How to play
Guess the country from the shape of its electricity demand.
The chart shows a typical weekday, hour by hour in the country's own local time, as a share of the day's peak. The label says whether it's a winter or a summer weekday, in that country's own seasons, so it won't tell you which hemisphere you're in.
You have six guesses. After each wrong guess you'll see how far away the answer is, and in which direction.
After your second guess a clue unlocks, and another after each guess that follows. Tap a clue to reveal it, or leave it hidden for the harder game. The first clue switches the chart to real gigawatts.
A new curve arrives every day.