TCL Solar Introduced C2 Back-Contact PV Module Range
The new series targets residential and utility-scale projects with efficiencies reaching up to 24.8%.
Updated on Sept. 28, 2026 in Energy
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TCL Solar has officially introduced its C2 back-contact photovoltaic module range to the European market. The product line includes options for both residential rooftops and large-scale utility projects.
Why it matters
This launch represents a significant expansion of back-contact solar technology, supported by parent company TCL Zhonghuan's massive conversion of manufacturing capacity to this high-efficiency format.
The C2 M module achieves a maximum efficiency of 24.8% and power output of 670 W, utilizing 132 G12R back-contact cells. The residential variant employs a gapless design, and both utilize 2.0 mm heat-strengthened front and rear glass for structural integrity.
The players
TCL Solar
A developer and manufacturer of photovoltaic power generation equipment specializing in high-efficiency module technology.
TCL Zhonghuan
The parent firm of TCL Solar, focused on scaling semiconductor and solar cell production across global supply chains.
DAS Solar
A solar technology manufacturer specializing in n-type cell research and production recently acquired by TCL Zhonghuan.
The details
Back-contact cells eliminate front-side metal grid shading by placing all electrical contacts on the rear of the cell, allowing more sunlight to reach the active silicon area. The C2 M module utilizes an n-type bifacial, double-glass construction—a design that captures light from both the front and rear faces of the panel. These modules are rated for extreme environments, maintaining performance across an operating temperature range of -40 C to 70 C and supporting a maximum system voltage of 1,500 V DC.
Timeline
Early summer 2026: The C2 module range was initially unveiled in Asian markets.
July 2026: TCL Zhonghuan completed its acquisition of DAS Solar.
Late September 2026: The product line was formally presented at the Solar & Storage Expo Conference in Vicenza.
The Tech Race
This release marks a pivot in the global race for higher-efficiency photovoltaic standards, aligning with the industry-wide transition away from traditional front-contact cells. The deployment directly follows TCL Zhonghuan's massive infrastructure project to retool 20 GW of cell capacity for back-contact architectures.
Residential users can expect a 25-year product warranty for the standard C2 residential modules, while commercial projects using the C2 M module receive a 15-year product warranty. Both module types are backed by a 30-year linear power coverage guarantee, with annual degradation capped at 0.35%.
The takeaway
The move toward back-contact modules signals a transition toward higher-density energy capture for both home and utility applications. Investors should track the progress of TCL's 20 GW capacity conversion to see if they successfully meet the 0.35% annual degradation benchmark in field installations.
Further reading
For broader trends in power production, see our coverage of Energy.
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