Chinese solar manufacturer Longi has unveiled its new ‘EcoLife’ series of solar modules, boasting heterojunction back contact (HBC) technology, cell efficiency of 27.3 per cent and a module efficiency of up to 25 per cent, and maximum power output of up to 510W.
Longi says it is the first time that HBC technology has been successfully implemented in a commercialised model and is “the world’s only mass-produced HJT + BC cell technology”.
It is targeted as a premium brand for the residential sector, boasting a power per square meter ratio of 250W/m² and offers 40W higher output and an increase in rooftop installation capacity of up to 9 per cent compared to other mainstream modules.
The module was launched at this year’s Intersolar conference in Munich, and starts out with two 54-cell modules available in both bifacial full black and transparent. It boasts maximum efficiency of 24.7 per cent and 25 per cent, and maximum power output of 505 and 510, respectively.
Longi says the combination of HJT and the multi-surface light absorption of back-contact (BC) designs, means the EcoLife modules can deliver full-surface passivation from all angles, which helps to reduce metal recombination loss to zero and enables open-circuit voltage exceeding 750mV.
Longi’s proprietary TaiRay wafer also serves to enhance the module’s mechanical strength, increasing rupture resistance by 16 per cent and reducing surface collapse under stress.
Bipolar passivation technology on the module’s front, sides, and back, coupled with the company’s anti-shading design results in a local temperature reduction of 28 per cent, equivalent to 38°C, as compared to traditional TOPCon cells.
The EcoLife series are also backed by Longi’s 30-year power and material warranty. Initially available in Europe from August, Longi has made no mention of whether or when the new EcoLife series will make it to Australia.
