The researchers looked at how changes in energy use affect energy efficiency in Finnish school and daycare buildings. They wanted to see if different ways of measuring efficiency could give better guidance on saving energy in buildings. By studying various energy indicators, they found that using different measures can lead to different results in energy efficiency. They discovered that by investing in technical changes or adjusting building systems based on how occupied the building is, energy savings can be achieved. The study suggests that using alternative indicators could help users make buildings more energy-efficient by accurately reflecting energy use in the real world.