New Berlin, Wisconsin, United States presents a moderately favorable location for year-round solar photovoltaic energy generation, though with significant seasonal variations typical of its Northern Temperate Zone climate.

Seasonal Solar Performance

The solar energy output at this location shows dramatic seasonal swings. Summer delivers the strongest performance at 6.28 kWh per day per kW of installed solar capacity, making it the prime season for solar generation. Spring follows as the second-best period with 5.27 kWh per day per kW, offering excellent energy production as daylight hours increase and temperatures remain moderate. Autumn sees a notable decline to 3.29 kWh per day per kW as the sun angle decreases and weather patterns shift. Winter presents the most challenging conditions with only 2.25 kWh per day per kW, representing roughly one-third of summer production levels. For maximum year-round energy capture, solar panels at this location should be installed at a fixed tilt angle of 37 degrees facing south. This angle optimizes total annual production by balancing the sun's varying seasonal positions throughout the year.

Local Factors Affecting Solar Production

Several environmental and weather factors in New Berlin can significantly impact solar energy generation:

• Snow accumulation: Wisconsin's heavy winter snowfall can completely block solar panels, eliminating energy production until snow melts or is removed
• Ice formation: Freezing rain and ice storms can create thick ice layers on panels, severely reducing light transmission
• Frequent cloud cover: The region experiences substantial cloudy periods, particularly during winter months, which directly reduces solar irradiance
• Atmospheric moisture: High humidity and fog conditions can scatter and absorb sunlight before it reaches the panels

Preventative Installation Measures

Several strategies can help maximize solar production despite these challenges. Installing panels at steeper angles (closer to the recommended 37 degrees) helps snow slide off more easily rather than accumulating. Ensuring adequate spacing between panel rows prevents shadows from nearby panels and allows better air circulation for natural snow melting. Selecting panels with smooth, dark surfaces and anti-reflective coatings can help with ice shedding and light absorption. Installing heating elements or snow removal systems may be cost-effective for larger installations, though this adds complexity and expense. Regular maintenance becomes crucial, including safe snow removal procedures and keeping panels clean of debris that could trap moisture. Proper electrical system design with microinverters or power optimizers can minimize the impact when individual panels are temporarily blocked by snow or ice. Despite these seasonal challenges, New Berlin's location still provides reasonable solar potential, particularly during the productive spring and summer months when energy demand for cooling typically peaks.

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 New Berlin

Seasonal solar PV output for Latitude: 42.9896, Longitude: -88.0876 (New Berlin, 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 New Berlin, United States

To maximize your solar PV system's energy output in New Berlin, United States (Lat/Long 42.9896, -88.0876) 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 New Berlin, 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 New Berlin, 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 New Berlin, 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 New Berlin, 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 New Berlin, United States

Topographical Features Around New Berlin

New Berlin, Wisconsin sits within the gently rolling landscape characteristic of southeastern Wisconsin's glacially-formed terrain. The area exhibits relatively modest elevation changes, with the land gradually rising and falling in broad, sweeping patterns created by ancient ice sheet movements. The topography consists primarily of low hills and shallow valleys, with elevations typically ranging from around 800 to 1,000 feet above sea level across the broader region. The immediate vicinity of New Berlin features a mix of agricultural fields, suburban developments, and scattered woodlands. The terrain slopes gently toward the southeast, following the natural drainage patterns that feed into the Rock River watershed system. Small creeks and seasonal waterways have carved subtle valleys through the landscape, creating a series of low ridges and gentle depressions that give the area its characteristic undulating appearance.

Glacial Influence on Local Geography

The topography reflects Wisconsin's glacial history, with features typical of areas shaped by continental ice sheets. Drumlins - elongated hills formed beneath moving glaciers - appear scattered throughout the broader region, though they are generally low and rounded rather than steep or dramatic. The soil composition varies from sandy deposits in some areas to heavier clay soils in others, reflecting the mixed glacial till left behind as the ice retreated. Wetland areas and small lakes dot the landscape, occupying depressions created by glacial activity. These features, while adding ecological diversity to the region, create a patchwork of developable and protected lands that influences where large-scale projects might be situated.

Optimal Areas for Solar Development

The most suitable locations for large-scale solar photovoltaic installations would be the gently sloping agricultural fields that extend southwest and southeast of New Berlin. These areas offer several advantages including relatively flat to gently rolling terrain that minimizes grading requirements, large contiguous parcels of land currently in agricultural use, and southern-facing slopes that naturally optimize solar panel orientation. The farmland areas toward Mukwonago and East Troy present particularly favorable conditions, with their broad, open fields and minimal tree coverage. These locations benefit from the area's agricultural zoning, which often permits utility-scale renewable energy development, and their distance from dense residential areas reduces potential conflicts with existing development. Areas to the north and northeast of New Berlin, while topographically suitable, tend to have more fragmented land ownership patterns due to suburban sprawl and commercial development. The terrain south of the community, toward the Kettle Moraine region, begins to show more pronounced topographical variation that could complicate large-scale solar installations.

Infrastructure and Access Considerations

The road network around New Berlin provides good access to potential solar development sites, with several major highways and county roads crossing the area. The relatively flat terrain means that existing agricultural roads could often be upgraded to handle construction and maintenance traffic without extensive modification. The proximity to Milwaukee's electrical grid infrastructure presents advantages for connecting large solar installations to transmission systems. The area's location within an established utility service territory, combined with the existing network of power lines serving the agricultural and suburban areas, creates favorable conditions for grid interconnection.

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.