Perhaps the source might be questionable in that it tends to be very conservative. The facts presented have been properly sourced.
The conclusion that EV’s need to be charged from solar PV or an alternate 100% green source to genuinely deliver low carbon outcomes is spot on.
Politely the article even uses optimistic range calculations for EV’s in the comparisons.
That EV’s have a high carbon manufacturing footprint (17tonnes of CO2 equivalent for a Tesla Battery is one estimate) has also been omitted in any comparison.
This is not an argument against EV’s or the Tesla vehicles, or in favour of staying as we are. It may simply illustrate that we still have a lot further to go to reduce vehicle emissions in any meaningful and economically acceptable way. Do we need to to more and try harder?
P.s. For our two family household of recent retirees we compared the CO2 emissions of our two cars, mowing etc based on 2,750l pa with our annual electricity approx 3,500kW and gas/LPG of 110kg.
Based on living north of the NSW border we are directly responsible for the CO2 emissions of approx 3.4 tonnes from residential power and gas usage.
This is much less than the approx 6.4tonnes produced from transport and other petroleum fuel use.
This will be different for every household. Perhaps more on one side if you have an air conditioned MacMansion in Cairns or more on the other if you commute by car every day from Gosford to Mascott.
I’ll set the maths and data out in a table if there is enough interest?
