# Homes with Rotating Roofs Spain's Solar-Powered B & W House By Marissa Brassfield | Published 2009-01-20 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/solar-power-roof-home References: [treehugger](http://www.treehugger.com/files/2009/01/spain-solar-power-home-rotating-roof.php) & [solardecathlon.org](http://www.solardecathlon.org/) The eco-friendly B & W solar-powered house you see in the gallery above is the work of scientists from the University of Madrid. It's Team Spain's entry into the Solar Decathlon in Washington, D.C. The B & W House has a roof equipped with thermal and photovoltaic solar panels; the roof rotates such that it is always in the best position to capture sunlight. At night, the roof rotates to lie flat, thereby reducing wind resistance. This solar-powered house is expected to produce enough energy to not only power the home, but also donate energy back to the power grid. ## Trend Insights (Trend Hunter) - Score: 3.0/10 - Popularity: 38% | Activity: 43% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Millennial, Gen X - Top markets: North America, Europe, Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### What Makes This Trend Stand Out - **Rotating Roofs in Homes:** Incorporating rotating roofs in homes can optimize solar energy capture and reduce wind resistance. - **Solar-powered Houses:** The use of solar power in houses can enable energy self-sufficiency and even contribute excess energy back to the power grid. - **Eco-friendly Architecture:** The development of eco-friendly architecture can lead to sustainable homes and reduce reliance on traditional energy sources. ### Sectors Adopting This - **Renewable Energy:** The renewable energy industry can benefit from advancements in technologies like rotating roofs and solar-powered houses, creating opportunities for innovation and growth. - **Construction and Real Estate:** The construction and real estate industry can embrace eco-friendly architecture to meet the demand for sustainable and energy-efficient homes, driving market differentiation and attracting environmentally conscious customers. - **Smart Home Technology:** The incorporation of rotating roofs and solar power in houses presents opportunities for the smart home technology industry to develop innovative systems and integrations for efficient energy management. ## Related on Trend Hunter - [Off-Grid Solar Panel Residences](https://www.trendhunter.com/trends/florian-busch-architects.md) - [Solar-Powered Vineyard Buildings](https://www.trendhunter.com/trends/vineyard-building.md) - [Solar Powered Compact Homes](https://www.trendhunter.com/trends/e55000.md) - [Sustainable Solar-Powered Homes](https://www.trendhunter.com/trends/the-wanda.md) - [Solar-Powered Mexico Holiday Homes](https://www.trendhunter.com/trends/casa-girasol.md) - [Chic Curved Houses](https://www.trendhunter.com/trends/curved-house1.md) - [Consolidated Photovoltaic Systems](https://www.trendhunter.com/trends/photovoltaic-systems.md) - [Barn-Inspired Timber Residences](https://www.trendhunter.com/trends/house-w-1.md) - [Sustainable Dynamic Hilltop Buildings](https://www.trendhunter.com/trends/ro54.md)