The maximum power consumption of the Hive is 10W but this can be reduced by keeping the Hive in a cool, dry place. Taking an average energy price of 0.10USD/kWh in the USA – this results in a maximum running cost of $1.092USD per week down to $0.08USD per week. In Austria the cost is €0.08 to €1.06 per week, in the UK the cost is £0.07 to £0.84 per week. Prices according to this site.