Since 2011, as part of a public service delegation contract, the city of Versailles has entrusted Verséo with the design, financing, construction of new equipment and operation of your urban heat network.
Verséo will be in charge of its management to cover your heating and domestic hot water needs to many buildings in the city. It is 22 km long and now provides heating and hot water from its boiler room, the equivalent of 11,000 homes.
Since January 1, 2022, the network has been 50% powered by renewable energy: biogas. The Verséo boiler room was built in 1970, and its boiler initially worked with heavy fuel oil. Two other oil boilers were installed a few years later and in 1984 a coal boiler completed the installation.
It was in 1993 that the first boiler was converted to operate in a mixed fuel oil and gas mode, followed by a second boiler in 1996.
In 1998, coal was permanently abandoned in favour of gas and the boiler was replaced by a natural gas-fired cogeneration turbine.
Since 2011, a number of projects have been undertaken to modernize the system, including the renovation of the boiler room facilities, the replacement of pipe sections and the low-temperature crossing, as well as the installation of sub-intelligent stations for optimized remote management of the network.
In 2012, the cogeneration turbine was renewed to ensure that it will function properly for the next few years.
Today, the three boilers and cogeneration turbine installed on the site provide nearly 90 GWh per year to the grid and can supply the equivalent of 11,000 homes, with an installed capacity of 105 MW.
Since January 1, 2022, the network has been powered by renewable energy: biogas.