The roof, spanning 1,600–1,700 square feet, is optimized for both rainwater collection and energy generation, with a 10,000-watt PV array capturing sunlight from early morning to late afternoon.   Photo 1 of 14 in Kailua Hale by Hawaii Off Grid

Kailua Hale

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The roof, spanning 1,600–1,700 square feet, is optimized for both rainwater collection and energy generation, with a 10,000-watt PV array capturing sunlight from early morning to late afternoon.