Generators installed for backup power during blackouts could help satisfy peak electricity demand. The two most important types of residential generators are portable and permanent standby. If you plan to power a few lights, your refrigerator and a furnace, a less expensive portable generator may provide sufficient power. If you intend to run your lights and furnace—along with a well pump, a freezer and other major appliances—you will need a permanent standby model.

Prime power diesel generator: A diesel generator that is designed to supply power on a constant basis and for long periods of time between shutdowns.
Standby diesel generator: A diesel generator that is operated in the event of failure of normal power. It is not designed for continuous use.
The diesel generator is treated as a mechanism to provide long-term power storage and the battery is used as a backup for short-term power storage. Emergency generator is normally power-driven by diesel engine. Diesel engines provide significant fuel economy and durability advantages for stationary diesel reciprocating engines. It is estimated that there are some 600,000 existing stationary diesel engines that are in use nationwide, with electrical generators accounting for more than half of the total. The diesel engine is nowadays the most frequently used unit, when it comes to transportation or stationary applications, because of its high effectiveness, low oil consumption and high torque generated at low RPM. The technology of the engine is constantly developing, which leads to a more and more effective use of energy in the process of oil combustion, and subsequently results in better performance at lower oil consumption. The population of stationary diesel engine is expected to continue to grow. Currently in most cases the telecommunication stations use diesel generators connected with backup batteries to provide power.


Minimizing the adverse impact of diesel engines on the environment poses a problem which is very much in focus. Solutions sought by developing various technologies and ideas, part of which propose reduction of fossil fuels consumption by increasing usage of alternative fuels.
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