Hybrid Technologies

Hybrid systems can be defined as “a combination of different, but complementary energy supply systems at the same place” (Weber, R, 1995)
Fluctuation of energy supply and intermittent delivery of power can be avoided by the use of hybrid systems. A system using complementary energy supply technologies has the advantage of being able to supply energy even at times when one part of the hybrid system is not available.

There are many types of hybrid systems derived from the combination of different renewable technologies and, often, including also diesel generating set. ie. PV/wind; wind/diesel; wind/PV/micro hydro; wind/small hydro; small hydro/biomass; wind/PV/biomass etc

A common hybrid system suitable for developing countries consists of:

• A primary source of energy, i.e renewables
• A secondary source of energy for supply in case of shortages ex. Diesel
• A storage system to guarantee stable output (battery) during short periods of time and/or meet peak demands.
• A charge controller which regulates the state of load of the battery
• Installation material (safety boxes, wiring, plugs etc)
• Appliances (TV, radio, etc)
• DC/AC inverters may also be needed.