatterie SonnenflatChristoph Ostermann, the founder and CEO of Sonnen Battery, a reputable German battery storage developer is a lucky man—just when he was about to reveal his strategy for putting Australian utilities “out of business”, the energy utilities announced—unanimously, an almost 20 per cent increase in the cost of grid energy.