How do we determine energy returned on investment?
EROI is calculated by dividing the energy output by the energy input. Measuring total energy output is often easy, especially in the case for an electrical output where some appropriate electricity meter can be used.
What does it mean to have an energy return of between 1 and 10?
What does it mean to have an “energy return” of between 1 and 10? more energy is returned then expended. What is a major problem with fossil fuel use? unsustainable as sources limited, fossil fuels will one day run out. You just studied 18 terms!
How is net energy different from energy returned on investment?
Energy Return on Investment (EROI) is the amount of energy expended to produce a certain amount of net energy. EROI is an important determinant in energy commodity and electricity pricing. EROI decreases when energy becomes scarcer and more difficult to extract or produce.
What is the difference between eroi energy returned on investment and net energy?
What is the difference between EROI (energy returned on investment) and net energy? Net energy is simply the difference between energy returned and energy invested. EROI is a ratio with energy return in the numerator and energy invested in the denominator.
What is eroi energy?
The implicit return of energy efficiency investments
However, the electricity savings you see from energy efficient measures should eventually offset their extra cost, which provides an implicit return on investment (ROI) when compared to the lifetime costs of adopting more conventional products.
What is the net energy ratio?
NER refers to the sum of energy for cultivation, harvesting, and drying, divided by the energy content of the dry biomass.