Hydroelectric
Heat engine
Turbine
Alternator
Transformer
Pump
Condenser
Catalyzer
Dust collector
Photovoltaic
Wind
Geothermal
Coal
Photo gallery
The transformer is a static electric machine which, by exploiting the electromagnetic induction phenomenon, turns the parameters of the incoming power, tension and current, into values of exiting current and tension that are predefined at a constant power (unless there are any trasformation losses). Schematically, a trasformer consists of two windings, each formed by a number of coils of copper wire wrapped around a highly permeable iron core. Of these, one receives energy from the feedline, whilst the other is connected to the circuits of use.

Over 60% of the electricity produced worldwide comes from burning fossil fuels: coil, fuel-oil and gas. And this percentace is bound to increase, reaching 68% by 2010 according to estimates of the International Energy Agency (IEA). Even in Europe, where nuclear production is widely implemented, the share of conventional thermoelectric generation surpasses half the total. In Italy, in 1999 the thermoelectric component (209 TWh) represented almost 80% of the total gross production. Taking into account the facilities' capacity, still in 1999, in Italy, conventional thermal power plants had a total net power of 52,584 MW, representing 71% of the total, a percentage similar to the one recorded in the World.)