Chico, California, located in the Northern Temperate Zone, presents a generally favorable environment for solar energy production throughout the year. With its geographical coordinates at 39.7272° N latitude and -121.8129° W longitude, this location experiences significant seasonal variations in solar energy potential.

Seasonal Solar Performance

Solar panel efficiency in Chico fluctuates considerably across seasons. Summer stands out as the peak period, with an impressive daily output of 8.47 kWh per kW of installed capacity. Spring follows closely, generating 7.36 kWh/day. However, production drops significantly during autumn (4.44 kWh/day) and reaches its lowest point in winter (2.55 kWh/day).

The most productive months for solar energy generation in Chico typically span from late spring through early fall, roughly May to September. During this period, longer daylight hours and clearer skies contribute to optimal solar panel performance.

Optimal Panel Installation

For fixed solar panel installations in Chico, the ideal tilt angle to maximize year-round energy production is 33 degrees facing south. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for the location's latitude and seasonal sun path variations.

Environmental Considerations

While Chico's climate is generally conducive to solar energy production, there are some environmental factors to consider:

1. Wildfire smoke: California's increasing wildfire activity can temporarily reduce solar efficiency due to atmospheric particulates.
2. Fog: Although less common than in coastal areas, occasional fog can impact morning solar production.

To mitigate these issues, consider installing panels with anti-soiling coatings to reduce the impact of smoke particles and dust. Regular cleaning and maintenance can also help maintain optimal performance. Additionally, using microinverters or power optimizers can help minimize the impact of partial shading or reduced irradiance on overall system performance.

In conclusion, despite some seasonal variations and potential environmental challenges, Chico's location offers a favorable setting for solar PV installations, with ample opportunity for significant energy production throughout most of the year.

Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° 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 Chico

Seasonal solar PV output for Latitude: 39.7272, Longitude: -121.8129 (Chico, 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 33° South in Chico, United States

To maximize your solar PV system's energy output in Chico, United States (Lat/Long 39.7272, -121.8129) throughout the year, you should tilt your panels at an angle of 33° 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 Chico, 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 Chico, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
23° South in Summer	43° South in Autumn	54° South in Winter	32° 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 Chico, 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 Chico, 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 Chico, United States

The topography around Chico, California, is characterized by a diverse landscape that transitions from the flat Sacramento Valley to the foothills of the Sierra Nevada mountains. Chico itself is situated on the northeastern edge of the valley, with gentle slopes rising towards the east and more rugged terrain in the surrounding areas. To the west of Chico, the land is predominantly flat, consisting of fertile agricultural fields and grasslands. This area is part of the expansive Sacramento Valley, known for its rich soil and abundant farming. As you move eastward from the city, the terrain gradually becomes more varied, with rolling hills and scattered oak woodlands.

Eastern Foothills

The eastern part of Chico sees a more pronounced change in elevation as it approaches the Sierra Nevada foothills. This area features increasingly steep hills, rocky outcrops, and denser vegetation. Bidwell Park, a large municipal park in Chico, showcases this transition from valley to foothills, with its lower section being relatively flat and its upper section becoming more rugged and elevated.

Waterways

Several creeks and streams flow through the Chico area, including Big Chico Creek and Little Chico Creek. These waterways have carved shallow valleys and contribute to the local topography, creating natural corridors through the landscape.

Potential for Solar PV

When considering areas nearby that would be most suited to large-scale solar PV installations, the flat, open spaces of the Sacramento Valley to the west and southwest of Chico present the most promising opportunities. These areas offer several advantages for solar energy development: 1. Abundant flat land with minimal shading from geographical features or vegetation. 2. High sun exposure due to the lack of obstructions. 3. Proximity to existing infrastructure and power grids. 4. Less competition for land use compared to the more densely populated or forested areas to the east. The agricultural lands in Glenn and Butte counties, particularly those west of Highway 99, could potentially accommodate large solar arrays without significantly impacting valuable ecosystems or scenic landscapes. However, careful consideration would need to be given to balancing solar development with agricultural preservation, as the Sacramento Valley is an important food-producing region. While the foothills to the east of Chico offer some elevated areas with good sun exposure, the more complex terrain and increased vegetation make large-scale solar installations less practical in these locations. Additionally, these areas often have higher ecological and recreational value, which could conflict with extensive solar 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!

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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.