Energ'iV société d'économie mixte locale / ENR

What Energ'iV société d'économie mixte locale / ENR does

Energ'iV is a Société d'Economie Mixte Locale (SEML) — a French semi-public company — headquartered in Thorigné-Fouillard, Ille-et-Vilaine, France, and operating as the dedicated renewable energy development subsidiary of SDE35 (Syndicat Départemental d'Energie 35), the public energy union of the Ille-et-Vilaine department. Founded in 2018, the company develops, co-invests in, and operates renewable energy assets across four technology verticals: ground-mounted and rooftop photovoltaic solar (83 plants, 33.15 MWc installed, 27.98 GWh produced in 2025), wind (notably the FEEOLE citizen-owned wind farm, 4 × 3 MW turbines, 35 GWh/year), agricultural methanization/biogas (Enerfées, Biogaz des Marches de Bretagne, Agri-Bioénergies units), and biomass district heating (Fougères, 32 GWh/year; Bain-de-Bretagne, 6.5 GWh/year). Beyond renewable generation, Energ'iV and its parent extend into public infrastructure: management of 83,000 public lighting points across 236 municipalities, gas distribution authority (AODG) over 38 communes and 3,950 km of network serving 210,470 delivery points, and operation of the Bea-Ouest Charge EV charging network (344+ public charging points).

The company's distinctive technical and methodological feature is its mandatory citizen-participation and territorial-consultation framework: every renewable energy project is co-developed with citizen energy cooperatives (Les Survoltés, Centrales Villageoises Rance Émeraude, CIREN) and agricultural partners, and structured as public-private joint ventures or SPVs where Energ'iV typically holds a minority stake alongside public co-investors (SEM SIPENR, Energie Partagée, Roche aux Fées Communauté). The Bretisun ISDND project (converting 6 former non-hazardous waste storage sites into a 16.4 GWh/year solar complex) and the Javené Solaire brownfield-to-PV project exemplify this model.

Energ'iV generates revenue through four streams: (1) long-term delegated public service contracts (20–25 years for district heating; 2050 horizon for the new grouped gas concession with GRDF); (2) sale of generated electricity and biomethane, often via PPAs to local off-takers and cooperatives; (3) managed-services fees from public lighting, gas distribution, and EV charging operations; and (4) transaction-based fees from the SDE35 energy group purchasing mechanism (€1/MWh contribution; 362 public members; 125 GWh/year electricity and 150 GWh/year gas aggregated). Following a €15 million capital increase completed in May 2024 and annual SDE35 investment budgets of €71M (general) and €6.3M (heating annex) for 2027, Energ'iV's primary customers are the 332 communes and intercommunalités (EPCI) of Ille-et-Vilaine, supplemented by social housing operators, healthcare facilities, schools, and retail sites that connect to district heating networks or host rooftop PV.

Name

Energ'iV société d'économie mixte locale / ENR

Legal name

Energ'iV société d'économie mixte locale / ENR

Website

https://sde35.fr

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Energ'iV is a French semi-public renewable energy developer (SEML) under the SDE35 union, building citizen-owned solar, wind, methanization, and biomass district heating projects across Ille-et-Vilaine, while also operating public lighting, gas distribution, and EV charging services for local municipalities.

Ownership category

akta.pro rank

Product category

Renewable Energy Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Solar Electric Power Generation (221114)

SIC

Electric, Gas & Sanitary Services (4900), Electric Services (4911)

akta.pro primary industry

Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE) (EUAMAFAJ)

Keywords

• Renewable energy development
• Public energy services
• Solar power projects
• Wind energy projects
• Biogas methanization

Headquarters

HQ city

Thorigné-Fouillard

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Revenue model

1. Delegated Service Public Contracts: Energ'iV operates as a delegated service provider for public energy services (district heating, public lighting, gas distribution) through long-term contracts (20-25 years) with municipalities. Revenue is generated through service fees, network operation charges, and energy sales to connected buildings.
2. Renewable Energy Generation and Sale: Energ'iV develops, co-invests in, and operates renewable energy installations (solar farms, wind parks, methanisation units). Revenue comes from the sale of electricity and biogas produced, often under long-term power purchase agreements (PPAs) with local off-takers including municipalities, businesses, and energy cooperatives.
3. Energy Group Purchasing Facilitation: SDE35 (parent) coordinates a group purchasing mechanism for energy (electricity and gas) serving 362 public members, charging a flat contribution of €1/MWh. This service drives volume and reduces costs for municipalities while generating fees.
4. Gas Distribution Management: As Authorité Organisatrice de la Distribution de Gaz (AODG), SDE35 manages gas distribution delegations across 38 communes, overseeing 3,950 km of network serving 210,470 delivery points. Revenue derives from concession fees and service management charges.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

