Is a break-through in solar energy upcoming?

My youngest blogpost is about the dream of deploying the billions of square meters of glass of high-rise buildings to harvest energy. Indeed, energy-producing windows exist but either their transparency, either their wattage are to low.
The American company Ubiquitous Energy is close to a break-through: highly transparant glass that is capable to harvest about 50% of the energy of ordinary thin-film solar panels.
After posting my text, I read that Ubiquitous Energy is teaming with one of the biggest glass producing companies in the world, the Japanese AGC, in order to prepare rolling out this new product.