Wind Turbine Payback in Jewell County, KS
Wind turbine payback in Jewell County
No. The turbine wears out before it pays for itself.
At 30 m, the height a home turbine tower usually reaches, the wind in Jewell County, KS averages 6.4 m/s (14.3 mph). A 10 kW turbine there would make about 22,669 kWh a year, worth $3,459 at KS's 15.26¢/kWh. Against an installed cost of about $100,000, that is a payback of 29 years, and the turbine is built to last about 20.
What to do in Jewell County
A home turbine is not worth buying for savings in Jewell County unless your spot is far windier than the county average, 7.8 m/s at the hub against 6.4 m/s here. Per kW, solar panels would make about 1,332 kWh a year here against the turbine's 2,267, so get a solar quote first.
What would have to change
- Power would have to cost 22¢/kWh, 1.4 times what KS pays now.
- Or the average wind at the hub would have to be 7.8 m/s instead of 6.4. A taller tower or an exposed ridge can add some of that; a rooftop never will.
Against the rest of KS
Jewell County is the 322nd windiest of 3,144 US counties at turbine height; the national middle is 4.79 m/s. The windiest in KS is Edwards County at 6.68 m/s, payback 27 years.
Month by month in Jewell County
April is the strongest month here, at 7.30 m/s and about 2,396 kWh. August is the weakest, 5.38 m/s and 1,289 kWh, so the best month makes 1.9 times the worst. November to March brings in 43% of the year's output in Jewell County.
| Month | Wind at 30 m | Output | Worth |
|---|---|---|---|
| January | 6.35 m/s | 1,896 kWh | $289 |
| February | 6.46 m/s | 1,773 kWh | $271 |
| March | 6.89 m/s | 2,229 kWh | $340 |
| April | 7.30 m/s | 2,396 kWh | $366 |
| May | 6.59 m/s | 2,041 kWh | $311 |
| June | 6.33 m/s | 1,819 kWh | $278 |
| July | 5.50 m/s | 1,360 kWh | $208 |
| August | 5.38 m/s | 1,289 kWh | $197 |
| September | 6.42 m/s | 1,878 kWh | $287 |
| October | 6.65 m/s | 2,080 kWh | $317 |
| November | 6.63 m/s | 2,002 kWh | $306 |
| December | 6.29 m/s | 1,857 kWh | $283 |
What a taller tower would buy
Measured at 10 m the wind in Jewell County averages 5.01 m/s; at 50 m it is 7.17 m/s. That gives a shear exponent of 0.223, typical of ordinary open country. Going from 20 m to 50 m takes output from 18,557 to 28,250 kWh a year, 52% 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 | 5.84 m/s | 18,557 kWh | 35 years |
| 30 m | 6.4 m/s | 22,654 kWh | 29 years |
| 40 m | 6.82 m/s | 25,761 kWh | 25 years |
| 50 m | 7.17 m/s | 28,250 kWh | 23 years |
Counties around Jewell County
None of the 6 closest counties is windier than Jewell County.
- Mitchell County, KS: 6.26 m/s, 21,632 kWh, payback 30 years (27 mi)
- Nuckolls County, NE: 6.4 m/s, 22,669 kWh, payback 34 years (29 mi)
- Smith County, KS: 6.38 m/s, 22,521 kWh, payback 29 years (30 mi)
- Republic County, KS: 6.38 m/s, 22,521 kWh, payback 29 years (31 mi)
- Webster County, NE: 6.38 m/s, 22,521 kWh, payback 34 years (31 mi)
- Cloud County, KS: 6.29 m/s, 21,855 kWh, payback 30 years (37 mi)
Sun versus wind in Jewell County
Jewell County 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 2,267. This is one of the rare places where a kilowatt of turbine out-produces a kilowatt of panels, by 1.7 times. 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.