When you want to retrieve data from a database, you ask for the data by using Structured Query Language, or SQL. SQL is a computer language that closely resembles English, but that database programs understand. Every query that you run uses SQL behind the scenes.
The inverter turns the DC electricity generated by the solar panels into 120-volt AC that can be put to immediate use by connecting the inverter directly to a dedicated circuit breaker in the electrical panel.
Typically, a 3kW to 4kW solar panel system will produce enough energy for a family sized home, while a 2kW to 3kW will typically be the right size for a smaller household. An average 4 kW solar panel system will generate around 3,400kWh of free electricity a year. Thatâs enough electricity to individually power: