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.
Not necessarily due to "your Windows laptop", sometimes it's due to hidden/forgotten vendor bloatware and Windows' very own background services. That is, due to shabby software, not your laptop. I disabled Windows Update (rather check it manually every other month) and went through the list of services that'll realistically never be used even indirectly to disable and voila, no more random fan spinning! Until I open a WebGL page or something that is.. that "3D JS" will heat up even a current mobile workstation with a 3GB-VRAM Quadro GPU!
