Assessment 1 Directions: Read each sentence carefully. Write true if the sentence is correct and false if otherwise. Do this in your notebook or on a separate sheet of paper. 1. The primary source of energy in a geothermal power plant comes from the sun. 2. The binary cycle plant requires very high temperature water to operate. 3. The most common type of geothermal power plant is a binary cycle plant. 4. An example of a working substance is water. 5. The energy transformation from heat energy to mechanical energy happens at the condenser.​