Solar eBiorefinery. Inspired by natural photosynthesis, biocatalytic photoelectrochemical (PEC) platforms are gaining prominence for the conversion of solar energy into useful chemicals by combining redox biocatalysis and photoelectrocatalysis. Deliberate integration of PEC systems with redox biocatalytic reactions can simultaneously produce valuable chemicals on both electrodes using solar-powered electrons and water. C. B. Park et al. demonstrate in their Communication on page 15886 how this study offers a new direction for solar biotransformations towards eBiorefinery for the sustainable synthesis of fine chemicals.