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.
As you can see above, the average solar panel these days is about 3 feet by 5 feet (15 square feet) and puts out about 190 watts of electricity. That makes it simple to see how many panels you can fit and how much electricity they would be rated for: Take your available square footage and divide by 15.