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Antoine FrérotVeolia

Antoine Frérot

CEO of Veolia

Supporting energy transition 

In Braunschweig (Germany), Veolia supports the municipality in the energy transition, especially from coal to renewable energy. It all began with the renovation of the police station in the Gliesmarode neighborhood. The work included replacing the old highly polluting oil and coal-fired heating plant. Braunschweig seized the opportunity to develop a complete heating and electricity network for the neighbourhood powered by renewable energy.

The plant was commissioned in 2013, replacing 34 coal, gas and oil burners. The complex consists of four parts: a cogeneration plant, a wood boiler, a natural gas boiler and heat storage. The cogeneration plant runs at full capacity throughout the year simultaneously producing electricity and heat. It is fed by methane, which is processed biogas, extracted from organic waste (especially plants) from the city’s activities. As the waste decomposes, methane, is released and used to fuel a generator that produces green electricity. The heat generated when producing the electricity - exhaust gases, water used to cool the motor - is recovered. Heat accumulators store the emerging heat and release it when needed. In conventional plants, this inherent heat goes to waste. Here, on the contrary, it is used to provide heating for the inhabitants of Gliesmarode.

The wood-fired boiler is only in operation between October and March. Using woodchips, it acts as a back-up to provide enough heating on cold winter days. The impact on environment is reduced: the wood used is local residual wood, the combustion gases generated are filtered and purified and the wood ash is used as fertilizer. The gas-fired boiler is only used as a last resort to help the plant meet demand, or when one of the other two installations is under maintenance. In total, the plant annually supplies 9,200 MWh of electricity for about 1.000 households and 15,600 MWh of heat to more than 2,000 households in the Gliesmarode district. This renewable energy production avoids the emission of 8,000 tons of CO2 per year.

Veolia is committed to reducing its greenhouse emissions across its entire business chain and those ofits clients to limit global warming to 2°C by the end of the century compared with the pre-industrial era.

Climate commitments:

 Initiatives we are part of

SE4ALL District Energy,the Global Alliance for Building and Construction, The Business Alliance forWater and Climate, TCFD