The DC disconnect switch allows professional electricians to disconnect the photovoltaic array from the rest of the system. Click here to see technical specifications of the inverter we use. The transformer ensures that the voltage of the electricity coming from the inverter is compatible with the voltage of the electricity in the school building. The AC disconnect switch allows professional electricians to disconnect the school's electrical system from the solar photovoltaic system. The electric meter keeps track of the amount of electrical energy produced by the solar photovoltaic system and sends electronic signals to the data acquisition system where they are recorded.
Electrical energy is measured in kilowatt-hours .
We're glad you asked. Use our calculator to find out. The data acquisition system receives signals from the weather station and the electric meter. It runs a computer program to calculate and record the weather conditions and electrical output of the system every fifteen minutes, and it allows students, teachers, and Watts On Schools staff to log in and download information from the school or offsite. The school's electrical distribution panel receives electricity generated by the solar photovoltaic system, combines it with other electricity supplied by the school's electric utility company, and routes the energy to the school's classrooms to power lights, computers, and other energy consuming devices.