SIST-TP CEN/TR 15459-2:2018

SLOVENSKI STANDARD
SIST-TP CEN/TR 15459-2:2018
01-maj-2018
Energijske lastnosti stavb - Postopek ekonomskega vrednotenja energijskih
sistemov v stavbah - 2. del: Razlaga in utemeljitev EN 15459-1 - Modul M1-14
Energy performance of buildings - Economic evaluation procedure for energy systems in
buildings - Part 2: Explanation and justification of EN 15459-1, Module M1-14
Heizungsanlagen und Wasserbasierte Kühlanlagen in Gebäuden - Energieeffizienz von
Gebäuden - Teil 2: Begleitender TR zur EN 15459-1 (Wirtschaftlichkeitsberechnungen
für Energieanlagen in Gebäuden)
Performance énergétique des bâtiments - Procédure d’évaluation économique des
systèmes énergétiques des bâtiments - Partie 2 : Explication et justification de l’EN
15459-1, Module M1-14
Ta slovenski standard je istoveten z: CEN/TR 15459-2:2017
ICS:
27.015 (QHUJLMVNDXþLQNRYLWRVW Energy efficiency. Energy
2KUDQMDQMHHQHUJLMHQD conservation in general
VSORãQR
91.120.10 Toplotna izolacija stavb Thermal insulation of
buildings
91.140.10 Sistemi centralnega Central heating systems
ogrevanja
SIST-TP CEN/TR 15459-2:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/TR 15459-2:2018

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SIST-TP CEN/TR 15459-2:2018


CEN/TR 15459-2
TECHNICAL REPORT

RAPPORT TECHNIQUE

March 2017
TECHNISCHER BERICHT
ICS 91.120.10; 91.140.10
English Version

Energy performance of buildings - Economic evaluation
procedure for energy systems in buildings - Part 2:
Explanation and justification of EN 15459-1, Module M1-
14
Performance énergétique des bâtiments - Procédure Heizungsanlagen und Wasserbasierte Kühlanlagen in
d'évaluation économique des systèmes énergétiques Gebäuden - Energieeffizienz von Gebäuden - Teil 2:
des bâtiments - Partie 2 : Explication et justification de Begleitender TR zur EN 15459-1
l'EN 15459-1, Module M1-14 (Wirtschaftlichkeitsberechnungen für Energieanlagen
in Gebäuden)


This Technical Report was approved by CEN on 6 March 2017. It has been drawn up by the Technical Committee CEN/TC 228.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15459-2:2017 E
worldwide for CEN national Members.

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Contents Page

European foreword . 3
Introduction . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols and abbreviations . 6
4.1 Symbols . 6
4.2 Subscripts . 6
5 Information on the method . 6
6 Method description . 7
6.1 Rationale . 7
6.2 Time steps . 8
6.3 Assumptions . 8
6.4 Data input . 9
7 Information on the accompanying spreadsheet . 16
8 Results of the validation tests . 16
Annex A (informative) Flowchart . 17
Annex B (informative) Building description . 19
Bibliography . 22


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European foreword
This document (CEN/TR 15459-2:2017) has been prepared by Technical Committee CEN/TC 228
“Heating and cooling systems in buildings”, the secretariat of which is held by DIN.
This document has been prepared under a mandate given to CEN by the European Commission and
the European Free Trade Association.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such
patent rights.
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Introduction
The set of EPB standards, technical reports and supporting tools
In order to facilitate the necessary overall consistency and coherence, in terminology, approach,
input/output relations and formats, for the whole set of EPB-standards, the following documents and
tools are available:
a) a document with basic principles to be followed in drafting EPB-standards: CEN/TS 16628:2014,
Energy Performance of Buildings Basic Principles for the set of EPB standards [1];
—
b) a document with detailed technical rules to be followed in drafting EPB-standards;
CEN/TS 16629:2014, Energy Performance of Buildings — Detailed Technical Rules for the set of
EPB-standards [2];
c) the detailed technical rules are the basis for the following tools:
1) a common template for each EPB-standard, including specific drafting instructions for the
relevant clauses;
2) a common template for each technical report that accompanies an EPB standard or a cluster
of EPB standards, including specific drafting instructions for the relevant clauses;
3) a common template for the spreadsheet that accompanies each EPB standard, to demonstrate
the correctness of the EPB calculation procedures.
Each EPB-standards follows the basic principles and the detailed technical rules and relates to the
overarching EPB-standard, EN ISO 52000-1:2017.
One of the main purposes of the revision of the EPB-standards is to enable that laws and regulations
directly refer to the EPB-standards and make compliance with them compulsory. This requires that
the set of EPB-standards consists of a systematic, clear, comprehensive and unambiguous set of energy
performance procedures. The number of options provided is kept as low as possible, taking into
account national and regional differences in climate, culture and building tradition, policy and legal
frameworks (subsidiarity principle). For each option, an informative default option is provided
(Annex B).
Rationale behind the EPB technical reports
There is a risk that the purpose and limitations of the EPB standards will be misunderstood, unless the
background and context to their contents – and the thinking behind them – is explained in some detail
to readers of the standards. Consequently, various types of informative contents are recorded and
made available for users to properly understand, apply and nationally or regionally implement the
EPB standards.
If this explanation would have been attempted in the standards themselves, the result is likely to be
confusing and cumbersome, especially if the standards are implemented or referenced in national or
regional building codes.
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Therefore each EPB standard is accompanied by an informative technical report, like this one, where
all informative content is collected, to ensure a clear separation between normative and informative
contents (see CEN/TS 16629 [2]):
— to avoid flooding and confusing the actual normative part with informative content,
— to reduce the page count of the actual standard, and
— to facilitate understanding of the set of EPB standards.
This was also one of the main recommendations from the European CENSE project [5] that laid the
foundation for the preparation of the set of EPB standards.
5

