Perris, California, located in the Northern Sub Tropics at latitude 33.8137 and longitude -117.2228, offers a favorable environment for solar PV energy generation throughout the year. The location's solar potential varies across seasons, providing an opportunity for consistent energy production with some fluctuations.

Seasonal Solar Performance

Summer stands out as the peak season for solar energy production in Perris, with an impressive average of 7.87 kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind, generating 7.05 kWh/day. These seasons offer optimal conditions for maximizing solar energy output. Autumn sees a moderate decrease in production, yielding 5.20 kWh/day. While lower than summer and spring, this output still represents a significant energy contribution. Winter experiences the lowest production at 3.81 kWh/day, which is expected due to shorter days and lower sun angles.

Ideal Panel Placement

For fixed panel installations in Perris, the optimal tilt angle to maximize year-round solar production is 30 degrees facing South. This angle has been calculated to capture the most sunlight throughout the year, taking into account the location's latitude and seasonal sun positions.

Environmental Considerations

While Perris generally offers favorable conditions for solar energy production, there are a few environmental factors to consider: 1. Dust and air pollution: The arid climate can lead to dust accumulation on panels, potentially reducing efficiency. Regular cleaning and maintenance can mitigate this issue. 2. High temperatures: Extreme heat during summer months may slightly reduce panel efficiency. Choosing heat-resistant panels and ensuring proper ventilation during installation can help maintain optimal performance. 3. Occasional wildfires: Smoke from wildfires in the region can temporarily reduce solar irradiance. While this is typically a short-term issue, it's worth considering when planning system capacity. To address these factors, consider implementing dust-resistant panel coatings, installing panels with a slight tilt to facilitate natural cleaning by rain, and using high-quality, heat-resistant solar panels. Additionally, a robust cleaning and maintenance schedule will help ensure consistent performance throughout the year. Overall, Perris, California provides an excellent location for solar PV energy generation, with strong potential across all seasons and particularly high output during summer and spring months.

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 Perris

Seasonal solar PV output for Latitude: 33.8137, Longitude: -117.2228 (Perris, 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 Perris, United States

To maximize your solar PV system's energy output in Perris, United States (Lat/Long 33.8137, -117.2228) 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 Perris, 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 Perris, 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	48° South in Winter	27° 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 Perris, 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 Perris, 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.

Topography for solar PV around Perris, United States

The topography around Perris, California, is characterized by a diverse landscape that includes both flat areas and rolling hills. Situated in the Inland Empire region of Southern California, Perris is located in a valley surrounded by mountain ranges. To the west, the Santa Ana Mountains rise up, while the San Jacinto Mountains can be seen to the east. The city itself sits at an elevation of around 1,450 feet above sea level. The immediate area around Perris features a mix of urban development and open spaces. The terrain is generally flat to gently sloping, with some areas of more pronounced hills and small valleys. This varied topography is the result of geological processes over millions of years, including tectonic activity and erosion.

Suitable Areas for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations for solar farms are typically flat or gently sloping areas with abundant sunshine and minimal shading. The regions to the east and southeast of Perris offer promising potential for solar PV development. These areas, extending towards the Menifee Valley and the San Jacinto Valley, feature expansive stretches of relatively flat land with excellent sun exposure. The climate in this region is characterized by hot, dry summers and mild winters, which is conducive to solar energy production. Another area that could be suitable for large-scale solar installations is the land to the north and northeast of Perris, extending towards Moreno Valley. This region also offers vast open spaces with favorable topography for solar farms. The gentle slopes in these areas can actually be advantageous for solar panel placement, allowing for optimal angling towards the sun. It's important to note that while the topography and climate of these areas are favorable for solar PV, other factors such as land ownership, environmental considerations, and proximity to existing power infrastructure would also need to be taken into account when planning large-scale solar projects. Additionally, care should be taken to balance renewable energy development with the preservation of natural habitats and agricultural land in the region.

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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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.