Energikartläggning av ett 1970-tals lägenhetshus på Skarpövägen i Nacka kommun
Simulering av energibesparande åtgärder i ?IDA Indoor Climate and Energy?
EnergiEnergiteknikEnergieffektiviseringEnergikartläggningEnergianalysIda iceIda indoor climate and energy
This study has been carried out in the spring of 2014 on behalf of PQR Consult AB in Stockholm. The aim of the study has been to analyse the energy usage of the building Skarpövägen 1 in order to explore the possibilites of saving energy by using appropriate equipment. These possible solutions have been simulated by using the programe IDA Indoor Climate and Energy, combined with a life cycle cost analysis. The laundry building, Skarövägen 23, has also been analysed due to its high amount of energy usage. The result of the energy analysis showed that the energy usage was much higher than the energy declaration. The energy usage of Skarpövägen 1 was 193 kWh/m2, which is 25 % higher than the energy declaration of 155 kWh/m2. Based on the energy saving actions, the most profitable investment would be to install heat recycling that would save 47470 kWh district heating per year with a pay-back time of 14 years. The results for the laundry building showed that there is a possibility to save up to 75% of the electricity usage by replacing certain equipment that is dependent on a high amount of energy. Throughout the whole analysis it has been clear that the energy usage in the buildings are higher than necessary. However, the energy saving actions have shown that there are ways to reduce the usage in the buildings. Some changes are simple to make while others would take longer, with varied pay-back time. In the long run those changes are vital for a sustainable reduction of energy usage.