Terms used in official statistics

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Net transformation efficiency

Relation of total energy obtained from transformation, decreased by transformation input from own production and consumption of energy from a given transformation and used for its consumption to energy in the input and energy supplied from outside for transformation consumption. It is calculated using the formula: Sn = [( E - Epp ) : ( Ew + Ep - Epp )] x 100 [%], where: Sn is net transformation efficiency, E - energy obtained (produced) in transformation [GJ], Ew - energy contained in all commodities used for transformation input [GJ], Ep is total energy of commodities used for energy transformation consumption [GJ]. Epp - energy in energy commodities produced in the settled transformation and used for input and the same transformation consumption [GJ].

High-level terms

Contact person on methodology:
Grażyna Berent-Kowalska