My monthly electricity bill is pretty minuscule anyhow. It's between about $20 a month in summer to $50 in the dead of winter. I never use air conditioning in the summer, and I layer up as much as possible in winter, but sometimes I have to turn on the heat. I have only LED or CFL lights, some running off of battery/solar. And now I only charge the phones via the foldable solar panels. Water heating and cooking are done with gas, which is another expense I want to drop eventually.
The big drains are: MacBook Pro, Time Capsule, additional external HDD, LG monitor, Epson projector, microwave and fridge. I've simply not used the LG monitor or the Epson projector for weeks now as I attempt to lower my electricity bill as far as possible.
My load is relatively small, so I was hoping I could put together a relatively inexpensive system for most of my needs, but I am getting the feeling it's not really worth it.
I'm currently underemployed, but I live in Tokyo proper, and my rent is really terrible. Made sense when I signed the lease and had the best paying job I'd ever had, but I don't have it anymore (the parting was... mutual, if not amicable). But I was smart enough to save several months of emergency funding, just figured I'd try to make it last a bit longer, but I don't think I can afford these start up costs to create a really comprehensive system.