As a consumer in a state that has, as of recent years, been subject to rolling blackouts multiple times, I think this is a great idea. I'm doing what I can to reduce my energy footprint because:

1. It results in a cheaper utility bill.
2. It is better for the environment.
3. It reduces the likelihood of rolling blackouts, which makes life in the summer much more convenient.

I like the idea that my next tv purchase could be a bigger screen that will use as much, or less electricity than my current tv. Just like when I replaced my giant, heavy, blurry 17" CRT with a 20" LCD. Bigger screen size, sharper pixels, more resolution, less power use.

As an aside, I don't really see what benefit plasma has over LCD for daily use. Heck, if the intersection of my income and market economics ever works out, I've got my sights set on the LEDs.