Solar PV Analysis of Orinda, United States
Orinda, California, located in the Northern Temperate Zone, offers a generally favorable environment for solar energy production throughout the year. This location, with coordinates 37.8828, -122.1717, experiences significant seasonal variations in solar energy output, which is typical for its latitude.
Seasonal Solar Performance
Solar panel performance in Orinda peaks during the summer months, with an impressive average daily output of 7.04 kWh per kW of installed capacity. Spring follows closely behind, generating 6.79 kWh/day. Autumn sees a moderate decrease to 4.36 kWh/day, while winter experiences the lowest output at 3.06 kWh/day.
The substantial difference between summer and winter production highlights the impact of seasonal changes on solar energy generation in this region. Despite the winter dip, Orinda's overall yearly solar potential remains quite good, making it a suitable location for solar PV installations.
Optimal Panel Positioning
For fixed panel installations in Orinda, 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, balancing the varying sun positions across seasons.
Environmental Considerations
While Orinda's climate is generally conducive to solar energy production, there are a few environmental factors to consider:
- Fog: The San Francisco Bay Area, including Orinda, can experience marine layer fog, particularly in the summer mornings. This may temporarily reduce solar output in the early hours of the day.
- Wildfire smoke: California's wildfire season can occasionally impact air quality and solar radiation reaching the panels.
To mitigate these factors, consider installing panels at a slightly steeper angle to allow morning fog to roll off more easily. Regular cleaning and maintenance can help combat any ash or particulate buildup from wildfires. Additionally, using high-efficiency panels can help maximize production even during less-than-ideal conditions.
Overall, Orinda's location provides a good balance of solar potential throughout the year, with long, sunny summers compensating for the shorter winter days. With proper installation and maintenance, solar PV systems in this area can be highly effective for generating clean, renewable energy.
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 Orinda
Seasonal solar PV output for Latitude: 37.8828, Longitude: -122.1717 (Orinda, 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 Orinda, United States
To maximize your solar PV system's energy output in Orinda, United States (Lat/Long 37.8828, -122.1717) 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 Orinda, 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 Orinda, 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 Orinda, 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 Orinda, 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 Orinda, United States
The topography around Orinda, California, is characterized by a mix of rolling hills, valleys, and small mountains. This area is part of the East Bay region, located east of San Francisco Bay. The landscape is generally hilly, with elevations ranging from about 200 feet to over 1,000 feet above sea level in some parts.
Orinda itself is nestled in a valley surrounded by hills, with the Berkeley Hills to the west and the Briones Hills to the east. The terrain is marked by numerous small creeks and streams that flow through the valleys, creating a varied landscape. The hills are often covered with oak woodlands and grasslands, giving the area a picturesque, semi-rural feel despite its proximity to urban centers.
For large-scale solar PV installations, the most suitable areas nearby would likely be found in the more open, flatter regions to the east of Orinda. The Livermore Valley, located about 10-15 miles east of Orinda, offers more expansive, level terrain that could be better suited for solar farms. This area has less tree cover and more open spaces, which are ideal for maximizing sun exposure.
Additionally, some of the gentler slopes and hilltops in the immediate vicinity of Orinda might be suitable for smaller solar installations. However, the hilly terrain and abundant tree cover in much of the immediate area around Orinda pose challenges for large-scale solar projects. Any potential sites would need to be carefully evaluated for their solar exposure, taking into account factors such as slope, orientation, and shading from nearby hills or vegetation.
It's worth noting that while the topography around Orinda itself may not be ideal for large-scale solar PV, the broader Bay Area region has significant potential for solar energy development. The key is finding locations that balance the need for open, sunny spaces with proximity to existing power infrastructure and consideration of local land use 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: Thursday 3rd of October 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.
