Trina Solar Limited launched its high-efficiency bifacial module DUOMAX Twin at Clean Energy Expo China (CEEC Expo) 2017 in Beijing.

DUOMAX Twin generates power from both the front and back sides of the solar module and performs well even under weak light conditions, the company says in a statement. The front side receives direct sunlight while the back side receives reflected and scattered light. Compared with traditional single-sided modules, the DUOMAX Twin can deliver as much as 25% additional generating capacity.

(Read "How Does Solar Energy Work? PV Basics.")

The DUOMAX Twin enables increased energy density and more electricity generation. The company says the technology enables increased output but with the same development costs as standard modules. Because bifacial modules absorb solar radiation from both sides, they allow a variety of tilt and installation options.

Trina Solar is involved in the research and development of PERC cell technology and production, achieving what it says are several world records in mono-PERC cell conversion efficiency.

Passivated emitter rear contact (PERC) solar cells add an extra layer to the rear-side of a solar cell. This layer reflects unabsorbed light back to the solar cell for a second absorption, increasing the solar cell efficiency.

According to Taiwan-based solar market research firm EnergyTrend, the manufacturing capacity for PERC technology is expected to reach around 25 gigawatts (GW) in 2017, up from 15 GW a year ago.

Founded in 1997 as a PV system integrator, Trina Solar works with installers, distributors, utilities, and developers worldwide.