SIEDS

What SIEDS does

SIEDS (Syndicat d'Énergie des Deux-Sèvres) is a French public territorial energy syndicate established approximately 100 years ago (founded circa 1923–1925) and headquartered in Niort, Deux-Sèvres. It operates as the legally designated organizing authority (autorité organisatrice) for the public electricity and gas distribution service across the Deux-Sèvres department in the Nouvelle-Aquitaine region, serving 252 member communes and 8 intercommunalities (EPCI). SIEDS controls and oversees the delegated public service missions granted to concession operators Séolis, GÉRÉDIS, ENEDIS, and GRDF, supervising a distribution network that encompasses 15,129 km of electrical lines, 17 source substations, and 249 connected renewable energy production installations.

Name

SIEDS

Legal name

Syndicat d'Énergie des Deux-Sèvres (SIEDS)

Website

https://sieds.fr

Company type

Private

Founded year

1923

Operating status

Operating

Headcount range

11–50 employees

Short description

SIEDS is a French public territorial energy syndicate serving 252 communes and 8 intercommunalities in Deux-Sèvres, managing electricity and gas distribution concessions plus financial aid, GIS, EV charging, and renewable energy programs.

Ownership category

akta.pro rank

Product category

Public Energy Distribution Services

NAICS

Regulation and Administration of Communications, Electric, Gas, and Other Utilities (926130), Electric Power Generation, Transmission and Distribution (2211)

SIC

Electric, Gas & Sanitary Services (4900), Natural Gas Distribution (4924)

akta.pro primary industry

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

akta.pro secondary industries

DER Financing, Contracting & Program Management (PPAs, Shared Savings, Performance) (EUAFAHAL), DER Aggregation & Virtual Power Plants (VPPs) (EUAMAJAC)

Keywords

• Public energy distribution
• Electricity distribution management
• Municipal energy services
• Energy infrastructure syndicate
• Public energy authority

Headquarters

HQ city

Niort

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Public Energy Distribution Concession Management: SIEDS controls and oversees the delegated public service missions of electricity and gas distribution, conceded to SEOLIS, GÉRÉDIS, ENEDIS, and GRDF under concession contracts. As the organizing authority, SIEDS invests in network modernization, extension, and security. Revenue is generated through member contributions, network fees, and public investment in infrastructure.
2. Energy Group Purchasing (Groupement d'Achats): SIEDS constitutes a joint purchasing group (groupement de commandes) for communes to procure natural gas and electricity, facilitating public procurement and potentially generating administrative fees or volume-based rebates.
3. Financial Aid and Subsidy Programs: SIEDS distributes public financing programs (totaling 12 million euros in financial aid in 2024) to member communes for electricity network works, public lighting, energy renovation, and self-consumption projects. Over 75% of the SIEDS global budget is invested in various aid programs.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels8 records

Core offering

SIEDS is a public territorial energy syndicate that acts as the organizing authority for electricity and gas distribution across 252 member communes and 8 EPCI in the Deux-Sèvres department of France. The syndicate oversees concession contracts with operators (SÉOLIS, GÉRÉDIS, ENEDIS, GRDF), distributes financial subsidies for network modernization, public lighting, energy renovation, and renewable self-consumption projects, deploys EV charging infrastructure (Réseau AlterBase), and provides the SIGil geographic information platform and energy advisory services (économes de flux) to municipalities.

Product overview

SIEDS (Syndicat d'Énergie des Deux-Sèvres) operates as a multi-service energy syndicate offering a unified platform of infrastructure services and financial aid programs for municipalities. The core offerings include public electricity and gas distribution management through concession holders, geographic information services (SIGil suite with SIGil'carto, SIGil'urba, and SIGil'PCRS), and the Cadastre Solaire for solar potential assessment. Financial assistance programs cover electricity networks, public lighting, public building energy renovation, and photovoltaic self-consumption. The organization also manages the AlterBase electric vehicle charging network and provides educational programs on renewable energies. Services are delivered through the Espace Collectivité digital platform for municipal access.

