Solar PV Analysis of South San Francisco, United States
South San Francisco, California, located in the Northern Temperate Zone, offers a generally favorable environment for solar PV energy generation throughout the year. This location experiences significant seasonal variations in solar energy production, with peak performance during the summer months.
Seasonal Solar Performance
Summer stands out as the most productive season, with an impressive average daily output of 7.04 kWh per kW of installed solar capacity. Spring follows closely behind, generating 6.79 kWh/day. These seasons provide excellent opportunities for maximizing solar energy production.
Autumn sees a noticeable decrease in output, averaging 4.36 kWh/day. Winter experiences the lowest production, with 3.06 kWh/day. Despite the reduced output during colder months, the location still maintains a reasonable level of solar energy generation year-round.
Optimal Panel Installation
For fixed panel installations in South San Francisco, the ideal tilt angle to maximize year-round solar production is 33 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the location's latitude and seasonal sun patterns.
Environmental Considerations
While South San Francisco generally provides favorable conditions for solar energy production, there are a few environmental factors to consider:
- Fog: The area is prone to marine layer fog, particularly during summer mornings. This can temporarily reduce solar output.
- Air pollution: Being in the San Francisco Bay Area, occasional smog or haze may slightly impact solar efficiency.
Mitigation Strategies
To address these environmental factors and optimize solar production, consider the following preventative measures:
1. Use high-efficiency solar panels that perform well in diffuse light conditions, helping to mitigate the impact of fog and haze.
2. Implement a regular cleaning schedule to remove any accumulated dust or pollutants from the panels, ensuring maximum light absorption.
3. Consider installing a solar tracking system, which can adjust panel angles throughout the day to maximize exposure to available sunlight, particularly beneficial during foggy periods.
Overall, South San Francisco provides a suitable location for solar PV installations, with strong potential for energy generation, especially during spring and summer months. By addressing the minor environmental challenges, property owners can expect reliable and efficient solar energy production throughout the year.
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 South San Francisco
Seasonal solar PV output for Latitude: 37.6538, Longitude: -122.4257 (South San Francisco, 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 33° South in South San Francisco, United States
To maximize your solar PV system's energy output in South San Francisco, United States (Lat/Long 37.6538, -122.4257) throughout the year, you should tilt your panels at an angle of 33° 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 South San Francisco, 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 South San Francisco, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° 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 | 42° South in Autumn | 52° South in Winter | 30° 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 South San Francisco, 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 South San Francisco, 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 South San Francisco, United States
The topography around South San Francisco, United States, is quite varied and interesting. This area is located on the San Francisco Peninsula, which is known for its diverse landscape. The city itself is situated in a relatively flat area near the western shore of San Francisco Bay, but it's surrounded by more dramatic terrain.
To the west of South San Francisco, the land rises steeply into the Santa Cruz Mountains. These hills and ridges form a natural barrier between the bay area and the Pacific Ocean. The most prominent feature in this direction is San Bruno Mountain, which stands at about 1,300 feet (400 meters) tall. This mountain is clearly visible from most parts of South San Francisco and provides a striking backdrop to the urban landscape.
To the east, the terrain slopes gently down to the shoreline of San Francisco Bay. This area is largely urbanized but includes some marshlands and tidal flats near the water's edge. The bay itself is a significant geographical feature, influencing the local climate and providing a stark contrast to the hilly western regions.
To the north, the land continues to be relatively flat as it stretches towards San Francisco International Airport and the city of San Francisco beyond. To the south, the terrain remains mostly level as it extends towards other Peninsula cities like San Bruno and Millbrae.
Regarding areas suitable for large-scale solar PV (photovoltaic) installations, the most promising locations would likely be found to the east and south of South San Francisco. The flatter areas near the bay, particularly if there are large industrial zones or open spaces, could potentially accommodate solar farms. These areas generally have less shading from hills and buildings, allowing for maximum sun exposure throughout the day.
However, it's important to note that the San Francisco Bay Area is heavily urbanized, which limits the availability of large, open spaces needed for utility-scale solar installations. Smaller-scale rooftop solar systems are more common in this region due to the dense urban development. For truly large-scale solar PV projects, one might need to look further inland, towards the Central Valley of California, where there's more open, flat land available and even more consistent sunshine.
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: Monday 19th of August 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.
