Flag of United States

Flag of United StatesSolar PV Analysis of Blue Island, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Blue Island, United States (by season)

Solar Energy Potential in Blue Island, Illinois

Blue Island, Illinois, located in the Northern Temperate Zone, offers varying potential for solar energy generation throughout the year. The city's geographical position at latitude 41.6574 and longitude -87.6798 experiences significant seasonal fluctuations in solar output. Summer presents the most favorable conditions for solar energy production, with an average daily output of 6.25 kWh per kW of installed solar capacity. This high yield is due to longer daylight hours and the sun's higher position in the sky. Spring follows as the second-best season, generating 5.26 kWh per day, making it another productive period for solar energy. Autumn sees a noticeable decrease in solar output, with 3.32 kWh per day. Winter, as expected, offers the lowest solar potential, producing only 1.99 kWh per day. This significant drop is attributed to shorter daylight hours, lower sun angles, and increased cloud cover typical of the region's winter months.

Optimal Panel Installation

For fixed solar panel installations in Blue Island, the ideal tilt angle to maximize year-round production is 36 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the seasonal variations in the sun's position.

Environmental and Weather Considerations

Several factors can impact solar production in Blue Island: 1. Snow accumulation: Winter snowfall can temporarily reduce panel efficiency. Regular snow removal or installing panels at a steeper angle can mitigate this issue. 2. Cloud cover: The region experiences significant cloud cover, especially in winter. Using high-efficiency panels can help maximize energy production even in overcast conditions. 3. Temperature extremes: While cold temperatures can actually improve panel efficiency, extreme heat in summer might slightly reduce performance. Proper ventilation behind panels can help manage this. 4. Air pollution: Being near Chicago, Blue Island may experience some urban air pollution, which can marginally reduce solar irradiance. Regular panel cleaning can help maintain optimal performance. To address these factors, consider using durable, high-efficiency panels, implementing a robust cleaning schedule, and ensuring proper installation techniques. Additionally, a solar tracking system, while more expensive, could significantly increase energy production by following the sun's daily path.

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 Blue Island

Seasonal solar PV output for Latitude: 41.6574, Longitude: -87.6798 (Blue Island, 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:

Summer
Average 6.25kWh/day in Summer.
Autumn
Average 3.32kWh/day in Autumn.
Winter
Average 1.99kWh/day in Winter.
Spring
Average 5.26kWh/day in Spring.

 

Ideally tilt fixed solar panels 36° South in Blue Island, United States

To maximize your solar PV system's energy output in Blue Island, United States (Lat/Long 41.6574, -87.6798) 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.

The sun
At Latitude: 41.6574, Longitude: -87.6798, the ideal angle to tilt panels is 36° South

Seasonally adjusted solar panel tilt angles for Blue Island, 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 Blue Island, 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 34° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Blue Island, United States as follows: In Summer, set the angle of your panels to 26° facing South. In Autumn, tilt panels to 45° facing South for maximum generation. During Winter, adjust your solar panels to a 56° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 34° angle facing South to capture the most solar energy in Blue Island, United States.

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 Blue Island, 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 Blue Island, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Blue Island, United States

Blue Island, located in Cook County, Illinois, is situated in a relatively flat region characteristic of the Midwest United States. The area around Blue Island is part of the vast Chicago metropolitan area, which lies on the southwestern shore of Lake Michigan. Despite its name, Blue Island is not actually an island but rather a slight elevation in the otherwise flat landscape. The topography of the area surrounding Blue Island is predominantly characterized by gently rolling plains and prairies. The land is generally low-lying, with minimal variations in elevation. This flat terrain is a result of glacial activity during the last ice age, which left behind a landscape of subtle ridges and shallow depressions. To the east of Blue Island, the terrain gradually slopes towards Lake Michigan, creating a gentle incline. The western and southern areas maintain their flat nature, stretching out into the suburban landscape of greater Chicago. Small streams and creeks meander through the region, but there are no significant hills or valleys to speak of.

Solar PV Potential

When considering areas nearby that would be most suited for large-scale solar PV installations, several factors come into play. The flat terrain of the region surrounding Blue Island offers advantages for solar development. Areas to the south and west of Blue Island would likely be most suitable for large-scale solar PV projects for several reasons: Firstly, these areas tend to have more open, undeveloped land compared to the densely populated regions closer to Chicago's city center. This availability of space is crucial for accommodating extensive solar arrays. Secondly, the lack of significant elevation changes means there are fewer obstacles to block sunlight, allowing for more consistent solar exposure throughout the day. The flat landscape also simplifies the construction and maintenance of solar installations. Additionally, areas further from Lake Michigan may experience slightly less cloud cover, as the lake can sometimes generate localized cloud formations that could impact solar efficiency closer to the shoreline. However, it's important to note that while the topography is favorable, other factors such as local zoning laws, grid connectivity, and environmental considerations would also play crucial roles in determining the feasibility of large-scale solar PV projects 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!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Blue Island, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 17th of April 2025
Last Updated: Monday 11th of August 2025

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

"Just like the sun juicing up solar PV panels, coffee is our liquid sunshine that fuels our research and development shenanigans!" 😊
Buy me a coffee - Thanks for your support!

Share this with your friends!



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.

Worldwide Solar PV Analysis of 20,000 Locations

Helping you assess viability of solar PV for your site

profileSOLAR on YouTube

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.

Calculate Your Optimal Solar Panel Tilt Angle