As noted previously, a low "fixed cost of gas plant" line, about the level of "go bankrupt", might clarify that its the fuel cost that can swing to a very large share of total power cost when fuel costs spike.

Last slide: "with firm policies supporting that" -> "without firm supporting policies"

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.