Paper Conference

Proceedings of uSim Conference 2018: 1st uSim Conference of IBPSA-Scotland

     

A NEW APPROACH PROPOSED TO EVALUATE THE COST OPTIMAL AND NEARLY ZERO ENERGY LEVELS OF BUILDINGS AND DISTRICT ENERGY SYSTEMS TOGETHER IN SETTLEMENTS

Ece Kalaycioglu, Ayse Zerrin Yilmaz

Abstract: European Union has published the directive on the energy performance of buildings (EPBD), first in 2002 and, then, in 2010, aiming to reach higher energy efficiency levels in buildings with a controlled effect on the economy. The second directive has introduced new terms as cost optimal and nearly zero energy levels and proposed a calculation methodology to evaluate the annual primary energy consumptions together with long-term energy-related costs (global costs). Following the terms of EPBD Recast and taking into account of the further energy efficiency targets of European Union for the years 2030 and 2050, in the study, it was aimed to study at settlement scale to reach higher energy efficiency levels for the building stock. In this way, building level energy efficiency measures and district energy system alternatives could be analyzed together. Thus, a new approach was proposed to calculate the cost-optimal levels of settlements, under the frame of EPBD Recast methodology. This calculation procedure was proposed as a decision-making tool for the settlement design development process. In the study, the proposed methodology was applied to an example settlement which is located in Eskişehir, Turkey. Several combinations of building energy performance levels and district energy systems were examined and compared for the optimal solution for the whole settlement. The results showed that, compared to the settlement consisting of nearly zero energy buildings, the cost-optimal buildings with district energy systems may have the same energy performance level with lower investment and global costs.
Pages: 71 - 78
Paper:
usim2018_022