Size of system for grid tie?
I am new to this and am looking for the correct size system. I average 1200 kw per month.I am in NW Iowa and they bank my access power . I would like to get about 90% off my usage.I have bids from 4 contractors with different sizes from each from 7kw to11 kw .What would be the best solution? I am doing a multi pole mount and have no shade problems .Also will do seasonal tilt. Any help will be greatly appreciated
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