Types of Energy

Energy can be divided into two distinct areas Renewable and Non - Renewable Energy but when someone says something like this to me I usually equate the statement with energy for power generation and whilst it is true to say that all types of energy are used in power generation it seems to me that the statement is usually meant for light or heat rather than movement of a person or even simply eating. I can not think of anything man does which does not require power of some sort to carry it out. 

How Energy is Governed.

1st & 2nd Law of Thermodynamics.
The Law of Conservation:-  Energy can neither be created nor destroyed.

​The Law of Degradation:-  in all real processes some energy is used up in a move towards entropy; harmony and chaos.
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Primary Energy Sources.

Non-Renewable Sources

Fossil Fuels-
Coal or Natural Gas
Mineral fuels -
uranium

Re-Newable Sources

Solar
Wind
Flowing water
Biomass
​Geothermal

Mollison's Rules For Energy Use

​•       The systems we construct should last as long as possible and take least maintenance.

•       These systems, fuelled by the sun should produce not only for their own needs, but the needs of the people creating and controlling them. Thus they are sustainable as they sustain both themselves and those who construct them.

•       We can use non-renewable energy to construct these systems providing that in their lifetime, they store or conserve more energy than we use to construct or maintain them.

Holmgren's Sustainability Test

•       Does the system work to catch and store water and nutrients for as long as possible and as high as possible within its catchment landscape?

•       How does it compare with the performance of pristine natural systems as well as wild and naturally regenerated ones (weeds included)?

•       It is possible for managed productive landscapes to collect and store energy more effectively than pristine systems by the careful use of external, often non-renewable energies.
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