The website linked is actually measuring the amount of energy that BC is using right now to operate. It's not the total amount of energy used to create the BC

The website linked is actually measuring the amount of energy that BC is using right now to operate. It's not the total amount of energy used to create the BC network, the software, the HW and everything else. https://cbeci.org/ https://cbeci.org/ > The Cambridge Bitcoin Electricity Consumption Index (CBECI) provides a real-time estimate of the total electricity load and consumption of the Bitcoin network. The model is based on a bottom-up approach initially developed by Marc Bevand in 2017 that takes different types of available mining hardware as the starting point. > The first number refers to the total electrical power consumed by the Bitcoin network and is expressed in gigawatts (GW). This figure is updated every 30 seconds and corresponds to the rate at which Bitcoin uses electricity. The second number refers to the total yearly electricity consumption of the Bitcoin network and is expressed in terawatt-hours (TWh). We annualise Bitcoin’s electricity consumption assuming continuous power usage at the aforementioned rate over the period of one year. We apply a 7-day moving average to the resulting data point in order to make the output value less dependent of short-term hashrate movements, and thus more suitable for comparisons with alternative uses of electricity.