July 14, 201510 yr I reply to some of the coments about this topic. It can be cost effective in 7 to 10 years depending on how much power is used. There is an Australian product with world first technology that will be site tested in a large house in Chon Buri soon if successful as expected it wil be introduced into Thailand. The developer has over 30 years experience in the industry. The system stores excess electricity for later use, like night time, intermittent showers, cloudy days etc, not back into the grid it can be if a customer wants to. On early calculation useage would need to be over 3000 THB a month. It will be suitable for large houses, 24/7 commercial / industrial operations, after hours irrigation, carpark & security lighting, where back up power neccessay during outages on the grid, remote communities etc. Units range from 5KVA right through to modules of 500KVA for large consumers. The system includes all the latest technology in monitoring all functions & the latest communications systems including remote monitoring. it is a quality product with long warranty. Any enquiries PM me. yes that is the problem it would be effective in 7-10 years but the first repairs will be after 5-6 years. I saw it in Koh Lipe: The batteries didn't last long. the solar panels got cracks. And I doubt the 7-10 years.....
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