Nebraska Solar Production & Irradiance Data
4.4 peak sun hours/day · 7,920 kWh/year from a 6kW system · near national average
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Nebraska receives an average of 4.4 peak sun hours per day, which translates to a Global Horizontal Irradiance (GHI) of 4.4 kWh/m²/day. When solar panels are tilted at the optimal angle for Nebraska's latitude, irradiance increases to 5.21 kWh/m²/day — a 18% boost over flat-mounted panels.
This puts Nebraska near the national average of 4.29 peak sun hours per day. Nebraska's solar resource is comparable to the national average, making solar a solid investment — especially with current incentive programs. These figures are derived from NREL solar resource maps and PVWatts reference calculations.
Expected Annual Output by System Size
| System Size | Annual Output | Avg Monthly | Annual Savings | 25-Year Savings |
|---|---|---|---|---|
| 4 kW (12-16 panels) | 5,280 kWh | 440 kWh | $652/yr | $16,300 |
| 6 kW (18-24 panels) | 7,920 kWh | 660 kWh | $977/yr | $24,425 |
| 8 kW (24-32 panels) | 10,560 kWh | 880 kWh | $1,303/yr | $32,575 |
| 10 kW (30-40 panels) | 13,200 kWh | 1,100 kWh | $1,629/yr | $40,725 |
Based on 5.21 kWh/m²/day tilt irradiance, 14% system losses, and 12.34¢/kWh electricity rate. Actual output varies by installation specifics.
Month-by-Month Solar Production in Nebraska
Estimated monthly output for a 6kW system:
Solar production in Nebraska peaks in June when a 6kW system generates approximately 911 kWh — about 11.5% of annual production in a single month. The lowest production month is December at approximately 317 kWh (4% of annual output). This 2.9:1 seasonal ratio is relatively moderate, meaning your solar production stays fairly consistent throughout the year.
How Nebraska Compares Nationally
Tips for Maximizing Solar Production in Nebraska
Nebraska's 4.4 peak sun hours per day provides solid solar production. Proper panel orientation is important — aim for south-facing at Nebraska's latitude tilt angle for optimal year-round performance.
Consider adding battery storage to your Nebraska solar system. A 10-13 kWh home battery lets you store excess daytime production for evening use, maximizing your self-consumption and reducing grid dependence. This is especially valuable for backup power during outages.
Solar Irradiance Technical Data
Global Horizontal Irradiance (GHI): 4.4 kWh/m²/day. GHI measures the total solar radiation received on a horizontal surface, including direct sunlight and diffuse radiation from clouds and atmospheric scattering. This is the baseline measurement for solar resource assessment.
Tilt Irradiance: 5.21 kWh/m²/day. When panels are tilted at the optimal angle for Nebraska's latitude, they receive 18% more solar radiation than flat-mounted panels. This tilt optimization is one of the easiest ways to boost your system's output.
System Output Estimation: The annual production figures use the NREL PVWatts methodology: Tilt Irradiance × 365 days × System Size × (1 − System Losses) × Inverter Efficiency. We use 14% system losses (wiring, soiling, degradation, mismatch) and 96% inverter efficiency, matching PVWatts defaults.
Nebraska Solar Production FAQ
How many peak sun hours does Nebraska get?▼
Nebraska averages 4.4 peak sun hours per day, which is near the national average of 4.29 hours. Peak sun hours represent hours of full-intensity sunlight equivalent — a key factor in estimating solar panel output. This data is derived from NREL solar resource maps and PVWatts reference calculations.
How much electricity will a 6kW solar system produce in Nebraska?▼
A 6kW solar system in Nebraska produces approximately 7,920 kWh per year, or about 660 kWh per month on average. Production peaks in June (approximately 911 kWh) and is lowest in December (approximately 317 kWh). At Nebraska's average rate of 12.34¢/kWh, this saves you about $977/year.
What is the best month for solar production in Nebraska?▼
June is typically the best month for solar production in Nebraska, with a 6kW system producing approximately 911 kWh. The long daylight hours and high sun angle combine for maximum energy generation. The worst month is December, producing about 317 kWh — roughly 35% of the best month's output.
How does Nebraska's solar potential compare to other states?▼
Nebraska's average of 4.4 peak sun hours per day puts it near the national average of 4.29 hours. A 6kW system in Nebraska produces 7,920 kWh/year, compared to the national average of 7,562 kWh/year — that's +358 kWh/year (+5%). Even at Nebraska's 12.34¢/kWh rate, solar delivers solid returns.
What affects solar panel output in Nebraska?▼
Key factors affecting solar output in Nebraska include: roof orientation (south-facing is ideal), tilt angle (latitude tilt of 38° is optimal), shading from trees or buildings, panel efficiency rating, and local weather patterns. Nebraska's GHI (Global Horizontal Irradiance) is 4.4 kWh/m²/day, but panels tilted at the optimal angle receive 5.21 kWh/m²/day — a 18% improvement over flat-mounted panels.
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Nebraska Solar Data
- ☀️ Peak Sun Hours: 4.4 hrs/day
- 📊 GHI: 4.4 kWh/m²/day
- 📐 Tilt Irradiance: 5.21 kWh/m²/day
- ⚡ 6kW Output: 7,920 kWh/yr
- 📈 Best Month: June
- 📉 Worst Month: December
- 💡 Electricity Rate: 12.34¢/kWh
- 💰 Annual Savings (6kW): $977
- 📋 Data: NREL Reference Data