RENEWABLE ENERGY DEFINITION, BENEFITS, AND FACTS.
                     RENEWABLE ENERGY: 
DEFINITION, 
BENEFITS, AND FACTS
What Are Renewable Energies? 
• Renewable energies (or renewables) are ways to generate 
energy from (theoretically) unlimited natural resources. 
• These resources are either available with no time limit or 
replenish more quickly than the rate at which they are 
consumed.
Source: youmatter.world
Solar Energy
• This type of renewable energy comes directly from the capture 
of solar radiation. Here, the solar radiation is absorbed by 
specific sensors and rebroadcasted following 2 possible 
operation modes:
– Capturing sun rays and directly converting them into energy through 
photovoltaic solar panels;
– Capturing, collecting and turning the sunlight into heat that warms 
up water or air.
Source: youmatter.world
Wind power
• Wind power is another renewable energy. Here, the wind’s 
kinetic energy makes turbines spin and creates a mechanical 
movement. Afterward, a generator transforms this mechanical 
energy into electricity.
• There are several types of wind renewable energies: onshore 
wind turbines, off-shore wind turbines and even floating wind 
turbines.
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Hydro-Electric Power
• Hydro-electric power consists in the transformation of the 
kinetic energy of the water (from rivers, dams, marine currents 
or tides)  into mechanical energy by turbines.
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Biomass
• Biomass is made up of organic materials from plants or animals 
that contain stored energy. The combustion of these natural 
materials produces renewable energy
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Geothermal Power
• The Earth generates and stores geothermal energy. In other 
words, radioactive materials decaying inside the Earth are 
emitting energy. 
• There are 3 main ways to use geothermal energy:
– Generating electricity directly from the Earth’s heat;
– Producing heat directly from hot water boiling on the planet’s 
surface;
– Using pumps over the shallow ground to heat (and also to cool) 
buildings.
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Benefits: Prevent Climate Change
• The biggest benefit of most renewable energy sources is that 
they don't emit the greenhouse gases that cause global 
warming. For that reason, renewable energy is a powerful tool 
to prevent further climate change.
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Benefits: Reduces dependence on 
imported fuels 
• Increasing the nations' reliance on renewables diversifies its 
source of energy. That reduces its dependence on imported 
fuels and improves national security.
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Benefits: Employment
• The renewable industry creates economic development and 
jobs in manufacturing, installation, and operations.
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The Bottom Line
• Considerable investments in renewable energy must be made if 
the world wishes to fight climate change. 
• Heating systems and transportation must be redesigned to run 
efficiently on electricity alone. 
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