solarpunk-aesthetic:

Heliotrope Solar House

Designed by Rolf Disch and constructed in Freiburg, Germany, the house uses sunlight for both electricity and water heating. It collects rainwater and recycles domestic wastewater, and also uses a composting toilet.

Disch’s design is so effective that it actually generates 5 times more energy than it uses on average, making it the world’s first energy positive solar home!