Chesterfield, Missouri, located in the Northern Temperate Zone at coordinates 38.6313, -90.6141, presents a moderately favorable location for solar PV energy generation throughout the year. The seasonal variations in solar output provide insights into the potential for solar energy production in this area.

Seasonal Solar Performance

Summer stands out as the most productive season for solar energy in Chesterfield, with an average daily output of 6.51 kWh per kW of installed solar capacity. This high performance is due to longer daylight hours and more direct sunlight during the summer months. Spring follows as the second-most productive season, generating an average of 5.33 kWh per day per kW installed. The increasing daylight hours and generally clearer skies contribute to this strong performance. Autumn sees a decrease in solar output, with an average of 4.01 kWh per day per kW installed. This reduction is primarily due to shorter days and the sun's lower position in the sky. Winter experiences the lowest solar output, with an average of 2.40 kWh per day per kW installed. The shorter days, lower sun angle, and potentially increased cloud cover contribute to this reduced performance.

Optimal Panel Installation

For fixed panel installations in Chesterfield, the ideal tilt angle to maximize year-round solar production is 34 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the seasonal variations in the sun's position.

Environmental and Weather Considerations

While Chesterfield's location is generally suitable for solar energy production, there are some environmental and weather factors that could impact solar panel efficiency: 1. Snow accumulation in winter can temporarily reduce solar output. Installing panels at the optimal angle helps shed snow more easily. 2. Occasional severe weather, including thunderstorms and tornadoes, may pose a risk to solar installations. Robust mounting systems and regular maintenance can mitigate these risks. 3. Humidity levels in the region may lead to slight reductions in panel efficiency, particularly during summer months. To address these factors, consider using high-quality, weather-resistant panels and mounting systems. Regular cleaning and maintenance of the panels can also help maintain optimal performance throughout the year. In conclusion, while Chesterfield experiences significant seasonal variations in solar output, it remains a viable location for solar PV energy generation. With proper installation and maintenance, solar panels can provide substantial energy production, particularly during the spring and summer months.

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 Chesterfield

Seasonal solar PV output for Latitude: 38.6313, Longitude: -90.6141 (Chesterfield, 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 34° South in Chesterfield, United States

To maximize your solar PV system's energy output in Chesterfield, United States (Lat/Long 38.6313, -90.6141) throughout the year, you should tilt your panels at an angle of 34° 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 Chesterfield, 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 Chesterfield, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 34° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
22° South in Summer	43° South in Autumn	53° South in Winter	32° 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 Chesterfield, 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 Chesterfield, 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 Chesterfield, United States

The topography around Chesterfield, Missouri (located at 38.6313°N, 90.6141°W) is characterized by gently rolling hills and shallow valleys. This area is part of the Ozark Plateau region, which transitions into the flatter Missouri River floodplain to the north. The landscape is a mix of suburban development, forested areas, and some remaining agricultural land.

Chesterfield itself sits in a valley formed by Bonhomme Creek, with slightly higher elevations to the north and south. The terrain gradually rises as you move west into St. Louis County, while it becomes flatter as you approach the Missouri River to the north. The area's elevation typically ranges from about 400 to 600 feet above sea level.

For large-scale solar PV installations, the most suitable areas nearby would likely be found to the west and southwest of Chesterfield. These locations offer several advantages:

1. They have more open, undeveloped land that could accommodate large solar arrays.
2. The gently sloping terrain provides good sun exposure without significant shading from hills or trees.
3. These areas are farther from the more densely populated parts of the St. Louis metropolitan area, potentially reducing conflicts with residential or commercial development.

Specific regions that might be well-suited for solar PV projects include:

• The rural areas west of Wildwood
• Open spaces near Eureka and Pacific
• Less developed regions southwest of Chesterfield, towards Washington, Missouri

It's important to note that while these areas may be topographically suitable, other factors such as land ownership, zoning regulations, proximity to electrical infrastructure, and environmental considerations would also need to be taken into account when planning any large-scale solar PV installation.

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.