Energ'iV is a société d'économie mixte locale (SEML) that develops renewable energy projects — solar, wind, methanization/biogas, biomass, and district heating networks — in Ille-et-Vilaine, France. It also delivers public lighting management, electric vehicle charging infrastructure, group energy purchasing, and oversight of gas distribution concessions for municipalities, intercommunalities, citizens, and other public/private entities.

Product overview

Energ'iV is a SEM (Société d'Economie Mixte Locale) that develops and operates renewable energy projects across Ille-et-Vilaine, Brittany. The portfolio includes photovoltaic solar farms (rooftop, ground-mounted, and parking canopies), wind farms (such as FEEOLE), methanization/biogas units (such as Enerfées), and district heating networks (Bain-de-Bretagne and Fougères). The company emphasizes citizen participation through cooperative structures and local governance, operating the BEA/Ouest Charge electric vehicle charging network and the Bretisun ISDND project converting former waste sites into solar installations. Products are delivered through public-private partnerships with ENGIE subsidiaries and citizen cooperatives including Les Survoltés, Centrales Villageoises Rance Émeraude, and CIREN.

Differentiator

Problem solved

Functional benefit

Brands

• Bretisun ISDND: Project to convert 6 former waste storage sites into photovoltaic parks - largest photovoltaic complex in Brittany
• Fougères Chaleur Renouvelable 35
• Bain Chaleur Renouvelable 35
• FEEOLE
• Javené Solaire
• Réseau Taranis

Products and services

• Solar PV project development

Quantifiable outcome

• In 2025, Energ'iV's 83 photovoltaic plants produced 27.98 GWh of renewable electricity
• +5 more outcomes

Named customers11 records

Segments3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

25 partnerships are on record, tiered core and minor.

