Clean Electricity Regulations (SOR/2024-263)

Marginal note:Combustion of biomass

• The following provision is not in force.

  16 (1) For the purposes of paragraph 12(3)(b), the quantity of CO₂ emissions from the combustion of fossil fuel in a unit during a calendar year must be measured using a CEMS and is determined by the formula

  E_comb × (V_ff ÷ V_T) − E_s

  where

  E_comb

  is the quantity of CO₂ emissions from the unit, expressed in tonnes, from the combustion of fossil fuel and biomass during the calendar year, determined in accordance with section 15 or 17, as applicable;

  V_ff

  is the volume of CO₂ emissions from the combustion of fossil fuel in the unit during the calendar year, expressed in m³ at standard conditions and determined by the formula

  

  where

  i

  is the i^th fossil fuel type combusted in the unit during the calendar year, where “i” goes from 1 to n and where n is the number of fossil fuel types combusted,

  Q_i

  is the quantity of fossil fuel type “i” combusted in the unit during the calendar year, determined

  • (a) for a gaseous fuel, in the same manner used in the determination of V_f in paragraph 20(1)(a) and expressed in m³ at standard conditions,

  • (b) for a liquid fuel, in the same manner used in the determination of V_f in paragraph 20(1)(b) and expressed in kL, and

  • (c) for a solid fuel, in the same manner used in the determination of M_f in paragraph 20(1)(c) and expressed in tonnes,

  F_c,i

  is the fuel-specific carbon-based F-factor for each fossil fuel type “i” — being either the F-factor set out in Appendix A of the CEMS Protocol or, for fuels not listed in that Appendix, the F-factor determined in accordance with that Appendix — corrected to be expressed in m³ of CO₂/GJ at standard conditions, and

  HHV_i

  is the higher heating value for each fossil fuel type “i” that is measured in accordance with subsection (2) or the default higher heating value set out in column 2 of Schedule 3 for the fuel type set out in column 1;

  V_T

  is the volume of CO₂ emissions resulting from combustion of fossil fuel and biomass in the unit during the calendar year, expressed in m³ at standard conditions and determined by the formula

  

  where

  t

  is the t^th hour, where “t” goes from 1 to n and where n is the total number of hours during which the unit generated electricity in the calendar year,

  CO_2w,t

  is the average concentration of CO₂ in relation to all gases in the stack emitted from the combustion of fuel in the unit during each hour “t” — or, if applicable, a calculation made in accordance with section 7.4 of the CEMS Protocol of that average concentration of CO₂ based on a measurement of the concentration of oxygen (O₂) in those gases in the stack — expressed as a percentage on a wet basis, and

  Q_w,t

  is the average volumetric flow during that hour, measured on a wet basis by a stack gas volumetric flow monitor and expressed in m³ at standard conditions; and

  E_s

  is the quantity of CO₂ emissions, expressed in tonnes, that is released from the use of sorbent to control the emission of sulphur dioxide from the unit during the calendar year, as determined by the formula

  S × R × (44 ÷ MM_s)

  where

  S

  is the quantity of sorbent, such as calcium carbonate (Ca‍CO₃), expressed in tonnes,

  R

  is the stoichiometric ratio, on a mole fraction basis, of CO₂ released on usage of one mole of sorbent, which is equal to 1 if the sorbent is Ca‍CO₃, and

  MM_s

  is the molecular mass of the sorbent, which is equal to 100 if the sorbent is Ca‍CO₃.

• The following provision is not in force.

  Marginal note:Higher heating value (HHV_i)

  (2) The higher heating value of a fossil fuel must be measured

  • The following provision is not in force.

    (a) in the case of a gaseous fuel,

    • (i) in accordance with one of the following standards, as applicable:

      • (A) ASTM D1826, entitled Standard Test Method for Calorific (Heating) Value of Gases in Natural Gas Range by Continuous Recording Calorimeter,

      • (B) ASTM D3588, entitled Standard Practice for Calculating Heat Value, Compressibility Factor, and Relative Density of Gaseous Fuels,

      • (C) ASTM D4891, entitled Standard Test Method for Heating Value of Gases in Natural Gas and Flare Gases Range by Stoichiometric Combustion,

      • (D) Gas Processors Association Standard 2172, entitled Calculation of Gross Heating Value, Relative Density, Compressibility and Theoretical Hydrocarbon Liquid Content for Natural Gas Mixtures for Custody Transfer, or

      • (E) Gas Processors Association Standard 2261, entitled Analysis for Natural Gas and Similar Gaseous Mixtures by Gas Chromatography, or

    • (ii) by means of a direct measuring device, except that if the measuring device provides only lower heating values, those lower heating values must be converted to higher heating values;

  • The following provision is not in force.

    (b) in the case of a liquid fuel that is

    • (i) an oil or a liquid fuel derived from waste, in accordance with one of the following standards, as applicable:

      • (A) ASTM D240, entitled Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter, or

      • (B) ASTM D4809, entitled Standard Test Method for Heat of Combustion of Liquid Hydrocarbon Fuels by Bomb Calorimeter (Precision Method), and

    • (ii) any other liquid fuel type, in accordance with an applicable ASTM standard for the measurement of the higher heating value of the fuel type or, if there is no such ASTM standard, in accordance with an applicable internationally recognized method; and

  • The following provision is not in force.

    (c) in the case of a solid fuel that is

    • (i) coal, in accordance with ASTM D5865, entitled Standard Test Method for Gross Calorific Value of Coal and Coke, and

    • (ii) any other solid fuel type, in accordance with an applicable ASTM standard for the measurement of the higher heating value of the fuel type or, if there is no such ASTM standard, in accordance with an applicable internationally recognized method.