The bar chart indicates the country's total demand and enables the socket only in times of capacity, as indicated by caniturniton.com. This controls a wireless socket that enables and disables the kettle.
Peak Boil is an example of a technology that is imposed, one which the household must orientate around. It removes the liberty of deciding when to make a cup of tea. An intervention was may in my parents home and was met with horror. It was immediately covered with a dish-cloth and a themos was filled.
The body is formed of cardboard and reflects a time where oil is expensive and plastic is no longer the economic material of choice.