Audit & Owner's engineering
Energy audit, specifications and support, before you invest.
In practice
- Consumption analysis
- Costed recommendations
- Specifications and site follow-up
- Technical mediation after a claim
Design, integrate, optimise, train.
From audit to measurable performance, we cover the full cycle.
BMS / BACS integration
KNX and BACnet building management systems, compliant with the BACS decree and the EPBD.
In practice
- Centralised real-time supervision
- Automated alerts and reports
- Predictive maintenance
- BACS and EPBD compliance
HVAC & Electrical
Heating, cooling, ventilation and electrical: design and optimisation.
In practice
- Thermal calculations and sizing
- Electrical diagrams and plans
- RGIE compliance
- Special techniques: fire, lifts
Training & Skills transfer
Teams trained to run their installations on their own.
In practice
- Smart buildings and smart management
- Home automation and KNX
- HVAC and renewable energy
- Electrical plans (AutoCAD) and fibre optics
Regulations mastered
The frameworks we apply every day.
The regulations we apply in the field.
- EPBD
- EPB
- BACS
- SRI
- RGIE / AREI
- PLAGE
- COBRACE
- Green certificates
- Guarantees of origin
Learn more
- EPBD
- EU Energy Performance of Buildings Directive (EU 2024/1275).
- EPB
- Regional transposition of the EPBD: energy performance requirements and certificates.
- BACS
- Building automation and control in tertiary buildings, classes D to A of EN ISO 52120-1.
- SRI
- Smart Readiness Indicator: how well a building makes use of digital technology and controls.
- RGIE / AREI
- Belgian General Regulation on Electrical Installations.
- PLAGE
- Local Energy Management Action Plan, Brussels-Capital Region.
- COBRACE
- Brussels Code of Air, Climate and Energy Management, the framework for PLAGE.
- Green certificates
- Support for renewable electricity production: solar PV, cogeneration.
- Guarantees of origin
- Proof of the renewable origin of the electricity produced.
Project management on demand
A one-off assignment or full follow-up.
Planning and coordination of your projects, with no long commitment.
Nexa tools
Our tools.
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Coming soon
NexaQuant
Simulate the savings before you invest.
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Coming soon
NexaInsights
Your building in real time: consumption, alerts, reports.
Let's talk about your building.
Audit, integration, training: tell us where you stand.