What is the best ***Currently commerically available*** off-grid household eco-tech???

Every time I mention solar or wind power someone says. "That's nothing, what about crystal lattice/soild state/helium 3/ yadda yadda." When you ask them about it it's not commercially available.

There's a lot of talk about tech that's coming down the pike in a few years, but I wondered: What is the best generator to provide partial or total off-grid energy in a renewable manner? Anything from 100 watts up.

Is there anything currently being sold that's better than solar or wind turbines?

I'm not interested in:

- Talking about about ZPE or free energy
- Something that is not ready now.

Thanks

Peace