I have just finsished fitting Solar Panels on my Bungalow in Ireland. It took me 6 weeks, 430 Euro and this information package to fit out my House, Garage and Shed with Solar Panels.If you live in a place that has more sun than Ireland(almost everywhere), then it should take you 2-4 weeks. Anyway, I really want to suggest to you this product. It kicks ass and has saved me (roughly) 6000 Euro on getting someone else to fit Solar Panels in my House.