GTB

GTB — Building Technical Management 

Reduce your energy consumption sustainably through intelligent management of your equipment. Powesco deploys, configures, and optimizes your building management system (BMS) to improve the performance of your buildings, ensure your compliance with the BACS Decree , and detect deviations in real time. 

Request a GTB quote Our domains
  • Compliance with the BACS Decree
  • 20–35% HVAC savings
  • ROI < 2 years

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01 84 19 86 88 Mon–Fri · 9am–6pm

⚠️ BACS Decree: Since January 1, 2025, all commercial or industrial buildings >290 kW must be equipped with a certified automation system. Powesco deploys and certifies compliance.

OUR AREAS OF EXPERTISE

GTB HVAC Insulation Relamping LED Photovoltaic Charging stations

WHAT IS THIS

Building Management Systems (BMS): The fastest way to reduce your HVAC consumption 

In practice

  • For whom?

    Any commercial or industrial building with HVAC — new or old

  • Savings

    20 to 35% on the HVAC item without equipment replacement

  • Deadline

    4 to 10 weeks depending on the size of the site and the complexity of the systems

  • Guarantee

    Contractual performance — savings are stipulated in the contract

Building management systems (BMS) allow for the automation and optimization of the operation of a building's technical equipment: heating, ventilation, air conditioning, lighting, and even solar protection. 

In many buildings, equipment continues to operate outside of occupied periods or according to parameters that have become unsuitable. Building management systems (BMS) allow you to regain control, improve operations, and quickly generate measurable savings. 

Powesco deploys, configures and monitors solutions tailored to your actual uses while ensuring regulatory compliance and performance monitoring. 

  • Automation of time slots based on actual occupancy
  • Zone-by-zone temperature control
  • Real-time deviation detection via SEME (Energy Management Expert System) NEXTEP
  • Compliance with the BACS Decree with regulatory evidence file
  • Multi-site monitoring from a single interface

What the Powesco GTB brings

  • 20–35%

    savings on the HVAC item

  • < 2 years

    average post-deployment ROI

  • BACS

    evidence file included

  • Multi-site

    SEME NEXTEP unified supervision

What does this change in concrete terms?

From passive consumption to controlled driving 

Without Powesco
  • Your HVAC equipment runs at night and on weekends — nobody knows it
  • Your time slots are based on the installation date, not your current usage
  • In the event of a BACS inspection, you will have no evidence file
  • You don't know in real time if a piece of equipment is drifting or malfunctioning
  • You are subject to your HVAC consumption without being able to do anything about it
With Powesco
  • HVAC consumption reduced by 20 to 35% — without changing a single piece of equipment
  • Beaches and guidelines recalibrated to your actual usage, updated in real time
  • Complete BACS evidence file ready to be submitted to the administration
  • Automatic alerts in case of drift — detection within 24 hours via SEME NEXTEP
  • Active control from a single interface — single or multi-site
David Peissel

David Peissel

Technical Director at Powesco

THE EXPERT'S WORD

Building management systems (BMS): the most underestimated source of savings in commercial buildings 

In most of the buildings we audit, the initial savings come not from replacing equipment but from managing it. A properly configured building management system (BMS) often delivers rapid results without major construction work or business interruptions.

Our Solutions

Other areas of achievement

HVAC — Heating, Ventilation, Air Conditioning

HVAC — Heating, Ventilation, Air Conditioning

Replacement or modernization of your boilers, heat pumps, air handling units, and ventilation systems. Low-carbon solutions. Guaranteed service on occupied premises. Proven savings: 15 to 40%.

Learn more
Insulation

Insulation

Thermal assessment, definition of solutions and tailored work plan. Triple insulation, external thermal insulation and treatment of critical points. Available financial assistance.

Learn more
LED Relamping

LED Relamping

Photometric study, selection of suitable lighting fixtures, and installation without business interruption. 50 to 80% savings. Financial assistance available through Axioris.

Learn more
Photovoltaic installation with battery storage system

Photovoltaics

Turnkey installation, connection and supervised commissioning. Self-consumption, sale or storage depending on your profile. Integrated ADEME subsidies.

Learn more
Charging stations

Electric vehicle charging stations

Load study, certified EV charging infrastructure installation, smart charging, monitoring and billing. Compatible with renewable energy sources. Deployment in 4 to 8 weeks.

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

Yes, if the nominal heating or cooling output exceeds 290 kW. The deadline for existing buildings was January 1, 2025. Powesco conducts the compliance audit and deploys the required system.

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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