Low energy buildings – the basis for realizing the strategy for independency of fossil fuels in 2050
Abstract
The paper introduces how low energy buildings can be developed, designed, optimized, constructed and operated in the future and thereby make a significant contribution to the realization of aim of the energy policy of EU: to become independent of fossil fuels in 2050. The paper describes how low energy buildings can become independent of fossil fuels in 2020 based on the following activities. Innovation of building components and systems with improved energy performance. Heating of low energy building with low temperature district heating based on renewable heat. Integrated design and optimization of low energy buildings. Continuous commissioning of low energy buildings with respect to energy use, indoor environment and durability. The very big and quick change of the energy performance of buildings is a challenge for the building sector but it can be solved by improving the methods of product developments as well as the methods of designing, constructing and operating buildings by including simulation based analysis and optimisation of solutions with respect to energy use and indoor environment as well as durability. The paper concludes that the development of low energy buildings without use of fossil fuels can be accomplished by the building sector by 2020. The building sector may in the process be transformed from an experience based sector to knowledge and research based sector with high quality sustainable products and very good business.