Peak Sun Hours in Kasur, Punjab, Pakistan
- Solar zone
- Zone 3 (good)
- Best month
- May (6.9)
- Worst month
- December (2.9)
- Climate
- Arid · 26.1°C
Monthly solar breakdown
| Month | GHI | Clear-sky | DNI | DHI | Temp °C | Humid % |
|---|---|---|---|---|---|---|
| Jan | 2.92 | 3.62 | 3.25 | 1.35 | 12.8 | 42 |
| Feb | 4.01 | 4.66 | 4.19 | 1.64 | 16.3 | 43 |
| Mar | 5.28 | 5.94 | 4.96 | 1.99 | 22.5 | 37 |
| Apr | 6.30 | 7.02 | 5.27 | 2.57 | 29.1 | 29 |
| May | 6.90 | 7.45 | 5.35 | 2.78 | 35.0 | 22 |
| Jun | 6.49 | 7.23 | 4.32 | 2.91 | 36.9 | 31 |
| Jul | 5.54 | 6.63 | 2.78 | 2.97 | 35.0 | 49 |
| Aug | 5.37 | 6.44 | 3.23 | 2.68 | 33.2 | 55 |
| Sep | 5.29 | 5.86 | 4.39 | 2.15 | 30.7 | 51 |
| Oct | 4.61 | 4.80 | 4.64 | 1.78 | 26.5 | 37 |
| Nov | 3.53 | 3.77 | 4.04 | 1.46 | 20.2 | 34 |
| Dec | 2.90 | 3.30 | 3.60 | 1.26 | 14.9 | 37 |
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 2.90 kWh/m²/day, 0.77 system efficiency.
About solar in Kasur
Kasur, Pakistan has a dry climate with long hours of direct sunshine and low humidity. Its annual peak sun hours average 4.93 kWh/m²/day, a good solar resource by global standards.
The strongest month in Kasur is May (spring) at 6.9 kWh/m²/day, and the weakest is December (winter) at 2.9 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.
Kasur'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 Kasur?
- Kasur averages 4.93 peak sun hours per day annually, ranging from 2.9 in December to 6.9 in May.
- How many solar panels do I need in Kasur?
- Panel count depends on your daily load. At Kasur's annual average of 4.93 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 Kasur?
- Sizing against Kasur's worst month (December, 2.9 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 Kasur's solar resource compare globally?
- Kasur sits in solar zone 3 out of 5 (where 5 is strongest) at 4.93 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.
- How often should I clean solar panels in Kasur?
- Arid climates can drop output 10–20% between cleanings. Quarterly cleaning is typical for Kasur; monthly during dust-storm seasons. Dew alone isn't enough when rainfall is infrequent.
- Does extreme heat hurt solar output in Kasur?
- Yes. Panel efficiency drops ~0.4% per °C above 25 °C cell temperature. In Kasur, midday cell temperatures of 55–70 °C can derate output 12–18% below nameplate.
- Is Kasur's solar resource as strong as the numbers suggest?
- Kasur's 4.93 kWh/m²/day is good globally. But heat derating and dust accumulation mean real-world yields typically land 10–15% below this headline figure — factor that into sizing.