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Flag of United StatesSolar PV Analysis of San Dimas, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in San Dimas, United States (by season)

Solar Energy Potential in San Dimas, California

San Dimas, California, located in the Northern Sub Tropics, offers a promising location for solar energy generation. With its geographical coordinates at 34.1049 latitude and -117.8132 longitude, this city experiences favorable conditions for solar PV installations throughout the year. The seasonal variation in solar energy production at this location is notable. Summer stands out as the most productive season, with an impressive 8.37 kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind, generating 7.72 kWh/day. Autumn sees a moderate decrease in output at 5.54 kWh/day, while winter experiences the lowest production at 3.97 kWh/day.

Optimal Times for Solar Generation

The long, sunny days of summer make it the ideal time for solar energy production in San Dimas. Spring is also highly favorable, with its clear skies and increasing daylight hours. While autumn and winter see reduced output, the region's mild climate ensures that solar panels continue to generate significant energy even during these seasons.

Panel Tilt Angle for Maximum Efficiency

For those considering a fixed panel installation in San Dimas, the ideal tilt angle to maximize year-round solar production is 30 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the city's latitude and the Earth's elliptical orbit.

Environmental Considerations

San Dimas benefits from a generally favorable climate for solar energy production. However, there are a few environmental factors to consider:
  • Occasional Santa Ana winds can bring dust and debris, potentially reducing panel efficiency.
  • Wildfires in the region may temporarily decrease air quality and solar irradiance.
To mitigate these issues, regular panel cleaning and maintenance are recommended. Installing panels at a slight angle can help prevent dust accumulation. Additionally, choosing high-quality, durable panels can ensure better performance in varying weather conditions. Overall, San Dimas presents an excellent location for solar PV installations, with its abundant sunshine and mild climate contributing to strong year-round energy production potential.

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 San Dimas

Seasonal solar PV output for Latitude: 34.1049, Longitude: -117.8132 (San Dimas, 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:

Summer
Average 8.37kWh/day in Summer.
Autumn
Average 5.54kWh/day in Autumn.
Winter
Average 3.97kWh/day in Winter.
Spring
Average 7.72kWh/day in Spring.

 

Ideally tilt fixed solar panels 30° South in San Dimas, United States

To maximize your solar PV system's energy output in San Dimas, United States (Lat/Long 34.1049, -117.8132) 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.

The sun
At Latitude: 34.1049, Longitude: -117.8132, the ideal angle to tilt panels is 30° South

Seasonally adjusted solar panel tilt angles for San Dimas, 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 Dimas, 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
18° South in Summer 39° South in Autumn 49° South in Winter 27° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in San Dimas, United States as follows: In Summer, set the angle of your panels to 18° facing South. In Autumn, tilt panels to 39° facing South for maximum generation. During Winter, adjust your solar panels to a 49° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 27° angle facing South to capture the most solar energy in San Dimas, United States.

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 Dimas, 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 Dimas, United States.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around San Dimas, United States

The topography around San Dimas, California, is characterized by a mix of flat urban areas and hilly terrain. San Dimas is situated in the eastern part of Los Angeles County, nestled at the foot of the San Gabriel Mountains. The city itself is primarily built on relatively flat land, but it's surrounded by more varied topography.

To the north of San Dimas, the landscape quickly transitions into the foothills of the San Gabriel Mountains. These hills gradually rise into steeper, more rugged terrain as you move further north. The mountains provide a dramatic backdrop to the city and create a natural boundary between the urban areas of the Los Angeles Basin and the more sparsely populated regions to the north.

To the south and east of San Dimas, the land is generally flatter, consisting of suburban developments and some remaining agricultural areas. This flatter terrain extends towards the neighboring cities of Pomona and La Verne. To the west, the landscape becomes slightly more undulating as it approaches the San Jose Hills.

Regarding areas nearby that would be most suited to large-scale solar PV (photovoltaic) installations, the most promising locations would likely be found to the east and northeast of San Dimas. The desert regions of San Bernardino County, particularly areas around Victorville and Barstow, offer vast expanses of flat, sun-drenched land that could be ideal for solar farms.

These desert areas benefit from several factors that make them suitable for solar PV projects:

  • High levels of annual sunshine
  • Large tracts of undeveloped land
  • Relatively flat terrain, which simplifies installation and maintenance
  • Lower land costs compared to more densely populated areas
  • Fewer conflicts with urban development or agriculture

While these desert locations are not immediately adjacent to San Dimas, they are within a reasonable distance for power transmission to the greater Los Angeles area. It's worth noting that any large-scale solar project would need to consider environmental impacts, grid connection capabilities, and local regulations before proceeding.

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

Article: Solar PV Analysis of San Dimas, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 8th 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.

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