Differentiator

Problem solved

Functional benefit

Products and services

• SIGil (Système d'Information Géographique d'intérêt Local) Geographic information system application for communes in Deux-Sèvres providing access to cadastre, network maps, urban planning documents, and communal data including cartography, urban planning, and PCRS modules.
• Cadastre Solaire Solar cadastre tool enabling municipalities to assess the photovoltaic potential of buildings and land across the territory, accessible via dedicated portal at cadastre-solaire-sieds.siterre.fr.
• Réseau AlterBase (EV Charging Infrastructure) Public electric vehicle charging station network managed by SIEDS across the Deux-Sèvres territory, providing infrastructure for sustainable mobility.
• Groupement d'achats d'énergie Collective energy purchasing group facilitating public buyers (communes and EPCI) to procure natural gas and electricity at better rates through coordinated public procurement.
• Service public électricité Public electricity distribution service managed through concession contracts with ENEDIS, SÉOLIS, and GÉRÉDIS, including network modernization, extension, and security across 15,129 km of electrical lines.
• Service public gaz Public gas distribution service managed through concession holders GRDF for natural gas network development across the Deux-Sèvres department.
• Mobilité durable Sustainable mobility service including electric vehicle charging infrastructure deployment and Bio-GNV (biomethane) refueling station studies through subsidiary Selia Énergies.
• Programme électricité (Electricity Aid Program) Financial aid program for electricity network works including network burial, strengthening, securing, and new user connections for member communes within the SIEDS concession territory.
• Programme éclairage public (Public Lighting Aid Program) Public lighting financial aid program covering creation, renewal, security upgrades, astronomical clocks installation, heritage lighting, and LED retrofits for member communes.
• Programme rénovation énergétique des bâtiments publics

Quantifiable outcome

• 35% estimated savings on electricity bills for communes and EHPAD participating in collective self-consumption loops
• +4 more outcomes

