But the percentage of actual electricity generated rose by only 1% in 2016. That's partly because renewables have lower capacity factors (25%-30%) than fossil fuels (60% to 70%). And with global growth in electricity demand at around 3% per annum these days (though it will accelerate as EV sales take off), that 1/3 of incremental demand growth.
Since big hydro and renewables provide about 25% of electricity generated globally, at this glacial pace it will take 75 years before 100% of our electricity comes from renewable sources. And that isn't fast enough. We need to double the annual rise in the percentage generated from renewables to 2% per annum, which would mean we'd reach a 100% green grid by 2050. And we need to stop building new coal power stations. Europe has promised to stop doing this by 2020; India will build none for at least the next ten years, which in effect means never, because renewables will be even cheaper then; China has cancelled 104 planned and partly built coal power stations; the USA will never build another coal power stations again. So there is hope. Some.