Heating systems in buildings - Energy performance of buildings - Overall energy use, primary energy and CO2 emissions

The purpose of this standard is to:
   collate results from other standards that specify calculation of energy consumption within a building;
   account for energy generated in the building, some of which may be exported for use elsewhere;
   present a summary on tabular form of the overall energy use of the building;
   specify calculation of primary energy consumption and carbon dioxide emission for the building as a whole;
   establish general principles for the calculation of primary energy factors and carbon dioxide emission factors.
This standard will provide:
a definition of system boundaries (e.g. building, installations, energy supply) and calculation periods;
general definition of the overall energy use (i.e. determine which services are taken into account within the system boundaries);
definition of energy terms (energy use, primary energy, etc.);
definition of the data interfaces with other standards in order to report the overall energy use of buildings;
general procedures for taking into consideration decentralised energy production based on renewable energy and CHP (combined heat and power production), e.g. to show how on-site energy generation offsets energy demand;
identification of the energy streams across system boundaries;
principles for assessing primary energy consumption and CO2 emission of buildings (i.e. principles for determining primary energy factors and carbon dioxide emission factors);
general principles for taking into account the interactions between the different energy uses (e.g. calculation of recovered losses and gains).
The objective of specifying the details of the energy performance calculation for a building is to:
- underline the particularity of a project (e.g. efforts made on bioclimatic design);
- show the strong and the weak points in the overall energy performance of the building and to highlight potential gains:
- distinguish between thermal uses and specific electrical uses;
- indicate the outputs required f

Heizsysteme in Gebäuden - Energieeffizienz von Gebäuden - Gesamtenergieverbrauch, Primärenergie und CO2-Emissionen

Der Zweck dieser Norm besteht in Folgendem:
Zusammenstellen und Ordnen der Ergebnisse weiterer Normen, in denen die Berechnung des Energieverbrauchs in einem Gebäude festgelegt wird;
Bestimmung der in einem Gebäude erzeugten Energie, die teilweise für den Verbrauch an anderer Stelle nach außen abgegeben werden kann;
Liefern einer tabellarischen Zusammenfassung des Gesamtenergieverbrauchs des Gebäudes;
Festlegung der Berechnung des Primärenergieverbrauchs und der Kohlendioxid Emissionen für das gesamte Gebäude;
Festlegung allgemeiner Grundsätze für die Berechnung der Primärenergiefaktoren und der Faktoren für die Kohlendioxid Emission;
Die vorliegende Norm bietet Folgendes:
-   eine Definition der Anlagengrenzen (z. B. Gebäude, Installationen, Energieversorgung) und der Berechnungszeiträume;
-   eine allgemeine Definition des Gesamtenergieverbrauchs (d. h. die Bestimmung der Leistungen, die innerhalb der Anlagengrenzen berücksichtigt werden);
-   eine Definition der energiebezogenen Begriffe (Energieverbrauch, Primärenergie usw.);
-   eine Definition der Datenschnittstellen mit weiteren Normen, um Angaben zum Gesamtenergieverbrauch von Gebäuden machen zu können;
-   allgemeine Verfahren zur Berücksichtigung einer auf erneuerbaren Energien und KWK (Kraft Wärme Kopplung) beruhenden dezentralen Energieerzeugung, z. B. um darzustellen, wie die Energieerzeugung vor Ort den Energiebedarf verändert;
-   Identifizierung von über die Anlagengrenzen hinaus verlaufenden Energieströmen;
-   Grundsätze für die Bewertung des Primärenergieverbrauchs und der CO2 Emissionen von Gebäuden, (d. h. Grundsätze für die Bestimmung von Primärenergiefaktoren und Faktoren für die Kohlendioxid Emissionen);
-   allgemeine Grundsätze für die Berücksichtigung der Wechselwirkungen zwischen den verschiedenen Energieverwendungszwecken (z. B. Berechnung der rückgewonnenen Verluste und Gewinne).

Systèmes de chauffage dans les bâtiments - Performance énergétique des bâtiments - Energie globale, énergie primaire et émissions de CO2

Ogrevalni sistemi v stavbah - Energijske lastnosti stavb - Splošna raba energije. osnovna energija in emisije CO2

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SLOVENSKI oSIST prEN 15315:2005

PREDSTANDARD
september 2005
Heating systems in buildings - Energy performance of buildings - Overall energy
use, primary energy and CO2 emissions
ICS 91.140.10 Referenčna številka
oSIST prEN 15315:2005(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD
DRAFT
prEN 15315
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2005
ICS
English version
Heating systems in buildings - Energy performance of buildings -
Overall energy use, primary energy and CO2 emissions
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 228.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
: This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
Warning
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15315:2005: E
worldwide for CEN national Members.

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prEN 15315:2005 (E)
Contents Page
Foreword.3
Introduction .4
1 Scope .5
2 Normative references .6
3 Definitions and symbols .7
4 Principle of the method.10
5 Calculation of the primary energy and CO emissions.18
2
Annex A (informative) Primary energy factors and CO emission factors .23
2
Annex B (informative) Overview of the different parameters influencing the integrated energy
performance of buildings.24

2

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prEN 15315:2005 (E)
Foreword
This document (prEN 15315:2005) has been prepared by Technical Committee CEN/TC 228 “Heating
systems in buildings”, the secretariat of which is held by DS.
This document is currently submitted to the CEN Enquiry.
The subjects covered by CEN/TC 228 are the following:
- design of heating systems (water based, electrical etc.);
- installation of heating systems;
- commissioning of heating systems;
- instructions for operation, maintenance and use of heating systems;
- methods for calculation of the design heat loss and heat loads;
- methods for calculation of the energy performance of heating systems.
Heating systems also include the effect of attached systems such as hot water production systems.
All these standards are systems standards, i.e. they are based on requirements addressed to the system as a
whole and not dealing with requirements to the products within the system.
Where possible, reference is made to other European or International Standards, a.o. product standards.
However, use of products complying with relevant product standards is no guarantee of compliance with the
system requirements.
The requirements are mainly expressed as functional requirements, i.e. requirements dealing wi
...

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