What are the main sources of energy? – Nyserda Free Home Energy Audit

We need a total of six (or seven) primary sources of energy:

Water Water is a waste product of plant metabolism, because it comes from decaying plant matter (in the form of plant matter).

is a waste product of plant metabolism, because it comes from decaying plant matter (in the form of plant matter). Bioenergy , a byproduct of plant metabolism.

, a byproduct of plant metabolism. Waste Water, which must be treated in sewage or treated with water treatment plants and eventually discharged to wetlands.

must be treated in sewage or treated with water treatment plants and eventually discharged to wetlands. Coal , which can be burned as fuel to produce steam in power plants or used for heating.

, which can be burned as fuel to produce steam in power plants or used for heating. Lignite , which can be burned as a fuel by burning wood chips to produce liquid coal.

, which can be burned as a fuel by burning wood chips to produce liquid coal. Uranium (fuel for the nuclear reactors), which often comes from uranium deposits on the seashore (but in a more restricted area).

(fuel for the nuclear reactors), which often comes from uranium deposits on the seashore (but in a more restricted area). Biomass, which is a byproduct of other organic activities and the burning of organic waste products.

Which sources would provide the greatest amount of energy? To calculate energy, we can take a snapshot at different points in time. At a certain point in time, we can expect energy production in the form of two different types of energy:

Water and Biomass will produce some of the energy, but coal and nuclear will provide the bulk of the energy

and will produce some of the energy, but coal and nuclear will provide the bulk of the energy Bioenergy and waste Water will produce some of the energy, but bioenergy and waste will provide a significant amount of the energy

Water and Biomass also account to a certain extent for heat that’s used in cooking.

Cayman Eco - Beyond Cayman How It Feels Living in a City ...
The following graph shows the energy needs and energy production per hectare.

If no waste and biomass (water and biomass) are available, there’s no energy production.

But if these are available, then the area’s population grows proportionally rapidly:

The graph shows population growth as a function of area.

Energy needs for water and biomass

Water and biomass provide most of the energy needed

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