Sewage treatment plants account for more than 10 percent of the electricity consumption for public services in Switzerland's municipalities. However, some of these plants also produce energy: electricity and heat from sewage gas cogeneration plants, and heat from waste water. Thanks to support from "SwissEnergy for infrastructure plants", operators of sewage treatment plants throughout Switzerland were able to cut their energy costs by 24 percent in the period from 1992 to 2001.

Services

• Free advice on optimising energy consumption
• Consulting on cost-covering remuneration for feed-in of electricity produced from sewage gas
• Support for concluding electricity purchase and supply agreements
• Professional consulting on feeding sewage gas into the natural gas network
• Energy and ecological audits for the recycling of sewage sludge
• Information about subsidies

Publication

"Energie in ARA" ("Energy from sewage treatment plants"), a manual that is now widely known both in Switzerland and abroad, has been revised and updated to include a variety of new topics and reflect the latest status of technology. Copies may be ordered from the SFOE or directly from the VSA (Swiss Water Pollution Control Association) – see "Related documents").

Orders: Contact form