Solar technology advances as German repowering regulations face delays

Technological and regulatory developments are shaping the future of solar energy. New 'All Back Contact' (ABC) technology is increasing efficiency by moving metal contacts to the rear of the solar cell. This reduces shading on the front surface, allowing for higher light absorption. While manufacturers like Aiko report efficiencies near 24%, the technology currently faces higher costs and a lack of long-term field data.

In Germany, legal complexities surround the 'repowering' of existing rooftop photovoltaic systems. While the Solarpaket I aims to allow operators to replace old modules with more efficient ones without losing existing EEG feed-in tariffs, the regulation is currently stalled. Due to pending EU state aid approval, farmers and owners who replace functional modules now risk losing their original subsidies.