Photosynthesis, the chemical reaction that enables almost all life on Earth, is extremely inefficient at capturing energy—only around 1% of light energy that a plant absorbs is converted into chemical energy within the plant.
So they’re basically trying to convert plants into chemoorganotrophs instead of photoautotrophs? Not really ground breaking and many organisms already do this just steal it from the many examples metabolic pathways. Also these chemicals still get produced using sunlight so what are they trying to prove? That plants themselves don’t need sunlight? Hydroponics already does this with vertical stacking.