Re:China says it wants to eliminate Bitcoin mining
by mrpopo on Wednesday April 10, 2019 @03:01AM
(#19622473)
In the US, that was mostly due to gas replacing coal. France is not using renewables. This is great, but not due to renewables as you initially claimed. Also, I don't think the share of bitcoin mining is significant in these examples.
I was asking for a country that managed to reduce their CO2 emissions significantly with renewables. It may happen in the future, and I'm certainly hoping for it, but we don't have a large-scale concrete example yet.
Re:China says it wants to eliminate Bitcoin mining
by mrb on Friday April 12, 2019 @01:10AM
(#19642140)
I initially mentioned renewables as just one way to achieve CO2 emissions reductions. Nuclear is another way that works just as well.
"we don't have a large-scale concrete example yet"
China single-handedly added 230 GW of hydropower in 10 years (2006-2016). This could power the entire country of Japan (5th biggest electricity consumer in the world). If this isn't "large-scale" enough for you, I don't know what is ;) China also added a ton of fossil fuel power plants in that same period, but still it shows at least hydro, as a renewable, can work at very large scales.
And according to https://www.hsdl.org/?abstract&did=801297 CO2 emissions per kWh have already decreased 2.58%/year between 2005 and 2016 (-25% over 11 years). That's already far better than the 1.60%/year I assumed (-80% over 100 years), further strengthening my point that these Nature authors' assumption that CO2/kWh will never improve in 100 years is utterly unrealistic.