# Solar-Powered Water Purifiers Swedish 'Solvatten' Ensures Sipping Safety By Katie Cordrey | Published 2009-01-25 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/solar-powered-water-purifier-swedish-solvatten-ensures-sipping-safety References: [treehugger](http://www.treehugger.com/files/2009/01/solvatten-water-container-purifies-drinking-water-with-sunlight.php) & [solvatten.se](http://www.solvatten.se/SOLVATTEN/Start.html) Clean water is a basic human need that Swedish inventor Petra Wadstrom is helping to meet. She has invented a solar-powered water purifier that is simple to use. The 'Solvatten,' Swedish for “sun water,” purifies water by exposing it to UV rays. The design uses thermal-siphoning to ensure that all of the water will be exposed and made safe. Once the unit is filled with water, it is placed in the sun and left until the face of the unit changes from red to green. The change in color indicates that the water is safe for consumption. Freshly treated water will also be warm and suitable for bathing or household chores. ## Trend Insights (Trend Hunter) - Score: 4.1/10 - Popularity: 28% | Activity: 86% | 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 - **Solar-powered Water Purifiers:** Disruptive innovation opportunity: Develop more efficient and portable solar-powered water purifiers for use in remote areas with limited access to clean water. - **UV Ray Water Purification:** Disruptive innovation opportunity: Create compact and affordable UV ray water purification devices for household use, reducing the reliance on traditional water purifying methods. - **Thermal-siphoning Technology:** Disruptive innovation opportunity: Explore the application of thermal-siphoning technology in other industries such as heating and cooling systems to improve energy efficiency. ### Sectors Adopting This - **Water Purification Systems:** Disruptive innovation opportunity: Develop advanced and cost-effective water purification systems that combine solar power and UV ray technology for widespread use. - **Renewable Energy:** Disruptive innovation opportunity: Create innovative solar power solutions for various applications, including water purification, to promote sustainable and clean energy practices. - **Humanitarian Aid:** Disruptive innovation opportunity: Improve the accessibility and effectiveness of solar-powered water purifiers for humanitarian organizations, enabling them to provide clean drinking water in disaster-stricken areas. ## Related on Trend Hunter - [Tire-Crafted Solar Stills](https://www.trendhunter.com/trends/floating-solar-still.md) - [Solar-Powered Pool Sanitizers](https://www.trendhunter.com/trends/solar-pool-ionizer.md) - [Swedish-Engineered Water Purifiers](https://www.trendhunter.com/trends/aarke-purifier.md) - [Water-Powered Air Purifiers](https://www.trendhunter.com/trends/swasher-pro.md) - [Vibrant Metal Water Purifiers](https://www.trendhunter.com/trends/conecto.md) - [Water-Powered Air Purifiers](https://www.trendhunter.com/trends/airsancta.md) - [Pure Drinking Water Systems](https://www.trendhunter.com/trends/spout-water.md) - [Water-Purifying Water Jugs](https://www.trendhunter.com/trends/luvia.md) - [Water-Producing Air Purifiers](https://www.trendhunter.com/trends/airtowater-converter.md)