Solceller och batterilagring i HFABs klimatsmarta flerbostadshus

Sammanfattning: The degree project was carried out in collaboration with Halmstad Fastighet AB. Two separate buildings with different uses of energy have been analyzed. The focus was on evaluating near-zero energy houses with solar power plants and associated battery storage to investigate profitability and dimensioning to form the basis for future constructions. Both properties are near-zero energy houses but differ in the use of electrical energy. It is currently unclear how the change in the dimensioning of the solar power plant and the battery storage will affect the profitability of two properties with different uses of energy. The method was quantitative. Simulation models in the Polysun software were created with the properties' reference house. Based on the simulations, profitability calculations were made to describe the difference in profit when changing the dimensioning. The work concludes that the total profitability increases with the size of the solar power plant, regardless of energy use, and battery storage is not profitable without price changes.