Solar panel output in Honolulu, HI
Honolulu, kWh per kW each monthU.S. median
Each kilowatt of panels in Honolulu makes about 1,586 kWh a year, 9.4% above the median U.S. city.
6 kW facing south at 20°: ≈ 9,510 kWh. Other sizes and layouts
- Winter holds up well: December to February makes 80% of June to August, the 6th steadiest ratio of the 100 cities.
- Output peaks in August, the best month in only eight of the 100 cities.
- July is where it ranks lowest nationally: 76th of 100 that month, against 28th over the year.
- Tilting the panels to 21° changes output by −0.1%, the smallest gain from latitude tilt.
- Among the ten most productive cities in January only.
- Its yearly output matches Oakland, CA, 3,868 km away, within 0.2%.
28th of 100 U.S. cities for yearly output · 5.69 kWh/m² of sun a day on the panel
At 21°: +1.0% in January, −1.0% in JunekWh per kW each month
Months, best first
Monthly output in Honolulu, HI, best to weakest month| Month | kWh per kW | Rank that month |
|---|
| August | 151.4 | 32 |
|---|
| September | 150.1 | 11 |
|---|
| June | 144.3 | 56 |
|---|
| July | 140.8 | 76 |
|---|
| May | 139.6 | 70 |
|---|
| April | 136.2 | 45 |
|---|
| March | 134.6 | 36 |
|---|
| October | 128.6 | 29 |
|---|
| January | 123.7 | 3 |
|---|
| February | 117.9 | 13 |
|---|
| November | 112.2 | 24 |
|---|
| December | 106.2 | 18 |
|---|
- San Francisco, CA3,849 km · 1,548
−2.4% - Oakland, CA3,868 km · 1,582
−0.2% - San Jose, CA3,887 km · 1,624
+2.4% - Stockton, CA3,952 km · 1,624
+2.5% - Sacramento, CA3,958 km · 1,614
+1.8%
Honolulu is far from the other listed cities: the nearest is 3,849 km away.