Calculator › Charlotte, North Carolina
Solar panels in Charlotte, North Carolina
Charlotte receives 4.50 peak sun hours a day and 1,644 kWh/m² of solar energy a year. That is measured satellite data for Charlotte's coordinates, not a national average — and it changes the panel count.
Charlotte solar data
4.50peak sun hours/day
1,644annual irradiance (kWh/m²)
1.49kWh/day from one 400 W panel
542kWh/year from one 400 W panel
Monthly solar irradiance in Charlotte
| Month | Peak sun hours/day | Share of year |
|---|---|---|
| January | 2.71 | 0.2 |
| February | 3.44 | 0.3 |
| March | 4.36 | 0.4 |
| April | 5.45 | 0.5 |
| May | 5.74 | 0.5 |
| June | 6.59 | 0.5 |
| July | 5.94 | 0.5 |
| August | 5.91 | 0.5 |
| September | 4.21 | 0.4 |
| October | 4.45 | 0.4 |
| November | 2.74 | 0.2 |
| December | 2.32 | 0.2 |
Source: NASA POWER daily point API, parameter ALLSKY_SFC_SW_DWN (global horizontal irradiance), year 2024. Coordinates 35.2271, -80.8431.
How many solar panels does Charlotte need?
For a typical US household using 900 kWh a month, Charlotte needs about 21 panels of 400 W (8.07 kWp), with a south-facing roof. That is fewer panels than the same household would need in a city with 4.5 peak sun hours.