In a distributed database system, a program often referred to as the database's back end runs constantly on a server, interpreting data files on the server as a standard relational database. Programs on client computers allow users to manipulate that data, using tables, columns, rows, and fields.
A solar energy system big enough to power a computer and a few other small items might cost you about $700 to $1000. These are also well suited for RVs, boats and camping. Learn more about portable solar energy units.
How much does solar energy cost? An average residential solar system costs between $15,000-$25,000 after solar rebates and solar incentives. Considering that you will probably spend over $72,000 in electrical bills over the next 25 years, this can be a small price to pay. Some companies even offer solar lease options in which you pay no out-of-pocket expenses for the installation.