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Flag of United StatesSolar PV Analysis of Kirkland, Illinois, United States

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

Kirkland, Illinois, United States shows moderate solar energy potential with significant seasonal variation typical of its Northern Temperate Zone location. The area experiences a substantial drop in solar production during winter months, making it less than ideal for year-round consistent solar generation.

Seasonal Solar Performance

Summer represents the peak solar production period at this location, generating 6.28 kWh per day per kW of installed capacity. This makes summer the most productive time for solar energy generation. Spring follows as the second-best season with 5.27 kWh per day per kW, offering strong solar output as daylight hours increase and weather conditions improve. Autumn sees a notable decline to 3.29 kWh per day per kW as the sun angle decreases and weather patterns shift. Winter presents the most challenging conditions with only 2.25 kWh per day per kW, representing less than half the summer production capacity.

Optimal Installation Configuration

For maximum year-round energy production at this Kirkland location, solar panels should be installed at a fixed tilt angle of 36 degrees facing south. This angle has been calculated to optimize total annual solar output by accounting for the sun's varying position throughout the year and weighting for solar irradiance data.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Kirkland area can significantly impact solar panel performance:
  • Snow accumulation during winter months can block panels and reduce output
  • Ice formation on panel surfaces creates similar blocking effects
  • Frequent cloud cover and overcast conditions typical of Midwest weather patterns
  • Potential for severe weather including hail storms that could damage panels

Preventative Measures for Better Performance

To maximize solar energy production despite these challenges, several installation strategies can be employed. Panels should be mounted with adequate tilt to promote natural snow and ice shedding, which the recommended 36-degree angle supports well. Installing panels with proper spacing allows for thermal expansion and easier maintenance access for snow removal when necessary. Using high-quality mounting systems designed for local wind and snow loads ensures long-term stability and performance. Consider installing micro-inverters or power optimizers rather than string inverters, as these can minimize the impact when individual panels are partially shaded by snow or debris. Regular maintenance scheduling, particularly before and after winter months, helps ensure optimal performance year-round. While Kirkland's location presents seasonal challenges for solar energy generation, proper installation techniques and equipment selection can help maximize the available solar resource throughout 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 Kirkland, Illinois

Seasonal solar PV output for Latitude: 42.0925, Longitude: -88.8512 (Kirkland, Illinois, 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 6.28kWh/day in Summer.
Autumn
Average 3.29kWh/day in Autumn.
Winter
Average 2.25kWh/day in Winter.
Spring
Average 5.27kWh/day in Spring.

 

Ideally tilt fixed solar panels 36° South in Kirkland, Illinois, United States

To maximize your solar PV system's energy output in Kirkland, Illinois, United States (Lat/Long 42.0925, -88.8512) 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: 42.0925, Longitude: -88.8512, the ideal angle to tilt panels is 36° South

Seasonally adjusted solar panel tilt angles for Kirkland, Illinois, 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 Kirkland, Illinois, 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 46° South in Autumn 56° South in Winter 35° 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 Kirkland, Illinois, United States as follows: In Summer, set the angle of your panels to 26° facing South. In Autumn, tilt panels to 46° 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 35° angle facing South to capture the most solar energy in Kirkland, Illinois, 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 Kirkland, Illinois, 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 Kirkland, Illinois, 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 Kirkland, Illinois, United States

Topography of the Kirkland Area

The topography around Kirkland, Illinois is characterized by gently rolling prairie terrain typical of the upper Midwest region. This area sits within the till plains of northern Illinois, where glacial activity during the last ice age created a landscape of low hills, shallow valleys, and relatively flat agricultural land. The elevation changes are gradual and modest, with the terrain rising and falling in gentle undulations across the countryside. The immediate vicinity of Kirkland features predominantly flat to slightly rolling farmland, with occasional wooded areas along creek beds and property boundaries. Small streams and drainage channels cut through the landscape, creating minor topographical variations but nothing that significantly alters the overall gentle character of the terrain. The soil composition consists largely of fertile glacial till and loess deposits, which have made this region highly suitable for agriculture.

Optimal Areas for Large-Scale Solar Development

The relatively flat agricultural land surrounding Kirkland presents excellent opportunities for large-scale solar photovoltaic installations. The most suitable areas would be the open farm fields that extend in all directions from the town, particularly those with minimal tree coverage and consistent southern exposure. These agricultural areas offer the advantage of large, unobstructed parcels of land with gentle slopes that can accommodate extensive solar arrays without requiring significant grading or earthwork. Areas to the south and southwest of Kirkland would be particularly well-suited for solar development due to their combination of flat terrain and minimal shading from existing structures or vegetation. The agricultural fields in these directions typically have fewer farmsteads and tree lines that might create shadows or obstruct solar panels throughout the day. The gentle rolling hills found throughout the region can actually provide some advantages for solar installations when properly oriented. South-facing slopes, even modest ones, can enhance solar collection efficiency by providing a more optimal angle for panel placement. However, care must be taken to avoid north-facing slopes or areas where hills might cast shadows on adjacent solar arrays. Areas near existing electrical infrastructure would also be preferable for large-scale solar development. The proximity to power lines, substations, and transmission corridors can significantly reduce the cost and complexity of connecting solar installations to the electrical grid. Much of the farmland around Kirkland has reasonable access to electrical infrastructure, making it economically viable for solar development. The relatively stable soil conditions in this glacial till region provide good foundations for solar mounting systems, though proper geotechnical analysis would be necessary for any large installation. The absence of significant geological hazards such as steep slopes, flood-prone areas, or unstable soils makes most of the surrounding agricultural land technically feasible for 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!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Kirkland, Illinois, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 17th of July 2025
Last Updated: Wednesday 6th of August 2025

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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.

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