The rules are being introduced in stages
The EU’s Energy Performance of Buildings Directive, EPBD, is now being implemented in Sweden. Boverket’s new rules on energy efficiency and energy performance certificates apply from 1 October 2026. There is a transition period for the energy efficiency rules, with some exceptions. Energy performance requirements for existing non-residential buildings will also be introduced from 1 January 2030. Boverket’s information on the new rules (in Swedish).
This makes it worth reviewing the portfolio with an energy expert now: which buildings are affected, what needs improving and which measures can be coordinated with planned maintenance?
Energy classes need to be read in context
The new rules change both the calculation of energy performance and the classification. An older energy performance certificate is therefore not fully comparable with one issued under the new rules. Existing certificates retain their ten-year validity and do not need to be replaced solely because the rules have changed. Boverket on energy performance certificates (in Swedish).
In Sweden, A0 is used for buildings that meet the criteria for a zero-emission building. The assessment covers energy performance, the combustion of fossil fuels on site and the ability of the building’s technical systems to respond to external signals. Boverket on energy class A0 (in Swedish).
The control system’s functions matter
Existing buildings that are mainly used for non-residential purposes and have heating or air-conditioning systems with a rated output above 290 kW are subject to requirements for control functions. These include monitoring and analysing energy use, detecting losses in efficiency and monitoring indoor conditions. The rules allow adjustments under certain circumstances. Boverket’s regulations, chapter 4 (in Swedish).
A review therefore needs to establish which functions the building’s control system actually has and what needs to be added.
Look at what the existing equipment could do better
A building can use energy unnecessarily even when the equipment is working. Airflows and temperatures may be higher than the activities in the building require for parts of the day. Adjusting the controls offers an opportunity to reduce costs.
This is the part Sally R works on. We use building measurements to continually adapt airflow and temperature setpoints through the existing control system.
How far this will take you needs to be assessed for each property. Better control can be combined with improvements to the equipment or building envelope. Examining how the building operates gives you a better basis for deciding what to do, in what order and at what cost.
