Category: Electricity

A plant designed to produce both heat and electricity from a single heat source. It is an efficient way to generate electricity and heat simultaneously

A combined cycle electric power plant includes gas and steam turbines and steam generators. It is a method of generating electricity with increased efficiency by using residual heat for additional electricity production. The combined cycle gas turbines (“CCGT”) improve burn utilization rates considerably. This technology exploits the residual heat emitted from the industrial gas turbines to run an additional (steam) turbine, with no extra fuel. Instead of emitting the gases to the air, its heat is exploited for further re-use

Most of the units in Israel are constructed in two stages:first a gas turbine and then a steam addition. On December 31, 2009 the Company had 8 combined cycle gas turbine generating units, 1 at Ramat Hovav, 3 at Hagit, 2 at Gezer, 1 at Alon Tavor and 1 at Eshkol, four of which at this stage use diesel (natural gas in future), and four burn natural gas (Eshkol, Gezer and Hagit. The total installed generating capacity of the eight combined cycle units is 2,848 megawatts. In addition, one industrial gas turbine (Tsafit) which, in future, will receive steam driven addition, will operate in the combined cycle format. The total installed generating capacity of this gas turbine is 248 megawatts

A large percentage of the fuel used in the generation of electricity is wasted in the form of discarded heat. Combined heat and power systems produce electricity or mechanical power and capture recoverable heat for process use

This is the total possible capacity that can be produced from the operational production units in the system, according to their available capacity, within 24 hours. As per the Optimal Dispatch operational policy, it is customary to maintain around 1100 MW, which represent two large units. This reserve is taken into account in the optimization of the allocation of the production units for operation (for Israel)

A plant designed to produce both electricity or applied thermal energy and heat from a single heat source. It is an efficient way to generate electricity and heat simultaneously Alternatively, the term is also used for desalination plants so that the dual purpose refers to the production of electricity and water.