Metric · draft
A measurable indicator (students often call it a KPI) used as evidence for a design decision.
| Category | Energy |
| Unit | kWh/year |
| How it is calculated | Sum of space-heating demand over a year; simulated, or estimated from heated volume × heat-loss coefficient × degree days. |
| Origin | student |
| Status | draft |
Also known as: Annual operational heating energy
What it measures
Energy needed to keep the building warm. In cold climates and large warehouse volumes it is often the biggest operational energy item.
Calculation
Sum of space-heating demand over a year; simulated, or estimated from heated volume × heat-loss coefficient × degree days.
Connections
- Used in case studies: Elsa Hauksdottir
- Tools that can calculate it: Honeybee, nPro, Pollination
- Informs decisions on: Operational energy and on-site renewables
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