There’s a great article in the Guardian about how lower cost solar panels could change the industry significantly:
John J Licata:
I believe this new printing medium could be a game-changer as 3D solar cells, despite advances in energy storage, can capture more sunlight than conventional PV models. How? They are more precise (using copper, indium, gallium, selenide: CIGS), less complex and weigh less. Greater efficiency in lieu of not having direct sunlight overhead is something I believe is extremely encouraging for 3D solar considering many pessimists who continue to question the longevity of solar power produced in a day by ordinary flat PV cells. Researchers at the Massachusetts Institute of Technology (MIT) believe 3D solar panels could be roughly 20% more efficient than flat solar panels. 3D printing can extend the amount of solar absorbed into cells, which may turn some haters of solar power into believers.
Another benefit is cost. While installation is the dominate cost for solar power, it is estimated that precision 3D printing could drop production costs by 50% by eliminating many of the inefficiencies associating with the waste of costly materials such as glass, polysilicon or even indium. The ability to control the material inputs of your finished solar product would further turn traditional manufacturing of PV on its head by creating more of an on-demand model that doesn’t require fabrication at distant warehouses. The fact 3D printing can take place just about anywhere should mitigate the lofty shipping costs which also deters positive views toward traditional flat PV.