Hi, I want to have a 6.5kW GT system install at my house in Freehold, NJ. Two installer came to measure my roof last week and estimate. Both same price, $6/watt installed.
One installer offer to use Suntech 200W polycrystalline panel with SMA inverter. Another uses Suntech 175W monocrystalline panel with Xantrac inverter.
When I ask about the panels, they both says their panel is more suitable for my application.
Can anyone tell me if it makes any difference. Is one (panel) better then the other? Is $6/Watt reasonable. What is the going rate in NJ. What should I really be looking for.