In its annual report released in December, the Climate Group announced that its RE100 initiative experienced a banner year in 2019, growing by over a third, with 40% of that growth coming from Asia and the South Pacific. One in three RE100 members are now more than 75% renewables powered, and more than 30 have reached their 100% goals, roughly 14% of member companies, according to the report.

Last year, RE100 comprised 221 members, collectively consuming 233 TWh of electricity in 2018. BNEF estimates these companies will need to purchase an additional 210 TWh of clean electricity in 2030 to meet their targets. Should this shortfall be met with offsite PPAs, it would catalyze an estimated 105 GW of new solar and wind build globally and an additional $98 billion of investment, BNEF  calculates.

“Sustainability commitments will ensure that clean energy procurement from corporations continues to thrive,” Harrison said. “The ball is in the court of utilities, policymakers and investors. They will need to meet these buyers in the middle, especially in nascent markets for corporate procurement.”

In Australia, Commonwealth Bank of Australia was the first one to join RE100 in November 2018 and was followed by a number of businesses dominated by the banking sector. The list of Australian RE100 signatories currently includes all big Australian banks: ANZ, Bank Australia, Commonwealth Bank of Australia, Macquarie Group, NAB, Westpack, as well as QBE Insurance Group, property developer Mirvac and tech company Atlassian.