Toyota’s Powerwall alternative is designed to work with solar, plug-in hybrids

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Toyota O-Uchi Kyuden energy storage systemToyota on Thursday unveiled a home battery energy storage system similar in concept to Tesla’s Powerwall. The automaker has started pre-orders for its O-Uchi Kyuden System in Japan, with sales expected to begin in August through home builders and general construction companies, a Toyota press release said. The system has a storage capacity of 8.7…