Fire-water-air-earth as renewable energy in Greece

The ancient Greeks believed that there were four elements that everything was made up of: earth, water, air, and fire. This theory was suggested around 450 BC, and it was later supported and added to by Aristotle

Earth, Water, Air, and Fire

Fire has been used by humans for cooking, generating heat, light, signaling, and propulsion purposes. The negative effects of fire include hazard to life and property, atmospheric pollution, and water contamination.

FIRE

Solar is a powerful source of energy that can be used to heat, cool, and light our homes and businesses. Solar energy is an important source of renewable energy. Technologies are used to diversify other energy sources, improve efficiency , save money and reduce pollution.

The solar energy development in Greece started in 2006 and was skyrocketed from 2009 onwards because of the high feed-in tariffs introduced and the corresponding regulations for domestic applications of photovoltaics (PV) on rooftops.

Development of solar power in Greece has been proposed as a way of getting Greece out of debt.

The earth is full of a wide variety of rocks and minerals which provides the soil to grow vegetation and support life.

EARTH

Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter. The adjective geothermal originates from the Greek roots γη (ge), meaning earth, and θερμος (thermos), meaning hot.

Biomass energy is another renewable resource of energy which comes from plants and plant-derived materials. Biomass can be used for fuels, power production, and products that would otherwise be made from fossil fuels.

Water is a transparent fluid which forms the world's streams, lakes, oceans and rain, and is the major constituent of the fluids of living things. Water is a liquid , but it often co-exists on Earth with its solid state, ice and gaseous state.

WATER

Hydropower or water power (from the Greek: ύδωρ, "water" ) is power derived from the energy of falling water and running water, which may be harnessed for useful purposes. Hydropower is a renewable energy source.

The common name given to the atmospheric gases used in breathing and photosynthesis is air. Although air content and atmospheric pressure vary at different layers, air suitable for the survival of terrestrial plants and terrestrial animals currently is only known to be found in Earth's troposphere and artificial atmospheres.

AIR

Wind power is extracted from air flow using wind turbines or sails to produce mechanical or electrical power. Wind energy as an alternative to fossil fuels, is plentiful, renewable, widely distributed, clean, produces no greenhouse gas emissions during operation and uses little land.

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