Suncurves is a website where users can find precise sun exposure information for any address in the world. The unique thing about Suncurves is that shading from terrain is taken into account. This means that correct sunrise and sunset times can be found, even in mountainous regions. Number of sun hours per month and per year can be found as well as sun hours lost due to shading from terraing. Demo sites can be found here : http://www.suncurves.com/demo/.