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Copy of renewable energy

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by

Andre Wiesel

on 3 February 2014

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Transcript of Copy of renewable energy

renewable
energy
for
the
future
of
mankind

What is renewable energy ?
Renewable energy is generally defined as energy that recover fast and inexhaustible.
In addition they are more energy-efficient and is an important point of the sustainable energy policy.

Solar energy, radiant light and heat from the sun, is harnessed using a range of ever-evolving technologies such as solar heating, solar photovoltaics.
Solar technologies are broadly characterized as either passive solar or active solar depending on the way they capture, convert and distribute solar energy. Active solar techniques include the use of photovoltaic panels and solar thermal collectors to harness the energy.
wind Energy
Electric Cars
examples of renewable energy
wind energy
electric car
pros & cons
solar energy
cons

doesn't work at night
cloudy weather
very expensive installation
require a lot of land
toxic substance inside
pros
It reduces your electricity bills.
inexhaustible source
pollution and noise free
independent
cons
Electricity varies with wind speeds.
expensive equipment
noise intensity
pros
If a lot of wind is there it can produce a good amount of energy.
governments offer tax incentives to spur wind-energy development.
cons
short range
long recharge time
costs more up front
recharge stations
poor battery lifetime ( < 5 years)
pros
environmentally friendly
small operation costs
often smaller taxes insurance
less maintenance
higher efficiency
noiseless
Ecological challenges
Economic challenges
technical challenges
Challenges
The change to renewable energies definitely poses many challenges, but these are much smaller and easier to deal with than the consequences of continue reliance on fossil fuels.
present
future
Past
Solar energy
Wind power uses the energy of wind to turn a wind turbine. Wind turbines are connected to a generator
that create electricity as they turn.
First windmill were used in Babylon 3,000 years ago.
AMAZING FACT
renewable energy
Agenda
Introduction
What is renewable energy
Why we need renewable energy
Evolution
Examples
Forecast
Conclusion
Introduction
current issue
very important for the future
more safety
environmentally friendly
independent from other nations
Why we need renewable energy
water mill
wind mill
nuclear energy
oil
lignite
nuclear energy
solar and wind
oil and gas
tidal power plant
electro cars
Green Energy
zero
energy
house
AMAZING FACT
You don't need extra equipment
In the future most cars will run on electricity from sun, wind, and water. Plug-in electric vehicles will hum along streets, giving off no exhaust.
At least that’s the vision many people are hoping will become reality. But first there are a few logistical problems to work out.
AMAZING FACT
main source of energy for all life
forms
SIMPLE FACTs
SIMPLE FACTs
SIMPLE FACTs
Hybrid Cars
New players
WW-Sales: 4.5 million cars
onshore, offshore, nearshore
biggest windpark is in the USA
Solar plant in kassel
biggest solar park is in spain
climate change
demand of oil is covered for the next 40 years
due to globalization we burn more and more fossil fuels
wind turbines and hydro power plants can damage the habitat of birds and fish
rain forests are cleared for energy crops
increase of food prices
expensive for households
the difficult to change our habits
the structure of power grid
storage of power
Opportunities
Oil and Gas imports
are decreasing
More jobs
(R&D)
conclusion
Full transcript