# Commission Delegated Regulation (EU) No 244/2012 of 16 January 2012 supplementing Directive 2010/31/EU of the European Parliament and of the Council on the energy performance of buildings by establishing a comparative methodology framework for calculating cost-optimal levels of minimum energy performance requirements for buildings and building elements (Text with EEA relevance), Division 1.5

Extent: E+W+S+N.I.

Please indicate the underlying dataset for the national building stock
Table 1
Reference building for existing buildings (major refurbishment)
S/V (surface to volume), orientation, area of N/W/S/E facade.
Construction material, typical air tightness (qualitative), use pattern (if appropriate), age (if appropriate).
Technical building systems, U values of building elements, windows — area, U value, g value, shading, passive systems, etc.
For existing buildings
Building geometry
Shares of window area on the building envelope and windows with no solar access
Floor area m2 as used in building code
Description of the building
Description of the average building technology
Average energy performancekWh/m2, a(prior to investment)
Component level requirements(typical value)
(1) Single family buildings and subcategories
Subcategory 1
Subcategory 2 etc.
(2) Apartment blocks and multifamily buildings and subcategories
(3) Office buildings and subcategories
(4) Other non-residential building categories
Table 2
Reference building for new buildings
S/V, area of N/W/S/E facade. To note: the orientation of the building can already constitute an energy efficiency measure in itself in the case of new buildings.
For new buildings
Building geometry
Shares of window area on the building envelope and windows with no solar access
Floor area m2 as used in building code
Typical energy performancekWh/m2, a
Component level requirements
(1) Single family buildings and subcategories
Subcategory 1
Subcategory 2 etc.
(2) Apartment blocks and multifamily buildings and subcategories
(3) Office buildings and subcategories
(4) Other non-residential building categories
Table 3
Example of a basic reporting table for energy performance relevant data
Quantity
Unit
Description
Calculation
method and tool(s)
short description of the calculation method adopted (e.g. with reference to EN ISO 13790) and comment on the calculation tool(s) used
Primary energy conversion factors
values of delivered to primary energy conversion factors (per energy carrier) used for the calculation
Climate condition
location
name of the city with indication of latitude and longitude
heating degree-days
HDD
to be evaluated according to EN ISO 15927-6, specifying the period of calculation
cooling degree-days
CDD
source of climatic dataset
provide references on climatic dataset used for the calculation
terrain description
e.g. rural area, sub-urban, urban. Explain if the presence of nearby buildings has been considered or not
Building geometry
Length × Width × Height
m × m × m
related to the heated/conditioned air volume (EN 13790) and considering as ‘length’ the horizontal dimension of the façade south-oriented
number of floors
—
S/V (surface-to-volume) ratio
m2/m3
ratio of window area over total building envelope area
South
%
East
%
North
%
West
%
orientation
°
azimuth angle of the South façade (deviation from the South direction of the ‘South’ oriented façade)
Internal gains
building utilisation
according to the building categories proposed in Annex 1 to Directive 2010/31/EU
average thermal gain from occupants
W/m2
specific electric power of the lighting system
W/m2
total electric power of the complete lighting system of the conditioned rooms (all lamps + control equipment of the lighting system)
specific electric power of electric equipment
W/m2
Building elements
average U-value of walls
W/m2K
weighted U-value of all walls: U_wall = (U_wall_1 · A_wall_1 + U_wall_2 · A_wall_2 + … + U_wall_n · A_wall_n)/(A_wall_1 + A_wall_2 + … + A_wall_n); here are: U_wall_i = Uvalue of wall type i; A_wall_i = total surface of wall type i
average U-value of roof
W/m2K
similar to walls
average U-value of basement
W/m2K
similar to walls
average U-value of windows
W/m2K
similar as for walls; it should take into account the thermal bridge due to the frame and dividers (according to EN ISO 10077-1)
