Dirty electricity is high frequency voltage transients not the standard 60 hz smooth sinewave. Because of the process of converting DC to AC solar systems can produce quite a lot of dirty electricity ! The dissipative noise attenuation (D.N.A.) products to remove dirty electricity from wiring can be bought here. Dirty Electricity Removal - Quality Dirty Electricity Filters The DNA Line Filter will greatly reduce dirty electricity BEFORE it goes onto the AC buildings wiring! It is best solution if want to reduce dirty electricity emf created by off grid solar systems . Homes with SOLAR can have highest levels of dirty electricity.