They built a solar home in the '70s before it was cool. Now, they're selling it for $1.3 million.
"It was unusual at the time to have such a system and it works pretty well," Paul Grogan told BI.
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Family unveils unique off-grid home built with unexpected materials: 'A testament to the great love ... that has gone into building this'
It features some breathtaking sustainable systems, including a green roof with drought-resistant vegetation. Family unveils ...