Econova · 2026

Agoris analysis · updated October 2026

Key takeaways

• "HERE, THE TERRITORY IS ACTING FOR TOMORROW": Econova is a B2B trade show devoted to the ecological and energy transition of local areas, designed for public, private and voluntary-sector players.
• Inaugural edition: the organiser presents Econova as "the new BtoB event dedicated to the ecological and energy transition of local areas". No previous edition is documented.
• Dates and venue: Wednesday 14 and Thursday 15 October 2026, at the Parc Expo Rennes Aéroport, Hall 10A, in Bruz (Rennes conurbation).
• Organiser: Alliance Expo, a company specialising in the organisation of trade shows. Exhibitor relations are handled by the event agency Opticom France.
• Three exhibition sectors: Future energies, Territorial planning, Sustainable buildings and construction.
• Programme: five round tables and around ten workshops over two days, with ADEME, Cerema, IGN, Météo-France, Rennes Métropole, SDE 35 and ENGIE.
• Visitor access: free badge on online registration, entry reserved for professionals.

Who exhibits

Typical profile

The offer is split into three sectors announced by the organiser. Future energies covers the production, distribution and use of renewable energy at local level: solar, biogas, geothermal, wind, methanisation, as well as financing and training. Territorial planning brings together the infrastructure, equipment and spaces that improve quality of life: soft mobility, urban comfort, biodiversity, outdoor leisure. Sustainable buildings and construction gathers together design, renovation and operation solutions for low-energy buildings: materials, technical equipment, smart systems, consultancy and financing.

In practice, the published list mixes renewable energy producers and installers, environmental consultancies, materials manufacturers, trade bodies and sector federations, mobility operators and public funders. The focus is regional, Brittany and western France, with a few national players and one international group.

Notable exhibitors

More than twenty exhibitors have already been announced on the official exhibitors page, including ENGIE, Banque des Territoires, Pigeon Entreprises, Novéa Energies (a RAGNI group subsidiary), Fichtner Management Consulting, IEL Études et Installations, Irisolaris, Solargie, EPC Solaire, Omexom Quimper ENR and Omexom Nantes ENR, Hoffmann Green Cement Technologies, CimBéton, the Syndicat National du Béton Prêt à l'Emploi, Fibois Bretagne, the Fédération Bretonne des Filières Biosourcées, the car-sharing association éhop, Guntamatic France, Espace Créatic, ATE, ATER Environnement, Aquassys Dol Forage, Aqualyo, Diatomée and Générations Renouvelables. The list continues to grow ahead of the opening.

Quality of the audience

As Econova is holding its first edition, no audience review is available and no attendance figures are communicated at this stage. The stated target is strictly professional: public players (local authorities, metropolitan areas, energy syndicates), businesses and associations involved in the transition. The make-up of the programme gives a useful signal about this positioning: Rennes Métropole, SDE 35, ADEME Bretagne, Cerema Ouest, IGN and Météo-France Ouest all speak on stage, which points the trade show towards local public procurement decision-makers as much as towards businesses.

Events & community

Conference programme

Content is at the heart of the format: five round tables and around ten workshops spread across the two days, free to attend for badged visitors.

The 14 October day opens with an ADEME workshop introducing calls for projects and green financing, led by Jean-Baptiste Le Dévéhat, who runs the Transition écologique des entreprises portal. This is followed by a round table on preparing businesses and local authorities for climate risks, with Denis Musard (deputy territorial director of Cerema Ouest), Jacqueline Roisil (regional director of ADEME Bretagne) and Clémence Noyau (climate change adaptation project officer at Rennes Métropole). The afternoon is structured around digital twins and 3D urban models, with IGN, Météo-France Ouest, Rennes Métropole and Naomis (Keran group), followed by a round table, "Construire et rénover pour durer" (Building and renovating to last), bringing together Batylab, the Fédération Bretonne des Filières Biosourcées, SCOBAT and E'NERGYS. Two technical workshops frame these sessions, one on the evolution of concrete in the face of climate change (CimBéton and SNBPE), the other on territorial digital twins as seen by Fichtner.

The 15 October day begins with a "Spécial Industries" breakfast led by Purecontrol on industrial energy optimisation through artificial intelligence, based on a Breton food industry use case. ENGIE then presents Enermap, its free-access mapping tool that aggregates more than twenty-five public databases to assess a territory's renewable energy potential. The morning's energy round table, "Sobriété sous tension" (Sufficiency under strain), covers collective self-consumption, flexibility and group purchasing with IEL, Rennes Métropole, ENGIE and SDE 35. The afternoon focuses on raw earth construction and the decarbonisation of shell and core work with Hylgéo (Pigeon group) and two architecture firms, before a final round table devoted to the respectful urban development of Breton towns and villages.

