Solar Energy Potential in Alhambra, California

Alhambra, California, located in the Northern Sub Tropics, offers a promising location for solar PV energy generation throughout the year. The city's geographical position at 34.069° latitude and -118.1461° longitude provides favorable conditions for harnessing solar power, with varying levels of efficiency across different seasons.

Seasonal Solar Performance

Solar panel performance in Alhambra fluctuates throughout the year, with summer being the most productive season. During summer months, solar installations can generate an impressive 8.42 kWh per day for each kW of installed capacity. Spring follows closely, with a daily output of 7.54 kWh/kW. Autumn sees a moderate decrease in solar production, yielding 5.40 kWh/day per kW installed. Winter experiences the lowest output at 3.82 kWh/day per kW, but still maintains a reasonable level of energy generation.

Optimal Panel Placement

For fixed panel installations in Alhambra, 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 Earth's elliptical orbit and the city's specific latitude.

Peak Generation Periods

The most ideal times for solar energy generation in Alhambra are during the summer months, typically from June to August, when days are longest and sunlight is most intense. Spring and early autumn also offer excellent conditions for solar power production.

Environmental Considerations

While Alhambra generally provides favorable conditions for solar energy, there are a few environmental factors to consider: 1. Smog and air pollution: Being part of the Los Angeles metropolitan area, Alhambra can experience periods of poor air quality, which may slightly reduce solar panel efficiency. 2. Occasional Santa Ana winds: These strong, dry winds can carry dust and debris, potentially affecting panel performance. To mitigate these issues, regular cleaning and maintenance of solar panels is recommended. Installing panels at a slight angle can also help prevent dust accumulation. Additionally, using high-quality, smog-resistant solar panels can help maintain optimal performance in urban environments. Overall, Alhambra's climate and geographical location make it an excellent candidate for solar PV installations, with the potential for significant energy production throughout the year, especially 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 Alhambra

Seasonal solar PV output for Latitude: 34.069, Longitude: -118.1461 (Alhambra, 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 Alhambra, United States

To maximize your solar PV system's energy output in Alhambra, United States (Lat/Long 34.069, -118.1461) 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 Alhambra, 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 Alhambra, 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 Alhambra, 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 Alhambra, 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 Alhambra, United States

The topography around Alhambra, California, is characterized by a mix of flat urban areas and nearby hilly terrain. Alhambra itself is situated in the western San Gabriel Valley, which is a relatively flat basin surrounded by mountains. The city lies at the base of the San Gabriel Mountains, which rise dramatically to the north.

To the immediate south and east of Alhambra, the land remains mostly flat, consisting of densely populated suburban areas. This flat terrain extends for several miles before gradually giving way to low hills. To the west, the landscape becomes more varied as it transitions into the Los Angeles basin, with some gentle hills and valleys interspersed among the urban sprawl.

The San Gabriel Mountains dominate the northern horizon, presenting a stark contrast to the flat valley below. These mountains rise steeply, with some peaks reaching over 10,000 feet in elevation. The foothills of these mountains begin just a few miles north of Alhambra, creating a picturesque backdrop for the city.

Regarding areas nearby that would be most suited to large-scale solar PV (photovoltaic) installations, the best locations would likely be found to the northeast and east of Alhambra, in the less densely populated regions of the San Gabriel Valley and beyond. These areas offer several advantages for solar energy production:

1. The Mojave Desert: Located about 50-70 miles northeast of Alhambra, the Mojave Desert provides vast expanses of flat, sunny terrain ideal for large-scale solar farms.
2. Antelope Valley: Situated approximately 40-50 miles north of Alhambra, this area offers wide-open spaces with high sun exposure and relatively flat terrain.
3. Eastern San Gabriel Valley: Some of the less developed areas in the eastern part of the valley, towards San Dimas and Pomona, might offer suitable locations for smaller-scale solar installations.

These regions benefit from California's abundant sunshine and have fewer obstructions that could cast shadows on solar panels. Additionally, they are close enough to major population centers to make power transmission feasible while being far enough away to avoid the space constraints of densely populated urban 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.