Rhinelander, Wisconsin presents moderate to challenging conditions for year-round solar energy generation, with significant seasonal variations that reflect its Northern Temperate Zone climate.

Seasonal Solar Performance

The solar energy output at this location varies dramatically throughout the year. Summer provides the strongest performance at 6.47 kWh per day per kW of installed capacity, making it an excellent time for solar generation. Spring offers good production levels at 4.97 kWh per day per kW, providing a solid shoulder season for energy collection. However, the colder months present considerable challenges. Autumn production drops to 3.04 kWh per day per kW, while winter performance falls to just 1.94 kWh per day per kW - less than one-third of summer output. This dramatic seasonal swing means solar installations must be sized appropriately to account for winter's limited production. For fixed panel installations at this location, the optimal tilt angle is 39 degrees facing south to maximize total year-round energy production.

Environmental and Weather Challenges

Several factors in Rhinelander can significantly impact solar panel performance:

• Heavy snow accumulation during Wisconsin winters can completely block panels
• Ice formation can create persistent coverage even after snowfall ends
• Frequent cloud cover and overcast conditions reduce solar irradiance
• Cold temperatures, while actually improving panel efficiency, often coincide with reduced sunlight

Preventative Installation Measures

To maximize energy production despite these challenges, several installation strategies prove effective. Installing panels at steeper angles (like the recommended 39 degrees) helps snow slide off more easily than flatter installations. Ensuring adequate spacing between panel rows prevents snow buildup and shading issues. Selecting panels with anti-reflective coatings and smooth surfaces reduces ice adhesion. Installing heating cables or snow melting systems, while adding cost, can maintain winter production in critical applications. Regular maintenance access should be planned for manual snow removal when necessary. Ground-mounted systems often perform better than rooftop installations in snowy climates, as they're easier to clear and can be positioned for optimal snow shedding. Battery storage systems become particularly valuable at this location to store excess summer production for use during the low-production winter months.

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 Rhinelander

Seasonal solar PV output for Latitude: 45.6366, Longitude: -89.4121 (Rhinelander, 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 39° South in Rhinelander, United States

To maximize your solar PV system's energy output in Rhinelander, United States (Lat/Long 45.6366, -89.4121) throughout the year, you should tilt your panels at an angle of 39° 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 Rhinelander, 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 Rhinelander, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 39° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
29° South in Summer	49° South in Autumn	59° South in Winter	39° 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 Rhinelander, 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 Rhinelander, 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 Rhinelander, United States

Topographical Features of the Rhinelander Region

The landscape surrounding Rhinelander, Wisconsin is characterized by gently rolling terrain typical of the North Woods region. This area sits within the Northern Highland physiographic province, where elevations generally range from 1,400 to 1,700 feet above sea level. The topography was shaped by glacial activity during the last ice age, creating a relatively flat to moderately undulating landscape with numerous lakes, wetlands, and forested areas.

The region features scattered hills and ridges interspersed with valleys and depressions that often contain water bodies. Dense forests of mixed hardwoods and conifers dominate much of the landscape, including maple, birch, aspen, pine, and spruce. The Rhinelander area contains hundreds of lakes and ponds of varying sizes, along with extensive wetland systems and meandering streams that drain into the Wisconsin River system.

Soil conditions in the region are generally sandy and well-drained, having been deposited by glacial outwash. However, many areas also contain organic soils and wetland deposits. The relatively flat terrain and stable soil conditions make construction and development feasible in many locations, though environmental considerations regarding forests and wetlands often influence land use decisions.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations near Rhinelander would be existing cleared agricultural lands and previously developed areas. Open farmland and pastures offer the best combination of cleared terrain, appropriate soil conditions, and minimal environmental impact. These areas typically require less site preparation and avoid conflicts with forest preservation or wetland protection requirements.

Former industrial sites, abandoned gravel pits, and other previously disturbed lands present excellent opportunities for solar development. These locations often have existing road access and electrical infrastructure nearby, which reduces development costs. The relatively flat topography of such sites minimizes grading requirements and allows for efficient solar panel array layouts.

Areas with gentle south-facing slopes would be particularly advantageous for solar installations, as they naturally orient panels toward optimal sun exposure angles. However, the generally flat terrain throughout much of the region means that panel tilt can be engineered regardless of natural slope orientation.

Locations near existing electrical transmission infrastructure would be preferable to minimize interconnection costs. The region's relatively stable soils and low seismic activity provide good foundation conditions for solar mounting systems. Areas with minimal tree cover and away from wetland boundaries would face fewer regulatory hurdles and environmental constraints during the permitting process.

Agricultural lands that are less productive or have been taken out of active farming represent prime candidates for solar development, as they balance land availability with minimal impact on active farming operations or natural ecosystems. These sites often have good road access for construction and maintenance activities while maintaining appropriate distances from residential areas.

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.