Mount Horeb, Wisconsin shows moderate solar energy potential with significant seasonal variation typical of northern temperate climates. Located at coordinates 43.0049, -89.7395, this area experiences the characteristic four-season weather patterns that create distinct peaks and valleys in solar production throughout the year.
Seasonal Solar Performance
Summer represents the peak solar generation period at Mount Horeb, producing 6.35 kWh per day per kW of installed capacity. This strong summer performance reflects the combination of longer days and higher sun angles typical of Wisconsin's continental climate. Spring follows as the second-best season with 5.14 kWh per day per kW, making the April through September period the most productive time for solar energy generation. Autumn production drops to 3.24 kWh per day per kW as daylight hours decrease and sun angles lower. Winter presents the most challenging conditions, with output falling to just 2.23 kWh per day per kW of installed capacity. This represents roughly one-third of summer production levels, highlighting the significant seasonal variation at this latitude.Optimal Panel Configuration
For maximum year-round energy production at Mount Horeb, solar panels should be installed at a fixed tilt angle of 37 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's changing position throughout the seasons and weighting the angles based on actual solar irradiance data for this location.Environmental Challenges and Solutions
Several environmental factors can significantly impact solar production in Mount Horeb, Wisconsin:- Snow accumulation: Wisconsin winters bring substantial snowfall that can completely block solar panels for extended periods
- Ice formation: Freezing rain and ice storms can create persistent coverings on panel surfaces
- Overcast conditions: The region experiences frequent cloudy weather, particularly during winter months
- Tree coverage: Wisconsin's heavily forested landscape can create shading issues
Preventative Installation Measures
Installing solar panels with a steeper tilt angle can help snow and ice slide off more readily, though this must be balanced against the optimal 37-degree angle for maximum energy production. Some installers recommend angles of 40-45 degrees in heavy snow areas as a compromise. Proper site selection becomes crucial in Wisconsin's tree-rich environment. Conducting thorough shade analysis throughout different seasons helps identify locations that remain unobstructed year-round. Sometimes this means placing arrays further from buildings or removing select trees. Panel mounting systems should be engineered for Wisconsin's snow loads, which can add significant weight to roof installations. Ground-mount systems often perform better in snowy climates since they're easier to clear and can be angled more steeply. Installing microinverters or power optimizers rather than traditional string inverters helps minimize production losses when partial shading occurs from snow, debris, or nearby objects. These systems allow each panel to operate independently rather than having the lowest-performing panel drag down the entire array's output.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 Mount Horeb
Seasonal solar PV output for Latitude: 43.0049, Longitude: -89.7395 (Mount Horeb, 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 37° South in Mount Horeb, United States
To maximize your solar PV system's energy output in Mount Horeb, United States (Lat/Long 43.0049, -89.7395) throughout the year, you should tilt your panels at an angle of 37° 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 Mount Horeb, 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 Mount Horeb, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 37° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 27° South in Summer | 47° South in Autumn | 56° South in Winter | 36° 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 Mount Horeb, 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 Mount Horeb, United States.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Mount Horeb, United States
Topographical Features of the Mount Horeb Region
Mount Horeb sits within the distinctive Driftless Area of southwestern Wisconsin, a region that escaped glaciation during the last ice age and consequently features a unique landscape characterized by rolling hills, deep valleys, and rugged terrain. The topography around Mount Horeb is dominated by steep-sided ridges and narrow valleys carved by ancient streams and rivers over millions of years. The elevation varies significantly across short distances, with hilltops reaching approximately 1,200 to 1,300 feet above sea level while valley floors drop to around 800 to 900 feet. The landscape is marked by numerous coulees - narrow valleys with steep sides that are characteristic of this unglaciated region. These geological features create a complex terrain with frequent elevation changes and varied slope orientations. The bedrock consists primarily of sedimentary layers including sandstone, limestone, and shale formations that have been carved into the present-day topography through millennia of erosion. Agricultural land use predominates in the flatter valley bottoms and gentler slopes, while steeper hillsides often remain forested or are used for pasture. The region's streams flow through winding valleys, eventually draining into the Wisconsin River system. The natural vegetation includes oak-hickory forests on the hillsides and prairie remnants in some areas, though much of the original landscape has been converted to agricultural use.Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Mount Horeb would be the relatively flat to gently sloping agricultural areas found in the broader valley floors and on the more gradual hillside slopes. These areas offer several advantages including easier construction access, reduced grading requirements, and lower development costs compared to steeper terrain. South-facing slopes with gradients between 10 and 30 degrees present particularly attractive opportunities for solar development, as these orientations naturally optimize panel positioning for maximum energy capture throughout the day and across seasons. The agricultural fields scattered throughout the wider valleys provide large contiguous areas that could accommodate utility-scale solar arrays while maintaining reasonable distances from residential areas. Areas north and northwest of Mount Horeb toward the Wisconsin River valley offer some of the most promising terrain, where the topography becomes somewhat less rugged and agricultural fields are more extensive. Similarly, the broader valley systems to the east and southeast contain flatter agricultural land that could support large solar installations with minimal site preparation. The key consideration for solar development in this region involves balancing optimal solar exposure with practical construction constraints. While the steepest ridges and narrow coulees present significant challenges for large-scale development, the numerous agricultural areas on moderate slopes and in wider valleys provide ample opportunities for solar installations that can work with the natural topography rather than requiring extensive modification of the landscape.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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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 1st of July 2025
Last Updated: Wednesday 6th of August 2025
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Compare this location to others worldwide for solar PV potential
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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.




