What is energy rating A?
The energy rating goes from A (best) to G (worst) and tells you how energy-efficient a building is. Buildings rated A use significantly less energy than a standard office building and are built or refurbished to the strictest requirements in the building regulations.
For an office building, that means a well-insulated envelope, energy-efficient ventilation with heat recovery, demand-controlled lighting and renewable heat sources such as geothermal heating or a heat pump.
What does it mean in practice for the tenant?
- Lower shared costs. Less energy for heating, cooling and ventilation means lower monthly operating costs.
- Better indoor climate. Modern ventilation with humidity and CO₂ control gives fresher air and happier employees.
- Stable thermal environment. Good insulation and solar shading provide an even temperature year-round – no cold draughts or overheated meeting rooms.
- Clear environmental profile. An A-rated building is concrete documentation of sustainability in the company's reporting and tenders.
- Future-proof. EU taxonomy and demands from customers and lenders keep tightening – an A-rated building stands the test of time.
Energy rating A at Knarrevik Business Park
The office building at Knarrevik Business Park on Sotra is a low-energy building with energy rating A. The building uses geothermal heating for both heating and cooling, has demand-controlled ventilation and LED lighting throughout.
That means your business gets modern, efficient premises with lower operating costs than a standard office building – without compromising on comfort.
See which energy-efficient offices are available right now.



