By Katie Fehrenbacher, Fortune.

Financial giant Goldman Sachs announced on Monday that it plans to invest $150 billion in clean energy projects and technology like solar and wind farms, energy efficiency upgrades for buildings, and power grid infrastructure.

The investment bank previously had a target to invest $40 billion in clean energy technologies by 2012, and will now almost quadruple that amount by 2025.

Goldman Sachshas long been bullish on clean energy and was an early financier of solar and wind farms around the world. This summer the company signed a pledge, organized by the White House, to take measures to curb greenhouse gas emissions and invest in cleantech.