Source: Energy & Management Powernews, 06 September 2022
Nuremberg is Germany's solar capital - Hamburg brings up the rear. This is the result of an evaluation of the green electricity provider Lichtblick.
The Lichtblick Solar Check records the ratio of the area of newly constructed photovoltaic systems to the newly built roof areas. The solar factor determined in this way shows how ambitiously the expansion is being pursued in the individual metropolitan areas. The company rates the result as moderate: In 9 of 14 examined metropolises the solar factor lies under 50%.
On average, less than half of the potential of new roof areas is developed, in the worst case it is even only 10%. "More shadow than light - especially in view of the ambitious solar energy plans of the federal government," says a statement from Lichtblick.
The differences, however, are enormous. Nuremberg pushes itself with a solar factor of 69.2% (2021: 44.3%) to the top and is thus nationwide the solar leader. Cologne lies as already in 2021 on the second place (63,6 %), last year's winner Essen slips on rank three (59,6 %).
The large metropolises Munich (place 13 with 20,8 %) and Hamburg (10,1 %) cut off particularly disappointingly - the Elbmetropole is even for the third time in consequence tail light of the solar check. In contrast, Berlin, has clearly improved: 10th place with 27.9 %. "Unfortunately, the energy turnaround is only arriving very slowly in the metropolises - too slowly. Thus much potential is given away, which we need just now bitterly", explained in addition Corine Veithen, climatic policy expert with Lichtblick.
There is no lack of new surface by the way: Compared with the previous year German metropolises register a new building boom. The growth of the new building roof surfaces was particularly strong in Hamburg, Munich, Berlin and Frankfurt - all cities in the lower half of the Ranking. So more roof space does not mean more solar expansion - on the contrary: where a lot has been built, the solar factor is relatively low. Where less is built, the ratio rises.
The solar systems that are installed, however, increase in their performance. The newly installed photovoltaic capacity per 1,000 inhabitants has increased by 50% compared to the Solar Check 2021 - from an average of 5.61 to 8.36 kW per 1,000 inhabitants. The study notes this trend in all 14 metropolitan areas.
Car: Günter Drewnitzky
Accessibility
Language