How is energy produced in the light dependent reaction of photosynthesis?

First things first, we need to be aware of where the light dependent reaction takes place in the plant cells. It happens in the chloroplasts and specifically in the thylakoid membranes of the chloroplasts. As we know, the light energy hits photosystem 2 which excites the electrons in that photosystem and shoots them out into the chlorophyll which moves them up to a higher energy level, this also happens simultaneously in photosystem 1. Energy is produced by the electrons at the higher energy level moving down the electron transport chain to a lower energy level which means those electrons lose energy in the form of ATP. At the same time as this is happening, light is splitting water atoms in a process called photolysis which is the splitting of water into protons and oxygen molecules. The ATP produced from the electron transport chain is used to create a proton gradient by forcing the protons formed by photolysis into the thylakoid. This results in a high concentration of protons in the thylakoid and a low concentration of protons outside the thylakoid. So, the protons move down the proton gradient ,and out of the thylakoid, through an enzyme called ATP synthase and the energy from this movement converts ADP and inorganic phosphate into ATP.