MICDS

Tim Oliver, CFO, MEMC Electronic Materials

November 12, 2010

MEMC Headquarters in St. Peters

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What Does MEMC Do?

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Wafers become Semiconductors…which become the electronics we use every day.

Wafers also become solar cells…which generate the clean power of today and tomorrow.

We make the wafers.

The Solar Opportunity

Non-Renewable Energy Source (All remaining on planet)

Renewable Energy Source (1 Year)

Wind

Coal

Ocean Thermal

UraniumPetroleumNat. Gas Tar Sands

Bio Fuel Hydro GeothermalTidal

More Energy Hits the Earth From the Sun in 15 hours Than Can be Generated From All of the Oil Remaining in the World!

Solar

Solar Energy Availability vs. Other Energy Sources

Source: NREL

World Energy Needs

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More Solar Energy Can be Generated in Some StatesHours of Solar Energy Potential Per 1KW Installed Capacity

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Solar Cells and Wafers

• Thin wafers of silicon• Similar to computer chips, bigger and cheaper

• Light carries energy into cell

• Cells convert sunlight energy into electric current- they do not store energy

• Sunlight is the “fuel”

Solar Wafer

Solar Cell

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Solar Power

Cells

Modules

ArrayStrings

Inverter

Sun – Energy Source

PV Modules – Convert Sunlight into electric current.

Inverter – Changes electricity from DC to AC for use in home or building.

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Our Solar Power Plants

Alamosa, Colorado

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Rifle, Colorado

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San Diego (Otay Mesa Water Treatment Facility)

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Laguna Nigel, California (Kohl’s Store)

Kohl’s - 409 KW - Laguna Nigel, CA Crystalline panels, fixed tilt,

roof mount.

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Rovigo, Italy

72 MW - Rovigo, Italy. Crystalline panels, fixed tilt, ground mount.

Largest being built in Europe.

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Killingly, Connecticut (Staples Store)

Staples - 486 KW - Killingly, CT Thin film panels, fixed tilt,

roof mount.

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Gresham, Oregon

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San Diego, California

City of San Diego - 1.1 MW - San Diego, CA Crystalline panels, fixed tilt, ground-mount on

steel.

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California State University Ironwood Prison, California

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Cotton Grove, NC

Duke Energy- 3.9 MW – Cotton Grove, NCCrystalline panels, one axis,

ground mount.

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Workers Install Solar Power Plants

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Remotely Monitor Power Plants

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MICDS

Tim Oliver, CFO, MEMC Electronic Materials

November 12, 2010