Wind Energy in Κωνστάντζα
Ετήσια απόδοση
9.136
kWh/year
Περίοδος αποπληρωμής
not reached
Εξοικονόμηση CO₂
2.4
t CO₂/year
Example: 10 kW system, country average values
Συχνές ερωτήσεις για Κωνστάντζα
How much electricity does a 10 kW wind turbine produce in Κωνστάντζα?
With a capacity factor of 10%, a 10 kW turbine in Κωνστάντζα generates approximately 9136 kWh per year.
How much does a small wind turbine cost in Κωνστάντζα?
A 10 kW wind turbine in Κωνστάντζα typically costs around €40,000 including installation.
What is the payback period for a wind turbine in Κωνστάντζα?
Given local wind conditions, the investment is not paid back within the 20-year horizon of this example calculation.
How much CO₂ does a wind turbine save in Κωνστάντζα per year?
A 10 kW wind turbine in Κωνστάντζα avoids approximately 2.4 tonnes of CO₂ per year.
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 € (4.000 €/kW) | IEA Wind TCP Task 27 / WindEurope: 3.000–6.000 €/kW installiert für Kleinwind, Mittelwert bei 10 kW |
| Operating cost | 1.200 €/a | — |
| Electricity price | 0,150 EUR/kWh | Eurostat nrg_pc_204, Band DC, 2025-S2 |
| Feed-in tariff | 0,0450 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 | 265 g/kWh | EEA, greenhouse gas emission intensity of electricity generation (seed), 2023 |
| Wind speed (data source) | 6,08 m/s | Annual mean at 50 m reference height |
| Wind speed (hub height) | 4,56 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 | 10,4 % net | Gross 12,4 %, 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.