engleski

Stepping up the penetration of renewables against infrastructural and financial barriers - Costs of wind and PV integration

While RES contributes to a decrease of the environmental impact (especially GHG emissions) and to an increase in self-sustainability of national energy systems, many aspects of the power system are affected by the increased share of such sources. Forecast of increased capacity of variable renewables also requires greater energy storage capacity and new technologies to address grid- stability issues when renewable power sources replace thermal power stations. The integration of variable renewable energy sources into energy systems is connected to the system flexibility as it is necessary to ensure balancing between demand and supply. There are four main sources of flexibility in current power systems: flexibility in generation units, electricity storage, interconnections and demand side management. Large use of RES (wind and Sun) results in unique problems that lead to a higher cost of their integration in the power system.

Wind power ; PV ; Direct costs ; System costs ; Macroeconomic impact

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