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Solar Water Heaters Now Mandatory In Hawaii

Solar Water Heater On Rooftop

Hawaii has become the first state to require solar water heaters in new homes. The bill was signed into law by Governor Linda Lingle, a Republican. It requires the energy-saving systems in homes starting in 2010. It prohibits issuing building permits for single-family homes that do not have solar water heaters. Hawaii relies on imported […]

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90% Of Israeli Homes Have Solar Water Heaters

Solar Hot Water Heaters In Israel

  I recently noted that Hawaii has enacted a law that requires all new homes to install solar water heaters. Eventually, Hawaii may have as many water heaters as Israel, where 90% of homes have solar water heaters installed. When viewed from above, the Jerusalem often glitters with the shine of the thousands of solar […]

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Chainless Bikes

1910PierceChainlessCl1

Besides the wheel the invention of the chain is probably what made the modern bicycle possible but ironically it’s also the bike’s biggest downside. The chain usually needs a lot of maintenance and care to keep it functioning properly and of course there’s always the risk of pant legs or loose shoelaces getting caught. If […]

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Plug-In Hybrid Conversion Packs: 2008

A lithium-ion battery manufacturer, A123Systems, will begin marketing a kit in 2008 that will convert a regular hybrid car into a plug-in hybrid electric vehicle, as known as a PHEV. Currently priced at $10,000 (with a $3,500 tax credit), these modules are still expensive for the average car owner. For example, a commuter driving 11,000 […]

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