Exact(19)
In the best case, as far as I know, it will require large fossil fuel inputs.
Several technologies don't even require fuel inputs (solar, wind, hydro, marine, geothermal, etc).
Growing and foraging all your calorific needs is a huge task, especially without fossil fuel inputs such as fertiliser.
Global agriculture's excessive dependence on fossil fuel inputs means food prices are invariably linked to oil price spikes.
To take a day off and lie on your back in the park all day is completely free, harms no one and demands no fossil fuel inputs.
Sustainable forest gardens filled with perennial plants are less dependent on fossil fuel inputs than traditional annual vegetable gardens, and are better able to cope with extremes of drought and flood.
Similar(41)
Figure 8 Case-related fuel input comparison.
Generates more power output per unit of fuel input with 47% and higher electrical efficiency.
This also leads to an increase in the ratio between the power generation and the fuel input.
The thermal energy of boiler's exhaust accounts for approximately 3 8% of the total energy of fuel input.
Furnace experiments at 0.58 MW fuel input and combustion air preheat of 1300°C were undertaken to examine the process.
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