Known as the Sunrise House, this architect's retreat just north of San Diego basks in California's most celebrated element—sun. Solar panels on the roof power all of its modern conveniences, while wide glass windows bathe the interior in warm, natural light.  Photo 6 of 7 in Sustainable Second Homes by Luke Hopping

Sustainable Second Homes

6 of 7

Known as the Sunrise House, this architect's retreat just north of San Diego basks in California's most celebrated element—sun. Solar panels on the roof power all of its modern conveniences, while wide glass windows bathe the interior in warm, natural light.