Peak Sun Hours in Mbanza-Ngungu, Bas-Congo, Democratic Republic of the Congo
- Solar zone
- Zone 3 (good)
- Best month
- March (5.2)
- Worst month
- June (3.9)
- Climate
- Equatorial · 24.3°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 4.69 | 6.90 | 1.98 | 2.58 | 24.2 | 83 |
| Feb | 4.85 | 7.00 | 2.09 | 2.62 | 24.6 | 82 |
| Mar | 5.17 | 7.03 | 2.54 | 2.64 | 24.7 | 82 |
| Apr | 4.82 | 6.68 | 2.46 | 2.47 | 24.5 | 84 |
| May | 4.19 | 5.81 | 2.19 | 2.20 | 24.3 | 82 |
| Jun | 3.86 | 5.20 | 1.90 | 2.10 | 23.4 | 74 |
| Jul | 3.91 | 5.08 | 1.87 | 2.15 | 23.3 | 70 |
| Aug | 3.91 | 5.25 | 1.59 | 2.21 | 24.3 | 68 |
| Sep | 4.06 | 6.00 | 1.71 | 2.20 | 25.4 | 69 |
| Oct | 4.00 | 6.83 | 1.71 | 2.20 | 25.0 | 77 |
| Nov | 4.57 | 7.13 | 2.10 | 2.42 | 24.0 | 84 |
| Dec | 4.36 | 6.91 | 1.74 | 2.46 | 23.8 | 85 |
GHI, Clear-sky, DNI, DHI in kWh/m²/day. Data: NASA POWER climatology (long-term monthly averages).
Off-grid calculator
Add appliances
- Add an appliance to size a system.
Sizing
- Daily load
- 0.00 kWh
- Panel wattage
- 0 W
- Panel count (400W modules)
- 0
- Battery bank
- 0.0 kWh
Sizing against worst-month PSH of 3.86 kWh/m²/day, 0.77 system efficiency.
About solar in Mbanza-Ngungu
Mbanza-Ngungu, Democratic Republic of the Congo sits near the equator, where day length is stable year-round and the sun passes close to overhead. Its annual peak sun hours average 4.37 kWh/m²/day, a good solar resource by global standards.
The strongest month in Mbanza-Ngungu is March (autumn) at 5.17 kWh/m²/day, and the weakest is June (winter) at 3.86 kWh/m²/day. When sizing a year-round off-grid system, it's standard practice to design against the June value rather than the annual average — otherwise the battery bank runs low during the darkest weeks.
Mbanza-Ngungu's solar conditions are well within the range where off-grid PV is a straightforward engineering exercise with standard-sized arrays and lithium batteries.
FAQ
- What are the peak sun hours in Mbanza-Ngungu?
- Mbanza-Ngungu averages 4.37 peak sun hours per day annually, ranging from 3.86 in June to 5.17 in March.
- How many solar panels do I need in Mbanza-Ngungu?
- Panel count depends on your daily load. At Mbanza-Ngungu's annual average of 4.37 kWh/m²/day, a 5 kWh/day load needs roughly 4 × 400 W panels. Use the calculator above for your actual load.
- What size battery do I need in Mbanza-Ngungu?
- Sizing against Mbanza-Ngungu's worst month (June, 3.86 kWh/m²/day) with 2 days of autonomy at 80% depth of discharge, a 5 kWh/day load needs about a 12.5 kWh battery bank.
- How does Mbanza-Ngungu's solar resource compare globally?
- Mbanza-Ngungu sits in solar zone 3 out of 5 (where 5 is strongest) at 4.37 kWh/m²/day — good by global standards. For reference, top-tier desert sites average ~6.5 and high-latitude cities around 2.5 kWh/m²/day.
- Why doesn't solar output vary much by month in Mbanza-Ngungu?
- Near the equator, day length is nearly constant year-round and the sun stays close to overhead. In Mbanza-Ngungu, monthly PSH ranges just from 3.86 to 5.17 kWh/m²/day — variance is driven by wet-season cloud cover, not day length.
- What tilt angle works best for panels in Mbanza-Ngungu?
- At latitude 5°, panels in Mbanza-Ngungu work best at a low tilt (roughly 5°) or horizontal. Tracking mounts add little benefit this close to the equator.
- How does the wet season affect solar output in Mbanza-Ngungu?
- Equatorial wet seasons reduce output through cloud cover, not day length. Mbanza-Ngungu's worst month (June) still delivers 3.86 kWh/m²/day — design against this value for reliable year-round off-grid use.