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The Dark Side of Solar Energy Photovoltaic solar
14
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Page 1: The Dark Side of Solar Energy Photovoltaic solar.

The Dark Side of Solar Energy

Photovoltaic solar

Page 2: The Dark Side of Solar Energy Photovoltaic solar.

Grid Intertie Inverters

• Solar cells generate Direct Current (DC)• The grid operated on Alternating Current (AC) 60 Hz in the US and North America; 50 Hz in Europe and other places.

. The AC to DC conversion is done by a switch mode power supply (SMPS) which interrupts current flow, sending dirty electricity back into the grid

Page 3: The Dark Side of Solar Energy Photovoltaic solar.

Thermal solar

• No dirty electricity problem with thermal solar• DC solar systems without an inverter or SMPS

have no dirty electricity problem• Dirty electricity is high frequency voltage

transients and harmonics (electrical pollution) contaminating the utility 60 HZ supply

Page 4: The Dark Side of Solar Energy Photovoltaic solar.

Dirty Electricity

• Makes people and animals ill • Is a potent universal carcinogen• Is responsible for most of the diseases of

civilization• Can be detected as AM radio interference• Can be filtered of of the power supply with

capacitors

Page 5: The Dark Side of Solar Energy Photovoltaic solar.

Residential solar

Page 6: The Dark Side of Solar Energy Photovoltaic solar.

Residential solar

Page 7: The Dark Side of Solar Energy Photovoltaic solar.

Residential solar systems

Page 8: The Dark Side of Solar Energy Photovoltaic solar.

Commercial solar 23 megawattswitchgear room

Page 9: The Dark Side of Solar Energy Photovoltaic solar.

Commercial solar inverter room spectrum

Page 10: The Dark Side of Solar Energy Photovoltaic solar.

Borrego Valley 1 solar

Page 11: The Dark Side of Solar Energy Photovoltaic solar.

Borrego Valley Rd substation fence and air

Page 12: The Dark Side of Solar Energy Photovoltaic solar.

Ground wire from pole mounted transformer

Page 13: The Dark Side of Solar Energy Photovoltaic solar.

Borrego Valley Rd PNEV and air

Page 14: The Dark Side of Solar Energy Photovoltaic solar.

Commercial photovoltaic solar

• Travels in air• Travels in the earth• Travels in the utility neutral return wires