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> What can be stepped up fast is wind and solar energy. I don't know who told you this. Can you point to any large city that is running on purely wind & solar

> What can be stepped up fast is wind and solar energy. I don't know who told you this. Can you point to any large city that is running on purely wind & solar right now? As far as I'm aware, there's not even a large regional city that has demonstrated this can work with current battery technology. I would be really happy to be wrong on this, but as of right now, it's not an option and we need to be realistic about that. "The US Energy Information Administration (EIA) says nuclear power plants had a capacity factor of 92.6% in the US during 2022. This compares to 36.1% for wind energy and just 24.8% for solar photovoltaic technology. To a rough approximation, it takes three times as much wind capacity and four times as much solar to produce the same amount of electricity as a nuclear power plant over a given period. This is complicated by seasonality. Solar, for example, is particularly ineffective during the winter months when energy needs in the northern portion of the country are highest." [0] https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=table_6_07_b https://www.eia.gov/electricity/monthly/epm_table_grapher.ph...

tcfhgj 3y ago
You don't need to run 100% on solar and PV to cut emissions significantly using it Regarding seasons: in our country wind is strong when solar is weak and vice versa
ncallaway 3y ago
> Can you point to any large city that is running on purely wind & solar right now? That wasn’t their claim at all, so it seems questionable to demand they prove this. It’s like if someone said “cheerios are good for the heart”, and you asked someone to demonstrate that nobody ever had a heart attack while eating cheerios. You’re challenging an exaggerated version of the claim that was made, not the actual claim.
- speakfreely 3y ago
  > That wasn’t their claim at all, so it seems questionable to demand they prove this. That is a fair criticism.
plantain 3y ago
Purely on wind & solar? Probably only islands. But major cities are getting close. Adelaide, Australia went from 100% carbon energy in 2007 to ~30% today, and looks to hit at a net 0% by 2028. https://opennem.org.au/energy/sa1/?range=all&interval=1M https://opennem.org.au/energy/sa1/?range=all&interval=1M

tcfhgj 3y ago

You don't need to run 100% on solar and PV to cut emissions significantly using it Regarding seasons: in our country wind is strong when solar is weak and vice versa

ncallaway 3y ago

> Can you point to any large city that is running on purely wind & solar right now? That wasn’t their claim at all, so it seems questionable to demand they prove this. It’s like if someone said “cheerios are good for the heart”, and you asked someone to demonstrate that nobody ever had a heart attack while eating cheerios. You’re challenging an exaggerated version of the claim that was made, not the actual claim.

speakfreely 3y ago
> That wasn’t their claim at all, so it seems questionable to demand they prove this. That is a fair criticism.

plantain 3y ago

Purely on wind & solar? Probably only islands. But major cities are getting close. Adelaide, Australia went from 100% carbon energy in 2007 to ~30% today, and looks to hit at a net 0% by 2028. https://opennem.org.au/energy/sa1/?range=all&interval=1M https://opennem.org.au/energy/sa1/?range=all&interval=1M