Energy Refurbishment Towards Nearly Zero-Energy Terrace Houses in the Mediterranean Region

The building sector in Europe is responsible for an estimated 40 % of the total energy consumption and 10 % of total CO2 emissions. Given an annual rate of 1 % of addition of new buildings in the existing building stock, the energy efficient renovation of the existing housing stock is imperative in order to reduce building energy consumption. It is for this reason that the European Union (EU) ranked the improvement of the energy performance of the old building stock as a high priority on its research agenda. Following Europe’s 20:20:20 objective, this case study investigates refurbishment scenarios that will make it possible to achieve nearly zero-energy buildings (nZEBs) in Cyprus.