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Solar panels in New York, New York
New York receives 4.01 peak sun hours a day and 1,463 kWh/m² of solar energy a year. That is measured satellite data for New York's coordinates, not a national average — and it changes the panel count.
New York solar data
4.01peak sun hours/day
1,463annual irradiance (kWh/m²)
1.32kWh/day from one 400 W panel
483kWh/year from one 400 W panel
Monthly solar irradiance in New York
| Month | Peak sun hours/day | Share of year |
|---|---|---|
| January | 1.55 | 0.1 |
| February | 2.94 | 0.2 |
| March | 3.84 | 0.3 |
| April | 4.59 | 0.4 |
| May | 5.19 | 0.4 |
| June | 6.65 | 0.6 |
| July | 5.88 | 0.5 |
| August | 5.08 | 0.4 |
| September | 4.17 | 0.3 |
| October | 3.88 | 0.3 |
| November | 2.45 | 0.2 |
| December | 1.74 | 0.1 |
Source: NASA POWER daily point API, parameter ALLSKY_SFC_SW_DWN (global horizontal irradiance), year 2024. Coordinates 40.7128, -74.006.
How many solar panels does New York need?
For a typical US household using 900 kWh a month, New York needs about 23 panels of 400 W (9.06 kWp), with a south-facing roof. That is more panels than the same household would need in a city with 4.5 peak sun hours.