Dalkia provides tailored energy performance solutions that allow local authorities to reduce their overall operating budget for energy facilities.

Bespoke solutions to help local authorities implement the energy transition

Symbioz ensures a more cost-effective approach and greater control over the budget in delivering energy savings while improving building comfort, reliability and quality of service. Symbioz caters to the specific needs of each building, covering everything from schools to town halls and theatres.

Cost-effective comfort

Symbioz makes it easier to balance the budget for building improvements while unlocking energy savings and offering the most attractive prices in the energy market.

Guaranteed energy savings

Symbioz ensures reduced energy consumption with or without refurbishments while limiting outlay in line with project investment capabilities.

A local service available when and where needed

Dalkia's local specialists are on hand to help 24/7.

Tailored technical expertise

Symbioz delivers innovative, effective solutions to ensure that heating services meet standards in terms of availability and quality, even while work is being carried out, in line with relevant regulations.

Support for CSR initiatives

Symbioz offers alternatives to fossil fuels and makes building occupants more aware of the need to achieve energy savings. We are committed to social diversity and local jobs.

Symbioz in figures


Local authorities account for 12% of greenhouse gas emissions in France.


Local authorities account for 12% of greenhouse gas emissions in France.


The target reduction in the final energy consumption of tertiary buildings by 2050 in relation to 2020.


The number of public buildings operated by Dalkia.


Energy reporting

Track energy consumption and KPI with Inviso®.

Trading room

Innovative, tailored solutions to buy energy at the best possible price.


Clear information on energy use to promote greener practices.

Renewable energy solutions for building heating systems

Renewable energy solutions for building heating systems: Avenir biomasse® supplies a secure source of heating from wood-fired heating plants.

Energy performance management

Energy performance management services unlock long-term savings.

Energy Savings Certificates ESC


Dalkia is with you every step of the way from designing eligible projects to securing ESCs

Would you like to hear more about our solutions?