KSE

the National Power System, a set of equipment for the distribution, transmission and generation of electricity, forming a system to allow the supply of electricity in the territory of Poland.

KSP

the National Transmission System, a set of equipment for the transmission of electricity in the territory of Poland.

kV

kilo volt, an SI unit of electric potential difference, current and electromotive force; 1kV= 103 V.

kWh

kilowatt-hour, a unit of electric energy in the SI system defined as the volume of electricity used by the 1 kW equipment over one hour. 1 kWh = 3,600,000 J = 3.6 MJ.

Kyoto Protocol

the Kyoto Protocol to the United Nations Framework Convention on Climate Change of December 11, 1997 (Dz.U. of 2005, No. 203, Item 1684), in force since February 16, 2005.