Azusa, California, located in the Northern Sub Tropics at coordinates 34.123, -117.8988, offers a favorable environment for solar PV energy generation throughout the year. The location's potential for solar energy production varies across seasons, with notable fluctuations in daily electricity output.

Seasonal Solar Performance

Summer stands out as the peak season for solar energy production in Azusa, with an impressive average of 8.37 kWh per day for each kW of installed solar capacity. Spring follows closely behind, generating 7.72 kWh per day. Autumn sees a moderate decrease in output at 5.54 kWh per day, while winter experiences the lowest production at 3.97 kWh per day.

The substantial difference between summer and winter output highlights the impact of seasonal variations on solar energy generation in this location. However, even during the least productive season, the solar panels continue to generate a significant amount of energy.

Optimal Panel Installation

For those considering fixed panel installations in Azusa, the ideal tilt angle to maximize year-round solar production is 30 degrees facing South. This angle has been calculated to optimize energy capture across all seasons, taking into account the Earth's elliptical orbit and the location's specific latitude.

Environmental Considerations

While Azusa generally provides excellent conditions for solar energy production, there are some environmental factors to consider:

• Smog and air pollution from the nearby Los Angeles metropolitan area may occasionally reduce solar irradiance.
• Wildfires, which are not uncommon in Southern California, can temporarily decrease solar panel efficiency due to smoke and ash in the air.

To mitigate these potential issues, regular cleaning and maintenance of solar panels is crucial. Installing panels at a slightly steeper angle than the recommended 30 degrees can help reduce the accumulation of dust and ash. Additionally, using high-quality panels with anti-soiling coatings can improve performance in these conditions.

Despite these minor challenges, Azusa remains an excellent location for solar PV installations, with ample sunlight throughout the year and particularly high production potential during the spring and summer 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 Azusa

Seasonal solar PV output for Latitude: 34.123, Longitude: -117.8988 (Azusa, 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 Azusa, United States

To maximize your solar PV system's energy output in Azusa, United States (Lat/Long 34.123, -117.8988) 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 Azusa, 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 Azusa, 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

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 Azusa, 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 Azusa, 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 Azusa, United States

The topography around Azusa, California, is characterized by a diverse landscape that transitions from flat urban areas to rugged mountainous terrain. Situated at the foot of the San Gabriel Mountains, Azusa lies in the San Gabriel Valley, which is part of the larger Los Angeles metropolitan area. To the south of Azusa, the terrain is predominantly flat, consisting of developed urban and suburban areas. This region is part of the expansive Los Angeles Basin, which stretches towards the Pacific Ocean. The flat valley floor gradually slopes upward as it approaches the foothills of the San Gabriel Mountains to the north. As one moves northward from Azusa, the landscape becomes increasingly hilly and eventually transitions into the steep, forested slopes of the San Gabriel Mountains. These mountains rise dramatically from the valley floor, reaching elevations of over 10,000 feet at their highest points. The San Gabriel Mountains are part of the Transverse Ranges, a series of east-west trending mountain ranges in Southern California.

Potential 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 would have ample sunlight exposure, relatively flat terrain, and minimal environmental or urban constraints. The flat areas to the south and southeast of Azusa in the San Gabriel Valley offer potential for solar PV development. These areas receive abundant sunlight throughout the year and have the advantage of being close to existing power infrastructure and population centers. Another promising region for solar PV installations lies to the northeast of Azusa, in the high desert areas of the Antelope Valley. This region, which includes cities like Palmdale and Lancaster, features vast expanses of flat, sun-drenched land that could be ideal for large-scale solar projects. The Antelope Valley already hosts several significant solar installations due to its favorable conditions. It's important to note that while the mountainous areas north of Azusa receive ample sunlight, their steep terrain and protected status as part of the Angeles National Forest make them less suitable for large-scale solar development. Any potential solar projects would need to carefully consider environmental impacts, land use regulations, and the challenges posed by the topography in these areas.

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.