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.
Assessing financial viability of solar panel installations- recap. Overall (Average) Solar panels cost (from recently updated figures in 2013) ranges between $1750 â $2500 per Kw of installed capacity (average Solar panel cost per kw). This figure includes purchasing the equipment and cost for solar panel installation.