Oxford Photovoltaics has the potential to revolutionize the whole industry

Oxford Photovoltaics is an Oxford University spin-out company that is developing a low cost, sustainable transparent solar cell coating that can be printed on building glass. Less toxic than traditional solar cells, it can be used on the glass facades of commercial buildings to convert sunlight to electricity. 

Here a few links with more information on the technology and a video from the founder:

http://www.theguardian.com/environment/2013/feb/12/printed-solar-glass-panels-oxford-photovoltaics

http://www.oxfordpv.com/oxford-pv-news/oxford-solar-cell-pioneer-named-as-only-uk-scientist-in-nature-s-top-10

https://www.innovateuk.org/-/the-future-of-solar-power-is-oxford-photovoltaics