SIEIL - Syndicat Intercommunal d'Energie d'Indre-et-Loire

What SIEIL - Syndicat Intercommunal d'Energie d'Indre-et-Loire does

SIEIL (Syndicat Intercommunal d'Énergie d'Indre-et-Loire) is a French public intercommunal syndicate founded in 1937, headquartered in Tours, operating as the Authority Organizing Energy Distribution (AODE) for the Indre-et-Loire department. The organization serves 271 communes (excluding Tours) with comprehensive public energy infrastructure management spanning electricity distribution (15,500 km of low and medium voltage networks serving 278,901 end users), gas distribution (over 110 communes via concessions with GrDF, Sorégies, Butagaz, and Primagaz), and public lighting (~57,400 light points across 198 communes and 6 communautés de communes). SIEIL also delivers Geographic Information System (SIG) services including cadastre visualization, urban planning administration (R'ADS), sanitation management (R'Spanc), DT-DICT network declarations, cemetery management, and the nationally-mandated PCRS (Plan Corps de Rue Simplifié) digitization of 15,000 km of road infrastructure. The organization is piloting remote-controlled public lighting with Val de Loire Numérique and operates 620+ EV charging points through its Modulo subsidiary, with international roaming via Hubject.

SIEIL operates under a non-commercial public financing model funded by member municipality contributions, per-inhabitant adhesion fees, per-light-point maintenance charges, and financial participation rates (40–100%) on infrastructure works. Revenue mechanics include recurring subscriptions (e.g., €0.10–€1.05 per inhabitant for various competencies, €23.86 per light point for maintenance) and group purchasing coordination for electricity (517 adherents, 145 GWh/year) and gas (121 adherents, 102 GWh/year) across the Centre-Val de Loire Region with partners ENERGIE Eure-et-Loir and SDEI Indre. Distribution occurs through direct institutional engagement with elected municipal committees; there is no commercial sales force. The organization has a 48-agent operational team and is led by President Jean-Luc Dupont. Its subsidiaries include Modulo (SPL for EV charging operations, co-founded with SIDELC in 2018) and EneR Centre-Val de Loire (regionalized renewable energy development vehicle covering methanization, photovoltaic, wind, and hydroelectric projects).

Name

SIEIL - Syndicat Intercommunal d'Energie d'Indre-et-Loire

Legal name

Syndicat Intercommunal d'Energie d'Indre-et-Loire

Website

https://www.sieil37.fr

Company type

Public

Founded year

1937

Operating status

Operating

Headcount range

11–50 employees

Short description

SIEIL is a French public intercommunal syndicate, founded 1937, managing electricity distribution, gas, public lighting, GIS services, and EV charging infrastructure across 271 communes in Indre-et-Loire. It operates as the regulatory Authority Organizing Energy Distribution (AODE) for the department.

Ownership category

akta.pro rank

Product category

Public Energy Distribution Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Regulation and Administration of Communications, Electric, Gas, and Other Utilities (92613)

SIC

Electric, Gas & Sanitary Services (4900), Natural Gas Transmisison & Distribution (4923)

akta.pro primary industry

Behind-the-Meter Aggregators Acting as DSO (Virtual Power Plant / Community Energy Operators) (EUADABAG)

akta.pro secondary industries

Head-End Systems (HES) & AMI Network Management (EUADAFAC), Interconnection, Permitting & Grid Services for DERs (EUAMAJAH)

Keywords

• Public energy distribution
• Electricity network management
• Public lighting services
• EV charging infrastructure
• Municipal GIS services

Headquarters

HQ city

Tours

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Infrastructure, Operations, Technology or R&D, Others

Revenue model

1. Member municipality contributions and participation fees: SIEIL funds its operations through annual membership contributions from municipalities and intercommunal structures. These contributions vary by service: electricity (participation rates of 40-100% for extensions, 100% for reinforcement and securization, 70% for underground burial); public lighting (adhesion cost of €1.05 HT per inhabitant for communes, €0.40 HT per inhabitant for EPCIs; maintenance of €23.86 HT per light point); and SIG services (€0.10 HT per inhabitant for EPCI, €0.32 HT per inhabitant for communes).
2. Group energy purchasing coordination: Since 2015, SIEIL coordinates group purchasing of electricity and gas for member municipalities, partnering with ENERGIE Eure-et-Loir and SDEI Indre. In 2022, the electricity group had 517 adherents, 11,771 delivery points, and 145 GWh/year. Gas group had 121 adherents, 815 consumption points, and 102 GWh/year. The group purchasing model helps municipalities comply with regulatory requirements following the end of regulated sale tariffs (TRV).
3. Public electric vehicle charging infrastructure ownership: SIEIL owns the public EV charging infrastructure on its territory. Since 2018, exploitation and maintenance of the charging stations are managed through the SPL Modulo. SIEIL as authority retains infrastructure ownership while delegating operations.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels5 records

Core offering

SIEIL is a public intercommunal syndicate (établissement public de coopération intercommunale) that organizes and manages public energy distribution on behalf of 271 communes of Indre-et-Loire, France (excluding Tours). It acts as the Authority Organizing Energy Distribution (AODE), overseeing 15,500 km of electricity networks, public gas distribution for 110+ communes, ~57,400 public lighting points, a Geographic Information System (SIG) including PCRS digitization, and public EV charging infrastructure through its Modulo subsidiary. SIEIL also coordinates group purchasing of electricity and gas and provides renewable energy development via EneR Centre-Val de Loire.

