Pedal Power. By Dave|2012-09-19T02:32:03+01:00September 19th, 2012|News| One Comment Bilsko September 19, 2012 at 1:16 pm - Reply Its a nice infographic – the only problem is that (as with most of these graphics that try to discuss energy issues) there is no such thing as Watts per hour. The measurement is Watt-hours; its nuanced, and most people dont see the difference, but its worth getting right. Watt-hours are a product of power (watts) and time (sec/min/hour), not a rate of change of power. 5 miles per hour and 5 miles are not the same thing. Leave A Comment Cancel replyComment Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.