Santa Maria, California, located in the Northern Sub Tropics, offers a favorable environment for solar energy production throughout the year. The city's geographical position at latitude 34.9535 and longitude -120.4348 provides ample sunlight for photovoltaic (PV) systems to generate electricity efficiently.
Solar energy production in Santa Maria varies across seasons, with summer being the most productive period. During summer months, each kilowatt of installed solar capacity can generate an impressive 7.09 kWh per day. Spring follows closely behind, with a daily output of 6.89 kWh per kilowatt. Autumn sees a moderate decrease in production, yielding 4.76 kWh per day, while winter experiences the lowest output at 3.55 kWh per day.
Optimal Solar Panel Installation
To maximize year-round solar energy production in Santa Maria, fixed solar panels should be installed at a tilt angle of 31 degrees facing south. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the Earth's elliptical orbit and the city's specific latitude.
Ideal Times for Solar Generation
The most ideal times for solar energy generation in Santa Maria are during the summer and spring seasons. These periods offer longer daylight hours and more direct sunlight, resulting in higher energy production. However, the city's climate allows for significant solar energy generation throughout the year, even during the less productive autumn and winter months.
Environmental and Weather Factors
Santa Maria's climate is generally conducive to solar energy production, with few significant impediments. However, there are some factors to consider:
- Coastal fog: Being near the Pacific coast, Santa Maria can experience morning fog, particularly during summer months. This may temporarily reduce solar output in the early hours of the day.
- Dust and particulate matter: The region's agricultural activities can contribute to airborne dust, which may accumulate on solar panels and slightly reduce their efficiency.
To mitigate these factors, regular cleaning and maintenance of solar panels is recommended. Additionally, installing panels at the optimal angle helps to maximize exposure to sunlight once morning fog dissipates. Overall, Santa Maria's climate and geographical location make it an excellent choice for solar energy production, with minimal environmental or weather-related challenges.
Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° 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 Santa Maria
Seasonal solar PV output for Latitude: 34.9535, Longitude: -120.4348 (Santa Maria, 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 Santa Maria, United States
To maximize your solar PV system's energy output in Santa Maria, United States (Lat/Long 34.9535, -120.4348) 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 Santa Maria, 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 Santa Maria, 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 |
|---|---|---|---|
| 18° South in Summer | 40° South in Autumn | 49° South in Winter | 28° 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 Santa Maria, 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 Santa Maria, 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 Santa Maria, United States
The topography around Santa Maria, California, is characterized by a diverse landscape that includes coastal plains, rolling hills, and nearby mountain ranges. The city itself sits in the Santa Maria Valley, a relatively flat area that extends eastward from the Pacific Ocean. This valley is bordered by gentle hills and low mountains to the north and south. To the west of Santa Maria, the land gradually slopes towards the coast, where it meets the Pacific Ocean. This coastal area features sandy beaches and dunes, with some low bluffs overlooking the water. As you move inland and to the east of the city, the terrain becomes more varied, with undulating hills and small valleys dotting the landscape.
Surrounding Mountain Ranges
The Santa Maria area is flanked by two notable mountain ranges. To the northeast, the San Rafael Mountains rise dramatically, with peaks reaching over 6,000 feet in elevation. To the southeast, the Solomon Hills form a lower but still significant topographic feature. These mountain ranges contribute to the area's varied landscape and create picturesque views from many parts of the city and surrounding areas.Potential for Solar PV Development
When considering areas near Santa Maria for large-scale solar photovoltaic (PV) installations, several factors come into play. The most suitable locations would be relatively flat, receive ample sunlight, and have minimal environmental or agricultural impact. The areas to the east and southeast of Santa Maria, where the Santa Maria Valley transitions into gently rolling hills, could be well-suited for solar PV development. These locations offer a good balance of flat or slightly sloping terrain and are generally less agriculturally productive than the valley floor. Additionally, some of the elevated areas in the nearby hills might provide excellent solar exposure, although careful consideration would need to be given to accessibility and grid connection. The coastal areas to the west, while flat, may be less ideal due to potential fog and coastal cloud cover that could reduce solar efficiency. It's important to note that any large-scale solar development would need to undergo thorough environmental and land-use assessments to ensure compatibility with local ecosystems and community needs. The ultimate suitability of specific sites would depend on a combination of factors including sunlight exposure, land availability, proximity to existing infrastructure, and local regulations.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 12th of March 2025
Last Updated: Monday 21st of July 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.
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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.




