A pyramid of energy displays four levels of light energy or chemical energy from the bottom to top of the pyramid. They include the following:

1. Primary producer
2. First-level consumer
3. Second-level consumer
4. Third-level consumer

Each energy level has the following percentage of heat moving out as Light Energy or Chemical energy:

1. Primary producer: 100%
2. First-level consumer: 10%
3. Second-level consumer: 1%
4. Third-level consumer: 0.1%