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  • Smart Energy Hawaii

Save Money, Save Energy, Save the ‘Āina! Now that's Smart!

Welcome to our new online home. We are Smart Energy Hawai‘i, a division of 21st Century Technologies. Why the name change? Well we realized just how different a company we are compared to other solar installers in Hawai‘i. Our mission is to help you be Smart when it comes to Energy for your Hawai‘i home. Smart Energy Hawai‘i is one of the Island's most experienced PV installers, but it doesn't end there. Let us help you find your path to energy independence! Learn More »

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What our customers say

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I got my first full month's electric bill. Last year it was around $150, this past month it was $46 and it's not even summer!"

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Solar Associations

  • Click for the BBB Business Review of this Solar Energy System Design & Installation in Honolulu HI
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The Hokulea Voyage

Hawaii’s Connection With the Stars

Utilizing the sun, our closest star, to help Hawaii’s people is nothing new. Thousands of years ago the ancient Polynesians were using the stars to guide them at night on their journeys across the vast Pacific Ocean searching for new islands to populate. In honor of Hawaii’s ancestors, Smart Energy Hawai‘i donates a portion of each customer’s purchase to the Hokulea Worldwide Voyage.

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