Solar PV Analysis of San Luis Obispo, United States
San Luis Obispo, California, is a decent spot for generating solar energy throughout the year. The amount of electricity you can get from a solar panel depends on the season. In summer and spring, you can expect to generate quite a lot of power - about 8.51 kilowatt-hours per day in summer and 7.54 kilowatt-hours per day in spring for each kilowatt of installed solar capacity.
In autumn and winter, however, the output drops significantly to around 5.21 and 3.55 kilowatt-hours per day respectively due to shorter daylight hours and less intense sunlight.
To maximize your yearly energy production from these panels at this location, it's best to tilt them at an angle of about 30 degrees towards the south. This is because San Luis Obispo is located in the Northern Hemisphere where sunlight comes mostly from the south.
As far as environmental or weather factors that might affect solar production here? Well, San Luis Obispo enjoys over 300 days of sunshine each year so there's plenty of light for solar generation most days! However, it does have foggy mornings especially during May-June period which could reduce early morning production slightly but clears up by noon most times allowing good afternoon sun exposure.
Also keep in mind that dust or debris on your panels can also lower their efficiency so regular cleaning would be necessary especially after windy conditions where dust may accumulate on panels surface.
So overall while not ideal all year round due its seasonal variations with lowered output during fall/winter months; San Luis Obispo still offers favorable conditions for significant power generation via Solar PV systems particularly if you install them with optimal tilt angle and maintain them properly through regular cleaning.
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 San Luis Obispo
Seasonal solar PV output for Latitude: 35.2612, Longitude: -120.655 (San Luis Obispo, 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 30° South in San Luis Obispo, United States
To maximize your solar PV system's energy output in San Luis Obispo, United States (Lat/Long 35.2612, -120.655) throughout the year, you should tilt your panels at an angle of 30° 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 San Luis Obispo, 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 San Luis Obispo, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 30° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 19° South in Summer | 40° South in Autumn | 50° 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 San Luis Obispo, 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 San Luis Obispo, 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 San Luis Obispo, United States
San Luis Obispo is situated in the Central Coast of California. The topography around this area is diverse, featuring a mix of rolling hills, valleys, and flat areas. It's surrounded by the Santa Lucia Mountains to the east and Pacific Ocean to the west. The city itself lies in a valley which was formed by San Luis Creek.
The region has a Mediterranean climate with over 300 days of sunshine per year which makes it suitable for large-scale solar PV installations. However, specific locations would depend on various factors such as land availability, accessibility, proximity to transmission lines etc.
Areas with relatively flat terrain would be ideal for large-scale solar PV projects due to ease of installation and maintenance. This could include parts of the Cuyama Valley towards the southeast or Salinas Valley towards north.
Moreover, considering environmental concerns and regulations in California, it might be more feasible to install solar panels on already disturbed lands (like farmlands or rooftops) rather than undisturbed natural habitats.
Finally yet importantly, any decision about where exactly to place these installations should involve careful study including environmental impact assessments and consultations with local communities.
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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 26th of June 2024
Last Updated: Monday 21st of July 2025
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
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.
