Список проголосовавших за комментарий "Ra Ga, а если посмотреть на ситуацию с солнечными панелями более глобально, то ERoEI панелей для регионов с умеренной инсоляцией (центральная Европа) меньше единицы, т.е. они не источник энергии, а ее потребитель<br/> <br/> <em>The calculated value for ERoEI is dimensionless, constituting the energy return (2203 kW he/m2) divided by the energy invested (2664 kW he/m2) – a ratio of 0.82. It is estimated that these numbers could have an error of ±15%, so that, despite a string of optimistic choices resulting in low values of energy investments, the ERoEI is significantly below 1. In other words, an electrical supply system based on today’s PV technologies cannot be termed an energy source, but rather a non-sustainable energy sink or a non-sustainable NET ENERGY LOSS. <br/> The result of rigorously calculating the “extended ERoEI” for regions of moderate insolation levels as experienced in Switzerland and Germany proves to be very revealing. It indicates that, at least at today's state of development, the PV technology cannot offer an energy source but a NET ENERGY LOSS, since its ERoEIEXT is not only very far from the minimum value of 5 for sustainability suggested by Murphy and Hall (2011), but is less than 1.<br/> <br/> </em><a href="/r.php?u=https%3A%2F%2Fwww.sciencedirect.com%2Fscience%2Farticle%2Fpii%2FS0301421516301379&s=3050159113">www.sciencedirect.com/science/article/pii/S0301421516301379</a><em><br/> <br/> </em>"