Hudson, Wisconsin, located in the Northern Temperate Zone, offers varying potential for solar energy generation throughout the year. This location experiences significant seasonal fluctuations in solar output, which impacts the overall efficiency of solar PV systems.
Seasonal Solar Production
Summer stands out as the most productive season, with an impressive 6.67 kWh per day for each kilowatt of installed solar capacity. Spring follows as the second-best season, generating 5.15 kWh/day. Autumn sees a considerable drop to 3.32 kWh/day, while winter experiences the lowest output at 2.27 kWh/day.
These figures highlight that Hudson's solar potential is most favorable from late spring through early fall. During this period, longer days and higher sun angles contribute to increased energy production. However, the substantial decrease in output during autumn and winter months presents challenges for year-round reliance on solar energy.
Optimizing Solar Panel Installation
To maximize year-round solar production in Hudson, fixed solar panels should be installed at a tilt angle of 39 degrees facing south. This optimal angle helps balance energy capture across seasons, particularly enhancing performance during the less productive months.
Environmental and Weather Considerations
Several factors can impact solar production in Hudson:
- Snow accumulation: Winter snowfall can cover panels, reducing efficiency. Regular panel cleaning or installing panels at a steeper angle can mitigate this issue.
- Cloud cover: The region experiences frequent cloud cover, especially in winter. Using high-efficiency panels can help maximize production even in diffuse light conditions.
- Temperature extremes: Very cold winters and hot summers can affect panel efficiency. Choosing temperature-resistant panels and ensuring proper ventilation can address this concern.
While these factors present challenges, they are not insurmountable. With proper planning and installation techniques, Hudson can still benefit significantly from solar energy, particularly during the more productive months of the year.
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 Hudson, Wisconsin
Seasonal solar PV output for Latitude: 44.9747, Longitude: -92.7569 (Hudson, Wisconsin, 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 Hudson, Wisconsin, United States
To maximize your solar PV system's energy output in Hudson, Wisconsin, United States (Lat/Long 44.9747, -92.7569) 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 Hudson, Wisconsin, 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 Hudson, Wisconsin, 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 |
|---|---|---|---|
| 28° South in Summer | 49° South in Autumn | 58° South in Winter | 38° 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 Hudson, Wisconsin, 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 Hudson, Wisconsin, 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 Hudson, Wisconsin, United States
The topography around Hudson, United States, located at latitude 44.9747 and longitude -92.7569, is characterized by gently rolling hills and river valleys. This area is part of the St. Croix River Valley, which forms the border between Wisconsin and Minnesota. The landscape is a mix of forested areas, agricultural fields, and suburban developments. The terrain in and around Hudson features a gradual elevation change, with some areas rising to form bluffs overlooking the St. Croix River. These bluffs can reach heights of up to 100 feet above the river level. The city itself is situated on a series of terraces that step down towards the river, providing scenic views of the surrounding landscape. To the east of Hudson, the land becomes more hilly and forested as it transitions into the Driftless Area, a region that was untouched by glaciers during the last ice age. This area is known for its more rugged terrain and deeper river valleys. To the west, the land flattens out somewhat as it approaches the Twin Cities metropolitan area.
Potential Areas 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 ideal locations would have relatively flat or gently sloping terrain, good sun exposure, and minimal shading from trees or structures. The agricultural areas to the south and east of Hudson could potentially be well-suited for solar PV development. These areas often feature large, open fields with minimal obstruction to sunlight. The gently rolling nature of the terrain in these regions would not pose significant challenges for installation and would allow for efficient arrangement of solar panels. Another potential area for solar PV development could be found in the more open spaces to the west of Hudson, as the land transitions towards the Twin Cities. These areas may have larger tracts of land available and potentially fewer zoning restrictions compared to more densely populated areas. It's important to note that while the topography in this region is generally favorable for solar PV, other factors such as local regulations, grid connectivity, and environmental considerations would need to be carefully evaluated before determining the most suitable locations for large-scale solar installations.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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 3rd of March 2025
Last Updated: Monday 21st of July 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.




