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Why are you only concerned with emissions of transportation and not total emissions? Replacing 10 GWh of fossil fuels with 10 GWh of renewables will reduce tota
by goodSteveramos 3y ago
Why are you only concerned with emissions of transportation and not total emissions? Replacing 10 GWh of fossil fuels with 10 GWh of renewables will reduce total emissions in both scenarios because that 10GWh of fossil fuel energy was being consumed fully in both scenarios. Eventually, when almost all electricity is carbon free, adding more carbon-free capacity will stop reducing emissions because your capacity greatly exceeds demand. Once that happens, then yes, scenario A will result in greater reduction of emissions for every unit of new carbon free electrical production because it is offsetting gasoline combustion. But my point is that we are decades away from electricity being nearly 100% carbon free.
- XorNot 3y agoBecause the scenarios in question are only concerned with emissions from transportation, but more importantly disregard storage. Multiple countries at present, at times, exceed their energy demand by renewable production...but the excess is pretty much just lost, their isn't adequate storage to bank that energy. EVs do bank that energy, and more importantly they're likely to do it during the parts of the day demand isn't as high (i.e. peak sunshine). Moreover, centralized emissions control or reduction is much more addressable then 1,000,000 individual combustion engines.