Mattawan, Michigan, located in the Northern Temperate Zone, presents a moderately suitable location for year-round solar PV energy generation, though with significant seasonal variations that are typical for this latitude.

Seasonal Solar Production Patterns

The solar energy output at this location shows dramatic seasonal differences. Summer production reaches its peak at 6.36 kWh per day per kW of installed capacity, making it the most productive season. Spring follows as the second-best performing season with 5.38 kWh per day per kW, offering excellent solar generation potential. Autumn production drops considerably to 3.08 kWh per day per kW, while winter presents the most challenging conditions with only 1.77 kWh per day per kW. This represents more than a three-fold difference between peak summer and winter production levels.

Optimal Installation Configuration

For fixed panel installations at Mattawan, the ideal tilt angle is 36 degrees facing south to maximize total year-round solar production. This angle is calculated to optimize energy capture across all seasons by accounting for the sun's changing position throughout the year and weighting for solar irradiance potential.

Local Environmental and Weather Challenges

Several significant factors in the Mattawan area can impede solar production and require careful consideration during installation:

• Snow accumulation: Michigan winters bring substantial snowfall that can completely block solar panels for extended periods
• Ice formation: Freezing conditions can create ice buildup on panel surfaces, reducing efficiency
• Cloud cover: The region experiences frequent overcast conditions, particularly during autumn and winter months
• Severe weather: Hailstorms, high winds, and ice storms can potentially damage solar installations

Preventative Measures for Enhanced Production

To maximize solar energy production despite these challenges, several installation strategies prove effective:

• Steeper tilt angles: While 36 degrees is optimal for year-round production, slightly steeper angles can help snow slide off more readily
• Quality mounting systems: Robust racking designed for high wind and snow loads prevents structural damage
• Panel selection: Choose panels with anti-reflective coatings and good low-light performance for cloudy conditions
• Strategic placement: Install panels away from trees or structures that might drop debris or create additional shading
• Accessible design: Plan installations that allow safe snow removal when necessary, though panels often self-clear due to their smooth surface and heat generation

Despite the seasonal challenges, Mattawan's location offers reasonable solar potential, particularly during the warmer months when energy demand for cooling is typically highest. The strong spring and summer production can help offset the reduced winter output in annual energy calculations.

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 Mattawan

Seasonal solar PV output for Latitude: 42.2095, Longitude: -85.7845 (Mattawan, 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 Mattawan, United States

To maximize your solar PV system's energy output in Mattawan, United States (Lat/Long 42.2095, -85.7845) 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 Mattawan, 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 Mattawan, 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 Mattawan, 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 Mattawan, 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 Mattawan, United States

Regional Topography and Terrain

Mattawan is situated in southwestern Michigan within Kalamazoo County, positioned in a landscape characterized by gently rolling hills and relatively modest elevation changes. The area sits at approximately 900 feet above sea level and forms part of the broader Great Lakes Plains physiographic region. This terrain was shaped by glacial activity during the last ice age, resulting in a mixture of moraines, outwash plains, and scattered wetlands that create the undulating topography visible today.

The immediate vicinity around Mattawan features predominantly agricultural land interspersed with residential developments and patches of deciduous forest. The terrain slopes gradually toward the Kalamazoo River valley to the north, while slightly higher ground extends to the south and east. Most elevation changes in the area are gradual rather than steep, with rolling hills that rarely exceed 100 feet of relief between valleys and ridgetops.

Drainage Patterns and Water Features

The region's drainage network is dominated by small tributaries that flow northward toward the Kalamazoo River. Several creeks and seasonal streams wind through the landscape, creating narrow floodplains and occasional wetland areas. These water features generally occupy the lower-lying portions of the terrain, while the slightly elevated areas between drainage corridors offer more consistent slopes and better drainage characteristics.

Scattered throughout the area are small lakes, ponds, and wetland complexes that reflect the glacial origins of the landscape. These features, while adding to the natural beauty of the region, can influence land use patterns and create constraints for certain types of development in specific locations.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Mattawan would be found on the gently sloping agricultural fields that occupy the slightly elevated areas between major drainage corridors. These locations typically offer several advantages including relatively flat to gently rolling terrain that minimizes grading requirements, good drainage characteristics that reduce foundation concerns, and existing cleared land that eliminates the need for extensive tree removal.

Areas to the south and southeast of Mattawan present particularly favorable conditions, where open farmland extends across broad, gently undulating terrain with southern-facing slopes that would maximize solar exposure. The higher ground in these areas also tends to have fewer wetland restrictions and better access to existing road infrastructure, which would facilitate construction and maintenance activities.

The agricultural lands to the east and southwest of the community also offer promising opportunities, particularly where large contiguous parcels exist with minimal fragmentation from residential development or natural features. These areas benefit from the region's generally open character and the absence of significant topographic obstacles that might create shading issues or complicate installation procedures.

Less suitable areas for solar development would include the lower-lying zones near creek corridors and wetlands, where seasonal flooding potential and regulatory restrictions might pose challenges. Similarly, the more heavily forested areas scattered throughout the region would require extensive clearing and might face greater environmental scrutiny, making them less economically attractive for solar development despite potentially suitable underlying topography.

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.