Reflections on the analyses of 100 percent renewable energy systems of this chapter are made with regard to principles and methodologies, as well as the implementation of renewable energy systems in Denmark and other countries.
From a methodology point of view, it can be concluded that the design of future 100 percent renewable energy systems is a very complex process. On the one hand, a broad variety of measures must be combined to reach the target, and on the other, each individual measure has to be evaluated and coordinated with the new overall system. Here, such a process has been implemented by combining a creative phase involving the inputs of a number of experts and a detailed analytical phase with technical and economic analyses of the overall system, providing feedback on the individual proposals. In a back-and-forth process, each proposal was formed in such a way that it combined the best of the detailed expert knowledge with the ability of the proposal to fit well into the overall system, in terms of technical innovation, efficient energy supply, and socioeconomic feasibility.
Based on the cases of the Los Angeles Community College district and Denmark, this chapter presented three studies on the challenges and perspectives of converting present energy systems into a 100 percent renewable energy system. The two studies of Denmark each includes two or three alternatives that are based on either biomass or wind power. The main data of all five alternatives are listed in Table 6.5. Seen in relation to the Danish case, the
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