The high cost of energy to produce a single Bitcoin seems to make little financial sense as the cryptocurrency's price slips to about US$86,000 (NZ$147,000). Latest data from Cambridge Bitcoin Electricity Consumption Index indicates the energy needed to produce one Bitcoin costs more than US$100,000 for 15 of the world's top 20 producers, with Australia among the biggest spenders at nearly US$259,000. New Zealand miners need to spend an estimated NZ$173,192.96 on energy to produce one Bitcoin, according to data provided by New Zealand industry organisation Cryptocurrency NZ. Cryptocurrency NZ co-founder Nicolas ... (full story)