Potential of wind generators as additional source of energy in hybrid renewable energy systems located in Baltic region

Abstract

Study of the joint daily variability of wind speed and solar activity in the region of Gulf of Finland and its impact on renewable energy sources. The influence of external factors on the variability of total output power of ground-based wind turbines and solar photovoltaic panels is investigated. To a small extent, wind turbines are able to complement the generation of renewable energy sources: 15% –30% wind turbines and 70% –85% solar photovoltaics is preferable ratio of renewable energy sources. Comparing two similar climate regions in different scenarios lead economic feasibility strongly corelate with fuel prices. Standalone diesel generators can be quite effective at first, but in the long-term it is not viable solution due to fuel costs. Combined wind-PV renewable energy system is more profitable, but it has higher initial cost.