New solar cells

via Technologyreview

Ultraefficient Photovoltaics
A solar cell more than twice as efficient as typical rooftop solar panels has been developed by Spectrolab.

NREL National Renewable Energy Laboratory.

Heliotube: The low cost of Concentrating PV in the familiar form of a flat solar panel Soliant

Delivers renewable electricity to complement your existing electric services. Sunedison.