The infrastructure fund (name is not discosed at this point), is an established mid-market infrastructure investor. They were founded in year 2010 and now manage € 4.5 billion of capital, largely from pension funds.
They are a long-term, conservative investor with 20 portfolio companies in the critical infrastructure space, including renewable energy, utilities, transportation, and social infrastructure. 
Östlund Consulting Wind is contracted as an industrial advisor in the power space.