Renewable energy

Perforation type: 12 ¾x13 ¼

Subject:

43 cents. Three wind turbines. The blue arrows symbolizing constantly acting wind power, green - use of this energy in useful objectives*.

Additional:

*Renewable energy is energy generated from natural resources, such as sunlight, wind and rain which, and are naturally replenished. Since three decades ago, they are considered as alternative to the traditional ones since renewable energy quickly replaces itself and is usually available in a never-ending supply and has a minor impact on the environment. This issue is made up of four stamps devoted to four of the main renewable energy technologies: Hydro power, Wind power, solar energy and geothermal energy.

Wind power is the conversion of wind energy into a useful form, such as electricity, using wind turbines. From ancient times it has been used to propel sailboats and axels in windmills and is currently one of the main energy producing systems with high levels of penetration. The principal application of wind power today is the generation of electricity mainly through large scale wind farms.

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(The text is taken from the advertizing booklet of Spanish Post)

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Special cancellation of first day of release you can see here