Energy-efficient sports hall with renewable energy production Retrofitting a sports hall in Landskrona

Sammanfattning: In today's society, much energy is used and all energy use (e.g. heat, electricity) affects the environment. Greenhouse gas emissions from energy affect the climate of the earth and increase the natural greenhouse effect. Environmental impact because of energy use causes both local and global problems. Efficient energy use in buildings is a prerequisite for dealing with climate issues and in the long term, securing our energy supply. Increased energy prices and major climate change make the issue of energy efficiency both economically and environmentally interesting. In this degree project, the possibility to refurbish a new sports hall to meet the nearly zero- and plus-energy requirements with today's construction technology is being investigated. The possibility was investigated for a sports hall in Landskrona. In order to be able to carry out energy retrofitting, an energy audit was realized. The first step was to realize an inventory of the building equipment. From this analysis, building behavior and energy use were modeled using IDA ICE simulation software. A comparison with real measured energy use showed reasonable agreement. Retrofitting by increasing the insulation of the building envelope was investigated as well as the possibility of adding solar energy. Each retrofit solution was evaluated calculating the LCC based on investment costs and energy savings. The results show that the addition of insulation materials to walls, roof and floor, adjustment of heating set point would have a significant impact on reducing the energy demand in the sports hall, also the result of calculations of energy use shows that it is possible to make a sports hall that meets the requirements of nearly zero and plus energy buildings and earn money at the same time if all of these measures have been implemented. The work is carried out as a case study.