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1 Scope
This technical report refers to standard EN 15459-1, module M1-14.
It contains information to support the correct understanding, use and national adaptation of standard
EN 15459-1.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 15459-1, Energy performance of buildings — Economic evaluation procedure for energy systems in
buildings — Part 1: Calculation procedures, Module M1-14
EN 15603:2008, Energy performance of buildings - Overall energy use and definition of energy ratings
EN ISO 7345:1995, Thermal insulation - Physical quantities and definitions (ISO 7345:1987)
3 Terms and definitions
For the purposes of this European Standard, the terms and definitions given in EN ISO 7345:1995,
EN 15603:2008, EN 15459-1 apply.
4 Symbols and abbreviations
4.1 Symbols
For the purposes of this Technical Report, the symbols given in EN 15603:2008, in EN 15459-1 apply.
4.2 Subscripts
For the purposes of this Technical Report, subscripts given in EN 15603:2008, in EN 15459-1 apply.
5 Information on the method
The method presented in this TR is based on the calculation of costs occurring during the life cycle of
the building. The choice for the type and categories of the costs items are linked to their influence of
the energy performance of the building.
Restriction for the categories of costs items shall be made available when this economic analysis
applies to part of the building, restricted energy building systems or choice of different options.
The limitation of this economic analysis may be due to the collection of data (existing building).
Choices for initial based on comparison of building, or average data shall be clearly stated.
6

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Table 1 — Main stages of a building over its life cycle
Product stage Constructio Use stage End of life stage
n process
stage
B-1 Use - installed products
B-2 Maintenance
B-3 Repair
B-4 Replacement
B-5 Refurbishment
B-6 Operational Energy use
B 6.1 Operational energy - heating
B 6.2 Operational energy - cooling
B 6.3 Operational energy -
ventilation
B 6.4 Operational energy – hot
water
B 6.5 Operational energy - lighting
B 6.6 Operational energy –
automation and control
B 7 Operational water use
NOTE Table 1 corresponds to the elementary life cycle costs as described in ISO 15686-5 [5] and
environmental building performance (EN 15978 [5]).
6 Method description
6.1 Rationale
The input data are the values collected for the building.
For any data different aspects are considered:
— the list of cost items considered (see Table 2 for example);
— the quantification (e.g. energy use, number and type of boilers,…);
— the costs (energy, boilers, …) due for acquisition, maintenance, duration between replacements, and
cost evolution,…
Operating conditions are considered as constant during the duration of the calculation period.
7
A-1 Raw material supply
A-2 Transportation
A-3 Manufacturing
A- 4 Transportation to construction site
A- 5 On site construction processes
C-1 Deconstruction
C-2 Transportation
C-3 Recycling/reuse
C-4 Disposal

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Table 2 — Example of costs items to be defined
Applicable
Global cost items
(Y/N)
Land acquisition

(land acquisition, preparation, depollution,…)
Design

(preparation, selection of teams, design,…)
Site Works

(connections to networks, construction process
and products acquisition,…)
Verification, commissioning

(control, verification, certification, commissioning
handover,…)
Other cost or incomes

(taxes, insurances, subsides,…)
Energy, water
Maintenance, operation, repair and periodic

controls
Services to users

(cleaning, waste, janitors,…)
Refurbishment

(adaptation to user’s need, upgrading features)
Residual value

(expected value of building and components at the
end of the calculation period, value for sale)
6.2 Time steps
Time step is typically 1 year.
The method could be used for shorter time step (month) with adaptation of the input data (rate
evolution, lifetime,…).
6.3 Assumptions
Energy use, rates for prices evolution are constant over the calculation period.
NOTE Formulas could be adapted to propose variation of the evolution rates.
8
Operational costs Initial costs

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6.4 Data input
6.4.1 Economic data
The determination of the discount rate as well as other inflation rate shall be made on a national basis.
For long term perspective, the development may be based on the published trends provided by the
European Commission. For related symbols and units, see Table 3.) This information are available on
the following website: https://ec.europa.eu/energy/en/topics/energy-strategy/2030-energy-
strategy.
Table 3 — Economical data of global cost
Desc
...