Solar panel output in Charleston, WV
Each kilowatt of panels in Charleston makes about 1,219 kWh a year, 15.9% below the median U.S. city.
6 kW facing south at 20°: ≈ 7,320 kWh. Other sizes and layouts
- Makes the least per kW of the 34 listed cities in the South.
- Greensboro, only 297 km away, makes 18.4% more per kW.
- November is where it ranks highest nationally: 72nd of 100 that month, against 95th over the year.
- Flat panels lose 10.8% here, the 20th smallest flat-panel loss of the 100 cities.
- Among the ten least productive cities in February, March, April, May, July and September.
- The nearest listed city with more output is Columbus, OH (216 km); the nearest with less is Pittsburgh, PA (273 km).
95th of 100 U.S. cities for yearly output · 4.57 kWh/m² of sun a day on the panel
Which way should the panels face?
- 1-axis trackerGround mount1,402+15.0%
- South, tilted 38°1,236+1.4%
- South, 20° tilt1,219baseline
- Flat1,088−10.8%
- West-facing, 20°1,063−12.8%
- East-facing, 20°1,057−13.3%
Months, best first
Every month falls short of the median U.S. city's same month.
| Month | kWh per kW | Rank that month |
|---|---|---|
| June | 136.4 | 78 |
| July | 129.4 | 98 |
| August | 127.5 | 90 |
| May | 126.1 | 100 |
| April | 114.5 | 97 |
| September | 108.6 | 98 |
| March | 96.4 | 97 |
| October | 93.8 | 84 |
| November | 80.2 | 72 |
| February | 75.8 | 94 |
| January | 65.5 | 89 |
| December | 65.3 | 78 |
Nearby cities
Same yearly output
- Burlington, VT1,222
- Buffalo, NY1,202
- Pittsburgh, PA1,191
Most similar seasons
- Oakland, CA1,582
- Lexington, KY1,342
- Indianapolis, IN1,332