Environtmental and Global Health

Posts Tagged ‘renewable energy’

Solar energy

Solar energy transforms sunlight into electricity. It does so directly using photovoltaics, or indirectly through concentrated solar power.
The concentrated solar energy systems use lenses or solar panels that collect energy from the sun. Photovoltaic solar panels use semiconductor materials, thus converts sunlight into electricity through the photoelectric effect.

Solar Thermal Energy

Solar thermal uses the sun’s energy to generate heat or thermal energy. The energy collected by solar panels or solar collectors energy is concentrated and used to heat domestic water or industrial. Read the rest of this entry »

Renewable energy is clean energy that contributes to caring for the environment. Faced with the polluting effects and depletion of fossil fuels, renewable energies are now an alternative.

What is renewable energy?

- Renewable energy comes from natural sources that are inexhaustible. Energy from sources like the sun, air, water, biomass and so on.
- Renewable energy compared to fossil fuels
- Faced with the polluting effects of fossil fuels like oil or coal, renewables are less carbon emissions, recycle and are kinder to the environment. Read the rest of this entry »

The availability of energy from renewable energy sources is higher than conventional energy sources, but its use is restricted. Technological developments, the increase of social demand and lower installation cost and rapid depreciation, which encourages the use of a source of renewable energy sources in recent years.

Similarly, the challenges to sustainable development model and the change towards a sustainable development model implies a new conception of the production, transportation and energy consumption.

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