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Flag of United StatesSolar PV Analysis of Sun City, California, United States

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

Sun City, California, located in the Northern Sub Tropics, offers a favorable environment for solar energy generation throughout the year. This location benefits from its geographical position and climate, making it an attractive option for those considering solar PV installations.

Seasonal Solar Performance

The solar energy output at this location varies across seasons, with summer being the most productive period. During summer months, solar panels can generate an impressive 7.87 kWh per day for each kilowatt of installed capacity. Spring follows closely, with a daily output of 7.05 kWh/kW. Autumn sees a moderate decrease in production, yielding 5.20 kWh/day per kW. Winter, as expected, has the lowest output at 3.81 kWh/day per kW, but still provides a reasonable amount of energy.

Ideal Times for Solar Generation

The most ideal times for solar energy generation in Sun City are from late spring through early fall. During these months, longer daylight hours and clearer skies contribute to peak solar panel performance. However, the region's generally sunny climate allows for significant energy production even during the less optimal winter months.

Optimal Panel Tilt Angle

For fixed panel installations in Sun City, the ideal tilt angle to maximize year-round solar production is 29 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the Earth's orbit and the location's latitude.

Environmental and Weather Considerations

Sun City doesn't face significant environmental or weather-related challenges that would substantially impede solar production. The area experiences minimal cloud cover and rainfall, which is advantageous for solar energy generation. However, occasional dust storms and Santa Ana winds can temporarily reduce panel efficiency.

To mitigate these minor issues, regular cleaning and maintenance of solar panels is recommended. Installing panels with a slight tilt can help prevent dust accumulation. Additionally, using high-quality, wind-resistant mounting systems can protect panels during strong wind events.

Overall, Sun City's climate and geographical location make it an excellent choice for solar PV installations, with high potential for year-round energy production and minimal environmental 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 Sun City, California

Seasonal solar PV output for Latitude: 33.7029, Longitude: -117.1966 (Sun City, California, 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 7.87kWh/day in Summer.
Autumn
Average 5.20kWh/day in Autumn.
Winter
Average 3.81kWh/day in Winter.
Spring
Average 7.05kWh/day in Spring.

 

Ideally tilt fixed solar panels 29° South in Sun City, California, United States

To maximize your solar PV system's energy output in Sun City, California, United States (Lat/Long 33.7029, -117.1966) throughout the year, you should tilt your panels at an angle of 29° 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: 33.7029, Longitude: -117.1966, the ideal angle to tilt panels is 29° South

Seasonally adjusted solar panel tilt angles for Sun City, California, 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 Sun City, California, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 29° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
17° South in Summer 38° South in Autumn 48° 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 Sun City, California, United States as follows: In Summer, set the angle of your panels to 17° facing South. In Autumn, tilt panels to 38° facing South for maximum generation. During Winter, adjust your solar panels to a 48° 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 Sun City, California, 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 Sun City, California, 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 Sun City, California, 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 Sun City, California, United States

The topography around Sun City, California, located at latitude 33.7029 and longitude -117.1966, is characterized by a diverse landscape typical of Southern California's inland regions. The area is situated in the Perris Valley, which is part of the larger Inland Empire region. The terrain is generally flat to gently rolling, with occasional hills and small mountains dotting the landscape. To the west of Sun City, the terrain gradually rises towards the Santa Ana Mountains, which form a natural barrier between the inland areas and the coastal regions. These mountains, while not particularly tall, provide a scenic backdrop to the area and influence local weather patterns. To the east, the land remains relatively flat as it extends towards the San Jacinto Mountains in the distance. This flat expanse is part of the broader Perris Valley, which is known for its agricultural heritage and open spaces. The valley floor is punctuated by small hills and low-lying areas, creating a subtle undulating effect across the landscape.

Solar PV Potential

The areas surrounding Sun City offer significant potential for large-scale solar photovoltaic (PV) installations due to several favorable factors. The relatively flat terrain of the Perris Valley provides ample space for expansive solar arrays without the need for extensive land modification. This flat topography also minimizes shading issues, allowing for optimal solar exposure throughout the day. The regions to the east and southeast of Sun City are particularly well-suited for solar PV development. These areas benefit from minimal cloud cover and high levels of solar radiation throughout the year, thanks to the rain shadow effect of the coastal mountain ranges. The open, undeveloped spaces in this direction offer large contiguous plots of land that could accommodate utility-scale solar installations. Additionally, the areas north and northeast of Sun City, extending towards the cities of Perris and Moreno Valley, present opportunities for solar development. These regions feature expansive, relatively flat terrain with good solar exposure and proximity to existing power infrastructure. It's worth noting that while the immediate surroundings of Sun City offer good potential for solar PV, developers would need to consider factors such as land use regulations, environmental impact, and proximity to transmission lines when selecting specific sites for large-scale installations. The combination of favorable topography, abundant sunshine, and available land makes the broader region around Sun City an attractive prospect for solar energy development.

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 Sun City, California, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 18th of April 2025
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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