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.
SolarCityâs Solar Panel System in the Long Run. My system has an estimated production of 23,830 kWh per year with a fixed cost to me at 14.8Â¢/kWh. Total payout to SolarCity for use of the solar energy will be $70,536.80 over 20 years.