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.
High end solar panels generate 200 watts at 18 volts. Households (USA) require 120 volts, so you would need 7 panels each at 18 volts, to match the energy usage of 200 watts at 120 volts. The cost for 7 panels is about $6000.eport Abuse. Specifically, the amount of energy a solar panel can generate is it's peak rating (in watts) times the insolation averaged over an entire day (in hours), giving a value in watt-hours. For example: A 100 watt panel gets an average of 5 hours of good sun/day.