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Maxime GuillierMG

Maxime Guillier

Supermalter

Engineer - Entrepreneur - Renewable Energies

€990/day
7 projects
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Maxime

Specializing in renewable energies (PV, AgriPV, Methanization, Battery Storage), I am involved in both project development and strategic and financial aspects.

Experience in large groups as a developer/financier of renewable energy projects, as well as an entrepreneur in renewable energies.
Co-founder of 3 companies (PV, methanization, waste recovery and electricity storage by batteries).

Skills:

- Finance: financial modeling, financing structuring (equity, senior debt, junior debt), M&A transaction financing, building financial models

- Contractual: Mergers & Acquisitions, EPC, O&M, aggregation contracts, shareholder agreements, etc.

- Technical: Photovoltaics (ground, agriPV, floating), Battery Storage, Biomass, Biogas, EV/BioGNV charging stations
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Reims (up to 50km), Lille (up to 50km), Lyon (up to 50km), Marseille (up to 50km)

Experience

  • Consultant indépendant - Energies renouvelables
    Independent
    ENERGY AND UTILITIES
    July 2024 - Today (1 year and 11 months)
    Paris, France
    Consulting activities in:
    - Renewable energy project development (permitting, public consultation, land prospecting, sizing)
    - Project financing (debt and equity)
    - Development strategy (IPP, utilities)

    Technologies: photovoltaics, batteries (BESS), methanization (biogas/biomethane), biomass.

    References: TotalEnergies, NaTran
    Methanization Battery Photovoltaics Consulting Project Financing
  • Erione Energies (JV avec Axpo Group)
    Co-founder
    ENERGY AND UTILITIES
    June 2023 - Today (3 years)
    Tournan-en-Brie, France
    Battery electricity storage unit (BESS) in JV with the Axpo group.
    Technology: lithium iron phosphate.
    Capacity: 17 MW / 34 MWh

    Activities:
    - Land prospecting
    - Company development
    - Obtaining authorizations: building permit, grid connection (HTA PTF), opening of capital to the Swiss group Axpo, construction and operation monitoring.
    BESS Storage Battery Battery Storage Energy
  • Crédit Agricole Transitions & Energies
    Renewable Energy Project Finance
    BANKING AND INSURANCE
    June 2022 - June 2024 (2 years)
    92120 Montrouge, France
    Financing of renewable energy projects. Technical and financial expertise: due diligence review, financing structuring, critical analysis of technologies used, etc.
    Technologies: photovoltaics, wind, battery electricity storage (BESS), hydrogen, biogas/biomethane (methanization).
    Project Financing Biogas BESS Hydrogen Photovoltaics

Reviews

5.0

Out of 1 rating

J

Jean-Henri

Head of BESS - TotalEnergies Electricité et Gaz France

Reviewed on 1/14/2026

Mission = Financing of a portfolio of stationary battery projects. Consultation, competitive tendering, and negotiation of financing conditions. Maxime perfectly met expectations by demonstrating his knowledge of the sector, his expertise in the field, his involvement in the mission, and his ability to integrate into the team to work effectively with other internal stakeholders. Furthermore, Maxime has pleasant manners, accompanied by a very smiling attitude that fosters a good working atmosphere.

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Education

  • Specialized Engineer - Energies and Markets (Master's degree)
    IFP School
    2018
    Ingénieur spécialisé - Energies et Marchés (Bac+6)
  • Engineering Degree - Energies
    Institut national des Sciences appliquées de Toulouse
    2017
    Diplôme d'Ingénieur - Energies

Skill set

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