Athos, the family office of the Struengmann family, completed the acquisition of a 15% stake in Blue Elephant Energy, a Hamburg-based independent operator of solar and wind power plants, for $89m. "Blue Elephant Energy AG is very well positioned in the renewable energy markets and is set to further grow strongly. The team is one of the most experienced in the market and we see a great fit with the existing investors," Thomas Maier, Athos Managing Director.