While researching a new book I came across some data from last year I hadn’t yet posted. The information below is from DEWI Magazin 42, Feb. 2013, p46.
Repowering has now become a significant source of new capacity, accounting for about one-third of new capacity installed in Germany in 2012.
Of the wind turbines installed in 2012, only 28% were installed on green field sites in Niedersachsen and only 20% in Schleswig-Holstein. The rest were installed as replacements for existing turbines that were removed as the sites were “repowered” with larger, taller, and more productive turbines.