West Salem, Wisconsin presents a moderately favorable location for solar energy generation, though it faces typical challenges associated with its Northern Temperate Zone climate. Located at coordinates 43.9078°N, -91.0939°W, this area experiences significant seasonal variation in solar energy production that potential solar installers should carefully consider.

Seasonal Solar Performance

The solar energy output at West Salem varies dramatically throughout the year. Summer provides the strongest performance at 6.52 kWh per day per kW of installed solar capacity, making it an excellent time for solar generation. Spring also offers good production levels at 5.04 kWh per day per kW, representing solid energy output during this season. However, the location shows more modest performance during autumn at 3.36 kWh per day per kW, while winter presents the most challenging conditions with only 2.29 kWh per day per kW. This winter reduction represents about 65% less energy production compared to peak summer performance.

Optimal Panel Configuration

For maximum year-round solar energy production at West Salem, fixed solar panels should be tilted at 38 degrees facing south. This angle has been calculated to optimize total annual energy output by accounting for the sun's changing position throughout the year and the Earth's elliptical orbit around the sun.

Local Environmental Challenges

Several environmental and weather factors in West Salem can significantly impact solar energy production:

• Heavy snow accumulation during Wisconsin winters can cover panels and block sunlight
• Ice formation can create similar blockages and potentially damage equipment
• Frequent cloud cover during winter months reduces available sunlight
• Strong winds and severe weather events common to the upper Midwest

Preventative Installation Measures

To maximize solar energy production despite these challenges, several installation strategies can help:

• Install panels at the optimal 38-degree tilt to encourage natural snow sliding
• Use high-quality mounting systems designed for heavy snow loads
• Consider anti-reflective coatings that can help reduce ice buildup
• Ensure adequate spacing between panel rows to prevent shading from snow accumulation
• Install monitoring systems to track performance and identify when cleaning is needed

The steeper panel angle not only optimizes solar collection but also helps snow slide off more easily. Additionally, choosing panels and mounting hardware rated for Wisconsin's climate conditions, including temperature extremes and wind loads, will ensure long-term reliability and performance. Despite the seasonal challenges, West Salem's strong summer and spring solar production make it a viable location for solar energy, particularly when proper installation techniques address the local environmental factors.

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 West Salem

Seasonal solar PV output for Latitude: 43.9078, Longitude: -91.0939 (West Salem, 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 38° South in West Salem, United States

To maximize your solar PV system's energy output in West Salem, United States (Lat/Long 43.9078, -91.0939) throughout the year, you should tilt your panels at an angle of 38° 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 West Salem, 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 West Salem, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 38° 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	48° South in Autumn	57° South in Winter	37° 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 West Salem, 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 West Salem, 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 West Salem, United States

Topography Around West Salem

West Salem sits in the scenic Coulee Region of western Wisconsin, where the landscape is characterized by distinctive rolling hills, deep valleys, and dramatic bluffs carved by ancient glacial activity and river systems. The town is positioned along the Black River valley, with the Mississippi River corridor located just to the west. This region features a complex terrain of steep-sided coulees—narrow valleys with high ridges—that create a distinctive undulating topography throughout the area. The elevation changes significantly across short distances, with valley floors typically ranging from 650 to 700 feet above sea level, while the surrounding bluffs and ridgelines can reach elevations of 1,200 to 1,400 feet. The Black River flows through the immediate area, creating additional topographical variation as it meanders toward its confluence with the Mississippi River. These river systems have carved deep channels through the landscape, leaving behind fertile bottomlands surrounded by steep hillsides and plateau areas.

Agricultural and Forested Landscape

The region surrounding West Salem displays a mixed landscape of agricultural fields, woodlands, and developed areas. The flatter valley floors and gentler slopes support row crop agriculture, primarily corn and soybeans, along with dairy farming operations that take advantage of the area's pastureland. The steeper hillsides and bluff tops are often forested with oak, maple, and other hardwood species, creating a patchwork of open and wooded areas across the terrain. Many of the agricultural fields occupy the more level ground found on ridge tops and in the broader valley areas, where farming equipment can operate effectively despite the overall hilly nature of the region. These cultivated areas often extend across several acres of relatively consistent elevation before encountering the next coulee or ridge system.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations in the West Salem area would be the flatter agricultural fields found on the broader ridge tops and plateau areas scattered throughout the region. These elevated areas typically offer more consistent terrain with gentler slopes, making them ideal for solar panel installation and maintenance access. The ridge-top locations also tend to have fewer obstructions from surrounding topography that might create shading issues. The wider valley floors, particularly those oriented in an east-west direction, present another promising option for solar development. These areas often contain larger continuous parcels of relatively flat land that could accommodate substantial solar arrays. The Black River valley and similar broader valley systems in the region provide these types of suitable locations, especially where agricultural use has already cleared the land of forest cover. Areas to avoid for large-scale solar installations would include the steep-sided coulees and north-facing slopes that characterize much of the region's dramatic topography. The narrow valleys with high surrounding ridges would experience significant shading during portions of the day, reducing solar generation efficiency. Similarly, heavily forested bluff areas would require extensive clearing and present challenging terrain for installation and maintenance activities. The transition zones between valley floors and the beginning slopes of ridges might offer compromise locations where the terrain is manageable but still provides good solar exposure without the extreme elevation changes found on the steepest bluffs and coulees that define this distinctive Wisconsin 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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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.