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Statistical Terms Primary energy consumption
Topic
Energy
Definition
Traditionally, in bp’s Statistical Review of World Energy, the primary energy of non-fossil based electricity (nuclear, hydro, wind, solar, geothermal, biomass in power and other renewables sources) has been calculated on an ‘input-equivalent’ basis. Primary energy consumption is reported in net terms. The gross calorific value to net calorific value adjustment is fuel-specific.
Fuels used as inputs for conversion technologies (gas-to-liquids, coal-to-liquids and coal-to-gas) are counted as production for the source fuel and the outputs are counted as consumption for the converted fuel.
Source
bp Statistical Review of World Energy 2020
Periodicity
Annual
Temporal Coverage
1999-2019
Note
To better assess primary energy trends, BP has decided to move to a time-dependent thermal equivalence model. The conversion factor used each year to calculate the ‘input-equivalent’ consumption for a given level of generation is based on a simplified representation of measured average efficiency levels:
1965-2000: assumed constant efficiency of 36%
2000-2017: a linear increase from 36% to 40% based on observed data
2018 onwards: the annual rate of efficiency improvement is based on the simplified assumption that efficiency will increase linearly to 45% by 2050.