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SOLAR ENERGY
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Created on March 11, 2025
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Presentation
SOLAR ENERGY
photovoltaic panels
SUMMARY
How does this energy source work ?
What are its benefits for the environment and society ?
What are its limits or constraints ?
what examples of applications or concrete projects have been carried out ?
Why is this energy relevant in the current energy context ?
How does this energy source work ?
Tempered Glass -> protective layer Aluminium Frame -> provide support and protection Solar Cells -> convert sunlight into electricity Back Sheet -> protects against environmental damage Junction Box -> providing connections to the rest
Holes -> travel in the conventional direction Electrons -> travel in the opposite of the conventional direction EVA -> Ethylene Vinyl Acetate -> preventing external risks for Solar Cells
N-type semiconductor -> higher electron mobility P-type semiconductor -> create a positive charge carrier Solar Cells -> works like a battery
No moving parts, fast to create
Sun as its source
Reliability and long service life
What are its benefits for the environment and society ?
operates stably and faultlessly over a long period -> 25 to 30 years -> offers a long-lasting, profitable investment
solar energy is renewable, abundant and free -> sustainable energy that respects the environment -> no waste
increased durability and minimal maintenance -> faster installation and reduced production costs
What are its limits or constraints ?
sunlight dependency
doesn't produce at night
efficiency of 1/5
less competitive market
a lot of space
Concrete project : Cestas solar farm (Gironde)
Installed capacity : 300 MWp (megawatts peak) Surface area : 250 hectares Estimated annual production : 350 GWh (gigawatt hours) of electricity per year Project cost : Approximately €300 million Commissioning : in 2015 -> largest solar photovoltaic park in Europe at the time Number of homes supplied : around 100,000 homes with electricity each year Reduction in CO2 emissions: Around 140,000 tonnes of CO2 avoided per year
Examples of applications and concrete projects
Applications :
- residential solar power systems
- Utility-Scale Solar Farms
- Commercial and Industrial Solar Power