NAALEHU, Hawaii Two miles or so from this tiny town in the southernmost corner of the United States, across ranches where cattle herds graze beneath the distant Mauna Loa volcano, the giant turbines of a new wind farm cut through the air.
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Algae samples at a company that is exploring the use of algae to make biofuel. More Photos
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Every island has at least one energy accent. Here, solar panels on the Big Island of Hawaii. More Photos >
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Viewers see lava hit the ocean miles from the power plant. More Photos >
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A power plant extracts heat from volcanic rock to generate electricity. More Photos >
Sixty miles to the northeast, near a spot where golden-red lava streams meet the sea in clouds of steam, a small power plant extracts heat from the volcanic rock beneath it to generate electricity.
These projects are just a slice of the energy experiment unfolding across Hawaiis six main islands. With the most diverse array of alternative energy potential of any state in the nation, Hawaii has set out to become a living laboratory for the rest of the country, hoping it can slash its dependence on fossil fuels while keeping the lights on.
Every island has at least one energy accent: waves in Maui, wind in Lanai and Molokai, solar panels in Oahu and eventually, if all goes well, biomass energy from crops grown on Kauai. Here on the Big Island of Hawaii, seawater is also being converted to electricity.
Still, the state faces enormous challenges in delivering the power to the people who need it. While the urban sprawl around Honolulu consumes the bulk of the energy, most potential renewable sources