thermal bridges
total length
m
average linear thermal transmittance
W/mK
thermal capacity per unit area
external walls
J/m2K
to be evaluated according to EN ISO 13786
internal walls
J/m2K
slabs
J/m2K
type of shading systems
e.g. solar blind, roll-up shutter, curtain, etc.
average g-value of
glazing
—
total solar energy transmittance of glazing (for radiation perpendicular to the glazing), here: weighted value according to the area of different windows (to be evaluated according to EN 410)
glazing + shading
—
total solar energy transmittance for glazing and an external solar protection device has to be evaluated according to EN 13363-1/-2
Infiltration rate (air changes per hour)
1/h
e.g. calculated for a pressure difference inside/outside of 50 Pa
Building systems
ventilation system
air changes per hour
1/h
heat recovery efficiency
%
efficiencies of heating system
generation
%
to be evaluated according to EN 15316-1, EN 15316-2-1, EN 15316-4-1, EN 15316-4-2, EN 15232, EN 14825, EN 14511
distribution
%
emission
%
control
%
efficiencies of cooling system
generation
%
to be evaluated according to EN 14825, EN 15243, EN 14511, EN 15232
distribution
%
emission
%
control
%
efficiencies of DHW system
generation
%
to be evaluated according to EN 15316-3-2, EN 15316-3-3
distribution
%
Building Setpoints and Schedules
temperature setpoint
winter
°C
indoor operative temperature
summer
°C
humidity setpoint
winter
%
indoor relative humidity, if applicable: ‘Humidity has only a small effect on thermal sensation and perceived air quality in the rooms of sedentary occupancy’ (EN 15251)
summer
%
operation schedules and controls
occupancy
provide comments or references (EN or national standards, etc.) on the schedules used for the calculation
lighting
appliances
ventilation
heating system
cooling system
Energy building need/use
(thermal) energy contribution of main passive strategies implemented
(1)
…
kWh/a
e.g. solar greenhouse, natural ventilation, day-lighting, etc.
(2)
…
kWh/a
(3)
…
kWh/a
energy need for heating
kWh/a
heat to be delivered to or extracted from a conditioned space to maintain the intended temperature conditions during a given period of time
energy need for cooling
kWh/a
energy need for DHW
kWh/a
heat to be delivered to the needed amount of domestic hot water to raise its temperature from the cold network temperature to the prefixed delivery temperature at the delivery point
energy need for other (humidification, dehumidification)
kWh/a
latent heat in the water vapour to be delivered to or extracted from a conditioned space by a technical building system to maintain a specified minimum or maximum humidity within the space (if applicable)
energy use for ventilation
kWh/a
electrical energy input to the ventilation system for air transport and heat recovery (not including the energy input for preheating the air) and energy input to the humidification systems to satisfy the need for humidification
energy use for internal lighting
kWh/a
electrical energy input to the lighting system and other appliances/systems
energy use for other (appliances, external lighting, auxiliary systems, etc.)
kWh/a
Energy generation at the building site
thermal energy from RES (e.g. thermal solar collectors)
kWh/a
energy from renewable sources (that are not depleted by extraction, such as solar energy, wind, water power, renewed biomass) or co-generation
electrical energy generated in the building and used onsite
kWh/a
electrical energy generated in the building and exported to the market
kWh/a
Energy consumption
delivered energy
electricity
kWh/a
energy, expressed per energy carrier, supplied to the technical building systems through the system boundary, to satisfy the uses taken into account (heating, cooling, ventilation, domestic hot water, lighting, appliances, etc.)
fossil fuel
kWh/a
other (biomass, district heating/cooling, etc.)
kWh/a
primary energy
kWh/a
energy that has not been subjected to any conversion or transformation process

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Source: https://www.legislation.gov.uk/eur/2012/244/annex/III/division/1/division/1.5 (the official version)
Page: https://openlegislation.uk/eu-regulation-2012-244/annex-III/division-1/division-1.5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.