Based on the provided data, the year-on-year variations in percentage are:
- 2025: -6.85%
- 2026: -6.93%
- 2027: -7.91%
- 2028: -8.08%
The Compound Annual Growth Rate (CAGR) over the next five years (2024-2028) is approximately -7.47%. This indicates a steady decline in solar thermal energy supply in Denmark.
Future Trends to Watch: Given this downward trend, it will be crucial to monitor policy changes, advancements in solar technology, and investments in renewable energy infrastructure that may reverse this decline or potentially introduce more efficient alternative renewable energy sources.