I wonder to what degree this is motivated by an attempt to stifle the expansion of renewable energy. I sometimes get the impression that the "conservative" position has morphed from "cheap energy is good for the economy" to "Coal power, even if it's more expensive than solar or wind, just to annoy the environmentalists".

Note that this isn't about "dumping" (selling below costs), but a much weaker WTO provision allowing to temporarily slow down the pace of change to allow the domestic industry to adapt.