Well, I sort of got it working. It seems that Google (Blogger) has a problem with iframes, and that's pretty much the only way to include one of these. The problem is that it messes with the scrollbar in Chrome, their own browser. I'm not sure how they show up in IE, except they won't show up at all in IE8 because it doesn't support canvas. For something this complex, the canvas is the only practical solution short of using something like Flash.
So, if you're using Chrome, look over to the right where the scrollbar is, notice it doesn't look right? If you put your mouse over there and click, you'll see that it actually works, but just doesn't look right. I don't have a solution to this yet.
But, let's look at the gauge. Notice it has an LCD display and a moving hand. When my energy usage goes above the red indicator (it's on the dial), the little red LED will light up. These are all parameters that can be set for the gauge. I chose the brass look simply because it fit my taste, there are many, many combinations possible. The gauge is sort of real time. What I do is update it every 10 seconds from my datastore at Cosm which is updated every 60 seconds. So, every minute or so, it will be updated to reflect the current power usage at my house. I plan on working with these gauges quite a bit more; they're just too nice to leave alone.
And, sorry about your scrollbar; it'll come back when you go leave this page.