Calculate energy consumption; investigate alternative energy and renovation opportunities for a villa is the main purpose of this thesis.

The calculation processes contains both hand calculation and IDA-ICE building energy modelling simulation. After validation for both hand-calculation and modelling simulation results, several energy investigations are done in the villa: introducing of heat pump, sol energy, district heating etc. for energy opportunities. Meanwhile, some building renovation suggestions for construction improvement are also introduced to reduce the energy consumption. At the end of the result part, the author combines different energy and renovation methods to improve the energy performance of villa. The result shows that, the villa has good energy potential to meet the BBR standard. And the investment for renovation is acceptable.

LCC analysis is also considered during the investigation and renovation processes. That makes the results of investigation and renovation become more convincible and more economically.

The discussion and conclusion part, the author make a conclusion about different renovation method, meanwhile the author also discuss about the advantage and disadvantage of the thesis, which will make the author improve in the future project.