In a bid to retain their solar cell efficiency lead of Chinese rivals and gain more business in the booming Japanese market, Taiwanese solar cell producers are increasing mono c-Si PERC cell production, according to market research firm, EnergyTrend.
With PERC (Passivated Emitter Rear Cell) efficiency gains on monocrystalline wafers producing up to 1% outright efficiency improvement, compared to around 0.6% maximum on multicrystalline wafers, Taiwanese producers were said to be focused on the ramp of mono-based PERC cell production.
“PERC offers better efficiency at a competitive cost, which is causing demand for the technology to surge,” said Jason Huang, a research manager at EnergyTrend.
According to EnergyTrend, Taiwan cell producers have utilised PERC technology more than others with around 1GW of capacity already in place.
Recently, NPD Solarbuzz vice president, Finlay Collville noted in a detailed PV Tech guest blog that PERC cell technology capacity globally was expected to exceed 2.5GW by the end of 2014.
EnergyTrend said that Sunrise Global Solar Energy, a subsidiary of Sino-American Silicon was the current leader in Taiwan in migrating to PERC technology, however Motech, Gintech Energy and Neo Solar Power were all adopting the technology, which PV Tech has followed extensively on the back of tool order placements for PERC processing equipment and the rise in mono wafer production from leading suppliers such as Longi Silicon in 2014.
Japan is seen as the key market for PERC based P-type mono PERC cells due to the residential rooftop market with small roofs and relatively high FiT incentives.