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Junzhe SunJS

Junzhe Sun

Decarbonization & CO2 Analysis Consultant

€180/day
Toulouse, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Junzhe

Industrial decarbonization consultant, I help companies identify the most effective levers to reduce their emissions and optimize their energy costs.

In a few days, I provide:
– CO2 emissions estimation (scope 1-3)
– Identification of the most emitting sources
– Comparison of scenarios (electrification, hydrogen, gas, energy efficiency)
– Initial CAPEX / OPEX estimation

Deliverables: Excel/Python model + clear summary for decision-making.

Specialization: hydrogen, industrial processes, energy systems.
  • French

    Native or bilingual

  • English

    Fluent

  • Chinese

    Native or bilingual

Can work on-site
Toulouse (up to 50km)

Experience

  • Laboratoire de Génie Chimique,
    R&D Engineer - Hydrogen & Energy Systems
    ENERGY AND UTILITIES
    October 2022 - October 2025 (3 years)
    Toulouse, France
    – Development of a techno-economic model for electrolysis (performance, costs, energy consumption)
    – Scenario analysis for cost optimization and emission reduction
    – Translation of technical results into decision-making indicators (CAPEX, OPEX, ROI)
    – Contribution to collaborative projects with industrial partners

    👉 Result: ability to quickly assess the feasibility and profitability of hydrogen projects
    Techno-economic Risk Analysis Budget Management & CAPEX/OPEX Control Carbon Footprint
  • Institut de mécanique et d'ingénierie,
    Modeling Engineer - Energy Storage
    ENERGY AND UTILITIES
    March 2022 - August 2022 (5 months)
    Bordeaux, France
    – Modeling of thermal energy storage systems (phase change materials)
    – Performance analysis and identification of critical parameters
    – Support for system optimization (energy efficiency, sizing)

    👉 Result: improved understanding of energy performance levers
    Modeling Python Performance Analysis
  • SUEZ
    Process Engineer / Simulations
    ENVIRONMENTAL
    July 2021 - September 2021 (2 months)
    Suzhou, JS, China
    – Simulation of industrial processes (acid gas treatment)
    – Equipment performance analysis (absorption column)
    – Interaction with field teams (processes, maintenance, instrumentation)

    👉 Result: contribution to the optimization of industrial operations
    Process Optimization Process Modeling

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Education

  • PhD
    Chemical Engineering Laboratory
    2025
    Doctorat
  • Engineering Degree
    ENSGTI
    2022
    Diplôme d'Ingénieur –

Skill set

Categories