NIBC Bank, through its European Infrastructure Fund, and European Energy will together expand the Altlandsberg wind farm in Germany.
This brings the total operating capacity of the wind farm to 14MW and enlarges the portfolio that European Energy and NEIF hold together to 48MW.
The project uses Vestas turbines and both companies said the German offshore wind sector is a core component of each businesses' activities.
A statement by the pair said they anticpate further to pursue further opportunities in the wider European renewable energy market going forward.