Anyone else have yet to use power stones, and just rely on dregs for fuel?

[MegaMan]

I feel like it's impossible to use up dregs faster than I get them. I haven't used a single fuel source other than dregs and I'm nearly into year 3.

[SimuLord]

If you're diligent about using recyclers and hitting the scrapyard regularly, you'll generate a ton of dregs.

If you rely more on mining and using furnaces and processors and what-have-you, where the output doesn't generate dregs, you'll be relying much more on the power stones you find when in the mines.

It's a strategic decision, and I'm in your boat; often I end up grabbing a quick ~500 gols dumping a 999 stack of dregs with a vendor to free up an inventory slot. Power stones get sold at the water shop because it's one of the few items you can sell there and offsets the cost until my midgame collection of Super Dew Collectors makes me a net seller rather than a buyer of water.

[Aerogems]

I think in my latest playthrough I had to use 1-2 power stones because I actually ran out of dregs after not going to the scrap yard for a few days, but generally, yes. They're free, not much else you can do with them, and there's no pollution mechanic in the game.

[MegaMan]

I have two recyclers going basically full time, so it's just unlimited dregs for me...once you have a contract with the Eufala scrap yard to deliver you scrap, there's no way you'll ever run out.