Energia Eolica a Gand
Rendimento annuo
6782
kWh/year
Periodo di ammortamento
not reached
Riduzione CO₂
1.0
t CO₂/year
Esempio: impianto da 10 kW, valori medi del paese
Domande frequenti su Gand
Quanta energia produce una turbina eolica da 10 kW a Gand?
Con un fattore di capacità del 8 %, una turbina da 10 kW a Gand produce circa 6782 kWh all'anno.
Quanto costa una piccola turbina eolica in Gand?
Una turbina da 10 kW in Gand costa circa 40,000 € installazione inclusa.
Qual è il periodo di ammortamento di una turbina eolica a Gand?
Given local wind conditions, the investment is not paid back within the 20-year horizon of this example calculation.
Quanta CO₂ risparmia una turbina eolica a Gand ogni anno?
Una turbina da 10 kW a Gand evita circa 1.0 t di CO₂ all'anno.
Assumptions and provenance
This example calculation is disclosed in full. Every quantity below enters the figures above exactly as stated — a specialist can recompute them or substitute their own assumptions.
- Payback (cumulative)
- not reached in 20 years
- Payback (discounted)
- not reached in 20 years
- Payback (static)
- —
Sum of the nominal annual net benefits, including degradation, price escalation and replacement costs — not discounted. This is the figure shown above.
The same cash flows, discounted at the nominal rate the net present value uses. Always the later of the two.
Investment divided by the first year's benefit — without price escalation, degradation or replacement costs. Many quotes use this; depending on the assumptions it comes out shorter or longer.
| Quantity | Value | Source / note |
|---|---|---|
| System size | 10 kW | Example system of this page |
| Investment | 40.000 € (4000 €/kW) | IEA Wind TCP Task 27 / WindEurope: 3.000–6.000 €/kW installiert für Kleinwind, Mittelwert bei 10 kW |
| Operating cost | 1200 €/a | — |
| Electricity price | 0,320 EUR/kWh | Eurostat nrg_pc_204, Band DC, 2025-S2 |
| Feed-in tariff | 0,0650 EUR/kWh | — |
| Self-consumption share | 20 % | Wind generates at night and in winter — the share is structurally below that of solar. |
| Degradation | 0,5 %/a | — |
| Price escalation | 2,0 %/a | — |
| Discount rate | 3,0 %/a | Nominal, matching the nominally escalating revenues |
| Horizon | 20 years | — |
| Grid CO₂ factor | 143 g/kWh | EEA, greenhouse gas emission intensity of electricity generation (seed), 2023 |
| Wind speed (data source) | 5,56 m/s | Annual mean at 50 m reference height |
| Wind speed (hub height) | 4,17 m/s | Logarithmic wind profile, converted to 15 m |
| Hub height | 15 m | — |
| Terrain | Suburban | z₀ = 0.4 m |
| Weibull shape parameter k | 2,00 | — |
| Air density | 1,247 kg/m³ | — |
| Capacity factor | 7,7 % net | Gross 9,2 %, less 16 % losses |
Data source: New European Wind Atlas (NEWA) · version Mesoscale Atlas v1 · as of 2019 (release), model years 2005–2018 · licence: CC BY 4.0
Non-binding initial assessment for an example system, not professional advice. Small wind requires an on-site wind measurement before any investment decision.