Wind Turbine Payback in Red River Parish, LA
Wind turbine payback in Red River Parish
No. The turbine wears out before it pays for itself.
At 30 m, the height a home turbine tower usually reaches, the wind in Red River Parish, LA averages 3.21 m/s (7.2 mph). A 10 kW turbine there would make about 3,265 kWh a year, worth $433 at LA's 13.27¢/kWh. Against an installed cost of about $100,000, that is a payback of over 100 years, and the turbine is built to last about 20.
What to do in Red River Parish
A home turbine is not worth buying for savings in Red River Parish unless your spot is far windier than the county average, 8.6 m/s at the hub against 3.21 m/s here. Per kW, solar panels would make about 1,332 kWh a year here against the turbine's 327, so get a solar quote first.
What would have to change
- Power would have to cost 153¢/kWh, 11.5 times what LA pays now.
- Or the average wind at the hub would have to be 8.6 m/s instead of 3.21. A taller tower or an exposed ridge can add some of that; a rooftop never will.
Against the rest of LA
Red River Parish is the 2,874th windiest of 3,144 US counties at turbine height; the national middle is 4.79 m/s. The windiest in LA is Iberia Parish at 5.86 m/s, payback 40 years.
Month by month in Red River Parish
April is the strongest month here, at 3.72 m/s and about 431 kWh. July is the weakest, 2.59 m/s and 132 kWh, so the best month makes 3.3 times the worst. November to March brings in 51% of the year's output in Red River Parish.
| Month | Wind at 30 m | Output | Worth |
|---|---|---|---|
| January | 3.42 m/s | 340 kWh | $45 |
| February | 3.52 m/s | 338 kWh | $45 |
| March | 3.62 m/s | 410 kWh | $54 |
| April | 3.72 m/s | 431 kWh | $57 |
| May | 3.29 m/s | 301 kWh | $40 |
| June | 2.85 m/s | 179 kWh | $24 |
| July | 2.59 m/s | 132 kWh | $18 |
| August | 2.65 m/s | 143 kWh | $19 |
| September | 2.92 m/s | 195 kWh | $26 |
| October | 3.19 m/s | 271 kWh | $36 |
| November | 3.39 m/s | 322 kWh | $43 |
| December | 3.40 m/s | 335 kWh | $44 |
What a taller tower would buy
Measured at 10 m the wind in Red River Parish averages 1.94 m/s; at 50 m it is 4.06 m/s. That gives a shear exponent of 0.459, typical of rough, sheltered ground: trees or buildings slow the low wind a lot. Going from 20 m to 50 m takes output from 1,717 to 6,883 kWh a year, 301% more, before counting the extra cost of the taller tower. Why tower height decides it explains the shear behind these numbers.
| Hub height | Average wind | Output | Payback |
|---|---|---|---|
| 20 m | 2.67 m/s | 1,717 kWh | over 100 years |
| 30 m | 3.21 m/s | 3,270 kWh | over 100 years |
| 40 m | 3.66 m/s | 5,011 kWh | over 100 years |
| 50 m | 4.06 m/s | 6,883 kWh | over 100 years |
Counties around Red River Parish
3 of the 6 closest counties are windier at turbine height; the windiest, Natchitoches Parish, averages 3.32 m/s.
- De Soto Parish, LA: 3.3 m/s, 3,577 kWh, payback over 100 years (23 mi)
- Bienville Parish, LA: 3.16 m/s, 3,099 kWh, payback over 100 years (24 mi)
- Natchitoches Parish, LA: 3.32 m/s, 3,648 kWh, payback over 100 years (30 mi)
- Sabine Parish, LA: 3.27 m/s, 3,471 kWh, payback over 100 years (39 mi)
- Winn Parish, LA: 3.19 m/s, 3,198 kWh, payback over 100 years (43 mi)
- Webster Parish, LA: 3.16 m/s, 3,099 kWh, payback over 100 years (44 mi)
Sun versus wind in Red River Parish
Red River Parish gets 4.56 kWh of sunshine per square metre a day on average. One kW of solar panels here would make roughly 1,332 kWh a year; one kW of the turbine above makes 327. Kilowatt for kilowatt, panels make 4.1 times as much here as the turbine. Panel output assumes an 80% system performance ratio. Wind or solar runs the same comparison for every county.
How this is worked out
Wind is NASA's Power climate record, the 2001-2025 average at 10 m and 50 m for the county's centre, carried to 30 m with this county's own measured wind shear and spread into hours with a Rayleigh distribution. The turbine is a generic 10 kW, 7 m rotor machine with 10% losses. Cost is $10,000 per kW installed with no tax credit, because the federal one ended in 2025. One county-centre number cannot see your hilltop or your tree line, so treat it as the starting point for a site survey, not a substitute. The full method and its weak spots are in how the numbers are made.