Calculator › Las Vegas, Nevada
Solar panels in Las Vegas, Nevada
Las Vegas receives 5.53 peak sun hours a day and 2,018 kWh/m² of solar energy a year. That is measured satellite data for Las Vegas's coordinates, not a national average — and it changes the panel count.
Las Vegas solar data
5.53peak sun hours/day
2,018annual irradiance (kWh/m²)
1.83kWh/day from one 400 W panel
667kWh/year from one 400 W panel
Monthly solar irradiance in Las Vegas
| Month | Peak sun hours/day | Share of year |
|---|---|---|
| January | 2.79 | 0.2 |
| February | 3.39 | 0.3 |
| March | 5.01 | 0.4 |
| April | 7.04 | 0.6 |
| May | 8.00 | 0.7 |
| June | 8.29 | 0.7 |
| July | 7.66 | 0.6 |
| August | 7.01 | 0.6 |
| September | 6.04 | 0.5 |
| October | 4.68 | 0.4 |
| November | 3.46 | 0.3 |
| December | 2.75 | 0.2 |
Source: NASA POWER daily point API, parameter ALLSKY_SFC_SW_DWN (global horizontal irradiance), year 2024. Coordinates 36.1699, -115.1398.
How many solar panels does Las Vegas need?
For a typical US household using 900 kWh a month, Las Vegas needs about 17 panels of 400 W (6.57 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.