50 MW Wind-Solar-Storage Hybrid Plant Cost Breakdown (Q3 2026 China Supplier Pricing)
50 MW Wind-Solar-Storage Hybrid Plant Cost Breakdown (Q3 2026 China Supplier Pricing) — itemized bill of materials and FOB pricing for a typical configuration.
Estimated total (FOB): $14,577,056
Bill of materials
| Item | Specification | Qty | Price (USD) |
|---|---|---|---|
| Wind turbine generators (20 MW total) | onshore · turbine only $282/kW (FOB reference; tower & BOP quoted per project) | 1 | $5,640,000 |
| Wind farm box transformer (22000 kVA) | > 1600 kVA — outside catalogue, quoted per project | 1 | POA |
| Wind collector cable (集电电缆) (35 kV MV) | radial collector feeders + trenching · quoted per project | 1 | POA |
| Site access roads & crane pads (场内道路) (civil) | turbine access roads, hardstands & foundations · quoted per project | 1 | POA |
| Wind turbine erection & crane (吊装) (installation) | heavy-lift crane + erection crew · quoted per project | 1 | POA |
| PV modules (54545 × 550 Wp) | mono PERC · 30 MWp DC | 1 | $3,600,000 |
| String inverters (30 MW AC) | three-phase · grid-tied | 1 | $1,178,112 |
| PV mounting structure (30 MWp) | ground-mount | 1 | $1,950,000 |
| Battery energy storage (BESS) (20 MWh) | LFP · 90% DoD · 90% RTE | 1 | $1,900,000 |
| Power conversion system (PCS) (5000 kW) | 4 h duration · bidirectional | 1 | $293,944 |
| Battery management system (BMS) (cluster) | cell monitoring & balancing | 1 | $15,000 |
| Step-up power transformer (52.6 MVA) | MV/35 kV grid connection · outside distribution catalogue | 1 | POA |
Single-line diagram
How it was calculated
- Wind: 20 MW × CF 0.30 (at 7 m/s) × 8760 h = 52,560 MWh/yr
- PV: 30 MWp × 4.5 kWh/m²/day × 365 × PR 0.8 = 39,420 MWh/yr
- Combined P50 = 91,980 MWh/yr · P90 = 78,183 MWh/yr (0.85 × P50, illustrative)
- Storage: 20 MWh / 4 h = 5000 kW PCS · DoD 90% · RTE 90%
- Complementarity: strong (balanced wind + solar)
- Full-cost LCOE = (CAPEX × CRF + OPEX) ÷ energy = ($54,500,000 × 0.0858 + $1,000,000) ÷ 91,980 MWh = $61.7/MWh (illustrative)
What drives the cost
- Equipment — the transformer/switchgear/inverter is the largest single line item.
- Storage (where applicable) — batteries are the biggest swing factor.
- Copper & freight — copper-linked cabling and freight shift landed cost ±5–10%.
Frequently asked questions
How do I size a wind + solar + storage hybrid plant?
Size PV and wind to match the load or export profile, then add storage to firm the output. The calculator's default is 20 MW wind + 30 MW PV + 20 MWh/4 h storage. Capacity is matched against hourly resource and load; storage covers the gap between variable generation and demand. The configurator reports capacity, energy and LCOE.
What is complementarity between wind and solar?
Wind often peaks at night and in winter while solar peaks by day and in summer, so combining them smooths total output and reduces the storage needed to firm it. Good wind-solar complementarity can raise the capacity factor 10-20% over either alone. The configurator analyzes the combined P50/P90 energy profile.
What is the typical capacity factor of a hybrid plant?
Solar-alone capacity factors run 15-20%, onshore wind 25-35%, and a well-matched hybrid 25-40%. The higher and smoother the capacity factor, the better the LCOE and grid value. The configurator computes the combined capacity factor from the wind speed and irradiation inputs.
How does storage firm a renewable hybrid plant?
Storage charges during high-generation, low-price hours and discharges when wind and solar fall short, converting a variable output into a firmer, dispatchable profile. A 4-hour battery covers most daily gaps; 20 MWh/4 h is the calculator default. This raises the share of energy deliverable during peak-price windows.
What grid codes apply to wind-solar-storage hybrids?
Wind turbines follow IEC 61400 and GB/T 19960; PV follows GB/T 19964; storage follows GB/T 36547 and IEC 62933; and hybrid plants follow GB/T 19963 for grid connection. The configurator cites these standards and applies their voltage/frequency ride-through requirements to the design.
What LCOE can a wind-solar-storage hybrid achieve?
Utility hybrids in good resource areas achieve $0.03-0.06/kWh, with storage adding $0.01-0.03/kWh depending on the storage-to-generation ratio. The 20 MW wind + 30 MW PV + 20 MWh default typically lands near $0.04-0.05/kWh. The configurator computes full-cost LCOE with WACC, O&M and degradation.
Size your own configuration
Run the calculator for your exact load and get a full BOM + FOB price.
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