ETC Solar

Invisible contacts for solar cells

ETC Solar is commercializing world’s highest performance front contact technology for solar cells: effectively transparent contacts (ETCs). ETCs are the first industrially viable approach to mitigate shading losses; the largest practical loss in nearly all types of solar cells. ETC Solar received multiple grants, awards and prizes. In addition, we hold eight (8) international patents that cover the ETC technology. We are currently testing with potential customers and are working on finishing our products.


ETC Solar was founded in 2017 out of the labs of Dr. Harry Atwater at Caltech. In addition, ETC Solar spun out off the University of Twente in 2018 to target the European market. ETC Solar was founded by Dr. Harry Atwater, Dr. Rebecca Saive and Mr. Thomas Russell.

Thomas Russell

Dr. Rebecca Saive

Dr. Harry Atwater
Scientific Advisor

Marnix Rebergen
Lead Tool Development

Dr. Michael Kelzenberg
Lead Process Development

Vivek Shah
R&D Scientist

Our Technology is under development.


Rocket Fund Award
2017 & 2018

1st Place DOE National Cleantech Competition 2018

1st Place FLOW’s Western Region
Business Plan Competition

NSF I-Corps Grant 2018

CalSEED grant phase I
California Energy Commission

SBIR phase I grant

American Made Solar Prize | Ready phase

Topsector Energy: TKI grant

Category Energy 2019

Say Hello!

If you are an interested commercial partner or want to hear more about ETC Solar, we’d love to hear from you. Please contact us.