The vehicle is now the largest of its kind in the UK after securing a further £475m.
Almost triple the size of its predecessor, the vehicle will look to invest across OECD markets and seek net returns of between 9% and 10%.
The German asset manager has enlisted support from four European institutions as it advances towards its €500m target.
Proceeds from the Korean lender’s inaugural offering will be used to finance or refinance renewable energy projects.
The vehicle, which has a $1 billion target, counts LPs from the Netherlands, Norway, the UK and South Africa.
The firm’s second renewable power vehicle is nearing its $1.6bn objective after picking up investments from two US pensions this month, including $50m from the New Mexico State Investment Council.
The clean energy financier is more than doubling its commitment to a NAB programme providing discounted loans to buyers of clean energy equipment.
The $542m vehicle aims to invest in up to 1.8GW of renewables assets across China by the end of 2018.
The vehicle would be its first to target offshore wind while the company has also made further headway on its energy storage fund.
North Sky Capital, which bills itself as an impact investor for US foundations and family offices, closed one fund at $63m and another at $240m.