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Concepts and definitions

12-month moving total

Total for the latest twelve months.

For example, the 12-month moving total for March is obtained by adding up data from the beginning of the previous year's April until the end of the current's year's March. Respectively, the total for April is obtained by adding up data from the beginning of the previous year's May until the end of the current year's April. Thus, the difference between the 12-month moving totals of April and March gives the difference between the previous year's and the current year's data for April.

Charcoal

Charcoal is a solid fossil fuel with an effective thermal value of more than 24MJ/kg in ashless substance. Coal is mainly graded according to the amount of volatile matter it contains and its thermal value.

Metallurgical coal and coke produced from it are not regarded as charcoal.

Fossil fuels

Fossil fuels refer to fuels that have been formed of biomass and stored underground millions of years ago. Fossil fuels include coal, lignite, natural gas and fuel oils refined from crude oil. In international classifications peat is often classified as fossil fuel, although it is a clearly younger fuel than them.

Petajoule

Petajoule (PJ) is a unit of energy used for expressing the energy contents of fuels and other energy sources. 1 PJ = 1,000 TJ; 1 TJ = 0.278 GWh

Referencing instructions:

Official Statistics of Finland (OSF): Consumption of hard coal [e-publication].
ISSN=1798-2588. Helsinki: Statistics Finland [referred: 19.3.2024].
Access method: http://www.stat.fi/til/kivih/kas_en.html