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.
A solar energy system priced at $1/Watt would unlock the potential of the sun to provide lowâcost, clean limitless electricity to the U.S. and the rest of the world, at the same cost of coalâbased generation.he U.S. Department of Energy (DOE) estimates that a $1/watt installed photovoltaic solar energy system â equivalent to 5â6 cents/kWh â would make solar without additional subsidies competitive with the wholesale rate of electricity, nearly everywhere in the US.