"Key Findings: Renewable energy capacity has grown at record- high levels, even as investment has dipped in dollar terms in 2016. Investment levels are highly responsive to policy changes. Offshore wind investment has risen steadily – quadrupling in 2013-2016 – and is poised for further growth. Private sources provide the bulk of renewable energy investment globally – over 90% in 2016. But public finance can play a key enabling role – covering early-stage project risk and get