The contrast of the soaring night-lit office towers of Singapore’s financial district as a backdrop to Boon Tat Street, a stretch of tarmac blocked to traffic in the evenings and reborn as an open-air beer hall lined with smoking satay huts, feels like a reminder of the pace of change – and of the money needed to drive it.

Just as renewable energy is reinventing global power paradigms through a build-out of wind and solar power that together should reach 4,500GW by 2030, so too it is spurring a rethink of financing models, from green bonds to crowdsourcing.