Building the Solar System Part 2

I successfully installed a 480 Watt solar system on my balcony. The system consists of a charge controller (40A), two 6 volt 230 AH batteries tied in series to generate 12 V, three 160 Watt panels, and a 2300 Watt DC-to-AC inverter. The only draw back so far has been the DC-to-AC converter. which uses a modified sine wave, that causes some harmonic distortion when plugged into the TV.