

In the fall/winter in northern areas it’s free! (Money that would already be spent on heating).
Summer is a negative though, as air conditioning needs to keep up. But the additional cost is ~1/3rd the heat output for most ACs (100w of heat require < 30w of refrigeration losses to move)







All devices on the computer consume power.
The CPU being the largest in this context. Older processors usually don’t have as aggressive throttling as modern ones for low power scenarios.
Similarly, the “power per watt” of newer processors is incredibly high in comparison, meaning they can operate at much lower power levels while running the same workload.