What Exactly Is the BACS Requirement?
The requirement stems from the European EPBD III Directive (Energy Performance of Buildings Directive) and is anchored in the Netherlands through the Building Works Living Environment Decree (BBL). In simple terms: buildings with heavy heating or air conditioning systems must be demonstrably managed intelligently and energy-efficiently. This applies to utility buildings—offices, schools, healthcare facilities, sports halls, shopping centers—with a nominal capacity of 290 kW or higher. Are you the owner of such a building? Then the responsibility lies with you, even if the building is leased.
What Must a BACS System Do?
A BACS is more than a thermostat with an app. The system must continuously monitor the energy performance of your installations, identify efficiency losses, and actively inform the manager about improvement opportunities. Additionally, it must be able to work with other building systems—regardless of brand or manufacturer. The performance requirements are set out in standard NEN-EN-ISO 52120. Concretely, this means: measuring, analyzing, and adjusting, with the goal of maximum comfort with minimal energy consumption.
The Pitfall: Thinking You Already Comply
Many buildings already have a building management system (BMS). But a BMS and a BACS are not the same thing. A BMS records and displays data; a BACS goes further and requires a more active, integrated approach where energy monitoring and building automation work together. The common mistake is assuming that existing systems automatically comply. In practice, this is often not the case. Failing to verify this in time risks a conversation with the municipality or regional environmental authority—they are the competent authorities for enforcement.
Looking to 2030: The Requirement Expands
The current 290 kW threshold is only the first step. From January 1, 2030, the BACS requirement applies to all utility buildings with heating or air conditioning systems of more than 70 kW. This affects a much larger portion of the Dutch real estate market. Moreover, the subsequent EPBD IV Directive stipulates that BACS systems from May 2026 must also be able to monitor indoor environmental quality—think CO2 levels, temperature, and humidity. The bar will be considerably higher in a few years than it is today.
Why This Is Also an Opportunity
Those who see the BACS requirement purely as an administrative burden miss the point. A well-implemented BACS delivers measurable benefits: lower energy costs, less unnecessary wear on installations, better indoor climate for users, and a future-proofed building. Cobra Climate helps organizations not only comply with legislation, but also to truly use the data the system generates. Not measuring for the sake of measuring, but measuring to drive results.
How Cobra Climate Helps You
We supply and implement BACS solutions that align with legal requirements and the practical realities of your building. From sensor and measurement infrastructure to a central platform where you have real-time insight into energy performance and indoor environment. We work with your installer or technical manager and ensure that your system not only meets requirements but also remains manageable. Curious where your building stands right now? Get in touch—we're happy to visit for a no-obligation assessment.