I've had 2 companies give me an estimate on photovoltaics for my roof. I want about 125% current electricity capacity because in 4-5 years when a car dies I want replace it with a plug in electric to charge off of my house. Going grid tied. To get125ish % would have to get 327 watt panels. Both outfits told me I'm at 80% for sun. I had one tree cut down and a few branches trimmed. Roof faces almost dead south. Most of paneled area would be at 28 degree pitch. Company A said get central inverter Power maximizer http://www.tigoenergy.com/data_sheets/MM_ES_datasheet.pdf. Co B said get micro inverters instead and get creative with a couple different string set ups. Anyone have any experience with either? Don't want disappointment due to shading knocking down productivity because lots of panels are tied together.