Description: Currently you are watching Net energy ratio porn video uploaded to: Beach porn category. You can find more videos like Net energy ratio below in the related videos section. For example photovoltaic solar power has often been criticized due to its perceived low NER. The NER is a ratio expressing the relationship between outside energy required to release useable energy and the useful energy itself. In the case of some solar power this can be quite low due to the large amount of energy required to make solar devices in the first place. For example published studies indicate it requires an input of kiloWatt hours of electricity to produce a solar panel with a power capacity of 1 kW. The Net Energy Ratio or NER of an energy technology is used to show how ' efficient' that technology is in terms of providing energy to society.
Added: 30.01.2019 at 06:24
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