Sustainability of grid-tie micro-generation system

Both the outcomes of technical and economical feasibility analysis of a renewable based power system should be positive to achieve sustainability. Energy production or Renewable Energy Feed-in-Tariff (REFIT) cost should be lower or higher respectively than the existing grid electricity cost. As the renewable energy sources are variable and where REFIT is also applicable for the system connected to the grid, the detailed hourly time series analysis is very important. Based on this issue, in this paper, a techno-economic feasibility analysis has been performed for a PV based micro-generation system to find out the possible ways to make the micro-generation (μGen) system sustainable in low irradiation region. As a case study, the city of Dublin, Ireland has been chosen for the detailed analysis. Analysis shows how the technological improvement can help to popularize the μGen system in Ireland. The procedure can be followed by other countries as well.