Here is the glossary

CCGT Combined cycle gas turbine – these turbines are typically fuelled by natural gas and are used to drive generators to produce electricity. The exhaust gases are then passed through a boiler to produce steam that in turn drives an additional turbine coupled to a generator.

Cogeneration The simultaneous generation of heat and electricity, typically where the need for both arises for industrial or commercial purposes.

GW Gigawatt; one gigawatt equals 1,000,000 kW.
GWh Gigawatt-hour; one GWh represents one hour of electricity consumption at a constant rate of 1 GW.
Heat Rate A measure of the thermal efficiency achieved by a power station.
Humification The rapid decaying of plant materials, results in the formation of peat.
ISO 14001 The international standard for environmental management systems.
kW Kilowatt; a kilowatt is a unit of power, representing the rate at which energy is used or produced (ie, the product of voltage and current).
kWh Kilowatt-hour; one kWh represents one hour of electricity consumption at a constant rate of 1 kW.
MW Megawatt; one MW equals 1,000 kilowatts.
MWh Megawatt-hour; one MWh represents one hour of electricity consumption at a constant rate of 1 MW.
NOx Oxides of nitrogen.
OCGT Open cycle gas turbine – these turbines, typically fuelled by gas-oil, are used to drive the generators to produce electricity.
Peak Load The maximum demand during a specified period. This may require use of plant (for example, pumped storage) that is generally idle.
SO2 Sulphur dioxide.
TW Terawatt; one TW equals 1,000,000 MW.
TWh Terawatt-hour; one TWh represents one hour of electricity consumption at a constant rate of 1TW