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.
Solar panels differ but in general a 250 W solar panel will produce 1 kW per day if the panel receives 4 hours of direct sun. This means that you will need 24 panels to produce 24 kWh per day. Roof space