News about Solar, Wind and alternative green power technologies

Alternative energy has many connotations and sources. The supply of renewable energy is categorized as an infinite yet in face of oil crisis nuclear energy is considered as one. Environmental or economic May-day conditions should be a viable camouflage to categorise nuclear as a renewable source of energy.

It is delusionary to present nuclear energy as renewable sources of energy. However, it is used to blatantly deceive people that non-renewable initiative is good for the environment. These are just the type of business rhetoric making apparition these days. The difference between nuclear energy and renewable energy is that it is limited. Plutonium, uranium as well as other radioactive chemicals are restricted in supply. They are not replenished through a natural process.

When we speak about renewable energy, these are the types of energy that should be highlighted:

1. Tidal Energy

Tidal energy is harnessed through generators placed under-water. The so-called barrage generators or simply tidal stream generators has blades that rotated as dense water move swiftly. There is practically no impact on our ecosystem and the energy is more predictable than what both solar and wind energy are.

2. Wave Power

Wave power is similar to tidal wave in the sense that energy is harnessed from the ocean. However, wave energy generates electricity from the waves on the ocean surface. It does usually use buoy structure, which fluctuates based on waves and thereby creates a movement propelling a generator to produce electricity.

3. Solar Power

Solar power generates energy directly or indirectly from the sun. It uses photovoltaic (PV) solar panels or cells to collate heat and light from the sun. This source of energy is becoming more widely used thanks to technologic development, flexibility, ease to install and cost reduction.

4. Wind Power

Wind power uses the force of the wind. The wind propels gigantic blades to spin around, creating a mechanic movement that turns a turbine. The turbine is connected to an electricity generator, which transmits the energy to the local electricity grid.

5. Hydro power

Hydropower uses gravitational force of falling water to spin a turbine generator, which does thereby produce electricity. This is a widely used mechanism to produce electricity and it has practically no byproducts or waste. Yet, the hydropower plants can be highly complex and expensive to construct.

6. Geothermal Energy

Geothermal energy is harnessed both at small and large scale. In the past it was used by the ancient Romans. However, today geothermal energy plants are much more complex. Pipes are drilled into the core of the earth to make use of the heat and steaming water as a pressure force to spin a turbine generator.

7. Radiant Energy

Radiant energy is something seldom referred too. It is a type of energy that is omnipresent, it can practically do the same work as electricity but at a much lower cost. In Switzerland there are some models using radiant energy. An example is “Tesla’s magnifying transmitter”.

8. Biomass

Biomass refers to biological materials, usually dead plants and crops. From plants bio-fuel, bio-diesel and ethanol can be extracted. These are energy sources that could substitute oil used for the automobile industry and thereby reduce carbon dioxide emission.

Nuclear energy, compressed Natural gas and oil are all restricted in supply. They are thus not renewable sources of energy. Fossil fuel are limited in the sense that it has taken millions of years to be formed and it will take equally long to re-form these fossil fuels once depleted.

All non-renewable sources of energy have a detrimental impact on our ecosystem when exploited.