14-10-2019, 05:43 AM
Hi Bob,
Our thermal generation in NZ is typically around 20% of total generation it varies from year to year depending on lake levels etc.
However as by definition E cars are additional load that didn't exist before, they are load that tends to go onto base load thermal generation so while they are Electric cars, they are usually actually running on electricity produced by coal, gas or oil.
I read an article from Scandinavia on the CO2 emitted in the manufacturing process of batteries for E cars, apparently the battery for a Nissan Leaf emits 7 tonnes of CO2 being manufactured, just the battery, not the entire car. For one of the Tesla models the figure given was 17 tonnes.
Cheers
Marcus
Our thermal generation in NZ is typically around 20% of total generation it varies from year to year depending on lake levels etc.
However as by definition E cars are additional load that didn't exist before, they are load that tends to go onto base load thermal generation so while they are Electric cars, they are usually actually running on electricity produced by coal, gas or oil.
I read an article from Scandinavia on the CO2 emitted in the manufacturing process of batteries for E cars, apparently the battery for a Nissan Leaf emits 7 tonnes of CO2 being manufactured, just the battery, not the entire car. For one of the Tesla models the figure given was 17 tonnes.
Cheers
Marcus