Saturday 23 September 2023

Batteries better used on solar houses than in electric vehicles

Kia EV9 has a 110 kWh battery which saves 2-3 Tonnes of  CO2 per year

Average Houses: That same 110 kWh would provide back up power for 6 houses and save 29 Tonnes of  COper year.

There is a current shortage, predicted to get worse, of battery inputs like Lithium, Cobalt nd Nickel. Therefore there will be a shortage of batteries. 

“There will be a shortage of EV battery supplies,” said Joshua Cobb, senior auto analyst for BMI. Link

Given the expected shortage of batteries the question then is: Where best to use batteries? Houses or EVs? 

Clearly the answer houses. Because they will save up to 15 Times more CO2 than if used in EVs

But all that’s pushed is EVs. It’s the narrative. Even though the picture is even worse than that. Look at what Volkswagen says (above chart) about when an EV becomes carbon neutral vs its diesel equivalent: it’s not until 70,000 MILES. 

Or 80k miles or 90k miles (145k kilometres) or even NEVER, if the EV car is big enough,  according to a TedX talk sent by an OR. For now, the best is option for cars is hybrid. Which is kind of what I would have thought. Especially given the huge “range anxiety” that is reported by every EV driver going on a long trip: by “long” meaning anything over 300km or 200 miles.