Recovered energies: renewable and attractive!

As the name suggests, a recovered energy is an energy collected during certain processes. Otherwise, it would be lost! The steel industry, the recovery of household waste and the operation of data centers generate a lot of heat. Dalkia is positioning as an innovative player to take advantage of this heat and transform it into heating, domestic hot water, cold or power.

Hands holding the Earth representing Dalkia’s commitment to the planet as energetic services company

The principle

Industrial processes generate a lot of heat. This waste energy comes, for example, from the steel industry, from the incineration of household waste or from the operation of computer servers. To take advantage of it, we capture this energy: we use it for the needs of the site or we transport it to the buildings that need it. In a logic of circular economy, this energy is infinitely renewable. This is why we talk more and more about renewable and recuperated energies (ENR&R). Like solar, wind or biomass, recovered energy is a major asset for the energy transition.


Recovered energy is the first renewable energy

109,5 TWh

This is the annual French source of industrial heat

36 %

The proportion of fuel consumption in industry that can be recovered

Group of children in front of a globe to represent energy recovery and preservation of the planet

How does it work?

As Lavoisier said, "Nothing is lost, everything is transformed!"

We recover the waste heat generated by the steel industry, household waste incineration or data center operations. For example, it can be recovered to supply a district heating network and thus heat homes, hospitals, public facilities or businesses.

The assets

The fight against waste

Instead of drawing on fossil fuels, we might as well use the heat produced by industrial processes! It's as simple as that.

An inexpensive energy

This released energy is cheaper than fossil fuels... provided that the energy source is close to the buildings that will benefit from it.

No additional CO2 emissions

By definition, energy recovery does not emit any polluting emissions into the atmosphere (or only marginally).

Our expertise

41,3 %

of local renewable energy used by Dalkia is recovered energy

Do you want to know more?

Our experience

They use recovered energy to heat! Get inspired by their experiences and contact us to find out how to take advantage of these virtuous energy sources.

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