Community & networks

Econova runs a News section and a newsletter that carry content from its partners and exhibitors: Fichtner on the energy governance of local authorities, ADEME on the Breton "Mon parcours économies d'énergie" scheme, Banque des Territoires, éhop on the real drivers of car-sharing, and the Veolia barometer on ecological transformation in Brittany.

The trade show has a dedicated LinkedIn showcase page, the main channel for announcements between editions.

The format also sets aside informal moments: a networking drinks reception at the end of the morning on the first day, a networking slot after the opening, and a dedicated slot on the second day.

On site: what you need to know

The trade show is held in Hall 10A of the Parc Expo Rennes Aéroport, 2 La Haie Gautrais, 35172 Bruz. The venue has eleven modular halls in total, more than 54,000 m² of heated exhibition space and 8,000 free parking spaces. Access by car is via the Rennes ring road, exit 8 Porte de Saint-Nazaire. By public transport, bus line 13 serves the "Parc Expo" stop on weekdays and Saturdays, connecting with metro line b at Saint-Jacques Gaité. Rennes Aéroport is next to the venue, and Rennes station is around 1h30 from Paris by TGV.

At the trade show itself: opening at 9am on both days, with the Rennes Parc Expo listing giving a 9am to 7pm reception window, while the official programme runs from 9am to 5pm. The visitor badge is free and is booked online, to be printed or kept on a smartphone. The format fits within a single hall: one day is enough to cover all the stands and two to three conferences.

How much it costs to exhibit

Preparing your visit

For the exhibitor

• Go through the exhibitor contacts published by the trade show: Pauline Garrot (commercial2@opticom-france.com) and Florence Sey (florence.sey@opticom-france.com), both at Opticom France, the agency handling sales.
• Position yourself explicitly within one of the three sectors (energy, planning, building): this is the reading grid for the floor plan and the trade show's communication.
• Apply to run a workshop or a round table: for this first edition, a significant share of the programme slots is held by exhibitors (ENGIE, Fichtner, Novéa Energies, Fibois, Pigeon group, Purecontrol), making this the main lever for visibility.
• Plan a pitch geared towards local authorities: elected officials, technical departments and energy syndicates are within the stated target and on the programme.

For the decision-making visitor

• Book the free badge online before coming, then print it or save it on a smartphone.
• Build your route around the programme rather than the floor plan: over two days, round tables and workshops concentrate most of the value.
• Target the first day for climate adaptation, urban planning and building topics, and the second for energy, industry and low-carbon shell and core work.
• Block out the networking slots (Wednesday midday drinks, Thursday morning industries breakfast) to meet the public-sector players present.

Policy & CSR initiatives

No formalised CSR commitment is publicly documented for Econova. The trade show's website has no "Commitments" or "CSR" page, the event makes no mention of ISO 20121 certification, and the organiser Alliance Expo does not publish an accessible institutional website where a sustainability policy might appear. On the venue side, the Rennes Parc Expo, operated by the Pigeault group, likewise does not communicate any CSR approach or event certification on its website.

The distinction is worth stating clearly: ecological transition is the subject matter of the trade show here, not a verifiable internal organisational policy. The programme and the offer deal with renewable energy, biosourced materials, sufficiency and climate adaptation, but that says nothing about the footprint of the event itself. For a first edition, the absence of any stated scheme is a point to raise with the organiser rather than an established shortcoming.

How the trade show has evolved

Trajectory analysis

Econova is arriving in a niche that Brittany did not yet occupy in this form: a cross-sector B2B trade show that brings together energy, planning and building at the scale of the territory and local public procurement. The Rennes venue already hosts well-established professional events on neighbouring but more specialised segments, such as the Carrefour des Gestions Locales de l'Eau on the local authority side and Artibat on the construction side, while the renewable energy sector for western France gathers in Nantes at Bio360 Europe. Econova's bet is to bring these angles together around the territorial decision-maker rather than by trade.

Two unknowns will remain to be resolved after October 2026: actual attendance, which will determine the format's credibility with national exhibitors, and frequency, which no communication has specified to date. The starting base is nonetheless solid for a first edition: a full hall, more than twenty exhibitors announced, and a programme backed by leading public institutions, ADEME, Cerema, IGN, Météo-France and Rennes Métropole foremost among them.

Unless otherwise stated, all factual data in this listing comes from the organiser's official website (econova.ovh).