Energy efficiency, finally guaranteed

Rising energy costs, operational constraints, regulatory requirements: your assets are under pressure.

Arbitrating, financing, and managing these projects is becoming complex. Powesco supports you with a structured, secure, and guaranteed approach.

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+ 150 M €

Energy efficiency project funding *

*With the support of the European Union

+ 60 experts

Team dedicated to your
energy performance

3 000 T CO₂

CO₂ avoided
thanks to the projects carried out

*Since 2025

A comprehensive approach, from strategy to performance

Learn more about Powesco

Powesco supports service and industrial companies in their energy efficiency projects — from the initial audit to the completion of the work, its financing through Energy Savings Certificates (CEE), and long-term performance monitoring. A single point of contact, measurable results, and a contractual commitment to savings.

As an independent player from the major energy companies, Powesco builds a tailor-made program for each client adapted to their facilities, their sector and their regulatory obligations (Tertiary Decree, BACS Decree).

They trust us

Offices

Profitability of assets

Improve the energy performance of your buildings and sustainably enhance their attractiveness and value.

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Health

Continuity of service

Make your facilities more reliable and improve energy performance while ensuring safety and continuity of care.

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Hospitality

Operating performance

Reduce energy costs while ensuring continuity of production and performance of your facilities.

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Logistics

Operational performance

Optimize the energy performance of your establishments while preserving the customer experience and level of service.

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Industry

Reliability of installations

Reduce energy costs while ensuring continuity of production and performance of your facilities.

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Community

Sustainable Heritage

Reduce your energy costs and enhance the value of your public assets while ensuring continuity of service.

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All our solutions

The ESCO model

The ESCO model, to secure and accelerate your energy projects

A model that combines financing, performance and a commitment to results

Discover the ESCO model

Achieve your projects without mobilizing your resources

Work financed by Powesco, cash flow preserved for your priorities, borrowing capacity intact.

Secure your energy savings

Powesco provides a financial guarantee on achieving savings, with gains visible over time.

Finance your renovations with the profits generated

Compensation for all or part of the financing costs by the savings generated.

Accelerate your decisions

Grouping all cost-saving actions into a single project, simplified decision-making thanks to a consolidated vision.

Take control of your projects with integrated expertise

In-house design office, comprehensive management and guaranteed energy savings

Step 1

Audit & Diagnostic

Identify the right levers

Complete analysis of your facilities, measurement of consumption and identification of potential savings.

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Step 2

Funding

Activate your projects quickly

Prioritized action plan with ROI, deadlines and CEE or ESCO financing solutions associated with each action.

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Step 3

Implementation

Manage your projects effectively

Prioritized action plan with ROI, deadlines and CEE or ESCO financing solutions associated with each action.

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Step 4

Optimization

Guaranteeing results over time

Prioritized action plan with ROI, deadlines and CEE or ESCO financing solutions associated with each action.

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Discover our approach

79,171 m² Area

ESCO 5-year contract

€5.8 million Amount funded

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

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

Industry Energy Audit HVAC BMS ROI 11 years

GE Healthcare — Design and Implementation

Measured impact

-15 % energy savings / year

-11 % carbon emissions

Read the full case

Latest news

Event July 2026

Energy Class Factory – Lyon

Powesco participated in the Lyon edition of Energy Class Factory, an event dedicated to industrial companies looking to accelerate the decarbonization of their sites. This day provided an opportunity to present our energy renovation solutions, and…

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Event July 2026

SIMI 2026 – Trade Show

At SIMI 2026, Powesco will be meeting with key players in the real estate sector to share its vision for the energy renovation of commercial buildings. Our teams will present their financing and guarantee solutions…

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Event June 2026

IBS – Intelligent Building Systems

For two days, Powesco will be participating in the IBS – Intelligent Building Systems trade show, the essential event for Smart Building professionals. Our teams will be presenting their BMS, energy control, and Energy Management solutions, while…

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Discover the news

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

Personalized support

Our experts will guide you towards solutions tailored to your energy challenges.

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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

What is an energy audit and is it mandatory for my business?

An energy audit is a comprehensive assessment of your energy consumption, allowing you to identify potential savings and prioritize your investments. It is mandatory every four years for companies with more than 250 employees or a turnover exceeding €50 million. Beyond the legal requirement, it is the essential starting point for any serious energy efficiency program.

How does financing through Energy Savings Certificates (CEE) work?

Does the BACS Decree apply to my building?

How long does it take to see the first savings after the work is completed?

Can Powesco guarantee the advertised energy performance?

Energy efficiency, finally guaranteed

A comprehensive approach, from strategy to performance

Approaches tailored
to each environment

Profitability of assets

Continuity of service

Operating performance

Operational performance

Reliability of installations

Sustainable Heritage

Comprehensive expertise to manage your energy performance projects from start to finish.

Audit & Engineering

Achievements

Performance monitoring & Energy management

Financing & Guarantee

The ESCO model, to secure and accelerate your energy projects