Product overview

SIEIL is a public intermunicipal union managing public energy distribution networks across Indre-et-Loire department. The organization operates as a platform offering multiple interconnected services: electricity network management (15,500 km of networks), gas distribution (110+ communes), public lighting (57,400 light points across 198 communes), geographic information systems including PCRS digitization, and public EV charging infrastructure through its Modulo subsidiary. The portfolio also includes renewable energy development via EneR Centre-Val de Loire, energy transition support including group purchasing and efficiency incentives, and online services like PayFiP payment. SIEIL acts as the Organizing Authority for Energy Distribution, exercising concession control over Enedis and other operators while providing direct services to member municipalities.

Differentiator

Problem solved

Functional benefit

Brands

• EneR Centre-Val de Loire: Regional entity for developing renewable energy projects including methanisation, photovoltaic, wind, and hydroelectricity across Centre-Val de Loire region
• Modulo

Products and services

• Electricity Network Management Ownership and management of 15,500 km of low and medium voltage electricity networks across 271 communes of Indre-et-Loire (excluding Tours), including extension, reinforcement, securing, and underground burial of networks. Includes concession control of Enedis.
• Gas Distribution Management Management of public natural gas and propane distribution for over 110 communes as the Organizing Authority for Energy Distribution (AODE). Manages delegation of public service contracts with multiple gas suppliers including GrDF, Sorégies, Butagaz, and Primagaz.
• Public Lighting Management Management of public lighting for 198 communes and 6 communautés de communes, covering approximately 57,400 light points. Services include new construction work, maintenance, and investment optimization through multi-year plans.
• Geographic Information System (SIG) Geographic information system providing spatial data management for territories, including cadastre visualization, urban planning administration (R'ADS), non-collective sanitation management (R'Spanc), work declaration near networks (R'DT-DICT), and cemetery management (R'Cim). Also manages the Plan Corps de Rue Simplifié (PCRS) digitization of 15,000 km of roads.
• Modulo EV Charging Network Public charging infrastructure for electric and hybrid vehicles deployed across the territory. Managed by Modulo SPL (Société Publique Locale), the network includes over 620 charging points with international roaming capabilities through Hubject.
• Energy Transition Services Energy transition support including energy efficiency call for projects (€300,000 endowment in 2026), group energy purchasing for electricity and natural gas (517 electricity members, 145 GWh/year; 121 gas members, 102 GWh/year), and financial aid for municipalities for building renovations.
• EneR Centre-Val de Loire Renewable energy development entity covering the Centre-Val de Loire Region. Develops projects in methanization, photovoltaic, large-scale wind, and hydroelectricity. A private law company with over 80% public governance.
• PayFiP Online Payment Service Secure online bill payment service allowing users to pay SIEIL invoices via credit card or SEPA direct debit through the French government's TIPI platform on tipi.budget.gouv.fr, available 24/7.

Quantifiable outcome

• 223 construction sites managed in 2024 with €11 million invested in electricity infrastructure
• +3 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature3 records

Partnerships

Eleven partnerships are on record, tiered strategic, core and minor.

