Peak Sun Hours in Lüliang, Shanxi, China
- Solar zone
- Zone 3 (good)
- Best month
- May (6.1)
- Worst month
- December (2.5)
- Climate
- Continental · 8.1°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 2.72 | 3.19 | 4.16 | 1.14 | -7.7 | 65 |
| Feb | 3.44 | 4.15 | 4.24 | 1.44 | -3.6 | 60 |
| Mar | 4.72 | 5.62 | 4.97 | 1.80 | 2.5 | 49 |
| Apr | 5.59 | 6.88 | 4.93 | 2.25 | 9.4 | 47 |
| May | 6.14 | 7.69 | 4.88 | 2.55 | 15.7 | 46 |
| Jun | 5.83 | 7.63 | 4.05 | 2.66 | 20.7 | 51 |
| Jul | 5.29 | 7.28 | 3.27 | 2.63 | 22.6 | 62 |
| Aug | 4.79 | 6.59 | 3.24 | 2.32 | 20.6 | 67 |
| Sep | 4.08 | 5.62 | 3.45 | 1.82 | 15.1 | 68 |
| Oct | 3.57 | 4.47 | 4.18 | 1.37 | 8.3 | 65 |
| Nov | 2.89 | 3.41 | 4.43 | 1.03 | 0.3 | 65 |
| Dec | 2.52 | 2.91 | 4.41 | 0.95 | -6.8 | 65 |
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 2.52 kWh/m²/day, 0.77 system efficiency.
About solar in Lüliang
Lüliang, China has a continental climate with cold winters and warmer summers. Its annual peak sun hours average 4.3 kWh/m²/day, a good solar resource by global standards.
The strongest month in Lüliang is May (spring) at 6.14 kWh/m²/day, and the weakest is December (winter) at 2.52 kWh/m²/day. When sizing a year-round off-grid system, it's standard practice to design against the December value rather than the annual average — otherwise the battery bank runs low during the darkest weeks.
Lüliang'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 Lüliang?
- Lüliang averages 4.3 peak sun hours per day annually, ranging from 2.52 in December to 6.14 in May.
- How many solar panels do I need in Lüliang?
- Panel count depends on your daily load. At Lüliang's annual average of 4.3 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 Lüliang?
- Sizing against Lüliang's worst month (December, 2.52 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 Lüliang's solar resource compare globally?
- Lüliang sits in solar zone 3 out of 5 (where 5 is strongest) at 4.3 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.
- Does snow block solar panels in Lüliang?
- Yes — snow cover can drop output to near zero. In Lüliang's winter months (around December), brush panels after significant snowfall or design with steep tilt (45°+) so snow slides off naturally.
- How much does winter hurt solar output in Lüliang?
- Lüliang's worst month is December at 2.52 kWh/m²/day versus 6.14 in May — a 84% seasonal swing. Off-grid continental systems usually combine oversized arrays with wood-stove or generator backup.
- Is solar worth it in a continental climate like Lüliang's?
- Yes, but the seasonal ratio matters. Lüliang's annual 4.3 kWh/m²/day is solid; grid-tied net metering works well (summer credits offset winter draw). Full off-grid needs generator or hydro backup.