One thing about a biomass stove and that is, no getting up at midnight to fill it. Even wide open, it will run a12 hours on a full hopper. I keep my pellets (which I buy as full skids, 50, 40 pound bags, shrink wrapped) and my corn which is either in 50 pound bags or sealed supersacks in the barn and I'll mix up (corn and pellets) in 4 large plastic refuse cans with lids on a skid and I set that up on the back deck by the door with one of my front end loaders so getting fuel is about 10 steps from the inside stove and I keep another plastic refuse can full of mix in the shop for that one which is usually idling along on low most of the time. Always on guard for vermin (mice love corn), but my 3 bucket traps baited with Skippy handle that chore.
Energy choices are kind of limited out this way as it's mostly crop land so cleared of trees to cut for firewood anyway.
I'd have Geothermal myself (one of my good friends has it) but he's 15 years younger than my wife and I. The ROI on Geothermal isn't there for us at 72 years old. His total electric bill averages 70 bucks a month year around for ac and heat.
Electricity isn't cheap here and going up every month is seems like and I suspect propane will follow suit unless we get a change in government. Remember, electricity still mostly comes from coal and NG pants and some Nuclear and propane comes from oil (in the cracker).
Pellets are pretty much the same cost as last year when you buy in full skids and like I said, my corn is free so it's a pretty good deal for us and I do like the new Bryant Plus 95 condensing furnace, so quiet you cannot hear it run.
I believe, depending on where you live and the availability of various types of energy (electric, NG, propane, wood or biomass, determines what is most economical to use.
Being retired (both of us), we have to watch our pennies more closely than before,. besides, I'm cheap.....