Dover-Foxcroft, Maine, located in the Northern Temperate Zone, presents a mixed picture for solar energy generation throughout the year. The location's potential for solar power production varies significantly across seasons, with summer and spring offering the most promising conditions.
Seasonal Solar Performance
Summer stands out as the peak season for solar energy production in Dover-Foxcroft, with an impressive output of 5.73 kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind, generating 5.28 kWh/day. These seasons provide ideal conditions for maximizing solar energy production, with longer daylight hours and more direct sunlight.
However, the picture changes dramatically during the colder months. Autumn sees a significant drop in production to 2.99 kWh/day, while winter performance plummets to a mere 1.86 kWh/day. This stark seasonal variation highlights the challenges of relying solely on solar power in this northern location.
Optimizing Solar Panel Installation
To maximize year-round solar energy production in Dover-Foxcroft, it's crucial to install fixed solar panels at the optimal angle. The ideal tilt for panels at this location is 39 degrees facing south. This angle is calculated to capture the most sunlight throughout the year, considering the Earth's elliptical orbit and the location's latitude.
Environmental and Weather Considerations
Several factors can impede solar production in Dover-Foxcroft:
- Snow accumulation during winter months can significantly reduce panel efficiency
- Frequent cloud cover, especially in winter and early spring, can limit solar exposure
To mitigate these challenges, consider installing panels at a steeper angle to encourage snow sliding off. Additionally, using high-efficiency panels and incorporating snow removal mechanisms can help maintain production during winter months. Regular cleaning and maintenance are also essential to ensure optimal performance year-round.
While Dover-Foxcroft's location presents some challenges for solar energy production, particularly in winter, the strong performance during summer and spring makes it a viable option for supplemental energy generation. With proper planning and installation techniques, solar PV systems can still provide significant benefits to residents of this Maine town.
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 Dover-Foxcroft
Seasonal solar PV output for Latitude: 45.1814, Longitude: -69.2036 (Dover-Foxcroft, 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 39° South in Dover-Foxcroft, United States
To maximize your solar PV system's energy output in Dover-Foxcroft, United States (Lat/Long 45.1814, -69.2036) throughout the year, you should tilt your panels at an angle of 39° 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 Dover-Foxcroft, 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 Dover-Foxcroft, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 39° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 29° South in Summer | 49° South in Autumn | 59° South in Winter | 38° 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 Dover-Foxcroft, 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 Dover-Foxcroft, 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 Dover-Foxcroft, United States
The topography around Dover-Foxcroft, located in central Maine, United States, is characterized by a diverse landscape of rolling hills, valleys, and forested areas. This region is part of the Appalachian foothills, which gives it a gently undulating terrain with occasional steeper slopes. The area is dotted with numerous small lakes, ponds, and streams, including the Piscataquis River that flows through the town. The elevation in and around Dover-Foxcroft varies, typically ranging from about 300 to 800 feet above sea level. This variation creates a picturesque setting with scenic vistas and a mix of open spaces and wooded areas. The landscape is predominantly rural, with a combination of farmland, forests, and small settlements interspersed throughout the region.
Potential Areas for Large-Scale Solar PV
When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. Ideal locations for solar farms typically include flat or gently sloping land with good sun exposure and minimal shading from trees or other obstructions. In the vicinity of Dover-Foxcroft, the most suitable areas for large-scale solar PV would likely be found in the open farmlands and cleared areas that are scattered throughout the region. These locations often provide the necessary space and sunlight exposure required for efficient solar energy production. Some of the gently sloping hillsides facing south or southwest could also be potential candidates, as they would receive optimal sunlight throughout the day. However, it's important to note that the abundance of forests in the area may limit the availability of large, contiguous plots of land suitable for solar farms. Any development would need to balance the benefits of solar energy production with the preservation of the region's natural beauty and ecosystems. Additionally, proximity to existing electrical infrastructure and access roads would be crucial factors in determining the most suitable locations for large-scale solar PV installations. Areas closer to power substations or transmission lines would be more favorable, as they would reduce the costs and complexity of connecting the solar farm to the grid. While the region around Dover-Foxcroft may present some challenges for large-scale solar PV due to its varied topography and forested nature, there are likely still opportunities for solar development on a smaller scale or in strategically chosen locations that meet the necessary criteria for efficient solar energy production.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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 10th of December 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.
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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.




