You put a smart meter in your home, and you see how much electricity you're using right now, how much it's costing you, your kids go around and turn the lights off pretty quickly.
Jika anda letakkan meter pintar  di dalam rumah anda, dan lihat jumlah tenaga elektrik  yang digunakan dan jumlah kos  yang perlu dibayar, anak-anak anda pun akan  matikan lampu segera.