Concept:Potential energy is stored energy that can be converted to do work. In an ecosystem, producers capture sunlight and store it as chemical energy, making them the primary energy source for all other organisms.Explanation:Energy flows through a food chain from producers to consumers and decomposers. According to the 10% law, only about 10% of energy is passed from one trophic level to the next; the rest is lost as heat.Producers receive the full solar energy directly, while consumers and decomposers get only a fraction of that stored energy.Therefore, the highest amount of potential energy is present in producers, as they are the first to capture and store energy from the sun.