West Chicago, Illinois, United States is a location with moderate potential for solar energy generation throughout the year. Located in the Northern Temperate Zone, this area experiences significant seasonal variations in solar output that impact the efficiency of photovoltaic (PV) systems.

Seasonal Solar Performance

The solar production at this location shows a clear seasonal pattern. Summer is the most productive season, generating an average of 6.25 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 5.29 kWh/day, while autumn yields 3.39 kWh/day. Winter performance drops considerably to just 2.35 kWh/day per kilowatt installed.

This pattern creates a more than 2.5-fold difference between the best and worst seasons, with summer production being approximately 266% of winter production. For homeowners or businesses considering solar installation, this means planning for significantly reduced output during winter months.

Optimal Installation Angle

For fixed panel installations in West Chicago, the ideal tilt angle to maximize year-round energy production is 36 degrees facing South. This angle represents the best compromise to capture sunlight efficiently across all seasons, accounting for the varying solar elevation throughout the year.

Environmental and Weather Factors

Several factors relevant to West Chicago may impact solar production:

• Snow accumulation during winter months can significantly reduce output by blocking sunlight from reaching panels
• Cloud cover is relatively frequent in the Chicago region, particularly during late fall and winter
• Occasional severe weather events including thunderstorms and hail may pose risks to installations
• Urban air pollution from the greater Chicago area can marginally reduce solar irradiance

Preventative Measures

To maximize solar production despite these challenges, consider these installation practices:

• Install panels at a steeper angle than the optimal 36 degrees if winter production is particularly important, as this helps shed snow more effectively
• Use high-efficiency panels rated for severe weather conditions, including impact-resistant glass for hail protection
• Implement a regular cleaning schedule, especially after snowfall or during periods of high pollen or pollution
• Consider systems with microinverters or power optimizers to minimize the impact when some panels are partially shaded or covered

Overall, while West Chicago isn't ideal for year-round solar production compared to sunnier regions, properly designed systems can still provide substantial energy generation, particularly from spring through fall when output is strongest.

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 West Chicago

Seasonal solar PV output for Latitude: 41.8879, Longitude: -88.1998 (West Chicago, 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 36° South in West Chicago, United States

To maximize your solar PV system's energy output in West Chicago, United States (Lat/Long 41.8879, -88.1998) throughout the year, you should tilt your panels at an angle of 36° 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 West Chicago, 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 West Chicago, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 36° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
26° South in Summer	45° South in Autumn	56° South in Winter	35° 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 West Chicago, 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 West Chicago, 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 West Chicago, United States

The topography of West Chicago, Illinois and its surrounding region is characterized by gently rolling terrain, a remnant of the area's glacial history. Located in DuPage County, approximately 30 miles west of downtown Chicago, West Chicago sits at an elevation of about 770 feet above sea level. The landscape was shaped primarily by the Wisconsin glaciation period, which ended approximately 10,000 years ago, leaving behind a mix of moraines, till plains, and scattered wetland areas. The terrain in and around West Chicago features subtle elevation changes rather than dramatic hills or valleys. This gently undulating landscape is part of the larger Chicago Plain, which extends throughout much of northeastern Illinois. Small creeks and streams crisscross the area, including the West Branch of the DuPage River, which flows through portions of the region. These waterways have carved shallow valleys into the otherwise relatively flat terrain.

Solar Potential in the West Chicago Region

For large-scale solar photovoltaic (PV) development, several areas around West Chicago present favorable conditions. The most suitable locations would be found in the rural and agricultural lands that surround the more developed portions of West Chicago and neighboring communities. These areas offer relatively flat, open spaces with minimal shading from natural features. Particularly promising are the agricultural lands to the west and south of West Chicago proper. These areas feature large, contiguous parcels with minimal tree cover and good solar exposure. The flat to gently sloping terrain in these areas would require minimal grading for solar installation, reducing development costs and environmental impact. Former industrial sites or brownfields in the region could also present opportunities for solar development. West Chicago has a history of industrial activity, and some of these previously developed areas might be suitable for solar arrays, offering the dual benefit of renewable energy production and land reclamation.

Topographical Considerations for Solar Development

While the region's topography is generally favorable for solar PV, there are some considerations worth noting. The subtle variations in elevation throughout the area mean that south-facing gentle slopes would be marginally more productive for solar installations than perfectly flat land or north-facing slopes. Drainage patterns should also be considered when evaluating potential solar sites. The region's glacial history has created some areas with poor drainage, particularly in low-lying sections where clay soils predominate. These areas might require additional engineering for proper water management in a solar installation. The West Chicago area does experience all four seasons distinctly, with cold, snowy winters that can temporarily reduce solar productivity. However, the region's relatively open landscape means that snow typically doesn't remain for extended periods on properly tilted panels, and the area receives sufficient solar radiation throughout the year to support viable solar energy production. The combination of available open space, generally flat terrain, and existing electrical infrastructure makes the rural periphery of West Chicago a potentially attractive location for large-scale solar PV development, particularly as Illinois continues to expand its renewable energy portfolio.

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.