I was formerly on solar before moving to an apartment. Hence the "I've used an old eMachines PC... in the past." Besides that, the power supply barely made past 200W, which is basically 2 incandescent bulbs.
As someone who was on solar you should realize that 200W is a _lot_ of power. Especially if it's 24/7. If you hadn't heard people have moved away from incandescent bulbs because the energy use is considered unacceptable.
