Ladybug. Sunlight Hour Analysis problem/query

Hi all,

I have a query/problem with the Sunlight hour analysis component. Basically when I run the analysis the total sunlight hours output says I'm getting more than the total amount of hours I should actually get. I placed my model in London and according to my research I should be getting no more than 1481 hours a year or so and I'm getting like 9700 hours. Is there something I'm missing here? I'm quite new to grasshopper so I would imagine so. Also, another slight issue, but no so important. The sun path component doesn't want to accept an EPW file for some reason so I had to construct the location by myself. I'm attaching the grasshopper file in case anyone wants to check it. The rhino file is to heavy so i can't attach it.

Thanks to all!

Mikel