Continuing its commitment to reducing the production of greenhouse gas emissions, the French city of Orleans launched its dealer Socos (a subsidiary of Dalkia), the first biomass cogeneration boiler powered Orleans.
A second boiler will be launched in 2014, north of the city.
Source, one of the most important Orleans with its 18,000 inhabitants, now has a way of producing electricity and heating “clean.” After 14 months of work, the boiler is delivered on time and gradually feed subscribers as of December 26, to be 100% operational by the end of January 2013.
The biomass boiler of 25 MW thermal, called “cogeneration” has a dual purpose. It simultaneously produces heat for the district heating network in the area (thermal power of 17 MW) and electricity fed into the public grid and sold to EDF (electric power of 7.5 MW).
With a length of 25 km, the district heating network (superheated water) supplies nearly 7,500 homes and buildings in the area, for the equivalent of 13,000 homes heated. Among the major buildings concerned are: “the university campus, the future great hospital of Orleans (2015), schools, shopping centers, office buildings, etc.”
The amount of investment required to build the boiler exceeds 40 million euros.
A supply chain of wood
Approximately 90,000 tons of wood are consumed annually for proper operation of the boiler. The supply will be limited to a geographical area within a radius of 100 km, with the double advantage to operate local businesses and limiting distances.
Biomass cogeneration is based on three resources: “the forest resource (forestry products: wood pruning, wood downgraded, thickets,…), by-products from the timber industry (sawmills, joinery: bark falls, platelets,…) and clean recycled wood (pallets, crates,…). ” These consumption, which is more rational, do not in any case disappear forests “contribute to their maintenance and extension”.
Orleans, a city of sustainable development
Initiating this project, Orleans has another opportunity to reduce greenhouse gas emissions emitted in its territory. Nearly 43 000 tonnes of CO2 emissions will thus be avoided each year.
Multiplying these initiatives, Orleans wants a 20% reduction of CO2 emissions on its territory by 2020. To achieve this, and set clear objectives in the coming years, she published last October Territorial Climate and Energy Plan, a sort of guide for the fight against climate change and saving energy.
A strong commitment is the construction of a second biomass boiler.
Biomass, act 2!
Orleans City Hall unveiled earlier this year a second biomass boiler project, this time north, providing more power cleaner and greener in all of its district heating networks. The project will be launched during the second half of 2014.
Key figures on two biomass boilers in Orleans
• Nearly 15,000 homes affected (27% of Orleans)
• Over 90 million investment for the two projects
• 52 km of networks
• 90,000 tons of CO2 emissions avoided, the equivalent of 40,000 cars
• In mid-2014, the two networks will be powered heating to biomass