evidence: AAP FactCheck examined a Facebook post from November 7, 2019 by public page Stand Up For Australia- Melbourne, which claimed a wind turbine, referred to in the post as a windmill, "could spin until it falls apart and never generate as much energy as was invested in building it". [...] Mr Homer-Dixon wrote that the full excerpt from Dr Hughes’s essay reads: "The concept of net energy must also be applied to renewable sources of energy, such as windmills and photovoltaics. A two-megawatt windmill contains 260 tonnes of steel requiring 170 tonnes of coking coal and 300 tonnes of iron ore, all mined, transported and produced by hydrocarbons. The question is: how long must a windmill generate energy before it creates more energy than it took to build it? At a good wind site, the energy payback day could be in three years or less; in a poor location, energy payback may be never. [...] Based on the evidence, AAP FactCheck found the Facebook post to be false. The post uses a selective quote and omits important information to create a misleading statement. While the original essay stated incorrectly placed windmills could theoretically generate less energy than that used to produce them, multiple studies posited "energy payback" would occur on average from three months to three years depending on where a wind farm is situated.