• GRDFcoreTechnology or IntegrationGRDF is the gas distribution operator for the SDE35 territory. SDE35 acts as Autorité Organisatrice de la Distribution de Gaz (AODG) overseeing GRDF's operations. In January 2026, a new unified concession contract was signed covering 15 communes and over 600 km of network. GRDF handles construction, operation, maintenance, and network development, with commitments to develop bio-methane injection and support renewable gas production across the department.
• EnediscoreTechnology or IntegrationEnedis is the electricity distribution network operator in Ille-et-Vilaine. SDE35 acts as Autorité Organisatrice de la Distribution d'Electricité (AODE) overseeing Enedis's management of the electricity network on behalf of member municipalities.
• EngiecoreChannel Partner/ Reseller/ DistributorEngie was awarded lot 1 (principal) of the SDE35 group purchasing electricity contract for the 2026-2027 period, serving approximately 299 members and 8,300 sites with conventional green electricity options at 30% or 100% renewable guarantees.
• Enercoop BretagnecoreChannel Partner/ Reseller/ DistributorEnercoop Bretagne was awarded lot 2 (Haute Valeur Environnementale/HVE) of the SDE35 group purchasing electricity contract for 2026-2027. They provide premium HVE-certified green electricity to municipalities seeking high environmental standards.
• Total EnergiesminorChannel Partner/ Reseller/ DistributorTotal Energies was awarded lot 3 (Bloc+Spot) of the SDE35 group purchasing electricity contract for 2026-2027, offering flexible energy supply options.
• Gaz de BordeauxcoreChannel Partner/ Reseller/ DistributorGaz de Bordeaux was awarded the gas group purchasing contract for 2026-2028, covering 162 members across more than 1,500 sites. The contract includes options for green gas supply at 0%, 15%, or 100% renewable guarantees.
• Galileo Energies NouvellescoreStrategic or Co-development PartnerGalileo Energies Nouvelles (based in Carhaix, ex-QUENEA) is the developer of the Bretisun ISDND project, working with Energ'iV to convert 6 former waste storage sites into solar farms. Energ'iV pilots the project while Galileo handles technical development.
• Les SurvoltéscoreStrategic or Co-development PartnerLes Survoltés is a citizen energy cooperative active in Ille-et-Vilaine. They co-invest in renewable energy projects with Energ'iV and participate in citizen financing campaigns (e.g., Bretisun ISDND, FEEOLE wind farm, Javené Solaire). They serve as vehicle for citizen ownership and governance in projects.
• Centrales Villageoises Rance ÉmeraudecoreStrategic or Co-development PartnerCitizen energy cooperative (SCIC) partnering with Energ'iV on co-development and citizen financing of renewable energy projects including the Bretisun ISDND solar complex and FEEOLE wind farm.
• CIRENcoreStrategic or Co-development PartnerCIREN (Société Coopérative d'Intérêt Collectif) is a citizen energy enterprise partnering with Energ'iV on multiple projects including Bretisun ISDND and citizen investment campaigns. CIREN focuses on producing renewable energy rooted in citizen participation.
• Réseau TaranisminorStrategic or Co-development PartnerRéseau Taranis is a network of citizen energy collectives in Ille-et-Vilaine. Energ'iV and Taranis co-organised an inter-collective citizens meeting in February 2026 bringing together ~30 collectives and associations engaged in renewable energy development.
• Vensolair (Compagnie Nationale du Rhône)coreStrategic or Co-development PartnerVensolair is a 100% subsidiary of Compagnie Nationale du Rhône (France's largest 100% renewable energy producer). It co-develops 3 wind projects with Energ'iV: Lanrigan (environmental permit filed), Andouillé-Neuville (studies ongoing), and Saint-Malo-de-Phily (studies starting). Vensolair provides technical development, financing, construction, and operational expertise.
• ValecominorStrategic or Co-development PartnerValeco is a wind developer working with Energ'iV on the Ercé-en-Lamée wind project. Energ'iV manages citizen consultation and territorial governance while Valeco handles technical development.
• Qwello FrancecoreChannel Partner/ Reseller/ DistributorQwello France is the EV charging operator deploying public charging stations across 36 municipalities under the SDE35 SDIRVE scheme. The programme involves 54 stations with 143 charging points to be installed over 2 years, through a innovative grouping of public land owners.
• Bouygues Energies ServicescoreImplementation/ SI/ Consulting PartnerBouygues Energies Services installs and maintains public EV charging stations for SDE35/Bea-Ouest Charge network and solar canopies. They provide maintenance, supervision, and commercial operation services for charging infrastructure.
• Groupe Emeraude PartenairescoreChannel Partner/ Reseller/ DistributorEmeraude Partenaires supplies public EV charging stations (47 kW AC / 22 kW DC) to SDE35 and manages the charging network's commercial operation and billing.
• Omexom (VINCI Energies)coreImplementation/ SI/ Consulting PartnerOmexom serves as the project management contractor (maître d'œuvre) for the Bretisun ISDND construction works, coordinating subcontractors including Fajardo Energias Renovables for panel and structure installation.
• Fajardo Energias RenovablesminorImplementation/ SI/ Consulting PartnerFajardo Energias Renovables (based in Spain) installs structures and photovoltaic modules for the Bretisun ISDND solar complex, working as a subcontractor under Omexom's project management.
• Entech SmartminorImplementation/ SI/ Consulting PartnerEntech Smart designed and installed the 160 kWc (500 panel) solar system on the Liffré swimming pool's second roof, using 3 inverters for the autoconsumption installation.
• Roche aux Fées CommunautécoreStrategic or Co-development PartnerRoche aux Fées Communauté (EPCI) partnered with Energ'iV, SEM SIPENR, and Energie Partagée to acquire 60% of the FEEOLE wind farm project, ensuring the project's citizen and public character. The community joined the FDC collective alongside 168 citizen shareholders.
• SAS Terre des FéescoreStrategic or Co-development PartnerSAS Terre des Fées (55 farmers + Coopérative des Fermiers de Janzé) is the majority shareholder (61%) of Enerfées, the Janzé methanisation unit. Energ'iV co-developed and holds a stake in this agricultural biomethane project.
• SAS Agri-BioénergiesminorStrategic or Co-development PartnerSAS Agri-Bioénergies (10 farmers within 10 km radius) developed a methanisation unit at Bourg-des-Comptes with Energ'iV participation. The project produces renewable gas injected into the grid, certified at 16/20 on the SDE35 methanisation charter.
• SAS Biogaz des Marches de BretagnecoreStrategic or Co-development PartnerBiogaz des Marches de Bretagne operates the Maen Roch methanisation unit (inaugurated December 2023) with Energ'iV co-development. The project scored 13/20 on the SDE35 methanisation charter.
• FNCCRminorStrategic or Co-development PartnerFédération Nationale des Collectivités Coordonnatrices de Réseaux (FNCCR) is a national association of French energy unions. SDE35 participates in FNCCR events (annual congress), benefits from ACTEE programme funding for school energy education, and uses FNCCR frameworks for collective purchasing.
• AILEminorStrategic or Co-development PartnerAILE is a renewable energy association providing expertise to SDE35 for district heating feasibility studies (performed by CEP or AILE) and agricultural biomethane sector analysis. Contributed to the methanisation charter development.

