Metric · draft
A measurable indicator (students often call it a KPI) used as evidence for a design decision.
| Category | Energy |
| Unit | MWh/year |
| How it is calculated | Usable roof area × annual solar irradiation (kWh/m²) × module efficiency × performance ratio. Irradiation from solar radiation analysis (Ladybug, Cyclops) or PVGIS. |
| Origin | student |
| Status | draft |
Also known as: Rooftop photovoltaic generation potential · PV energy production · PV energy use split · Energy exported to residences
What it measures
Electricity the roofs could produce. Large flat warehouse roofs make this one of the strongest levers of logistics buildings.
Calculation
Usable roof area × annual solar irradiation (kWh/m²) × module efficiency × performance ratio. Irradiation from solar radiation analysis (Ladybug, Cyclops) or PVGIS.
Connections
- Used in case studies: Ilinca Maria Baciu, Katrin Rybinskiy, Marek Nový, Roshni Basu
- Tools that can calculate it: Cyclops, Dragonfly, Honeybee, Ladybug, URBANopt
- Informs decisions on: Operational energy and on-site renewables
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