Vevay, Indiana, located in the Northern Temperate Zone at coordinates 38.7409, -85.0613, presents a varied landscape for solar energy generation throughout the year. This location experiences significant seasonal fluctuations in solar PV output, which impacts its overall suitability for year-round solar energy production.

Seasonal Solar Performance

The solar energy potential in Vevay varies considerably across seasons. Summer stands out as the most productive period, with an impressive daily output of 6.22 kWh per kW of installed solar capacity. Spring follows closely behind, generating 5.52 kWh/day. However, there's a notable decline in autumn, with 3.85 kWh/day, and a significant drop in winter, yielding only 2.15 kWh/day.

These figures indicate that Vevay is most ideal for solar energy production during the warmer months, particularly from late spring through early fall. The extended daylight hours and higher sun angles during this period contribute to the enhanced solar output.

Optimizing Solar Panel Installation

To maximize year-round solar energy production in Vevay, fixed solar panels should be tilted at a 33-degree angle facing south. This optimal angle has been calculated to capture the most sunlight throughout the year, considering the location's latitude and seasonal sun paths.

Environmental and Weather Considerations

While Vevay's location is generally favorable for solar energy, there are some environmental factors to consider:

• Snow accumulation in winter can temporarily reduce panel efficiency
• Occasional severe weather, including thunderstorms and tornadoes, may pose risks to solar installations

To mitigate these factors, consider installing panels at a steeper angle to promote snow sliding off, and use robust mounting systems designed to withstand high winds. Regular maintenance, including snow removal and panel cleaning, can help maintain optimal performance year-round.

In conclusion, while Vevay experiences significant seasonal variations in solar output, with proper installation and maintenance, it can still be a viable location for solar PV systems, particularly during the warmer 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 Vevay

Seasonal solar PV output for Latitude: 38.7409, Longitude: -85.0613 (Vevay, 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 33° South in Vevay, United States

To maximize your solar PV system's energy output in Vevay, United States (Lat/Long 38.7409, -85.0613) throughout the year, you should tilt your panels at an angle of 33° 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 Vevay, 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 Vevay, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
23° South in Summer	43° South in Autumn	54° South in Winter	31° 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 Vevay, 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 Vevay, 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 Vevay, United States

The topography around Vevay, Indiana, located at latitude 38.7409 and longitude -85.0613, is characterized by a mix of gently rolling hills and flat river valleys. This small city sits along the northern bank of the Ohio River, which forms a natural boundary between Indiana and Kentucky. The immediate area surrounding Vevay features low-lying floodplains adjacent to the river, gradually rising into more elevated terrain as you move inland. As you travel north and west from Vevay, the landscape becomes increasingly hilly, with numerous small creeks and streams carving shallow valleys through the countryside. These hills are part of the larger Ohio River Valley region, which is known for its varied terrain and scenic vistas. The area's elevation generally ranges from about 450 feet above sea level near the river to around 900 feet in the higher hills.

Potential for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, there are several factors to consider. The ideal locations would have relatively flat or gently sloping terrain, good sun exposure, and proximity to existing electrical infrastructure. Some of the most promising areas for solar PV development near Vevay would likely be found in the broader, flatter areas of the river valley, particularly to the east and west of the city. These areas often have large open fields that are currently used for agriculture, which could potentially be repurposed for solar farms. The relatively level terrain in these locations would minimize the need for extensive grading and site preparation. Additionally, some of the more gently sloping hillsides to the north of Vevay could also be suitable for solar PV installations. While these areas may require more careful site selection and design to account for the terrain, they could still offer good sun exposure and the potential for large-scale development. It's important to note that any large-scale solar project would need to carefully consider local zoning regulations, environmental impacts, and the capacity of the existing electrical grid to accommodate new power generation. Detailed site-specific studies would be necessary to determine the most viable locations for such developments in the Vevay area.

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.