Los Banos, California is a very good location for year-round solar energy generation, though like most locations in the Northern Temperate Zone, it experiences significant seasonal variation in solar production.
Seasonal Solar Performance
The location shows excellent summer performance with solar panels producing 8.65 kWh per day per kW of installed capacity. Spring is also highly productive at 7.55 kWh per day per kW, making these the ideal seasons for solar generation at this site. Autumn production drops to 4.69 kWh per day per kW, while winter sees the lowest output at 2.94 kWh per day per kW. This seasonal pattern is typical for Northern California, with summer and spring offering nearly three times the solar production of winter months. The strong spring and summer performance makes Los Banos well-suited for solar installations, particularly for offsetting high air conditioning loads during hot Central Valley summers.Optimal Panel Configuration
For maximum year-round energy production, fixed solar panels at this location should be tilted at 31 degrees facing south. This angle is calculated to optimize total annual output by accounting for the sun's changing position throughout the year and weighting the angles based on actual solar irradiance data.Local Environmental Challenges
Los Banos faces several environmental factors that can significantly impact solar panel performance:- Agricultural dust and particulates: The Central Valley's extensive farming operations generate substantial dust, especially during harvest seasons and dry periods
- Tule fog: Dense ground fog is common during winter months, reducing solar irradiance when production is already at its lowest
- High summer temperatures: Extreme heat can reduce panel efficiency, despite abundant sunshine
- Wind-blown debris: Agricultural residue and dust storms can accumulate on panels
Preventative Measures for Better Performance
Several installation strategies can help maximize solar production despite these challenges:- Regular cleaning systems: Install automated cleaning systems or schedule frequent manual cleaning, especially during dusty agricultural seasons
- Proper panel spacing: Allow adequate airflow between and under panels to prevent overheating during extreme summer temperatures
- Quality mounting systems: Use robust mounting that can handle wind loads and potential debris impact
- Panel selection: Choose panels with better high-temperature performance coefficients to maintain efficiency during hot Central Valley summers
- Monitoring systems: Install production monitoring to quickly identify when cleaning or maintenance is needed due to dust accumulation
Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 4253 locations across the United States. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in the United States by location
Solar output per kW of installed solar PV by season in Los Banos
Seasonal solar PV output for Latitude: 37.0617, Longitude: -120.8632 (Los Banos, United States), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
 
Ideally tilt fixed solar panels 31° South in Los Banos, United States
To maximize your solar PV system's energy output in Los Banos, United States (Lat/Long 37.0617, -120.8632) throughout the year, you should tilt your panels at an angle of 31° South for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Los Banos, United States
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Los Banos, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 31° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 21° South in Summer | 41° South in Autumn | 51° South in Winter | 29° South in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Los Banos, United States
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Los Banos, United States.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Los Banos, United States
Topographical Features of Los Banos
Los Banos sits in the heart of California's Central Valley, positioned on relatively flat agricultural land that stretches across much of the region. The city is located at an elevation of approximately 125 feet above sea level, making it part of the broad, fertile valley floor that characterizes this area of California. To the west, the landscape begins to rise gradually as it approaches the foothills of the Coast Range mountains, while to the east, the terrain remains predominantly flat as it extends toward the San Joaquin River and beyond. The immediate vicinity around Los Banos consists primarily of irrigated farmland, with large rectangular fields divided by irrigation canals and rural roads. This agricultural landscape creates a patchwork of cultivated areas growing various crops including almonds, tomatoes, and other Central Valley staples. The terrain is generally very level with minimal natural elevation changes, making it ideal for large-scale agricultural operations that have dominated the region for decades.Regional Landscape Characteristics
Moving outward from Los Banos, the topography varies depending on direction. To the northwest, the land gradually transitions into the rolling hills and eventual steep slopes of the Diablo Range. These hills become increasingly pronounced as they approach the Pacheco Pass area, where State Route 152 cuts through the mountains toward the coast. The southern and eastern areas maintain the flat valley characteristics, with vast expanses of agricultural land extending toward Fresno County and beyond. The western edge of the region features more varied topography, with gentle slopes giving way to steeper hillsides covered in grassland and oak woodland. These areas are typically used for cattle grazing rather than row crop agriculture due to the increased slope and less reliable water access. The drainage patterns in the region are relatively simple, with most water flowing eastward toward the San Joaquin River through a network of agricultural drainage ditches and natural waterways.Optimal Areas for Large-Scale Solar Development
The flat agricultural lands surrounding Los Banos present excellent opportunities for utility-scale solar photovoltaic installations. The most suitable areas would be the expansive flat fields to the south and east of the city, where minimal grading would be required and large contiguous parcels could accommodate substantial solar arrays. These areas benefit from unobstructed southern exposure and lack the rolling terrain that could create shading issues between solar panel rows. The gentle slopes on the western edges of the valley floor could also prove suitable for solar development, particularly areas with southern or southwestern aspects. These locations would require slightly more site preparation than the completely flat valley floor, but the natural drainage and elevation could actually benefit solar installations by reducing potential flooding concerns while maintaining good sun exposure throughout the day. Areas to avoid for large-scale solar would include the steeper hillsides of the Coast Range foothills, where the irregular terrain would make installation challenging and expensive. Additionally, the riparian areas near waterways and the prime agricultural soils closest to existing irrigation infrastructure would likely face greater regulatory scrutiny and community opposition for conversion to solar use. The most promising locations would be marginally productive agricultural lands or areas where soil salinity or drainage issues have reduced farming viability, making solar development a more attractive alternative land use.United States solar PV Stats as a country
United States ranks 2nd in the world for cumulative solar PV capacity, with 95,209 total MW's of solar PV installed. This means that 3.40% of United States's total energy as a country comes from solar PV (that's 26th in the world). Each year United States is generating 289 Watts from solar PV per capita (United States ranks 15th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in United States?
Yes, there are several incentives for businesses wanting to install solar energy in the United States. These include federal tax credits, state and local rebates, net metering policies, and renewable energy certificates (RECs). Additionally, many states have enacted legislation that requires utilities to purchase a certain amount of electricity from renewable sources such as solar.
Do you have more up to date information than this on incentives towards solar PV projects in United States? Please reach out to us and help us keep this information current. Thanks!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 30th of July 2025
Last Updated: Friday 8th of August 2025
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Compare this location to others worldwide for solar PV potential
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However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




