Smirec

What Smirec does

SMIREC (Syndicat mixte des réseaux d'énergie calorifique) is a French public mixed syndicate that owns and operates a district heating network in the Seine-Saint-Denis department of Île-de-France. The network spans approximately 120 km of underground pipeline, making it the second-largest district heating network in the Île-de-France region, and serves over 85,000 equivalent housing units across multiple municipalities including La Courneuve, Saint-Denis, Villetaneuse, Pierrefitte-sur-Seine, and Épinay-sur-Seine. Heat is produced primarily from geothermal energy at central production sites such as the Rû de Montfort facility in Saint-Denis, supplemented by biomass, gas, and recovered energy sources; over 65% of the energy mix is renewable (over 70% per recent governance communications). Thermal energy is transferred to connected buildings via heat exchangers at production sites and at building-level substations without mixing fluids, providing heating and domestic hot water to residential, social housing, and public facilities.

As a public territorial entity under French law, SMIREC is owned by its member municipalities and governed by a Comité syndical; the most recent leadership change occurred on June 30, 2026, with Sophie Rigard elected Présidente succeeding Laurent Monnet. Heat delivery is operated under a public service delegation (DSP) contract, which is why SMIREC itself lists only nine employees — most operational and maintenance functions sit with the delegated concessionaire. Pricing is regulated and contract-based, with explicit commitments to tariff stability for subscribers, and customer acquisition occurs through formal network connection agreements with building owners, social housing operators, and municipalities rather than through retail channels.

The organization is pursuing three concurrent fronts of activity: geographic expansion via pipeline extensions into additional communes (14 km of new pipeline and 40+ buildings added in Villetaneuse, Pierrefitte-sur-Seine, and Épinay-sur-Seine as of mid-2026), renewable-energy deepening through initiatives such as the 13.65 kWc photovoltaic self-consumption installation commissioned at the Saint-Denis geothermal site in February 2026, and community integration via a partnership with Plaine Commune to redevelop public spaces around production sites. Marketing and stakeholder communication are conducted through the official website (smirec.fr), Twitter, Facebook, a periodic newsletter, press releases, and a public procurement portal.

Name

Smirec

Legal name

SMIREC : Syndicat mixte des réseaux d'énergie calorifique

Website

https://smirec.fr

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Smirec is a French public mixed syndicate that operates the second-largest district heating network in Île-de-France, serving 85,000+ equivalent housing units across multiple municipalities via 120 km of geothermal-powered pipelines.

Ownership category

akta.pro rank

Product category

District Heating Services

NAICS

Steam and Air-Conditioning Supply (221330)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Geothermal Direct Use Heat Projects (District Heating, Greenhouses, Aquaculture, Industrial Heat) (EUAMAEAG)

akta.pro secondary industries

District Energy & CHP-Based Microgrids (Thermal Networks + Power) (EUACALAL), District Energy Biomass Plants (Heating Networks) (EUAAAGAB)

Keywords

• District heating services
• Geothermal energy
• Heat distribution network
• Public utility heating
• Renewable thermal energy

GTM type

B2B

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Supply Chain

Distribution channels2 records

Marketing channels6 records

Core offering

SMIREC owns and operates a public district heating network that distributes locally produced renewable thermal energy — primarily geothermal, supplemented by biomass, gas, and recovered energy — to connected residential and public buildings across municipalities in Seine-Saint-Denis (Île-de-France). Heat is generated at central geothermal production sites and delivered via approximately 120 km of underground pipelines to over 85,000 equivalent housing units, with building-level substations regulating heat transfer to end users.

Product overview

Smirec operates a unified district heating network infrastructure that distributes renewable and recovered heat energy (primarily geothermal) to connected buildings across multiple municipalities in the Seine-Saint-Denis department. The network consists of approximately 120 km of underground pipes serving 85,000+ equivalent housing units, making it the second-largest network in Île-de-France. The service is organized into geographic sub-networks including La Courneuve and the DSP network, with heat produced at geothermal production sites and distributed via the primary and secondary network infrastructure to subscriber buildings.

Differentiator

Problem solved

Functional benefit

Products and services

• District Heating Network Service (Réseau de chaleur)

Quantifiable outcome

• 65%+ renewable energy in network mix
• +2 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Plaine CommunecoreStrategic or Co-development PartnerPlaine Commune is a key strategic partner in the public space development around SMIREC's geothermal production sites. They collaborate on urban redesign projects, including the recent redevelopment of areas surrounding the geothermal central plant in Saint-Denis. The partnership aims to create more pleasant, vegetated, and better-integrated public spaces within the neighborhood.

Scale indicators8 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Dalkia: EDF subsidiary and one of France's largest district heating network operators with a broad portfolio across multiple regions; overlaps with SMIREC in network operation, CHP/biomass/geothermal heat production, and public-sector heat supply contracts, but operates at a far larger scale and broader geographic footprint.
• Veolia Energie: Veolia's energy division operates district heating and cooling networks across Europe including France; directly comparable technology and customer segments (municipal heating, geothermal/heat recovery projects), though as part of a much wider environmental services and water utility portfolio.
• Engie Solutions: Subsidiary of Engie (the major French energy incumbent) operating heating networks, energy services, and urban infrastructure; comparable in serving municipal/public-sector clients with district heating and renewable heat, though Engie's portfolio is much broader and includes electricity, gas, and integrated multi-energy offerings.

Direct peers

• Coriance: French district heating operator running multiple réseaux de chaleur across Île-de-France and other regions; same customer base (residential, social housing, public buildings), same technology mix (geothermal, biomass, gas), and same regulatory framework of public service delegations.
• Réseau de chaleur de Grenoble (CCIAG / GEG): GEG operates one of France's largest district heating networks in Grenoble (also geothermal-heavy); comparable scale and renewable mix to SMIREC, but geographically distinct (Auvergne-Rhône-Alpes vs Île-de-France).
• Idex: French district heating and energy services operator with a portfolio of ~250+ networks serving ~500,000+ housing equivalents; directly comparable business model (local geothermal/biomass/gas heat networks, building connections, public service delegation contracts) and competes for the same municipal network tenders as SMIREC.
• CPCU (Compagnie Parisienne de Chauffage Urbain): Paris-based district heating utility operating the largest réseau de chaleur in Île-de-France; same business model (centralized geothermal/biomass-fed heating network serving residential and public buildings), same regulatory regime (French public service delegation), and same customer segment as SMIREC.

Regional players

• Réseau de chaleur de Béziers (Cévennes Energies): French regional district heating operator using geothermal/biomass energy mix serving the Béziers area; comparable business model and renewable energy focus to SMIREC but operating in a different geography (Occitanie vs Île-de-France).

Market position

Strengths5 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/Le_smirec
• Facebookfacebook.com/SMIREC-Syndicat-Mixte-des-R%C3%A9seaux-dEnergie-Calorifique-110177398387789
• LinkedInlinkedin.com/company/smirec

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Smirec