Sol Char Toilet

University of Colorado Boulder

The Sol Char Toilet uses solar power to convert waste into charcoal and fertilizer.

Product description Brand name and product description

The Sol-Char Toilet is a prototype toilet system with user interface, storage, and treatment. Parabolic dishes concentrate sunlight and convert it to heat that is used to disinfect excreta and make charcoal and fertilizer from it. An introductory video to the prototype is found here.

Target region(s) Target region for distribution/implementation (listed by country if specified)

Global; the prototype needs sunlight to function properly, hence regions with high sunlight are mainly targeted. It is constructed to operate off-sewer, to allow functionality in water scarce regions (often coinciding with sunny regions). In prototype phase 1, the toilet was laboratory tested. A field pilot is part of the planned phase 2.

Distributors/implementing organizations Organization(s) distributing/deploying this product directly to communities/individuals?"

This product has been implemented by the University of Colorado Boulder, Sol-Char research team.

Market suggested retail price Price per unit or service price per usage/terms (USD). Subsidies noted.

2,600-11,000 USD, depending on the size of the system.

Competitive landscape Similar products available on the market. May not be a comprehensive listing.

Other competitors in the “Reinvent the toilet challenge” such as the toilets made by California Institute of Technology and Loughborough University.

SDG targeted United Nations Sustainable Development Goals (SDGs) targeted with this product/application/service

Goal 6: Clean water and sanitation

Goal 7: Affordable and clean energy

Target user(s) Target user/consumer base (country, income segment)

Communities and households without access to adequate sanitation, wastewater infrastructure, or that use charcoal as an energy source; farmers and other users interested in fertilizer and soil amendments; people interested in recycling and sustainable technology.

The @AutodeskFdn blogged about our how-to guide for communities writing proposals for development projects