Pipe line.compressors switched for.NOx compliance the.gas engine’s are.diesels that put out good amounts of.NOx gases to.clean.that you need SCR amd.Urea systems which add a new.consumable the liquid Urea and $$$$ its.cheaper to just put a electric motor on it but then you lpse the self pumping capacity which as we.all.can see now.is a terrible idea
Great example of how gov’t regulation had a hand in this.