| no, it said it would require more electrical energy than the world is currently consuming; world marketed energy consumption is several times higher specifically what it says is (https://iea.blob.core.windows.net/assets/7a4b0c4e-d78c-4a8e-... p. 95) > If oil and natural gas consumption were to evolve as in the STEPS (i.e. with 97 mb/d oil and 4 200 bcm gas consumption in 2050), this would require 32 Gt CO2 of CCUS by 2050,
including 23 Gt CO2 of DAC, to achieve net zero emissions in 2050 and limit the
temperature rise to 1.5 °C. 8 The DAC would require around 26 000 TWh of electricity to
operate, more than global electricity demand in 2022. 26000 terawatt hours is 94 exajoules; presumably this means per year, so that's 3.0 terawatts. https://yearbook.enerdata.net/total-energy/world-consumption... shows current world energy consumption at over 14000 million tonnes of oil equivalent per year; a toe is conventionally ten billion international-table calories, 41.868 gigajoules, so that's over 580 exajoules per year, over 18 terawatts so it would only require 16% of current world energy production, even with today's primitive technology (but that is indeed more than current world electricity consumption) you may also notice a rapid upward trend in that graph of world energy consumption; if that continues then by 02050 the contemplated amount will be about 10% of world marketed energy consumption but, because i've analyzed the fundamentals, i expect that energy growth to accelerate dramatically rather than continuing the same trend (see my other comments) and to shift dramatically toward electrification presumably also efficiency will improve if the humans scale up atmospheric carbon capture by the proposed three orders of magnitude; the inherent entropic cost is quite low |