Photovoltaic roof / storage

Photovoltaics, storage & electric mobility 

Evaluate the energy and financial potential of your assets with a comprehensive feasibility study. Our experts analyze the most effective scenarios to reduce your energy costs and accelerate your decarbonization journey.

Request a study Our expertise
  • 20-year simulation
  • Funding sources identified
  • ROI guaranteed before signing

Request a feasibility study

An expert will call you back within 48 hours — no obligation

  • Response within 48 business hours
  • No commitment
  • Confidential data

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01 84 19 86 88

OUR AUDIT EXPERTISE

Energy audit, BMS audit, HVAC audit , PV, Storage & Charging Station study, Decarbonization / CSRD

WHAT IS THIS

A comprehensive study before any investment 

In practice

  • For whom?

    Industrialists, real estate companies, asset managers, local authorities and service sector players.

  • Perimeter

    Photovoltaics, battery storage, and charging infrastructure.

  • Duration

    3 to 5 weeks depending on the complexity of the project.

  • Result

    Complete feasibility study, financial analysis and deployment roadmap.

Before starting any project, it is essential to accurately assess its technical and economic potential. Powesco analyzes your site, your consumption patterns, and your objectives to identify the most relevant and profitable long-term scenarios. 

  • Analysis of the site's energy potential
  • Study of self-consumption and valorization scenarios
  • Multi-scenario financial simulations
  • Identification of available aid and funding
  • Supported investment recommendation

What our studies reveal

  • –41%

    electricity bill for self-consumption

  • 6–10 years

    average return on investment

  • 20 years

    linear warranty of the panels

  • 100%

    turnkey solution from study to monitoring

Why Powesco

What differentiates our approach

Three concrete commitments — not sales pitches.

  • 01

    Total independence from equipment manufacturers

    We do not resell any equipment. Our recommendations are guided solely by their profitability — not by our margins on panels or
    inverters.

  • 02

    A decision-making document, not a quote

    You receive a 20-year financial simulation with several costed scenarios. When do you take action? The decision is yours.

  • 03

    From the initial study to commissioning: a single point of contact

    When you take action, Powesco manages the entire project — administrative procedures, installation, connection, monitoring. Guaranteed continuity between phases.

Ahmed BOUCHRIHA

Ahmed Bouchriha

Head of Solar Design Office at Powesco

THE EXPERT'S WORD

Photovoltaics :profitable when properly sized 

A successful photovoltaic project begins with a rigorous feasibility study. Analysis of energy consumption, production potential, self-consumption rate, and profitability: each parameter is precisely evaluated to develop a project tailored to your site and objectives. The decision is thus based on precise figures and objectively quantified gains. The decision must be based on accurate data, not optimistic projections.

Our Solutions

Other areas of expertise: Audit & Engineering

Energy audit for businesses

Energy audit

Comprehensive analysis of your energy consumption, usage mapping, and a prioritized action plan with ROI for each measure. Compliant with the Energy Directive 2012/27/EU.

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Man & Woman in front of a checkpoint

GTB Audit

Diagnose your automation systems, identify deviations and non-conformities, and provide you with a BACS Decree compliance plan with quantified gains.

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Technician performing an HVAC audit on a building installation

HVAC Audit

Complete diagnostic of your heating, ventilation, and air conditioning equipment. Identification of overconsumption and modernization plan with ROI.

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Decarbonization & CSRD

Decarbonization & CSRD

Carbon Footprint Scope 1, 2, 3. Emissions reduction plan, SBTi trajectory, CSRD-ready extra-financial reporting and ISO 14001 compliant.

Learn more

Our references

Concrete projects,
tailored to each context

Discover projects similar to yours, classified by sector and type of intervention.
See all our references
EQHO Tower — Paris La Défense
La Défense (92) • 40 floors
HVAC Energy Management GTB offices

EQHO Tower — Paris La Défense

Energy performance as a lever for profitability

Complete energy transformation of a 79,200 m² office tower with €5.8 million in financing over 5 years. Deployment of an advanced building management system and HVAC optimization to maximize performance without compromising comfort.

Challenges

Improve the energy performance of the tower while optimizing operating costs without impacting occupant comfort.

Work completed

• Deployment of an advanced building management system (BMS)
• Optimization of HVAC systems
• Comprehensive energy audit

Measured impact

-24 % energy savings / year
-32 % carbon emissions
Read the full case
Franklin Tower — Paris La Défense
Offices Energy Audit HVAC BMS

Franklin Tower — Paris La Défense

Measured impact

-37 % 5,950 MWh of energy savings per year
-32 % carbon saving
Read the full case
Mercure Courbevoie — La Défense Hotel
Hospitality GTB Relamping

Mercure Courbevoie — La Défense Hotel

Measured impact

-21 % energy savings / year
-29 % carbon emissions
Read the full case

Other projects in the sectors: health, hospitality, logistics, industry, local authorities.

See more projects

Frequently Asked Questions

Frequently Asked Questions

Do you have an energy efficiency project, questions about financing or regulatory obligations? Our experts are here to help.

Speak to an expert

Eligibility depends on the orientation, pitch, solar shading, structural strength, and condition of the roof. Powesco conducts a preliminary analysis based on plans and satellite imagery before the site visit. We explore alternatives if the roof is unsuitable: parking lot canopies, ground-level installations, or facade installations.

Do you have any questions? Contact our team

CONTACT US

Let's build your energy project together

Need help with your project?

Customer service available
Monday to Friday from 9am to 12pm

01 84 19 86 88
contact@powesco.fr

Head office

77, rue Marcel Dassault -
92100 Boulogne-Billancourt

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