I am starting to look at this

[LAAFTERHOURS]

I am starting to look at this and wanted to know if anyone used this: http://www.affordable-solar.com/residential-solar-home/Residential-Calculator

I assume we are in the 5.5 or 6 sun days area? I am looking to zero out my bill and possibly swap out some gas components to electric (like the gas pool heater) so want some wiggle room. Based upon the calculator, its look like I need a 7 DC Kw system.