In the news today, I saw that Honda is going to start leasing a hydrogen powered vehicle in the LA area soon. Cool.
From there, a little random web browsing led me to an interesting page with photos of offshore wind turbine arrays, including the Horns Rev farm in Denmark, which has a capacity of 160 megawatts.
Which made me think… how much energy do we use in the US, and how many Horns Rev’s would we need to power our lifestyles? Apparently as of 1999, we were using about 100 quadrillion BTUs every year. That’s 100,000 million million, in case you were wondering.
But how many Horns Rev’s is that? How do you convert BTUs per year into Megawatt capacity? It’s easy… just do a little conversion:

You can check my units by crossing off all the unit pairs… the yr in the numerator cancels out the year in the denominator. The kwh in the denominator cancels out the kwh in the numerator, etc. Yay high school science.
So anyway, we in the US are apparently drawing 3.2 million megawatts in any typical moment… That’s 20,000 Horns Revs. Eek. That’s a lot. But Denmark is a little country. Maybe it’s not out of the question. Germany’s current wind power capacity is about 20,000 megawatts. So, we’d only need to duplicate Germany’s entire capacity 160 times.
Hey, that’s only two orders of magnitude! That seems doable.
Yo, congress! Can we get on this?