Dalkia
80 years of CO2 emissions reduction
80 years of CO2 emissions reduction
First Energy Performance Contract
1937
First Energy Performance Contract

A small company called Chauffage Service lies the foundations for the future Dalkia in signing the first Energy Performance Contract to manage heating systems and meet specific temperature targets at Villiers-Saint-Denis hospital, in the north of France.

Dalkia
80 years of CO2 emissions reduction
80 years of CO2 emissions reduction
Growth in district heating systems
1950s
Growth in district heating systems

The city of Tours begins reconstruction to repair the ravages of the second world war. It awards Dalkia-predecessor Montenay a heating plant management contract for its public buildings.

Dalkia
80 years of CO2 emissions reduction
80 years of CO2 emissions reduction
Development of heating networks
Development of heating networks

Growth of new towns and cities promotes the emergence of district heating networks, initially running on coal and fuel-oil. Dalkia operates the first district heating networks for Lille and Evry.

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Did you know?
Drone-based aerial thermography
Drone-based aerial thermography

Dalkia monitors its heating networks using drone-based aerial thermography, a technological breakthrough offering a combination of accuracy and efficiency in detecting potential issues.

Dalkia
80 years of CO2 emissions reduction
80 years of CO2 emissions reduction
Diversification in the energy mix
1974
Diversification in the energy mix

The oil crisis quadruples the price of fossil fuels, which makes energy savings a top priority! Dalkia innovates in developing geothermal energy and energy-recovery solutions.

Dalkia
80 years of CO2 emissions reduction
80 years of CO2 emissions reduction
First biomass boilers
1980s
First biomass boilers

Dalkia continues to seek ways of creating a more diverse energy mix and commissions the first biomass boiler, tapping an abundant source of renewable energy in France: wood fuel.

Dalkia
80 years of CO2 emissions reduction
80 years of CO2 emissions reduction
The rise of cogeneration
The rise of cogeneration

Although a fossil fuel, gas has real advantages: it is relatively clean and supplies are less susceptible to fluctuations in oil prices. Cogeneration plants promise high efficiency. Dalkia uses these facilities to provide combined heat and power (CHP).

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Did you know?
Biomethane provides a new gas source
Biomethane provides a new gas source

Dalkia now uses biogas sourced from organic waste and products to create biomethane, which can be fed into the town gas network, providing a green energy source that contributes to the circular economy.

Dalkia
80 years of CO2 emissions reduction
80 years of CO2 emissions reduction
Harnessing the heat given off by data centres
Harnessing the heat given off by data centres

The booming of the digital economy requires an array of energy-intensive data centres. Dalkia focuses on recovered-energy solutions. In Val d'Europe, for instance, Dalkia harnesses the heat given off by a bank's data centre to supply the heating network.

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Did you know?
Harnessing other heat sources
Harnessing other heat sources

Dalkia is now exploring new horizons in energy recovery by pumping Mediterranean seawater, from which the heat is extracted to secure a supply of renewable energy for an eco-district in Marseille: this is known as marine energy.

Dalkia
80 years of CO2 emissions reduction
80 years of CO2 emissions reduction
Energy management
Energy management

In 2013, Dalkia opens its first Dalkia Energy Saving Center (DESC) to manage the energy performance of buildings. The centre collects data in real time from different sites to correct any deviation and optimise energy consumption.

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The future of energy management
The future of energy management

The DESC draws on human and digital intelligence. It is also currently testing artificial intelligence able to bulk-process the work of analysts, relieving them of the burden of repetitive tasks related to data processing.

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Did you know?
Developing recovery of unavoidable energy
Developing recovery of unavoidable energy

To help the town of Charleville-Mézières green its energy mix, Dalkia will harness the heat given off by the nearby PSA complex, Europe's largest foundry. The town's energy mix will switch from 100% gas to 60% renewable and recovered energy as a result.

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Smart grids
Smart grids

The Greater Lyon (Grand Lyon) network is set to become the largest green network in France, with an energy mix that comprises 85% renewable and recovered energy sources. The network is equipped with smart, energy-self-sufficient sensors that provide real-time information on indicators such as network temperature. The network also uses renewable energy storage systems to provide a buffer to offset spikes in demand.

Dalkia
80 years of CO2 emissions reduction
80 years of CO2 emissions reduction
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