SOLAR PANELS: HARNESSING AN ALTERNATIVE ENERGY SOURCEMamie GaoDr. Mark McGinleyEVHM 3305-H01November 21, 2011

OVERVIEW What are solar panels? History of solar energy and solar panels How solar panels work Pros Cons Future of solar panels

WHAT ARE SOLAR PANELS?

SOLAR ENERGY ELECTRICITY

EVERYDAY SOLAR PANELS

LARGE SCALE SOLAR PANELS

PROVISIONS OF THE SUN

7TH CENTURY BC

EDMOND BECQUEREL- PHOTOVOLTAIC EFFECT

1958- AMERICAN VANGUARD

HOME DEPOT SOLAR SYSTEMS

DIFFERENT SOLAR PANEL TYPES

INSIDE OF A SOLAR PANEL

SILICON

INSIDE OF A SOLAR PANEL

SOLAR PANELS POWERING A HOUSE

QUICK SUMMARY What solar panels are

Medium that converts solar energy into electricity

History of solar panels and solar energy How they work

Solar energy excites electrons creating a current Current and voltage create power

GLOBAL CLIMATE CHANGE Major environmental issue caused by

increase in temperature and CO2 concentrations

Due to burning fossil fuels—unsustainable energy source

WORLD FOSSIL FUEL RESERVES AND PROJECTED DEPLETION

POSSIBLE SOLUTION

BENEFITS OF SOLAR ENERGY

EFFICIENCY OF PV CELLS

INCENTIVES FOR USING SOLAR PANELS

OTHER BENEFITS OF SOLAR PANELS Easy to maintain 20-30+ year lifespan Silent

OFF-GRID LIVING

MORE OFF-GRID LIVING

SOLAR PANELS USING GRID-TIED POWER

SOLAR POWER AS POWER SUPPLY

“Solar power could make a measurable worldwide contribution to the world’s power supply by the 2020 to 2030 time frame” (Hogan)

HOW SOLAR PANELS ARE MADE

CZOCHRALSKI METHOD

SOLAR CELLS SOLAR PANELS

CROSS SECTION OF A PV CELL

PROBLEMS WITH PV CELL PRODUCTION

COMPOSITION OF EARTH’S CRUST

SOLAR PANELS ARE EXPENSIVE

COOLERPLANET.COM

SOLAR PANELS IN SAN ANTONIO

BATTERIES ARE EXPENSIVE

INCLINATION OF ROOFS

GEOGRAPHIC LOCATION

IMPROVEMENT OF SOLAR PANELS

Reduce cost Reduce environmental pollution from PV cell

manufacturing

THIN-FILM SOLAR PANEL

THOUGHTS?

Do you think that it’s plausible that solar panels could become the next big thing?

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