Building energy performance tool







Projects
Show on results tab as well Actions Project name City Last saved Label Delta CO2
Project
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Location
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Building Type
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System selection 1
1 This can be still changed later
Input Modes
Geometry-related parameters
-
-
m
m²
m²
°
m²
m²
m²
m²
m²
m²
m²
m²
m²
m²
m²
m²
Wall
-
-
J/(m²*K)
-
W/(m²K)
-
W/K
Roof
-
-
J/(m²*K)
-
W/(m²K)
-
W/K
Slab (ground plate)
-
J/(m²*K)
W/(m²K)
-
W/K
Window
-
-
-
W/(m²K)
-
W/K
-
-
-
Air-Change Rate
-
1/h
-
1/h
-
-
-
-
-
-
-
-
-
%
-
kWh/(m²a)
-
-
m²
°
°
%
-
-
-
-
-
-
-
m²
m²
-
-
-
1/h
%
-
kWp
m²
Note: The PV module area is estimated at 5m2 per 1 KWp, based on standard assumptions; actual values may vary by panel efficiency.
°
°
%
-
-
-
%
-
-
%
-
-
%
Other operating parameters
W/m²
-
kWh/a
%
%
°C
°C
Yes/No
°C
°C
24h
24h
Manual Cost Input

Possibility to enter total cost for each system. This will overwrite the financial assumptions of the model. Tool still provides cost for each field that is left blank. Pls provide total cost, incl. System/materials, installation and taxes.

€
€
€
€
€
€
€
€
€
€
€
€
Heating: kWh/(m²a)
Cooling: kWh/(m²a)
Other: kWh/(m²a)
Total: kWh/(m²a)
Performance:
Energy & Environment
Print
kWh/(m²a)
Current Project1 Project2 Project3 Baseline Delta
Space heating
DHW
Space cooling
Lighting
Auxiliary energy
Ventilation
Other electricity
Total
Total incl. PV
Financial - Global

Currency:

Current Project1 Project2 Project3 Baseline Delta
Investment
Replacement
Residual
Energy
GHG
Inspection & maintenance
Cleaning
PV Feed in Tariff
Global cost (total)
Financial - CAPEX / OPEX
Operational cost – Delta:
Investment cost – Delta:
Payback Period: Years
Current Baseline Delta
Heating system
DHW system
Cooling system
Lighting
PV system
Ventilation system
Shading system
Envelope
Energy cost
Financial Detailed Cost
Type Efficiency Size Unit Cost
Heating system
DHW system
Solar DHW
Cooling system
Lighting
PV system
Ventilation system
Wall
Roof
Floor
Windows
Shading system
Total
Financial Legend

Global cost - A tool, suggested by the European Commission, to compare the economic effect of energy-related building measures over a given time period (20 years in this case).
Energy-related investment cost - The investment cost for insulation and systems.
Replacement - Additional investment cost if a system's lifetime is shorter than the considered time period.
Residual - If a system's lifetime has not ended with the considered time period, the residual value is considered as negative investment.
Energy - Cost for energy carrier over the time period.
I&M - Cost for inspection and maintenance of the systems.

version: 2.1.

Input parameters

General
Building type -
Country -
Region -
Construction case -
Building envelope
Areas
Net floor area m²
Facade m²
Roof m²
Floor m²
Windows m²
A/V -
Window fraction %
U-Values
Facade W/(m²*K)
Roof W/(m²*K)
Floor W/(m²*K)
Windows W/(m²*K)
Window G-value -
Thermal heat bridge (average) W/K
Shading type -
Building systems
Space heating (primary system) -
DHW system -
Solar thermal system (DHW) - type -
Solar thermal system (DHW) - collector area m²
Space cooling system -
Space heating theoretical efficiency %
Space heating annual COP (real efficiency) %
DHW system theoretical efficiency %
DHW annual COP (real efficiency) %
Space cooling efficiency -
Space cooling annual COP (real efficiency) %
Ventialtion system -
Heat recovery rate 1/h
Mechanical ventialtion rate 1/h
Free ventialtion & infiltration 1/h
Shading system -
PV - installed capacity kWp
Type of lighting -
Prices
Gas price (start year) €/kWh
Electricity price (start year) €/kWh
Oil price (start year) €/kWh
Kerosene price (start year) €/kWh
LPG price (start year) €/kWh
Gas price (end year) €/kWh
Electricity price (end year) €/kWh
Oil price (end year) €/kWh
Kerosene price (end year) €/kWh
LPG price (end year) €/kWh
Average real annual gas price increase %/a
Average real annual electricity price increase %/a
Interest rate (real) %/a
Calculation period a
Investment cost
Heating system €
DHW system €
DHW solar system €
Cooling system €
Ventilation €
Lighting €
Photovoltaics €
Facade €
Roof €
Floor €
Windows €
Shading €
Lifetimes
Heating system a
DHW system a
Cooling system a
Ventilaton system a
Photovoltaics a
Insulation (exterior wall) a
Insulation (roof) a
Insulation (ground) a
Window a
Climate parameters
Average temperature °C
Min. temperature °C
Max. temperature °C
Global radiation
North kWh/(m²*a)
East kWh/(m²*a)
South kWh/(m²*a)
West kWh/(m²*a)
Horizontal kWh/(m²*a)
Primary energy factor
Gas -
Electricity -
Oil -
Correction factor
Correction heating demand %
Correction cooling demand %

