[maltris]

>The five-mile stretch of energy-saving street lights saves 2,100 kWH per week, which would amount to approximately 21 hours of ironing, or four hours of watching TV on a plasma screen.

Am I missing something? Five mile stretch? 21 hours of ironing? What iron is that.

[zenexer]

I think they did their math wrong. If we assume an iron operates at 1000 W (probably about right), then 21 hours of ironing is 21000 Wh, or 21 kWh. Someone probably got a little confused and ended up off by a couple orders of magnitude.