Käyttökertoimet

Käyttökertoimet are multipliers used in Finnish building regulations to adjust energy performance calculations. They are a crucial element in determining a building's energy efficiency rating, particularly concerning heating energy consumption. These coefficients are applied to different energy sources and consumption types to account for their varying efficiencies and societal impacts. For instance, electricity typically has a higher käyttökerroin than district heating due to differences in energy production and distribution losses.

The purpose of käyttökerroimet is to provide a standardized and equitable way to compare the overall energy performance of buildings that may utilize different heating and hot water systems. By using these multipliers, the regulatory framework can incentivize the use of more efficient and environmentally friendly energy sources. They are not a direct measure of the energy consumed, but rather a factor used in the calculation of the final energy performance index.

The specific values of käyttökerroimet are defined by Finnish legislation and can be updated over time as energy technologies and policies evolve. Building designers and energy auditors must be familiar with the current käyttökerroimet to accurately assess and certify a building's energy performance. This ensures that new constructions meet the required energy efficiency standards and contribute to national energy conservation goals.