The traditional way of producing energy around the world refers to Fossil fuels, this model must change now!
Fossil fuels are carbon-derived substances that have been formed from the remains of dead organic matter over a period of time spanning millions of years.
As a source of energy, its supplies are limited and cannot be replenished. The reckless consumption of coal and oil around the world has naturally drawn attention to the environmental dangers of this mode of energy.
El global warming, the increasing incidence of asthma and various other ills can be attributed to an increasing burning of these fossil fuels. As a result, the need to adopt alternative energy modes has been clearly felt in recent times.
Various types of alternative energy have been developed to varying degrees, which are being promoted by governments, private companies and international agreements such as the Kyoto Treaty.
In the following sections, we will briefly discuss six main forms of alternative energy.
1.- Hydroelectric Energy.
Basically this uses the force of falling water, as seen in natural waterfalls, to convert turbines for mechanical or electrical power generation. Hydropower is one of the oldest and most widely used forms of alternative energy. Regions that have multiple rivers and streams create fertile ground for the construction of dams to store water in large quantities. Hydroelectric dams can power an entire city at a cheap rate. The construction and management of hydroelectric dams they involve considerable finances and experience, respectively.
An index of popularity and success in this way can be measured by the fact that today almost 20 percent of humanity's energy needs worldwide are met by hydroelectricity. Hydropower comprises almost 90 percent of all energy generated globally by the various combined alternative forms of energy.
2.- Wind energy.
Employing the force of the winds to generate electricity is recommended as an alternative form of energy, as it is inexpensive, easy to operate, and environmentally friendly.
Areas with high winds are ideal locations for installing windmills. Such regions can happily use their strength to turn windmills that can be used to generate lots of electricity.
Windmills are easy to build and the force of the winds causes them to move and eventually generate electricity. The associated technology is being used successfully in various parts of the world.
The Netherlands has become an excellent example of an effective use of this form of alternative energy.
Nuclear power has the potential to generate a large amount of electricity. This mode has certain inherent factors and risks that cannot be ignored.
Nuclear technology remains the exclusive preserve of a certain band of elite nations. More than 14 percent of global electricity in 2007 came from nuclear power plants.
That is why the construction of new nuclear plants is very slow; and in fact, being already objected in many countries.
4.- Tidal or wave energy.
Natural tides in coastal areas are a clean, renewable and profitable form of alternative energy.
The energy is generated in a clean way from the natural movement of the waves of the sea, which when moving the buoys in float (on the surface or submerged, depending on the technology) mechanically drives turbines that generate electricity.
Its advantage is that the conversion rate of electricity is higher than that of solar energy, and it is infinite.
The radiation from the Sun is infinite in terms of our life on the planet. However, this technology has not yet been able to expand to the desired levels for various reasons. The cost of photocells versus the amount of energy it generates, it is the main barrier. Then systems for storing energy, such as battery banks, are expensive.
On the other hand, intermittent cloudiness is the enemy of supply stability. If there is no sunlight, there is no power.
And finally, the cells themselves take up a lot of physical space.
A bet that is being explored by institutes and companies is to incorporate photosensitive film to the glass panels of the windows of buildings and houses, which would reduce costs significantly, saving space by not having to install bulky structures.
6.- Geothermal energy
Taking advantage of the heat of the earth itself is an option in countries where geothermal activity exists.
It is a source that is clean in itself, but the products derived from it, if not properly managed, can be toxic to the environment, such as hydrogen sulfide.
The installation cost of the plants is usually initially expensive, but after it is put into production it is extremely inexpensive.
The most important thing about all these energies is that they take advantage of natural resources and do not have as much environmental impact as those derived from oil or coal. They help the environment to recover by not contributing greenhouse gases, and therefore contributing to climate change.