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Flag of United StatesSolar PV Analysis of Heathsville, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Heathsville, United States (by season)

Heathsville, Virginia represents a moderately good location for year-round solar energy generation, though with significant seasonal variation typical of its Northern Temperate Zone climate. The location experiences strong solar production during warmer months but considerably reduced output during winter.

Seasonal Solar Performance

The solar energy output at this Virginia location shows distinct seasonal patterns. Summer provides the highest energy generation at 6.69 kWh per day per kilowatt of installed solar capacity, making it the peak production season. Spring follows as the second-best performing season with 6.06 kWh per day per kilowatt, offering nearly comparable output to summer months. Autumn sees a notable decline in solar production, dropping to 4.14 kWh per day per kilowatt of installed capacity. Winter presents the most challenging period for solar generation, with output falling to just 2.52 kWh per day per kilowatt - less than 40% of summer production levels. For optimal year-round energy capture at this location, solar panels should be installed at a fixed tilt angle of 33 degrees facing south. This angle maximizes total annual solar production by accounting for the sun's changing position throughout the year and the varying solar irradiance levels.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Heathsville area can impact solar energy generation. The region's humid subtropical climate brings frequent cloud cover and precipitation, particularly during summer thunderstorm seasons and winter weather systems moving up the Atlantic coast. These conditions can significantly reduce solar irradiance reaching the panels. The location's proximity to the Chesapeake Bay and Atlantic Ocean creates additional humidity and marine layer effects that can cause morning fog and haze, temporarily reducing solar production during early daylight hours. Salt air from marine environments can also accelerate corrosion of solar equipment if not properly protected.

Preventative Installation Measures

To maximize solar energy production despite these challenges, several installation strategies should be considered:
  • Use marine-grade aluminum mounting systems and stainless steel hardware to resist salt air corrosion
  • Install panels with anti-reflective coatings and self-cleaning glass surfaces to minimize the impact of humidity and salt deposits
  • Ensure adequate spacing between panels for proper ventilation and cooling, as high humidity can reduce panel efficiency
  • Position installations to avoid shading from trees that may grow more vigorously in the humid climate
  • Include monitoring systems to track performance and identify when cleaning or maintenance is needed due to salt or moisture buildup
Regular maintenance becomes particularly important in this coastal Virginia environment. Periodic cleaning of panels to remove salt residue, pollen, and other debris will help maintain optimal energy production throughout the year. The installation should also include proper drainage systems to prevent water accumulation around mounting hardware.

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 Heathsville

Seasonal solar PV output for Latitude: 37.9176, Longitude: -76.4722 (Heathsville, 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:

Summer
Average 6.69kWh/day in Summer.
Autumn
Average 4.14kWh/day in Autumn.
Winter
Average 2.52kWh/day in Winter.
Spring
Average 6.06kWh/day in Spring.

 

Ideally tilt fixed solar panels 33° South in Heathsville, United States

To maximize your solar PV system's energy output in Heathsville, United States (Lat/Long 37.9176, -76.4722) 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.

The sun
At Latitude: 37.9176, Longitude: -76.4722, the ideal angle to tilt panels is 33° South

Seasonally adjusted solar panel tilt angles for Heathsville, 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 Heathsville, 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
22° South in Summer 42° South in Autumn 53° South in Winter 31° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Heathsville, United States as follows: In Summer, set the angle of your panels to 22° facing South. In Autumn, tilt panels to 42° facing South for maximum generation. During Winter, adjust your solar panels to a 53° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 31° angle facing South to capture the most solar energy in Heathsville, United States.

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 Heathsville, 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 Heathsville, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Heathsville, United States

Topographical Features of Heathsville

Heathsville sits in Virginia's Northern Neck region, positioned between the Potomac River to the north and the Rappahannock River to the south. This area is characterized by relatively flat to gently rolling terrain typical of the Coastal Plain physiographic province. The elevation around Heathsville generally ranges from sea level along the waterways to modest heights of approximately 100 to 150 feet above sea level on the higher ground.

The landscape consists primarily of low-lying peninsular land with numerous tidal creeks, inlets, and marshy areas extending inland from both major rivers. The terrain slopes very gradually toward the water bodies, creating natural drainage patterns that have shaped the region's development over centuries. Much of the area features well-drained soils on the higher elevations, transitioning to poorly drained and sometimes seasonally wet soils in the lower-lying areas near waterways.

Agricultural fields and mixed forests dominate the land use patterns, with scattered residential development and small communities connected by rural roads. The relatively open nature of much of the agricultural land, combined with the gentle topography, creates expansive views across the countryside with minimal visual obstructions from steep hills or dense urban development.

Solar Development Suitability

The gently rolling agricultural areas southwest and west of Heathsville present excellent opportunities for large-scale solar installations. These locations offer several advantages including relatively flat terrain that minimizes grading costs, existing agricultural land that may be available for alternative use, and sufficient distance from sensitive waterfront areas to avoid environmental concerns related to tidal marshes and wetlands.

The higher elevation areas between Heathsville and the communities of Callao and Warsaw to the west would be particularly well-suited for solar development. These locations benefit from good drainage, stable soils, and minimal shading from surrounding terrain. The existing agricultural use of much of this land means that large contiguous parcels are potentially available, which is essential for utility-scale solar projects.

Areas closer to the Potomac and Rappahannock Rivers should generally be avoided for large solar installations due to environmental sensitivities, potential flooding concerns, and the presence of wetlands and critical wildlife habitat. The numerous tidal creeks and their associated buffer zones also create constraints on development in the lower-lying areas immediately surrounding Heathsville.

Transportation access via existing rural roads connecting to major highways would facilitate construction and maintenance of solar facilities in the recommended areas. The rural nature of the region also means that large-scale solar development would face fewer land use conflicts compared to more densely populated areas, though careful consideration of agricultural preservation and community impacts would still be important factors in site selection.

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

Article: Solar PV Analysis of Heathsville, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 10th of August 2025
Last Updated: Monday 11th of August 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.

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