Scale indicators15 records

Recent moves10 records

Expansion highlights7 records

Direct peers

• Valeco: French wind and solar developer partnering with Energ'iV on the Ercé-en-Lamée wind project. Directly comparable as a mid-sized French renewable developer pursuing similar wind/solar project economics, with Energ'iV adding citizen participation and territorial governance to the co-development model.
• Centrales Villageoises: Federation of citizen energy cooperatives that co-develops and co-finances renewable projects with Energ'iV (notably Bretisun ISDND and FEEOLE). Comparable in mission and structure: local cooperative ownership, territorial governance, and shared development of solar and wind assets with municipalities.
• Energie Partagée: National citizen investment fund that co-invested in the FEEOLE wind farm alongside Energ'iV and SEM SIPENR. It is a direct peer because it pursues the same citizen-financed renewable project model across France, sharing methodology, ethical charters, and cooperative governance principles with Energ'iV.
• SDE22 (Syndicat Départemental d'Énergie des Côtes-d'Armor): Public departmental energy union covering neighbouring Côtes-d'Armor in Brittany. Operates with the same Autorité Organisatrice model for electricity and gas, and is listed as a direct partner reference on SDE35's institutional website, making it the closest structural and geographic peer to Energ'iV/SDE35.
• SOREGIES: Société d'Économie Mixte Locale operating electricity distribution, public lighting, and renewable production in the Vienne department. Structurally the closest non-Breton SEML peer to Energ'iV — mixed public/private ownership, multi-energy services, delegated authority mandates, and renewable project development.
• Galileo Energies Nouvelles: Carhaix-based regional solar developer (formerly QUENEA) responsible for technical development of the Bretisun ISDND project alongside Energ'iV. Comparable as a regional French solar developer focused on Brittany and neighbouring regions, with Energ'iV contributing the citizen/territorial layer.
• Enercoop Bretagne: Brittany branch of the Enercoop cooperative network and a contracted supplier under the SDE35 group purchasing scheme (lot 2 HVE for 2026-2027). It is a direct peer because it operates the same citizen-cooperative model of renewable electricity supply that Energ'iV promotes through its cooperative partnerships.
• SDEF (Syndicat Départemental d'Énergie du Finistère): Public departmental energy union covering Finistère in Brittany. Shares the delegated authority framework for electricity, gas, public lighting, and energy purchasing; also referenced as a partner by SDE35, making it a near-identical peer in mandate, scale, and operating model.

Broad incumbents

• ENGIE Solutions: Major French energy services company whose subsidiaries (Bain Chaleur Renouvelable 35, Fougères Chaleur Renouvelable 35) are the delegation holders for Energ'iV's two anchor district heating networks. Comparable as a large-scale partner in renewable heat infrastructure delivery, though structurally a private incumbent rather than a public SEML.
• Compagnie Nationale du Rhône (CNR): France's largest 100% renewable energy producer and parent of Vensolair, Energ'iV's strategic wind co-development partner on Lanrigan, Andouillé-Neuville, and Saint-Malo-de-Phily projects. Comparable as a renewable developer operating in the same French regions, but at vastly larger scale and broader national scope.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/SyndicatDepartementalEnergie35
• LinkedInlinkedin.com/company/energiv
• Instagraminstagram.com/_sde35_

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries12 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 Energ'iV société d'économie mixte locale / ENR