Calculator › New Orleans, Louisiana
Solar panels in New Orleans, Louisiana
New Orleans receives 4.59 peak sun hours a day and 1,677 kWh/m² of solar energy a year. That is measured satellite data for New Orleans's coordinates, not a national average — and it changes the panel count.
New Orleans solar data
4.59peak sun hours/day
1,677annual irradiance (kWh/m²)
1.52kWh/day from one 400 W panel
553kWh/year from one 400 W panel
Monthly solar irradiance in New Orleans
| Month | Peak sun hours/day | Share of year |
|---|---|---|
| January | 2.88 | 0.2 |
| February | 3.72 | 0.3 |
| March | 4.32 | 0.4 |
| April | 5.70 | 0.5 |
| May | 5.45 | 0.5 |
| June | 5.98 | 0.5 |
| July | 5.38 | 0.4 |
| August | 5.58 | 0.5 |
| September | 4.63 | 0.4 |
| October | 4.89 | 0.4 |
| November | 3.38 | 0.3 |
| December | 3.07 | 0.3 |
Source: NASA POWER daily point API, parameter ALLSKY_SFC_SW_DWN (global horizontal irradiance), year 2024. Coordinates 29.9511, -90.0715.
How many solar panels does New Orleans need?
For a typical US household using 900 kWh a month, New Orleans needs about 20 panels of 400 W (7.92 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.