Best Sustainable Technology or Product

In a world where it can appear that almost every product claims eco credentials, we are seeking to identify a sustainable technology or product that really stands out. Its manufacture should leave a light environmental footprint and its use should save energy, water, CO2 emissions or pollution. Entries should include:

• Pictures of the product, ideally including images of it installed in a private home
• A detailed description of the product or technology
• Performance details and price points
• Evidence to support its claims for sustainability (such as real-world performance statistics, accreditations, U-values, life expectancy etc).