Analysis of Heat Pumps Operated by Solar Photovoltaic Systems for District Heating Systems in Lithuania
Abstract
More than half of all buildings in Lithuania are heated through the district heating systems. Biofuel, natural gas, oil and coal are the most popular fuels, and the usage of waste from incineration is growing rapidly. In smaller towns, boiler houses fired by coal or peat run the district heating systems Although the use of biofuels and gas is efficient, considered somewhat clean, and inexpensive but the use of polluting fossil fuels raises many questions. It poses a big challenge how a heat production system can be cost effective, low maintenance and environmentally friendly. This study aims to review and analyse the possibilities of using geothermal energy via heat pumps, and solar photovoltaic systems for heat production in district heating systems in Lithuania.