Solar PV Analysis of Danville, United States
Danville, Kentucky is a fairly good location for year-round energy generation using solar photovoltaic (PV) systems. However, the efficiency varies across different seasons.
In simple terms, if you install a 1 kW solar panel system in Danville, during summer you can expect it to generate about 6.45 kWh of electricity per day. This amount decreases to around 4.03 kWh/day in autumn and drops further down to approximately 2.27 kWh/day in winter. In spring the output increases again to roughly 5.61 kWh/day.
This means that summer and spring are the best times of year for generating solar energy at this location due to longer daylight hours and higher sun intensity compared with other seasons.
For optimal results from your solar PV system in Danville, it's recommended that your panels be tilted at an angle of about 33 degrees facing southward direction; this will maximize total yearly production from your installed panels by ensuring they receive maximum sunlight throughout the year.
However, there may be environmental or local factors that could affect solar production here such as frequent cloud cover or heavy snowfall during winter months which can block sunlight reaching the panels thereby reducing their efficiency significantly.
To overcome these challenges and ensure greater energy production:
1) Regular cleaning and maintenance of solar panels is crucial especially after heavy snowfall or dust storms.
2) Installing tracking mounts that follow the sun’s path across the sky can also help increase overall efficiency.
3) Use of anti-reflective coating on panels can reduce losses due to reflection.
4) Lastly, use high-quality durable materials for installation which can withstand harsh weather conditions effectively without affecting performance significantly.
Remember though: while these measures may improve productivity slightly they also add additional costs so consider them carefully before making any decisions based on cost-benefit analysis.
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 Danville
Seasonal solar PV output for Latitude: 37.6451, Longitude: -84.7703 (Danville, 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 Danville, United States
To maximize your solar PV system's energy output in Danville, United States (Lat/Long 37.6451, -84.7703) 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 Danville, 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 Danville, 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 |
|---|---|---|---|
| 21° South in Summer | 42° South in Autumn | 53° South in Winter | 30° 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 Danville, 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 Danville, United States.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Danville, United States
Danville, United States (Kentucky) is situated in the Bluegrass region, which is characterized by gently rolling plateaus. The area has a mix of flat and hilly terrain with ample open spaces that are suitable for large-scale solar PV installations.
The best areas for large-scale solar PV near Danville would be the flatter regions with less tree cover to maximize sun exposure. This could include agricultural lands or other open spaces. Areas like Perryville or Junction City to the west of Danville could potentially be suitable due to their relatively flat landscapes and access to sunlight.
However, it's important to consider several factors when determining suitability for large-scale solar projects such as local zoning laws, accessibility for installation and maintenance, proximity to power grids for easy transmission, environmental impact assessments etc. Therefore a detailed site-specific evaluation would be required before proceeding with any project.
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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 17th of April 2024
Last Updated: Monday 21st of July 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.
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.
