SunPower subsidiary sues SolarCity over IP infringements

September 27, 2016
Facebook
Twitter
LinkedIn
Reddit
Email
SunPower is planning to ramp Cogenra's overlapping cell to cell contact technology in its P-Series modules.

Cogenra Solar, a subsidiary of US-based high-efficiency module manufacturer SunPower, has filed a lawsuit against SolarCity over claims of IP (Intellectual Property) theft and infringement over its direct solar cell to cell contact technology that is often described as an overlapping shingle-like pattern.

The case in the US District Court, Northern District of California, relates to claims that SolarCity’s subsidiary, Silevo, gained access to sensitive IP during a due diligence process ahead of a potential investment in Cogenra before the company was eventually sold to SunPower. 

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

According to reports, SolarCity has already counter claimed that a previous employee of the company had downloaded confidential information ahead of joining SunPower as a senior sales manager.

Both of SolarCity’s nearest rivals in the US residential and commercial rooftop markets, SunPower and SolarWorld have now tried different tactics to restrict the company from competing ahead of SolarCity starting solar cell and module production at its 1GW manufacturing plant in Buffalo, New York state. 

Potentially, SolarCity has a high-efficiency low-cost solar cell technology with larger nameplate capacity to seriously compete with both SunPower and SolarWorld product offerings in the US residential and commercial rooftop markets.

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023, 2024 and 2025 were a sell out success and 2026 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

Read Next

February 6, 2026
Chinese solar PV manufacturer Aiko Solar will license a raft of solar cell technology patents from Singapore-based manufacturer Maxeon.
February 6, 2026
Lithuanian independent power producer (IPP) Green Genius has commenced operations of its 120.8MW solar project in Jekabpils region, Latvia.
February 6, 2026
The Australian government has launched a formal inquiry into the reuse and recycling of solar modules across the country.
February 5, 2026
Vietnam is the cheapest country to produce fully domestic solar modules outside of China, according to a report from the International Renewable Energy Agency (IRENA).
February 5, 2026
Explainer: Two new studies offer fresh insights into the performance of TOPCon solar modules, including a new degradation mode related to encapsulants.
February 4, 2026
In the wake of Russia’s invasion of Ukraine, European energy has gone from an overreliance on Russia to an overreliance on China.

Upcoming Events

Upcoming Webinars
February 18, 2026
9am PST / 5pm GMT
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA