Beaver Dam, Wisconsin, located in the Northern Temperate Zone, presents a mixed scenario for year-round solar energy generation via photovoltaic (PV) systems. The city experiences significant seasonal variations in solar output, which impacts the overall efficiency of solar installations.
Seasonal Solar Performance
Solar energy production in Beaver Dam peaks during the summer months, with an impressive daily output of 6.35 kWh per kW of installed capacity. Spring follows as the second-most productive season, generating 5.21 kWh/day. However, autumn and winter see a substantial drop in solar output, with 3.20 kWh/day and 2.13 kWh/day respectively.
This stark contrast between seasons indicates that solar energy systems in Beaver Dam will be most effective from late spring through early fall. During these months, longer daylight hours and higher sun angles contribute to increased energy production.
Optimizing Solar Panel Installation
To maximize year-round solar energy production in Beaver Dam, fixed solar panels should be installed at a tilt angle of 37 degrees facing south. This optimal angle helps capture the most sunlight throughout the year, balancing the lower winter sun with the higher summer sun.
Environmental and Weather Factors
Several environmental and weather factors can impact solar production in Beaver Dam:
- Snow accumulation: Beaver Dam experiences significant snowfall in winter, which can cover solar panels and reduce efficiency.
- Cloud cover: The region has frequent cloudy days, particularly in autumn and winter, which can diminish solar output.
- Temperature extremes: Very cold winters and hot summers can affect panel efficiency.
Preventative Measures
To mitigate these challenges and ensure greater energy production, consider the following measures when installing solar PV systems in Beaver Dam:
- Use snow-shedding panel designs or install panels at a steeper angle to promote snow sliding off.
- Implement regular panel cleaning and maintenance, especially after snowfall.
- Choose high-efficiency panels that perform well in low-light conditions.
- Install a ground-mount system for easier access and maintenance during winter months.
- Consider adding a battery storage system to balance out seasonal variations in energy production.
While Beaver Dam's location presents some challenges for year-round solar energy production, proper system design and maintenance can still make solar PV a viable and beneficial energy option for the area.
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 Beaver Dam
Seasonal solar PV output for Latitude: 43.4609, Longitude: -88.8502 (Beaver Dam, 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 Beaver Dam, United States
To maximize your solar PV system's energy output in Beaver Dam, United States (Lat/Long 43.4609, -88.8502) 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 Beaver Dam, 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 Beaver Dam, 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 | 57° 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 Beaver Dam, 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 Beaver Dam, 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 Beaver Dam, United States
The topography around Beaver Dam, Wisconsin, in the United States is characterized by gently rolling hills and flat plains typical of the Midwest region. The area sits on what was once glaciated terrain, shaped by the movement of ice sheets during the last ice age. This has resulted in a landscape dotted with numerous small lakes, ponds, and wetlands, including Beaver Dam Lake to the west of the city. The surrounding countryside features a mix of agricultural land, wooded areas, and open fields. The elevation in the region is relatively consistent, with only modest changes in altitude across the area. This gentle terrain is part of the Eastern Ridges and Lowlands geographical region of Wisconsin, which is known for its fertile soils and productive farmland.
Potential for Large-Scale Solar PV
When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The relatively flat terrain in many parts of the region surrounding Beaver Dam is advantageous for solar farms, as it reduces the need for extensive land grading and simplifies construction. Open agricultural lands to the south and east of Beaver Dam could be particularly well-suited for solar PV development. These areas often have large, unobstructed spaces that receive ample sunlight throughout the day. Additionally, the existing road infrastructure in these rural areas could facilitate the transportation of materials and equipment necessary for solar farm construction and maintenance. However, it's important to note that while the topography is generally favorable, other factors such as local zoning regulations, proximity to electrical grid infrastructure, and environmental considerations would also play crucial roles in determining the most suitable locations for large-scale solar PV projects in the vicinity of Beaver Dam.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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 18th of April 2025
Last Updated: Tuesday 26th 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.
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.




