Energy evaluation of school buildings

Building energy performance evaluation depends on energy performance indicators as total primary energy, balance of renewable and non-renewable primary energy, total energy delivered into buildings, partial energy supplied for building technical systems for heating, cooling, ventilation, humidity treatment, hot water and artificial lighting. The assessment can also include the evaluation of the thermal insulation of the building envelope, the specification of the average heat transfer coefficient, the energy labelling and finally the specification of the effectiveness of building service technical systems. The optimization of the energy renovation of buildings is based on building cost/performance analysis of sustainability and energy efficiency. The paper presents a study of the energy evaluation of several school buildings in Central Europe. The buildings are representatives of different types of school buildings constructed during the 20th century. The studied buildings are currently energy inefficient. Solutions to for the renovation of the buildings in terms of energy savings and indoor thermal comfort are presented.