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.
POWER RATING WATTS AND AMPS. Solar panels manufacturers rate solar output in watts. As a rule of thumb a rating of 15 watts delivers about 3,600 coulombs (1 AH) per hour of direct sunlight. As an example, the SP-5 panel can output .33AH per hour of direct sunlight.