This is one of the coolest, and most practical, design concepts I’ve seen in quite some time. Designer Carl Smith, 22, from Doncaster, South Yorks created the wilting flower to let people know how much electricity is being used in their household at any given time.

The flower changes color and slowly wilts in its vase as the electricity consumption increases, giving people a visual account of what their habits are doing to the environment. It’s also a pretty cool way to keep an eye on how much your bill will be.

While it’s just a cool concept right now, it is expected to hit stores one day. When the flowers hit stores, they’ll reportedly cost around $90 each.