Night Lights & Light Nights

From being totally dark at night, our back garden/field has been transformed into this (taken at 2am):

Those are views from upstairs and downstairs. It's to do with the electrification of the Great Western line and the welfare cabins that have been built on the common, but the hours the lights were on was strange - perhaps there was a break-in.

I sense an opportunity - we could rent the field out to a football club as a floodlit stadium...