Abstract :
This paper discusses the perspective of renewable energy (wind, solar, wave and biomass) in the making of strategies for a sustainable
development. Such strategies typically involve three major technological changes: energy savings on the demand side, efficiency
improvements in the energy production, and replacement of fossil fuels by various sources of renewable energy. Consequently, large-scale
renewable energy implementation plans must include strategies for integrating renewable sources in coherent energy systems influenced
by energy savings and efficiency measures. Based on the case of Denmark, this paper discusses the problems and perspectives of
converting present energy systems into a 100% renewable energy system. The conclusion is that such development is possible. The
necessary renewable energy sources are present, and if further technological improvements of the energy system are achieved the
renewable energy system can be created. Especially technologies of converting the transportation sector and the introduction of flexible
energy system technologies are crucial.