1. Determine the amount of electricity (kWh) consumption and the electricity rate
It is important to determine the amount of electricity consumption per year for better understanding the economics of installing a solar system. On your utility bill, your electricity usage is summarized wherein natural gas usage should be excluded. As the path of the sun varies with the seasons, a solar PV system would offset your electricity demands mostly in the summer months. It should be also considered that most utility companies have a tier rate structure based on consumption patterns and state mandates. A small PV system significantly helps to reduce your electricity demands for moving you to a different tier, minimize your rates and saves your money.
2. Determine your available roof space (sq-ft)
Knowing your available roof space is crucialfor determining the quantity ofsolar panels you can actually use. Based on the size of y…