Named customers7 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature3 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• ENEDIScoreChannel Partner/ Reseller/ DistributorENEDIS operates the electricity distribution network across the Deux-Sèvres department under a concession agreement with SIEDS. As the organizing authority, SIEDS controls and monitors ENEDIS's performance of delegated public service missions for electricity distribution.
• GRDF (Gaz Réseau Distribution France)coreChannel Partner/ Reseller/ DistributorGRDF manages the natural gas distribution network in Deux-Sèvres under a concession contract with SIEDS. SIEDS oversees GRDF's public service obligations for gas distribution development in the department.
• SEOLIScoreChannel Partner/ Reseller/ DistributorSEOLIS is a local electricity distribution company holding a concession from SIEDS. It is part of the SIEDS Group and manages electricity distribution missions delegated by the syndicate.
• GÉRÉDIScoreChannel Partner/ Reseller/ DistributorGÉRÉDIS is a local electricity distribution company holding a concession from SIEDS. It manages electricity distribution for 252 communes and 8 EPCI across the GÉRÉDIS concession territory within Deux-Sèvres. The territory encompasses 15,129 km of electrical lines and 249 connected renewable production units.
• Coop'Énergies79minorStrategic or Co-development PartnerCoop'Énergies79 is a cooperative involved in collective energy projects. SIEDS partnered with Coop'Énergies79 for the first collective self-consumption loop (boucle d'autoconsommation collective) project at the Échiré bowling hall, integrating photovoltaic production with municipal buildings and an EHPAD.
• CyberscopeminorImplementation/ SI/ Consulting PartnerCyberscope is a digital agency that collaborated with SIEDS on its digital accessibility initiative, helping achieve partial compliance (58.90%) with the RGAA 4.1.2 referential. Cyberscope is also credited for website conception (Mentions légales).
• DDT 79 (Direction Départementale des Territoires des Deux-Sèvres)coreStrategic or Co-development PartnerDDT 79 is the departmental directorate of territories working with SIEDS and all EPCI of Deux-Sèvres to accompany local authorities in complying with the Eco Energie Tertiaire (Décret Tertiaire) regulations. This includes organizing information sessions, video conferences, webinaries, and hands-on data entry assistance for the OPERAT platform managed by ADEME.
• ADEME (Agence de la Transition Écologique)coreStrategic or Co-development PartnerADEME operates the OPERAT digital platform used by assujettis ( obligated entities) under the Eco Energie Tertiaire decree to declare energy consumption data and track progress toward 40%/50%/60% reduction targets by 2030/2040/2050. SIEDS, DDT 79, and EPCI collaborate to support municipalities in using this platform.
• DREAL Nouvelle-AquitaineminorStrategic or Co-development PartnerThe Regional Directorate for Environment, Planning and Housing (DREAL) of Nouvelle-Aquitaine participated in information sessions organized by SIEDS and DDT 79 on the Eco Energie Tertiaire decree, contributing to the regulatory compliance support program.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Syndicat d'Énergie de la Vienne (SIEED 86): Departmental energy syndicate for the neighboring Vienne department in Nouvelle-Aquitaine, operating the same model of public electricity/gas distribution authority, financial aid programs, and group energy purchasing for member communes. Closely comparable structure and service portfolio.
• Syndicat Départemental d'Énergie de la Charente (SDE 16): Departmental energy syndicate for Charente, another Nouvelle-Aquitaine neighbor, executing the same authorizing-authority model for electricity distribution, financial subsidies for member communes, and renewable energy project support. Operates under the same Territoire d'énergie Nouvelle-Aquitaine umbrella as SIEDS.
• SYDER (Syndicat Départemental d'Énergie du Rhône): Departmental energy syndicate for the Rhône department, providing public energy distribution oversight, financial aid to communes, EV charging networks, and renewable energy programs — directly parallel to SIEDS but in the Auvergne-Rhône-Alpes region.
• SDESM (Syndicat Départemental d'Énergie de Seine-et-Marne): Departmental energy syndicate for Seine-et-Marne in Île-de-France, operating the same model of organizing authority for electricity distribution, public lighting subsidies, EV charging deployment, and group energy purchasing for member communes. Highly comparable structure to SIEDS.
• SDEEG (Syndicat Départemental d'Énergie et d'Environnement de la Gironde): Departmental energy and environment syndicate for Gironde, a Nouvelle-Aquitaine peer that combines energy distribution authority with environmental transition programs — directly comparable to SIEDS's expanded portfolio including PV self-consumption and collective self-consumption loops.

Broad incumbents

• ENEDIS: National incumbent electricity distribution operator (85% of French territory) that operates under SIEDS's concession. ENEDIS executes physical distribution works under SIEDS's oversight and represents a much larger scale and capability, but does not perform the local organizing-authority function SIEDS does.
• GRDF: National gas distribution operator that holds the gas concession contract with SIEDS for Deux-Sèvres. Operates at national scale while SIEDS retains local authorizing and oversight authority — relationship is contractual rather than competitive but capabilities overlap.
• RTE (Réseau de Transport d'Électricité): French national high-voltage electricity transmission system operator. SIEDS interfaces with RTE for transmission-level planning but RTE operates at a fundamentally different scale and scope (transmission, not distribution) — relevant as the upstream operator in the same value chain.

Others

• Territoire d'énergie Nouvelle-Aquitaine: Regional association of departmental energy syndicates in Nouvelle-Aquitaine, of which SIEDS is a member. Provides territorial coordination, representation, and shared services at regional level — not a competitor but a parent/administrative ecosystem organization.
• FNCCR (Fédération Nationale des Collectivités Concédantes et Régies): National federation representing local authorities that hold public service concessions for energy and water. Acts as advocacy and coordination body for SIEDS and similar syndicates at national level — not a peer but an institutional counterpart that shapes SIEDS's operating environment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC_AaFrsvqmPAv4nYolKEm8g
• Facebookfacebook.com/SIEDS.Energies
• LinkedInlinkedin.com/company/sieds
• Xx.com/sieds_energies

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries5 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 SIEDS