It doesn't take a lot of GPU to produce one image, and you could always just keep a single image on the wall for a longer time if you want to reduce that impact.
You can also have it not produce images at night or when you are not around the house.
Lots of ways to save energy. The impact of an image every few hours or whatever is nanoscule compared to your transportation and heating needs.
(Also if your apartment uses electric resistive heating, fire away with your GPU, you're just producing images in the process of producing heat instead of passing it through a resistor. It's no less efficient.)
You can also have it not produce images at night or when you are not around the house.
Lots of ways to save energy. The impact of an image every few hours or whatever is nanoscule compared to your transportation and heating needs.
(Also if your apartment uses electric resistive heating, fire away with your GPU, you're just producing images in the process of producing heat instead of passing it through a resistor. It's no less efficient.)