The amount of time spent doing GPU work is rather small. Battery life tends to be better on my Macbook with Alacritty than with other terminals. This seems to suggest that power consumption is actually less than with CPU based renderers (and that your GPU fans shouldn't be spinning).
I didn't realize there's no Windows version available yet, I was totally thinking about my Windows laptop. My Apple (work) laptop is much better about not turning on fans willy-nilly.
