Crete, Illinois, located in the Northern Temperate Zone, presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variations that are typical for this climate region.

Seasonal Solar Performance

The solar energy output at this location shows dramatic seasonal swings. Summer delivers the strongest performance at 6.25 kWh per day per kW of installed solar capacity, making it the prime season for solar generation. Spring follows as the second-best season with 5.26 kWh per day per kW, offering excellent production during the longer days of March through May. Autumn production drops to 3.32 kWh per day per kW as daylight hours decrease and sun angles become less favorable. Winter presents the most challenging period, generating only 2.01 kWh per day per kW, representing less than one-third of summer output. For maximum year-round energy production from a fixed panel installation at this location, solar panels should be tilted at 36 degrees facing south. This angle optimizes the balance between seasonal sun positions throughout the year.

Local Environmental Challenges

Several environmental and weather factors in the Crete, Illinois area can significantly impact solar energy production:

• Snow accumulation during winter months can completely block solar panels
• Ice formation can reduce panel efficiency and create safety hazards
• Frequent cloud cover and overcast conditions common to the Great Lakes region
• High humidity levels that can reduce solar irradiance
• Severe thunderstorms with potential hail damage

Preventative Installation Measures

To maximize solar energy production despite these challenges, several installation strategies prove effective. Installing panels at the optimal 36-degree tilt helps snow slide off naturally rather than accumulating on flat surfaces. This angle also improves drainage of rain and melting ice. Using high-quality tempered glass panels provides better resistance to hail damage, while proper grounding and surge protection systems protect against lightning strikes during thunderstorms. Installing panels with adequate spacing allows for better air circulation, reducing humidity-related efficiency losses. Regular maintenance becomes crucial in this climate, including periodic cleaning to remove dust, pollen, and debris that can accumulate more readily in humid conditions. Planning for safe snow removal access during winter months ensures panels can be cleared when natural shedding isn't sufficient. Despite the seasonal challenges, Crete's location still offers reasonable solar potential, particularly during the productive spring and summer months when energy demand for cooling systems typically peaks.

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 Crete

Seasonal solar PV output for Latitude: 41.4445, Longitude: -87.6314 (Crete, 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 Crete, United States

To maximize your solar PV system's energy output in Crete, United States (Lat/Long 41.4445, -87.6314) 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 Crete, 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 Crete, 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
25° South in Summer	45° South in Autumn	56° South in Winter	34° 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 Crete, 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 Crete, 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 Crete, United States

Topographical Features Around Crete, Illinois

The area surrounding Crete, Illinois is characterized by relatively flat to gently rolling terrain typical of the greater Chicago metropolitan region. This location sits within the vast prairie landscape that defines much of northeastern Illinois, where the topography was largely shaped by glacial activity during the last ice age. The terrain consists primarily of low-relief plains with subtle undulations, creating an environment where elevation changes are generally modest and gradual. The immediate vicinity around Crete features agricultural land interspersed with residential and commercial developments. The landscape is predominantly open, with scattered woodlands and small creek valleys that create minor topographical variations. These waterways, including tributaries of the Little Calumet River system, have carved shallow valleys through the otherwise level terrain, though these depressions are typically not dramatic enough to significantly impact large-scale development projects.

Optimal Areas for Large-Scale Solar Development

The flat to gently rolling topography throughout this region presents excellent opportunities for large-scale solar photovoltaic installations. The most suitable areas would be the expansive agricultural fields that dominate the landscape south and west of Crete, where the terrain is consistently level and offers minimal grading requirements for solar array installation. Areas with south-facing gentle slopes would be particularly advantageous, as they provide natural optimization for solar panel positioning while maintaining the economic benefits of straightforward construction. The open prairie landscape means that shading from natural features is rarely a concern, and the relatively uniform elevation allows for efficient layout of solar tracking systems or fixed-tilt installations. The agricultural zones extending toward the southwest offer some of the most promising locations, where large contiguous parcels of flat land are available. These areas benefit from minimal tree cover and consistent soil conditions that would support the foundation requirements for utility-scale solar facilities. Additionally, the proximity to existing electrical infrastructure along major transportation corridors enhances the feasibility of connecting large solar installations to the regional power grid. Areas near the floodplains of local waterways should generally be avoided for major installations, not due to significant elevation changes, but because of potential drainage and permitting complications. The higher, well-drained prairie areas represent the ideal combination of suitable topography, accessibility, and development potential for substantial solar energy projects.

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.