Sectors

Private and multi-occupancy buildings

Decarbonising buildings with long-lasting performance.

-80
%
energy savings

Mouratoglou Hotel & Resort

The centre chose geothermal energy to supply its courts, swimming pools and hotel, achieving 80% energy savings and ROI within 7 years.

Eren low-carbon buildings

Building types

Expert building blocks, assembled into complete solutions.

Residential and multi-occupancy housing

Residential buildings and co-ownerships: improve the EPC rating through heating, without major works or rehousing

Offices and Business Parks

Education and Healthcare

Retail and shopping centres

Hospitality and leisure

Our approach

Challenges

Reduce OPEX and consumption

We cut your energy bill with measured solutions.

Exceed carbon and regulatory targets

Every solution deployed is documented and verifiable for your reporting.

Standardise and manage a multi-site portfolio

A single framework, rolled out across your entire portfolio.

Improve occupant comfort and satisfaction

 We manage continuously to guarantee comfort, air quality and peace of mind for occupants.

Value proposition

Our tailored offer

The offer covers the entire chain: low-carbon heating and cooling production (geothermal energy, heat pumps, solar), smart building control via BMS and AI, and structured financing – CAPEX, OPEX or third-party financing with a performance commitment.

BMS control and AI optimisation

Metering, supervision, optimisation, alerts

Low-carbon boiler plant

Low-carbon heating and cooling

Electricity storage and flexibility

Thermal/electrical storage, demand response, self-consumption

Energy-as-a-Service and financing

EPC, third-party financing, guaranteed performance

Expertise

BMS control and AI optimisation

We can manage your buildings end to end: the BMS supervises and centralises equipment, and AI automatically optimises to reduce consumption.

A complete control chain

Metering, supervision, automation, continuous optimisation.

Optimisation AI

Automatic adjustment of HVAC and boiler plant according to weather and usage.

End-to-end control

Hardware + software to make performance reliable.

Field compatibility

Existing equipment can be retained and integrated gradually.
Discover
33
%
less CO2 and energy

x15 Union Investment buildings

163,000 m² of offices optimised simultaneously through smart control. Centralised energy reporting, compliance with the French Tertiary Decree and BACS Decree ensured without a single worksite and without disrupting operations.

Expertise

Low-carbon boiler plant

Our shallow geothermal offer effectively reduces your costs and your carbon footprint, thanks to heating/cooling systems designed to maximise performance.

Low-carbon heating and cooling

Using shallow geo-energy and heat pumps to cover heating and cooling according to the site’s needs.

Continuous AI optimisation

Automatic adjustment of heating and cooling (set points, schedules, heating curve), notably according to weather and usage.

More stable performance and costs

Local energy, less dependent on fossil fuels, with better control of operational drift.
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78
%
CO2 reduction

École Polytechnique

The engineering school chose borehole geothermal energy to provide heating and hot water to its 4-building campus residence. The gas boiler was completely replaced, installed without disrupting campus life, cutting the energy bill by 60%.

Expertise

Energy storage and flexibility

Our storage and flexibility offer enables you to make the most of your local production, smooth out consumption peaks and activate flexibility mechanisms to optimise your energy costs. An integrated storage + control approach: batteries, thermal storage, load forecasting and tariff arbitrage, coordinated by our AI.

Thermal and electrical storage

Batteries and thermal storage systems to shift usage, reduce power demand and maximise self-consumption.

Predictive control and arbitrage

AI adjusts charge/discharge cycles in real time according to grid tariffs, weather and the building’s usage profiles.

Flexibility and monetisation

Participation in demand response and ancillary services mechanisms, with reporting built into overall performance monitoring.
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-77
%
energy

Gex co-ownership – 3 apartment buildings · 61 homes

Shallow borehole geothermal energy used as a natural thermal storage source for heating and domestic hot water. Financed through an energy performance contract, energy savings certificates (CEE) and the Heat Fund, with no upfront cash outlay for the co-ownership.

Expertise

Energy-as-a-Service and financing

We finance, install and guarantee performance; you pay per use or according to the savings achieved. Structured financing adapted to your constraints: CAPEX, outsourced OPEX or third-party financing with guaranteed results.

Flexible models

Controlled CAPEX, OPEX contract or third-party financing: the solution adapts to your budget and asset constraints.

Performance commitment

Each contract includes verifiable indicators (savings, CO₂, availability) with real-time monitoring.

Zero technical risk

We take care of engineering, installation, maintenance and optimisation throughout the contract term.
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-20%
energy consumption · €0 CAPEX committed

Emeis – 3 healthcare facilities

17,000 m² of clinics and care homes (Andilly, Paris 16, Boulogne-Billancourt) managed on a single platform. Unified BMS, dynamic AI, air-source heat pump, all financed by the savings generated through an Energy Performance Contract (EPC), IPMVP protocol, without committing any of Emeis’s CAPEX.

Testimonial

“This project embodies our commitment to bringing this institution of excellence a new technology to test an unprecedented and sustainable energy mix, combining geothermal energy, solar energy and smart control. We are proud to support École Polytechnique on an exemplary path towards carbon neutrality.”

Fabrice Didier

CEO of Accenta

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