These are great
motivating facts for those who are still wondering about the
viability of renewable energy!
- The earth
receives so much sunlight every day that if all of it were to be
converted into useful energy efficiently for just one day, the
energy needs of the whole world could be met for one whole year
- Solar Energy has been used very widely since ancient times in
the world. It was used for simple purposes such as hanging wet
clothes in the sun in order to dry them. Farmers in ancient
Egypt discovered innovative methods to ensure crops were planted
in the right direction relative to the sun's path across the sky
to make growing more efficient.
- Silicon from just one ton of sand - used to manufacture solar
cells - could produce as much electricity as burning 500,000
tons of coal.
- More than 10,000 homes in the United States are powered
entirely by solar energy.
- As of 2008, the 3rd largest industrialized nation in the world, Germany, was over 45% dependent on renewable energy
resources, with a viable working model and plan for 100%
renewable energy dependence in the future. They've proven that there no
financial or physical barriers to becoming totally renewable energy
dependent - only mental ones.
- The speed of light is 186,282 miles per second and it takes
light approximately 8 minutes to reach Earth. So, light covers
the distance of over 90 million miles from the sun in less than
- Plants grow through a process called photosynthesis in order
to convert solar energy into food. The plants serve as food for
humans and other animals which humans may eat. Therefore we get
our energy from the food we eat. In this way, we are dependent
on the sun either directly or indirectly to supply our bodies
- It takes approximately 8
calories of fossil fuel energy to produce only 1 calorie of food
energy for human consumption. Manual farming practices used
in pre-industrial times consumed approximately 1 calorie of energy to produce
approximately 10 calories of food energy for humans.
- Most governments offer
many tax incentives and rewards for those individuals who make
use of renewable sources of energy such as solar and wind
- One wind turbine
can produce enough electricity to power up to 300 homes.
- Wind farms in the US currently produce enough electricity to
meet the needs of more than 600,000 families
- The largest wind turbine in the world, located in Hawaii,
stands 20 stories tall and has blades the length of a football
- In 200 B.C., people in China and the Middle East used
windmills to pump water and grind grain.
- An average wind speed of 14 miles per hour is needed to
convert wind energy into electricity
- Wind energy is very exploited in Germany where Germany leads
the way with 8750 MW of electrical energy produced from wind
- Water power has been used
for grinding grain for more than 2,000 years.
- Worldwide, water is the most commonly used renewable energy
resource, providing enough power to meet the needs of 28.3
- Hydro power currently provides about 10 percent of the
electricity in the United States
- The Gulf Stream contains enough hydro energy to power the
entire continent of North America
- Hydropower's advantage over other renewable energy sources is
the fact that average rainfall is highly predictable and
therefore output is reliable and river flow doesn't fluctuate
from minute to minute like is the case with wind energy.
- Volcanoes and geysers are
examples of geothermal energy
- Geothermal Energy has been around for as long as the Earth has
existed. "Geo" means earth, and "thermal" means heat. So,
geothermal means earth-heat.
- In 1864, a hotel in Oregon heated rooms using geothermal
energy from underground hot springs.
- For every 100 meters you go below ground, the temperature of
the rock increases about 3 degrees Celsius. Or for every 328
feet below ground, the temperature increases 5.4 degrees
- Geothermal energy is called a renewable energy source because
the water is replenished by rainfall, and the heat is
continuously produced by the earth.
- About 10.000 years ago, Paleo-Indians used hot springs in
North America for cooking. Areas around hot springs were neutral
zones. Warriors of fighting tribes would bathe together in
- Geothermal heating is a method of heating and cooling a
building. It takes advantage of the natural stable warmth stored
in the earth. Geothermal heating is flame-less, therefore
producing no health and safety concerns as associated with