Hey guys,
I’m in a bit of a unique situation and wanted to get some real feedback from people actually using Vast.ai.
I’ve got solar panels and I’m consistently sitting on about ~20 kWh of extra electricity per day that just goes to waste (or gets sold for basically nothing). Instead of that, I’ve been thinking about putting together a GPU rig and renting it out on Vast.ai.
I’m not really constrained by budget — I can invest properly if it makes sense — but I don’t want to blindly throw money at hardware without understanding how this actually plays out in reality.
What I’m trying to figure out:
- Is this still actually profitable, or is it one of those things that sounds good on paper but doesn’t really pay off anymore?
- If you were starting today, what GPUs/setup would you go for?
- How competitive is the marketplace right now — is it hard to keep your machines rented out?
- What kind of real monthly returns are you seeing (not theoretical)?
- What are the hidden headaches? (downtime, maintenance, pricing wars, etc.)
- Does having cheap/free electricity even give a meaningful edge here?
I’m open to scaling this if it proves out, but I’d rather approach it smart instead of learning expensive lessons the hard way.
Would really appreciate honest opinions, especially from people currently renting out their GPUs.
Thanks