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

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

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

Residential solar

Residential solar

Residential solar systems

Commercial solar 23 megawattswitchgear room

Commercial solar inverter room spectrum

Borrego Valley 1 solar

Borrego Valley Rd substation fence and air

Ground wire from pole mounted transformer

Borrego Valley Rd PNEV and air

Commercial photovoltaic solar

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