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Hawaii: Mixed Results six Month after the Solar Mandate came into Effect

Submitted by Baerbel Epp on July 23, 2010

 hawaii landscape” Every fifth building permit for new single-family houses in Hawaii included a tankless gas water heater in the first half of 2010. This is a rather large share, if considered that Hawaii has “mandated” solar thermal water heaters since the beginning of 2010.
Photo: www.kleinezeitung.at

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