Commission Delegated Regulation (EU) 2019/331Show full title

8. RULES FOR ASSIGNING FUELS AND EMISSIONS OF COMBINED HEAT AND POWER PRODUCTION (CHP) FOR THE PURPOSE OF UPDATING BENCHMARK VALUES U.K.

This section applies to situations where an operator, for the purpose of updating benchmark values, has to attribute inputs, outputs and emissions of cogeneration units to sub-installations.

For the purposes of this section, ‘cogeneration’ is used as defined in point (30) of Article 2 of Directive 2012/27/EU of the European Parliament and of the Council(1).

The emissions of a cogeneration unit are determined as

EmCHP = Σ ADi · NCVi · EFi + EmFGC

(Equation 8)

Where Em_CHP are the annual emissions of the cogeneration unit expressed as t CO₂, AD_i are the annual activity data (i.e. quantities consumed) of fuels i used for the CHP unit expressed in tonnes or Nm³, NCV_i the net calorific values of fuels i expressed as TJ/t or TJ/Nm³, and EF_i the emission factors of fuels i expressed in t CO₂/TJ. Em_FGC are process emissions from flue gas cleaning expressed in t CO₂.

The energy input to the CHP unit is calculated in accordance with Equation 6. The respective annual average efficiencies of heat production and electricity (or mechanical energy, if applicable) production are calculated as follows:

ηheat = Qnet /EIN	(Equation 9)
ηel = Eel /EIN	(Equation 10)

Where η_heat (dimensionless) is the annual average efficiency of heat production, Q_net is the annual net amount of heat produced by the cogeneration unit expressed as TJ as determined in accordance with section 7.2, E_IN the energy input as determined using Equation 6 expressed as TJ, η_el (dimensionless) is the annual average efficiency of electricity production, and E_el the net annual electricity production of the cogeneration unit, expressed as TJ.

Where the operator provides evidence to the satisfaction of the competent authority that the determination of the efficiencies η_heat and η_el is technically not feasible or would incur unreasonable costs, values based on technical documentation (design values) of the installation shall be used. If no such values are available, conservative default values of η_heat  = 0,55 and η_el  = 0,25 should be used.

The attribution factors for heat and electricity from CHP are calculated as

	(Equation 11)
	(Equation 12)

Where F_CHP,Heat is the attribution factor for heat and F_CHP,El is the attribution factor for electricity (or mechanical energy, if applicable), both expressed without dimension η_{ref, heat} is the reference efficiency for heat production in a stand-alone boiler, and η_ref,el the reference efficiency of electricity production without cogeneration. For the reference efficiencies the operator shall apply the appropriate fuel-specific values from the Commission Delegated Regulation (EU) 2015/2402(2) without application of the correction factors for avoided grid losses in Annex IV to that Regulation.

For attributing the energy input or emissions of the cogeneration unit to the production of heat and electricity (or mechanical energy, if applicable), the operator shall multiply the total energy input or emissions with the respective attribution factor for heat or electricity.

The specific emission factor of the CHP-related measurable heat to be used for the attribution of heat-related emissions to sub-installations in accordance with section 10.1.2 is calculated as

EFCHP,Heat = EmCHP · FCHP,Heat /Qnet

(Equation 13)

Where EF_{CHP, heat} is the emission factor for the production of measurable heat in the cogeneration unit expressed as t CO₂/TJ.

(1)

Directive 2012/27/EU of the European Parliament and of the Council of 25 October 2012 on on energy efficiency, amending Directives 2009/125/EC and 2010/30/EU and repealing Directives 2004/8/EC and 2006/32/EC (OJ L 315, 14.11.2012, p. 1).

(2)

Commission Delegated Regulation (EU) 2015/2402 of 12 October 2015 reviewing harmonised efficiency reference values for separate production of electricity and heat in application of Directive 2012/27/EU of the European Parliament and of the Council and repealing Commission Implementing Decision 2011/877/EU (OJ L 333, 19.12.2015, p. 54).