• Val de Loire NumériquestrategicStrategic or Co-development Partner · 1 January 2024Val de Loire Numérique collaborates with SIEIL to deploy remote piloting technology for public lighting across Indre-et-Loire municipalities, enabling dynamic control of lighting points, schedules, and intensity for energy efficiency and ecological objectives.
• HubjectcoreTechnology or Integration · 18 February 2019Hubject and Modulo signed an international roaming contract on 18 February 2019, enabling EV drivers to access SIEIL's/Modulo's charging infrastructure via Hubject's interoperability platform. This allows users to recharge beyond territorial borders regardless of the charge point operator. Virta provides the software connectivity linking Modulo to Hubject.
• Modulo (Société Publique Locale)coreStrategic or Co-development Partner · 1 July 2018SIEIL co-founded Modulo SPL in July 2018 with SIDELC (Loir-et-Cher) to manage public EV charging infrastructure exploitation and maintenance. SDEM Marne, SDE18 Cher, and SDE68 Rhin joined later. Modulo operates the charging network (620+ points) and enables international roaming through Hubject. SIEIL retains ownership of the infrastructure while Modulo handles operations.
• ENERGIE Eure-et-Loir and SDEI IndrecoreStrategic or Co-development Partner · 1 January 2015Since 2015, SIEIL partners with ENERGIE Eure-et-Loir and the Syndicat Départemental d'Énergies de l'Indre (SDEI) to operate joint group purchasing of electricity and gas for member municipalities across the Centre-Val de Loire Region, under the 'Territoire d'énergie' banner.
• EneR CENTRE-VAL DE LOIREcoreStrategic or Co-development Partner · 1 January 2012EneR CENTRE-VAL DE LOIRE (formerly EneRSIEIL, regionalized in 2018) is a private law company majority-controlled by public entities (>80%) that develops renewable energy projects across the Centre-Val de Loire Region. SIEIL co-founded the entity to develop methanization, photovoltaic, wind, and hydropower projects. The entity is the vehicle for SIEIL's renewable energy strategy at regional scale.
• GrDF (Gaz réseau Distribution France)coreChannel Partner/ Reseller/ DistributorGrDF is the main natural gas distribution concession holder serving 86 communes in Indre-et-Loire. SIEIL controls GrDF's activity as AODE, managing 39 of these communes directly while the Métropole manages 22 and 25 are self-managed.
• SorégiescoreChannel Partner/ Reseller/ DistributorSorégies is the propane gas concessionaire serving 70 communes in delegation of public service (DSP) with SIEIL, making it the largest propane distributor under SIEIL's authority.
• Butagaz and PrimagazminorChannel Partner/ Reseller/ DistributorButagaz serves 1 commune and Primagaz serves 1 commune in propane DSP with SIEIL, in addition to Sorégies.
• EnediscoreTechnology or IntegrationEnedis is the electricity distribution network operator (concessionaire) to which SIEIL has entrusted network exploitation. Enedis operates the 15,500 km of electricity networks, installs and manages Linky smart meters, and performs network surveillance (including helicopter inspections). SIEIL, as AODE, controls Enedis's activities.
• EDFcoreTechnology or IntegrationEDF, under its public service mission, provides electricity supply to clients benefiting from regulated tariffs. SIEIL, as AODE, ensures EDF fulfills its public service obligations as defined in the concession contract.
• Régie Plus, Orchis, and Entraide et Solidarités (local insertion associations)minorStrategic or Co-development PartnerSIEIL partners with three local insertion associations (Régie Plus, Orchis, and the Chinon branch of Entraide et Solidarités) for rehabilitation and exterior painting of degraded transformer substations. SIEIL trains association staff on electrical infrastructure work, providing these associations with recurring complementary multi-year activity.

Scale indicators12 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• SIDELC - Syndicat Intercommunal de Distribution d'Énergie du Loir-et-Cher: Neighboring departmental energy syndicate co-founding Modulo SPL with SIEIL in 2018. Operates as AODE with same multi-competency model (electricity, gas, lighting, EV charging) in adjacent Loir-et-Cher department.
• ENERGIE Eure-et-Loir (SDE28): Departmental energy syndicate of Eure-et-Loir, partnering with SIEIL since 2015 on joint group purchasing of electricity and gas across Centre-Val de Loire region. Same syndicate-type structure and AODE competencies.
• SDEI - Syndicat Départemental d'Énergies de l'Indre: Departmental energy syndicate of Indre, the third partner in SIEIL's coordinated group purchasing arrangement. Operates same AODE model for electricity, gas, and public lighting in neighboring department.
• SDEM Marne: Departmental energy union of Marne that joined Modulo SPL in 2019 as a shareholder. Same intercommunal syndicate structure with multi-competency mandate (electricity, gas, lighting, broadband).
• SDE18 Cher: Energy syndicate of Cher department, also a Modulo SPL shareholder since 2019. Provides identical public intercommunal energy services framework as SIEIL in neighboring Centre-Val de Loire territory.
• SDE68 Haut-Rhin: Energy and water syndicate of Haut-Rhin (now part of SDEA), Modulo SPL shareholder since 2019. Same multi-competency syndicate model with AODE functions and adjacent EV charging activity.

Broad incumbents

• FNCCR - Fédération Nationale des Collectivités Concédantes et Régies: National federation representing French local authorities on energy, water, and digital infrastructure concessions. SIEIL's president chairs FNCCR; it is not a peer in service terms but the umbrella body governing AODE operating frameworks.
• Territoire d'énergie Centre-Val de Loire: Regional umbrella coordination body grouping departmental energy syndicates of Centre-Val de Loire (including SIEIL, SDEI, ENERGIE Eure-et-Loir). Provides joint procurement and policy representation; SIEIL is both a member and operates as one of its constituent syndicates.

Others

• Enedis: National electricity distribution system operator (DSO) to which SIEIL has entrusted network exploitation under concession. Operates the 15,500 km of SIEIL's networks and Linky meters; SIEIL acts as AODE controlling Enedis's territorial activity.
• GrDF (now GRDF): Main natural gas distribution concession holder serving 86 communes under SIEIL's AODE control. Sister operator in the gas distribution chain; comparable relationship to the Enedis electricity partnership.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xtwitter.com/SIEIL37
• LinkedInlinkedin.com/company/sieil37

Revenue estimate

Valuation estimate

Number of profiles

Profiles19 records

Subsidiaries2 records

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 SIEIL - Syndicat Intercommunal d'Energie d'Indre-et-Loire