The European Construction Technology Platform (ECTP) highlights a significant advancement in integrating green solar technologies into the built environment. Researchers from Swansea University and Delft University of Technology, under the APOLLO project, have developed a novel hybrid characterisation methodology combining time-resolved microwave photoconductivity with time-resolved photoluminescence. This technique enables quicker, more reliable measurement of key parameters such as carrier mobility and trap density in perovskite solar cells (PSCs) without damaging sensitive materials. Importantly, the innovation supports the use of environmentally friendlier solvent systems like DMPU, ethanol, and dimethyl carbonate, which, though currently demonstrating slightly lower efficiencies, have comparable long-term performance potential. This advancement aligns with the EU's objectives for safer and greener industrial practices. By combining scientific excellence with practical, scalable application, this work contributes directly to ECTP’s strategic vision: enabling safer, faster, and more sustainable construction innovations that support energy-positive buildings. The APOLLO project exemplifies the integration of renewable energy solutions into building materials, paving the way for more sustainable and energy-efficient construction practices across Europe.