Results

Energy
Total useful specific demand kWh/(m²*a)
Space heating kWh/(m²*a)
DHW kWh/(m²*a)
Space cooling kWh/(m²*a)
Total final energy demand (incl. PV) kWh/(m²*a)
Total final energy demand (without PV) kWh/(m²*a)
Final energy per type
Total space heating (uncorrected) kWh/(m²*a)
Total space heating (incl. correction) kWh/(m²*a)
Total space heating (incl. conditioned area) kWh/(m²*a)
Space heating kWh/(m²*a)
DHW kWh/(m²*a)
Space cooling kWh/(m²*a)
Space cooling (incl. conditioned area + corr.) kWh/(m²*a)
Lighting kWh/(m²*a)
Auxiliary energy kWh/(m²*a)
Ventilation kWh/(m²*a)
Household electricity kWh/(m²*a)
Final energy per energy carrier
Electricity kWh/(m²*a)
Electricity (without PV) kWh/(m²*a)
Gas kWh/(m²*a)
LPG kWh/(m²*a)
Oil kWh/(m²*a)
Biomass kWh/(m²*a)
Kerosene kWh/(m²*a)
Total specific primary demand (incl. PV) kWh/(m²*a)
Total specific primary demand (without PV) kWh/(m²*a)
Space heating kWh/(m²*a)
DHW kWh/(m²*a)
Space cooling kWh/(m²*a)
Lighting kWh/(m²*a)
Auxiliary energy kWh/(m²*a)
Ventilation kWh/(m²*a)
Household electricity kWh/(m²*a)
Renewable energy production
Solar hot water kWh/(m²*a)
PV kWh/(m²*a)
Solar thermal coverage rate of total DHW demand %
Photovoltaics coverage rate of total electricity demand %
Solar thermal: Used / produced %
PV: Used / produced %
Global costs
Total global costs €
Specific total global costs €/m²
Thereof specific energy related Investment €/m²
Thereof specific replacement of systems and elements €/m²
Thereof specific residual value of investments €/m²
Thereof specific energy cost €/m²
Thereof specific I&M €/m²
Thereof specific PV earnings (feed in) €/m²
CO2 - emissions
Total CO2-emissions kg
Specific CO2-emissions (incl. PV) kg/m²
Specific CO2-emissions (without PV) kg/m²
Specific CO2-emissions from space heating kg/m²
Specific CO2-emissions from DHW generation kg/m²
Specific CO2-emissions from space cooling kg/m²
Specific CO2-emissions from lighting kg/m²
Specific CO2-emissions from auxiliary systems kg/m²
Specific CO2-emissions from ventilation kg/m²
Specific CO2-emissions from household electricity kg/m²
Banks
Click on a logo to see the criteria here
Building Performance Additional Criteria
Emission compared to the baseline A Sustainable water use
Emission Reduction -10% The building will be privately owned
Project is not funded by public
Building Characteristics
Emission compared to the baseline
Emission Reduction
Building Type
Construction Case
Additional Criteria
Tick the box of a criteria if your project fulfils it. They may have an influence on the eligibility of the project for improved financing. Further information on the specific criteria of each bank is available above: ‘Specific Criteria’.
Certificate