| Abstract [eng] |
In this final master thesis energy supply options for autonomous settlement are considered. Autonomous energy supply can only be achieved by using local renewable energy sources. Therefore review of renewable energy potential of Lithuania was accomplished. Settlement‘s model was developed on the basis of statistics on areas of housing and institutions, which must be on a such size of a city, and therefore structure of energy consumption of this settlement is close to mid-sized Lithuanian city‘s energy consumption. Simulation over time of heat and power demand was accomplished in order to determinate heat and power demand in each hour during the year. 5 energy supply systems with different level of autonomy were selected. First option – village is supplied with electricity from national grid and heat is produced in natural gas-fired boiler. Combinations of CHP, biomass and gas-fired boilers and wind turbines are installed in other systems. Systems are evaluated form technical, financial and socio-economic point of view. In technical assessment operation modes of installed technologies and their abilities to provide energy for autonomous settlement are evaluated. Financial evaluation was made by calculations of simple payback time and net present value by comparing remaining options with the first one. Socio-economic assessment was made by evaluating import/export balance and employment analysis. |
