The efficiency of the photovoltaic panel, i.e. the conversion ratio between irradiation and power generated, goes from 10% of the previous thin film product to more than 20%, at module level. The HJT approach enables solar cell to outperform with respect to other commercially available solar cells. In February 2020, 3Sun EGP PV Innovation Group has demonstrated that the efficiency of industrial scale solar cell can achieve even more than 24.5% (cell area of 244.3 cm2, industrial standard size).