HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"L 123/44
EN
Official Journal of the European Union
9.5.2012
COMMISSION IMPLEMENTING DECISION
of 7 May 2012
concerning the determination of start-up and shut-down periods for the purposes of Directive
2010/75/EU of the European Parliament and of the Council on industrial emissions
(notified under document C(2012) 2948)
(Text with EEA relevance)
(2012/249/EU)
THE EUROPEAN COMMISSION,
This Decision shall apply to combustion plants covered by
Chapter III of Directive 2010/75/EU.
Having regard to the Treaty on the Functioning of the European
Union,
Article 2
Having regard to Directive 2010/75/EU of the European
Definitions
Parliament and of the Council of 24 November 2010 on
industrial emissions (integrated pollution prevention and
For the purposes of this Decision the following definitions
control) ( 1 ), and in particular point (a) of the first paragraph
apply:
of Article 41 thereof,
Whereas:
(1) ‘minimum start-up load for stable generation’ means the

minimum load compatible with the steady operation of
(1) Directive
2010/75/EU
does
not
determine
start-up
and
the generating combustion plant following start-up
shut-down periods, while those periods relate to several
initiation after which the plant is able to safely and
provisions in that Directive.
reliably deliver its output to a network, grid, heat
accumulator or industrial site;
(2) For
combustion
plants
covered
by
Chapter
III
of
Directive 2010/75/EU, the determination of start-up
(2) ‘minimum shut-down load for stable generation’ means the
and shut-down periods is required for assessing
minimum load at which point the plant can no longer
compliance with the emission limit values set out in
safely and reliably deliver its output to a network, grid,
Annex V to Directive 2010/75/EU, taking into account
heat accumulator or industrial site and is considered to be
Part 4 of that Annex, as well as for determining the
shutting down.
number of operating hours of the combustion plants,
where it is relevant for the implementation of that
Directive.
Article 3
General rules for determining start-up and shut-down
(3) Article
14(1)(f)
of
Directive
2010/75/EU
requires
the
periods
permit to include measures relating to conditions other
than normal operating conditions, such as start-up and
For determining the end of the start-up period and the
shut-down operations. In accordance with Article 6 of
beginning of the shut-down period, the following rules shall
Directive 2010/75/EU, such measures can be included in
apply:
general binding rules.
(1) the criteria or parameters used to determine start-up and
(4) The
emissions
from
combustion
plants
during
start-up
and shut-down periods are generally at elevated concen
shut-down periods shall be transparent and externally
trations compared to normal operating conditions. In
verifiable;
view of the objective of Directive 2010/75/EU to
prevent emissions, those periods should be as short as
(2) the determination of start-up and shut-down periods shall
possible.
be based on conditions allowing a stable generation process
safeguarding health and safety;
(5) The
measures
provided
for
in
this
Decision
are
in
accordance with the opinion of the Committee estab
(3) periods during which a combustion plant, after start-up, is
lished by Article 75 of Directive 2010/75/EU,
operating stably and safely with fuel supply but without the
HAS ADOPTED THIS DECISION:
export of heat or electricity or mechanical energy shall not
be included in the start-up or shut-down periods.
Article 1
Subject matter and scope
Article 4
This Decision lays down rules concerning the determination of
Determination of start-up and shut-down periods in the
the start-up and shut-down periods referred to in point (27) of
permit
Article 3 and in point 1 of Part 4 of Annex V to Directive
1. For
the
purposes
of
the
determination
of
start-up
and
2010/75/EU.
shut-down periods in the permit of the installation comprising
the combustion plant, the measures referred to in Article 14(1)(f)
( 1 ) OJ L 334, 17.12.2010, p. 17.
of Directive 2010/75/EU shall include:

