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NIS2 for energy companies in Belgium
Energy is listed in Annex I of the NIS2 directive. Large companies are essential entities; medium companies are important entities. In Belgium, the rules come from the NIS2 Law of 26 April 2024, applicable since 18 October 2024; the authority is the Centre for Cybersecurity Belgium (CCB), plus a sector authority for some sectors.
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Who is covered in this sector
- Electricity producers, suppliers, network operators, aggregators and storage operators
- Operators of EV recharging points serving end users
- District heating and cooling
- Oil, gas and hydrogen: production, storage, transmission, supply
Companies that only consume energy are not in scope because of that; a solar installer is not an energy operator (see the Cyber Resilience Act page if you sell connected devices).
The threats we see most in energy
- Ransomware that stops dispatching, billing or metering
- Attacks on remote access to substations, inverters or charging points
- Compromise through an OT maintenance supplier
- Phishing of control-room and field staff
Five priority measures
- 01 Separate office IT from operational technology (OT) networks
- 02 Inventory every remote access path and put MFA on it
- 03 Test offline backups of billing and control systems
- 04 Contractual security clauses with OT and maintenance suppliers
- 05 A 24-hour incident reporting routine tested once a year
What Belgium requires
- The law of 26 April 2024 has applied since 18 October 2024.
- Registration on Safeonweb@Work was due by 18 March 2025 (18 December 2024 for some digital providers). Not registered yet? Do it now.
- Essential entities had to complete a first conformity assessment by 18 April 2026 and must hold CyberFundamentals (CyFun®) or ISO/IEC 27001 certification by 18 April 2027.
- The CCB framework has three assurance levels — Basic, Important, Essential. Basic is recommended for suppliers of NIS2 entities that are not in scope themselves.
- Important entities are supervised after the fact (for example after an incident); a voluntary CyFun® or ISO 27001 assessment gives them a presumption of conformity.
Registration. Register on Safeonweb@Work (CCB). The general deadline was 18 March 2025 — late registrants should register now.
Significant incidents: early warning within 24 hours, notification within 72 hours, final report within one month. Fines set by the directive: up to €10 million or 2% of worldwide turnover for essential entities, and up to €7 million or 1.4% for important entities (whichever is higher).
Tools and guides
Energy in other countries
Other sectors in Belgium
Frequently asked questions
Is my energy companie company in scope of NIS2 in Belgium?
Energy is an Annex I sector. Large companies are essential entities; medium companies are important entities. Small companies are generally out of scope unless designated. Our NIS2 check gives you the answer in two minutes.
What should we do first?
Register if you are in scope, name an owner, run a short risk assessment, and fix the basics: MFA, tested backups, patching, incident routine.
We are a supplier to this sector. Does it affect us?
Yes, indirectly: your customers must secure their supply chain and will ask you for evidence. See our supplier questionnaire guide.
Sources
- CCB Safeonweb@Work — The NIS2 Law
- CCB — 18 April 2026 deadline for essential entities
- CCB — NIS2 Quickstart Guide
Last checked: 28 September 2026. This page is general information, not legal advice.
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