I worked at a wood shop production factory that used all their scrap to run a big GE steam turbine. They got heat and electricity from it, plenty. However, this was a very expensive unit that required two certified engineers per shift to operate.
The best bet to get off grid for electricity is start with a personal site survey, then determine which combination of alternatives will work for you. A typical off grid setup for residential use today will have a hybrid system using solar PV, wind, and a backup liquid fuel running generator. It's a big variable though, you need to do a site survey first. And remember, work to drop demand by using efficient appliances, then add to production. Dropping demand is always cheaper.
Home steam has never worked out very well in the altenergy community, it is inherently simple in theory, yet complex in practice, and requires a lot of maintenance and hands on all the time, whereas solar and wind once set up are almost maintenance free and quite safe. Hydro is another option but das goobermint can be quite the pain when it comes to permitting today for that.
The DOE has some maps that will get you going, find your area then look at solar and wind potential. It really matters your exact location and situation. Like where I am now, solar PV would be king, and little to no benefit from a windcharger. However, to the east of me up in the mountains, it just cracks some areas where a solar and wind hybrid system would work. Just depends. I have both solar and wind, but my windcharger is in a box, it just isn't worth setting it up here.
Right now the market is flooded with solar PV and there are some deals out there.
Home Power magazine is your one stop shop resource for these questions. Well worth it. They have a very nice archive as well.
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