Aliens somewhere, presumably.
Zero Point Module, often abbreviated ZPM, is a power source, created by the Ancients, capable of supplying tremendous amounts of energy. It is one of the most formidable power sources known to exist, having been developed by the Ancients several million years ago during their reign of the Milky Way galaxy
Carter: I've finished comparing Goa'uld control crystals, all that glow is completely unnecessary.
O'Neill: So they added lights inside closed boxes because…?
Teal'c: The Goa'uld have always favoured displays of grandeur over practicality.
O'Neill: Hold on. You're telling me the galaxy's self-proclaimed gods are flying around in gamer motherboards?
Carter: Sir…
Daniel: No, I think Jack's right.
O'Neill: I am?
Daniel: Glowing lights everywhere, gold trim, needlessly dramatic startup sequence. And they definitely treat us as pawns in their games.
Teal'c: Indeed.
Fortunately we are not on Chulak.
Our Amearthican designs would never have such flaws. They are completely safe, and several are operating around the galaxy already, producing hundreds of exawatts. Unlike the stellar panels recommended by those ill-advised "environmentalists" which can't work in nebula weather, or helioshock plasma turbines that rely on the stellar wind, our plants provide a sustainable base load in all conditions.
I say was, because the current problem is that those "environmentalists" you mentioned managed to scare remaining interstellar governments away from this technology, which made them double down on biomass extraction.
On the other hand Carter did what she set out to do while McKay fscked up and wasn't trying to blow anything up, so there is also that.