EPBD standards

The use of European standards for calculating energy performance (and for energy performance certification, and the inspection of heating and boilers, ventilation and air-conditioning systems) will increase the accessibility, transparency, comparability and objectivity of energy performance certification across the Member States and reduce costs compared to developing separate standards at national level. At the same time, to facilitate implementation of the EPBD and the setting of energy performance requirements by the Member States, the standards should be flexible enough to allow for necessary national and regional differentiation. This combination is a challenge that called for a follow-up of the first set of CEN standards to support the EPBD.

The first mandate to CEN (M343) resulted in the succesful publication of all EPBD related CEN standards 2007-2008. (list of CEN standards to support the EPBD)

To facilitate the interested reader information papers have been compiled in the CENSE action into 5 booklets introducing the CEN standards:

Booklet 1: Overall Energy Performance
Booklet 2: Building Energy Performance
Booklet 3: Heating and DHW Systems
Booklet 4: Ventilation and Cooling
Booklet 5: System Inspections

In order to specify a general framework for the assessment of overall energy use of a building, and the calculation of energy ratings in terms of primary energy, CO2-emissions or parameters defined by national energy policy, CEN/TC 371 (i.e. CEN/BT/TF 173) developed the so-called overarching standard EN 15603 Energy performance of buildings – Overall energy use and definition of energy ratings. CEN/TC 371 also released CEN/TR 15615 Explanation of the general relationship between various European standards and the Energy Performance of Buildings Directive (EPBD) - Umbrella Document. This umbrella document CEN/TC 371 gives an overview of all relevant EPBD standards

Some of the EPBD standards where developed under the Vienna Agreement with ISO lead either under ISO/TC 163 Thermal performance and energy use in the built environment, or ISO/TC 205 Building environment design.

The work to prepare a second generation of CEN standards (revision of the first set of standards, several new standards, and possibly merging or split up of some of the existing standards), in support of the recast EPBD, started in 2012 with a new mandate from the European Commission to CEN (M/480) and it is expected to be ready by 2016. The background and objectives of the revision work are mainly based on the findings of the CENSE action, and can be found on http://www.iee-cense.eu/

Most relevant CEN Technical Committees to HVAC

1. CEN/TC 156 Ventilation for buildings (including air conditioning)

General
Structure
Work programme
Published standards

Brief introduction

CEN/TC 156 Ventilation for buildings (including air conditioning), established 1989 to prepare standards for products and systems for ventilation and air conditioning of buildings subject to human occupancy. Currently 10 active Working Groups with various topics including terminology, residential ventilation, air handling units, ductwork, air terminals, fire precaution, ventilation for hospitals etc. Certain products are dealt with in other Committees, like CEN/TC 195 for air filtration. Standards for fans are prepared under ISO/TC 117, but adopted as European Standards (EN ISO) by CEN/TC 156.

CEN/TC 156 has prepared some 50 standards. Seven of these have been prepared under the first Mandate for EPBD, including:

  • EN 15251 Indoor Environmental input parameters for design and assessment of energy performance of buildings (to be revised under CEN/TC 371)
  • EN 13779 Performance requirements for ventilation and room conditioning systems

2. CEN/TC 228 Heating systems and water based cooling systems for buildings (including domestic hot water systems)

General
Structure
Work programme
Published standards

Brief introduction

CEN/TC 228 Heating systems and water based cooling systems for buildings (including domestic hot water systems), established 1992, has prepared about 25 European Standards, of which 19 under the first Mandate for EPBD, including:

  • EN 15459 Economic evaluation procedures for energy systems in buildings (This standard can be used to support the methodology for cost optimal minimum energy performance requirements, to be developed to support the recast EPBD)
  • EN 15316 Heating systems in buildings – Method for calculation of system energy requirements and system efficiencies (consists of 13 different parts)

     

CEN/TC 228 deals with heating systems only – standards for products are prepared in other committees, for example CEN/TC 57 (boilers) and CEN/TC 130 (radiators)

3. CEN/TC 371 Project Committee on Energy Performance of Buildings

General
Structure
Work programme
Published standards

Brief introduction

CEN/TC 371 Project committee on Energy Performance of Buildings

  • CEN/TR 15615 ”Umbrella document”
  • EN 15603 Overall energy use and definition of energy ratings

Other committees relevant to EPBD

  • CEN/TC 247 Building automation, control and building management. This Committee has prepared one standard for the EPBD – EN 15232 Impact of building automation, controls and building management
  • CEN/TC 89 Thermal performance of buildings and building components – has prepared 14 standards under the first Mandate for EPBD. Some of these are prepared jointly with ISO/TC 163, including
  • EN ISO 13790 Calculation of energy use for space heating and cooling
  • CEN/TC 169 Light and lighting. This Committee has prepared one standard for the EPBD – EN 15193 Energy requirements for lighting
  • ISO/TC 163 Thermal performance and energy use in the built environment
  • ISO/TC 205 Building environment design.

Other important committees (product level) – non exhaustive list

  • CEN/TC 92 Water meters
  • CEN/TC 110 Heat exchangers
  • CEN/TC 113 Heat pumps and air conditioning units
  • ISO/TC 117 Fans

Other important committees (related issues) – non exhaustive list

  • CEN/TC 127 Fire safety in buildings
  • CEN/TC 164 Water supply
  • CEN/TC 165 Waste water engineering
  • CEN/TC 350 Sustainability
  • CEN/TC 351 Regulated substances