Wind Energy in Пярну
Годишна добивност
9103
kWh/year
Срок на изплащане
not reached
Спестявания на CO₂
5.4
t CO₂/year
Example: 10 kW system, country average values
Често задавани въпроси за Пярну
How much electricity does a 10 kW wind turbine produce in Пярну?
With a capacity factor of 10%, a 10 kW turbine in Пярну generates approximately 9103 kWh per year.
How much does a small wind turbine cost in Пярну?
A 10 kW wind turbine in Пярну typically costs around €40,000 including installation.
What is the payback period for a wind turbine in Пярну?
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 Пярну per year?
A 10 kW wind turbine in Пярну avoids approximately 5.4 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 € (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 | 0,180 EUR/kWh | Eurostat nrg_pc_204, Band DC, 2025-S2 |
| Feed-in tariff | 0,0530 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 | 590 g/kWh | EEA, greenhouse gas emission intensity of electricity generation (seed), 2023 |
| Wind speed (data source) | 6,07 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.