1 Subjects: “...solar thermal energy conversion...”

2 Subjects: “...renewable energy...”

3 Subjects: “...renewable energy...”

4 Subjects: “...renewable energy in the context of climate change and global energy resources...”

5 Subjects: “...renewable energy in the context of climate change and global energy resources...”

6 Subjects: “...ocean renewable energy...”

7 Subjects: “...renewable energy...”

8 “... the increasing use of renewable energy, the overall energy supply is dominated by fossil fuels. For a long period...”

9 “... the increasing use of renewable energy, the overall energy supply is dominated by fossil fuels. For a long period...”