Green Investment Group

Green Investment Group (GIG) is a specialist green infrastructure investor and developer focused on accelerating the transition to a low‑carbon economy. Launched by the UK Government in 2012 as the UK Green Investment Bank and acquired by Macquarie Group in 2017, it now operates as part of Macquarie Asset Management’s Real Assets division. From 2012 to 2017 it helped finance more than £12 billion of UK green infrastructure and has since evolved into one of the world’s largest dedicated green investment teams, with more than 450 staff, investments or operations in over 25 markets and offices across the UK, Europe, the Americas and Asia–Pacific. GIG develops, finances and manages green energy assets and platforms across core renewables and emerging transition technologies. Its portfolio spans offshore and onshore wind, solar PV, waste‑to‑energy, battery storage, electric vehicle infrastructure, green hydrogen and biogas. In offshore wind it has supported more than half of UK operational capacity and, through ventures such as the 2 GW West of Orkney Windfarm and floating wind tenders in France, has built one of the largest global development pipelines. It invests through dedicated funds including MGREF1, a pioneering offshore wind fund holding six UK wind farms totalling about 1,450 MW, MGREF2, which is building a multi‑GW global solar and onshore wind portfolio, and UK Climate Investments, a joint venture with the UK Government targeting emerging markets. Strategically, GIG creates specialist operating businesses such as Corio Generation (offshore wind), Cero Generation and Galehead (solar), Blueleaf Energy (APAC onshore renewables), Eku Energy (battery storage), Fleete (EV charging) and HyCC (green hydrogen). Its Green Investment Principles, Green Investment Policy and green ratings framework govern investment selection and monitoring against five Green Purposes, with regular progress reporting and independent oversight designed to ensure enduring, transparent environmental impact.