Solar and Wind Power

Alternative electric energy has seen a marked increase in investment over recent years. As the world responds to the range of crises presented by global warming, viable solutions are being sought to combat the problem.

Since the industrial revolution, we have placed heavy demand on non renewable resources such as coal, oil, and gas. In some countries deforestation is compounded by people who still use wood for charcoal. This trend cannot continue and massive investment into alternative electric energy is imperative.

Many people think of alternative electric energy as advanced scientific concepts that are too complicated for the ordinary lay man. While many alternative energy systems are indeed high technology, the principle behind most of them is actually quite straight forward. The basic idea is to harness energy sources that are infinitely available or renewable to produce electricity instead of depleting finite sources any further.

There is nothing new about using renewable sources for energy. Many alternative electric energy systems are simply an updated version of old fashioned technology. Sources of energy can be generated using the power of the wind, sun or water.

Wind power is one alternative electric energy technology. On many European landscapes you can still find relics of old windmills that were used by farmers to grind grain. The wind was caught in the great blades of these mills which would cause them to turn. The rotating action turned a shaft and the shaft would turn the millstones. Modern windmills are not connected to millstones but rather turbines. When the turbines spin they create electricity. Wind turbines are a renewable source of electric energy because wind is free and abundant.

The cleanest and cheapest alternative electricity energy system for providing electricity to a national grid is hydro power. Hydro electric power is again a modern adaptation of old water wheels that were used for milling in the past. The historical varieties were commonly placed in a river where rushing water could rotate the wheel. Today, modern hydro power plants are placed on the edge of a dam. As water falls from the higher level to the lower level, it forces its way past turbine blades causing them to spin. Turbines feed generators that produce electricity. Many countries use hydro electric power because of its cost effectiveness. These systems are also encouraged because of their non polluting characteristics.

The most popular alternative electricity system for homes, schools and businesses is solar power. The technology used is the most groundbreaking because it harnesses the sun’s energy with tiny components called photo voltaic cells. These cells convert the energy into electricity which is able to charge batteries for consumers to make use of as needed. Solar energy is a slightly more complex technology than other alternative electricity systems but it also the most adaptable.