Construction site
The construction site’s consumption during the construction phase. Opened via Construction site in the project menu. A key-figure band at the top, a breakdown card below it, and at the bottom the cards for data entry: four A5 cards and an A4 section.
If the project’s calculation mode does not include A4 or A5, the page shows an amber box instead of a silent 0. A4 and A5 are judged separately: if the mode leaves out only one module, that one is named, and the lines in that module contribute 0.
The default values on this page (construction waste, soil and equipment transport) belong to BR18 (2025). In other calculation modes the checkboxes have no effect, and the actual lines are summed instead.
Key figures
Section titled “Key figures”The band at the top holds the construction process against its own legal requirement, §298, stk. 5:
| Figure | Meaning |
|---|---|
| Construction process vs BR requirement | The sum A4 + A5 per m²/year against the limit value, with status Met or Exceeded |
| Transport to the construction site · A4 | The whole building’s A4, so also the building products’ transport from the Transport page, not just materiel transport |
| Construction site · A5 | Electricity, heat, fuel, construction waste and soil |
| Basis | Reference area and study period, which all figures are calculated per m² per year from |
If a use is missing a reference area or a BBR category, the band says so instead of a figure: the limit value cannot be calculated without them.
Breakdown of contributions
Section titled “Breakdown of contributions”The card Breakdown of the construction site’s contributions shows a bar chart of the A5 sub-items and materiel transport (A4). The building products’ transport from the Transport page is not included here, only in the key figure’s A4 number.
- Per sub-item or Per module, and scale In the building, Per m² or Per m²/year.
- Each sub-item has a method badge: Default value (fixed rate from BR18 appendix 2, table 10) or Measured consumption (calculated from the entered lines).
- Show table and largest contributions expands a table (sub-item, method, kg CO₂-eq, per m²/year, share) together with a list of the largest single contributions.
The sub-items are Electricity, Heat, Other energy, Fuel, Construction waste (treatment), Haulage of construction waste, Haulage of soil, Materiel transport and Other.
Energy supply (A5)
Section titled “Energy supply (A5)”The construction site’s general electricity/heat supply during the construction phase.
| Field | Meaning |
|---|---|
| Comment | Free text for noting where the figure comes from |
| Supply source | Energy source from the library, e.g. electricity or district heating |
| Consumption | The total consumption over the entire construction period, with the calendar year it relates to (one row per year) |
The contribution is calculated as emission factor × consumption. Electricity used for transport (electric vehicles) belongs under the transport cards, not here. Transport electricity and supply electricity are kept separate.
Fuel (A5)
Section titled “Fuel (A5)”Fuel for the construction site’s own process machinery, e.g. an excavator or a crane. Entered as a total quantity in litres.
Waste treatment (A5)
Section titled “Waste treatment (A5)”One waste line per material, with quantity and optionally transport per line. The checkbox Use default values for haulage of construction waste is shared across all waste types:
- Switched on: the BR18 (2025) flat rate 0.06 × reference area × duration is added once for the whole construction site, and you do not specify transport per waste type.
- Switched off: you specify the transport per waste type yourself, preferably from measured consumption (litres of fuel or kWh of electricity), otherwise mass × distance (kg·km). Choose only one basis per haul.
Soil disposal (A5)
Section titled “Soil disposal (A5)”The same pattern as waste treatment, but with its own default value: when switched on, the transport’s GWP is calculated automatically as 0.06 × reference area × duration.
Materiel transport (A4)
Section titled “Materiel transport (A4)”Transport of equipment to and from the construction site. Note that this is module A4, not A5, even though it appears on the Construction site page. The default value here is 0.02 × reference area × duration.