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EN
9.5.2012 Official
Journal
of
the
European
Union L
123/45
(a) at least one of the following:
plants consisting of two or more units shall only consist of the
start-up period of the first combustion unit starting up and the
shut-down period of the last combustion unit shutting down.
(i) the end point of the start-up period and the start point
of the shut-down period expressed as load thresholds, in
accordance with Articles 6, 7 and 8 and considering
For combustion plants for which points 2, 4 and 6 of Part 1 of
that the minimum shut-down load for stable generation
Annex V to Directive 2010/75/EU allow the application of an
may be lower than the minimum start-up load for stable
emission limit value to part of the plant discharging its waste
generation as the combustion plant may be able to
gases through one or more separate flues within a common
operate stably at a lower load once it has reached a
stack, the start-up and shut-down periods may be determined
sufficient temperature following a period of operation;
for each of those parts of the combustion plant separately. The
start-up and shut-down periods for a part of the plant shall then
consist of the start-up period of the first combustion unit
(ii) discrete processes or thresholds for operational
starting up within that part of the plant and the shut-down
parameters, which are associated with the end of the
period of the last combustion unit shutting down within that
start-up period, and with the start of the shut-down
part of the plant.
period, and which are clear, easily monitored and
applicable to the technology used, as set out in
Article 9;
Article 6
Determination of start-up and shut-down periods for
(b) measures ensuring that the start-up and shut-down periods
combustion plants generating electricity or delivering
are minimised as far as practicable;
power for mechanical drive using load thresholds
1. For
combustion
plants
generating
electricity
and
for
(c) measures ensuring that all abatement equipment is brought
combustion plants for mechanical drive, the start-up period
into operation as soon as is technically practicable.
shall be considered to end at the point when the plant
reaches the minimum start-up load for stable generation.
For the purposes of the first subparagraph, account shall be
taken of the technical and operational characteristics of the
2. The
shut-down
period
shall
be
considered
to
begin
at
the
combustion plant and its units, and the technical requirements
initiation of termination of fuel supply after reaching the point
for operating the abatement techniques installed.
of the minimum shut-down load for stable generation from
where on generated electricity is no longer available for the
grid or generated mechanical power is no longer useful for
2. If any aspects relating to the plant that affect start-up and
the mechanical load.
shut-down periods change, including the installed equipment,
fuel type, plant role in the system and installed abatement tech
niques, the permit conditions related to start-up and shut-down
3. The
load
thresholds
to
be
used
for
determining
the
end
of
periods shall be reconsidered and, if necessary, updated by the
the start-up period and the start of the shut-down period for
competent authority.
electricity generating combustion plants and to be included in
the plant’s permit shall be a fixed percentage of the rated elec
trical output of the combustion plant.
Article 5
Determination of start-up and shut-down periods for
combustion plants consisting of two or more units
4. The
load
thresholds
to
be
used
for
determining
the
end
of
the start-up period and the start of the shut-down period for
1. For
the
purpose
of
calculating
the
average
emission
values combustion plant for mechanical drive and to be included in
as set out in point 1 of Part 4 of Annex V to Directive
the plant’s permit shall be a fixed percentage of the mechanical
2010/75/EU, the following rules shall apply for determining
power output of the combustion plant.
the start-up and shut-down periods of combustion plants
consisting of two or more units:
Article 7
(a) the values measured during the start-up period of the first
Determination of start-up and shut-down periods for heat
unit starting up and during the shut-down period of the last
generating combustion plants using load thresholds
combustion unit shutting down shall be disregarded;
1. For
heat-generating
combustion
plants,
the
start-up
period
shall be considered to end when the plant reaches the minimum
(b) the values determined during other start-up and shut-down
start-up load for stable generation and heat can be safely and
periods of individual units shall be disregarded only if they
reliably delivered to a distributing network, to a heat
are measured or, where no measurement is technically or
accumulator or used directly on a local industrial site.
economically feasible, calculated separately for each of the
units concerned.
2. The
shut-down
period
shall
be
considered
to
begin
after
reaching the minimum shut-down load for stable generation
2. For the purpose of point (27) of Article 3 of Directive
when heat can no longer be safely and reliably delivered to a
2010/75/EU, the start-up and shut-down periods of combustion
network or used directly on a local industrial site.

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L 123/46
EN
Official Journal of the European Union
9.5.2012
3. The
load
thresholds
to
be
used
for
determining
the
end
of be defined, with the end of start-up or start of shut-down
the start-up period and the beginning of the shut-down period
periods reached when at least two of the criteria have been met.
for heat generating combustion plants and to be included in the
plant’s permit shall be a fixed percentage of the rated thermal
output of the combustion plant.
These criteria shall be chosen from the following:
4. Periods
in
which
heat-generating
plants
are
heating
up
an
accumulator or reservoir without exporting heat shall be
(1) discrete processes set out in the Annex or equivalent
considered as operating hours and not as start-up or shut-
processes that suit the technical characteristics of the plant;
down periods.
(2) thresholds for the operational parameters set out in the
Article 8
Annex, or equivalent operational parameters that suit the
Determination of start-up and shut-down periods for
technical characteristics of the plant.
combustion plants generating heat and electricity using
load thresholds
Article 10
For combustion plants generating electricity and heat, the start-
This Decision is addressed to the Member States.
up and shut-down periods shall be determined as set out in
Articles 6 and 7, taking into account both the electricity and
heat generated.
Done at Brussels, 7 May 2012.
Article 9
Determination of start-up and shut-down periods using
operational parameters or discrete processes
For the Commission
For determining the minimum start-up load and the minimum
Janez POTONIK
shut-down load for stable generation, at least three criteria shall
Member of the Commission

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EN
9.5.2012 Official
Journal
of
the
European
Union L
123/47
ANNEX
DISCRETE PROCESSES AND OPERATIONAL PARAMETERS ASSOCIATED WITH START-UP AND
SHUT-DOWN PERIODS
1. Discrete
processes
associated
with
the
minimum
start-up
load
for
stable
generation
1.1. For solid fuel-fired boilers: complete transition from using the stability auxiliary burners or supplementary burners to
operating with normal fuel only.
1.2. For liquid fuel-fired boilers: start of the main fuel feed pump and when burner oil pressure stabilises, and for which
fuel flow rate may be used as an indicator.
1.3. For gas turbines: point where the combustion mode switches to fully premixed steady state combustion mode, or
‘idle speed’.
2. Operational
parameters
2.1. Oxygen content of the flue gases.
2.2. Flue gas temperature.
2.3. Steam pressure.
2.4. For heat producing plants: enthalpy and heat transfer fluid rate.
2.5. For liquid and gas fired plants: fuel flow rate, specified as a percentage of the rated fuel flow capacity.
2.6. For steam boiler plants: temperature of steam at the exit of the boiler.

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Document Outline

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