MW and MWh: power is not energy
A watt measures instantaneous power. A watt-hour measures a quantity of energy over time. A 1 MW installation running at full power for one hour produces 1 MWh.
kWh, MWh, GWh and TWh: changing scale
Prefixes only change the order of magnitude. 1 MWh = 1,000 kWh; 1 GWh = 1,000 MWh; 1 TWh = 1,000 GWh. EnergyBoard mainly uses GWh for annual national generation.
toe, kgoe and Mtoe: comparing different forms of energy
Oil equivalent converts different forms of energy into a common unit. 1 toe = 1,000 kgoe. By convention, 1 toe is about 11.63 MWh, so 1 Mtoe is about 11.63 TWh.
€/kWh and €/kgoe measure different things
€/kWh is an energy price. €/kgoe is used on EnergyBoard for energy productivity: economic value generated for each kilogram of oil equivalent of energy used.
% and percentage points
A move from 20% to 25% is +5 percentage points, but a 25% relative increase. EnergyBoard uses “pt” for direct differences between percentages.
How to read key EnergyBoard pages
Installed power, not the amount of electricity generated over the year.
A quantity of energy generated over a year.
A large energy aggregate allowing country and EU-wide consumption to be compared.
Roughly €10 of economic value is produced for each kgoe accounted for by the indicator.