✅ Concrete Volume per Turbine Base: ~400–500 m³
- Confirmed by multiple sources, including manufacturers and wind farm case studies.
- Large onshore turbines (especially 3–5 MW+ units) often use:
- 400–500 m³ of concrete
- Base diameters up to 20–25 m
- Depths of 2.5–4 m
- 📚 Example Sources:
- GE Renewable Energy installation documents
- European Wind Energy Association reports
- NREL (U.S. National Renewable Energy Laboratory)
✅ Typical Rebar Requirement: 90–120 kg per m³
For industrial-grade reinforced foundations, especially in energy and infrastructure, the common range is:
90–120 kg of steel reinforcement (rebar) per cubic meter of concrete
Varies slightly by soil condition, seismic zone, and structural design.
📚 Industry Engineering Guidelines:
ACI (American Concrete Institute) and Eurocode recommend:
~100 kg/m³ as a median for heavily reinforced bases
⚡ Calculation:
Let’s assume a typical reinforcement density of 100 kg of rebar per m³ (a middle value) for a turbine base.
Thus:
500 m3×100 kg/m3=50,000 kg of rebar
500m3×100kg/m3=50,000kg of rebar
or:
50,000 kg=50 metric tonnes of rebar per turbine
50,000kg=50metric tonnes of rebar per turbine
🔥 Summary Answer:
| Item | Approximate Amount per Turbine |
|---|
| Concrete | ~500 cubic meters |
| Rebar (Steel Reinforcement) | ~50 metric tonnes (50,000 kg) |
🛑 Environmental Implication:
That’s more than the weight of 35 average passenger cars in buried steel, per turbine.
This steel-reinforced foundation remains underground permanently after turbine decommissioning — it’s typically too costly and destructive to remove.
Over dozens of turbines, this totals thousands of tonnes of buried industrial material, making the land unsuitable for farming or full ecological restoration.