Hampden, Maine, located in the Northern Temperate Zone, offers a varied potential for solar energy generation throughout the year. The location's solar production capabilities fluctuate significantly across seasons, presenting both opportunities and challenges for those considering solar PV installations.
Seasonal Solar Production
Summer stands out as the most productive season, with an impressive 5.82 kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind, generating 5.42 kWh daily. These warmer months provide ideal conditions for solar energy harvesting, with longer daylight hours and more direct sunlight. However, the colder months see a substantial decrease in solar output. Autumn produces 3.20 kWh per day, while winter drops to a mere 2.02 kWh daily. This significant seasonal variation highlights the importance of careful planning and potentially supplementary energy sources during the less productive months.Optimal Panel Positioning
For those opting for a fixed panel installation in Hampden, the ideal tilt angle to maximize year-round solar production is 39 degrees facing south. This angle takes into account the location's latitude and the Earth's elliptical orbit, ensuring the panels capture the most sunlight possible throughout the year.Environmental Considerations
While Hampden's location is generally favorable for solar energy, there are some environmental factors to consider: 1. Snow accumulation: Maine's winters can bring heavy snowfall, potentially covering solar panels and reducing their efficiency. Installing panels at the optimal angle can help snow slide off more easily, and regular maintenance may be necessary during winter months. 2. Tree cover: The region's dense forests could cast shadows on solar installations, particularly in residential areas. Careful site selection and tree trimming may be required to maximize sunlight exposure. To mitigate these challenges, consider using snow-shedding panel designs, implementing a regular cleaning schedule, and conducting a thorough shade analysis before installation. Additionally, exploring options like ground-mounted systems or elevated roof installations can help overcome some of these obstacles. In conclusion, while Hampden, Maine experiences significant seasonal variations in solar production, proper planning and installation techniques can still make solar PV a viable energy option for this location. The summer and spring months offer excellent generation potential, which can help offset the reduced output during autumn and winter.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 Hampden
Seasonal solar PV output for Latitude: 44.7375, Longitude: -68.8782 (Hampden, 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 Hampden, United States
To maximize your solar PV system's energy output in Hampden, United States (Lat/Long 44.7375, -68.8782) 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 Hampden, 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 Hampden, 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 |
|---|---|---|---|
| 28° South in Summer | 49° South in Autumn | 59° South in Winter | 37° 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 Hampden, 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 Hampden, 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 Hampden, United States
The area around Hampden, United States, located at latitude 44.7375 and longitude -68.8782, is characterized by a diverse and gently rolling topography typical of central Maine. This region is part of the New England Upland physiographic province, which features a mix of low hills, shallow valleys, and numerous small rivers and streams.
The landscape surrounding Hampden is primarily composed of glacial deposits left behind by the retreat of ice sheets during the last ice age. This has resulted in a terrain that includes drumlins (elongated hills formed by glacial ice movement), eskers (long, winding ridges of gravel and sand), and kettle ponds (depressions formed by melting ice blocks).
The Penobscot River, a major waterway in the region, flows near Hampden, creating a broad river valley with some flatter areas along its banks. As you move away from the river, the terrain becomes more undulating, with gentle slopes and occasional steeper hillsides.
Regarding areas nearby that would be most suited to large-scale solar PV (photovoltaic) installations, several factors should be considered:
1. Open, relatively flat land: The most suitable areas for solar farms would be those with minimal slope and few obstructions. Some of the more level agricultural fields or former farmlands in the region could be potential candidates.
2. South-facing slopes: Gentle south-facing slopes can be ideal for solar installations as they receive more direct sunlight throughout the day. Some of the hillsides in the area may offer this advantage.
3. Areas with less tree cover: While much of the region is forested, there are cleared areas that could be more suitable for solar installations. These might include abandoned industrial sites, large parking lots, or areas where forests have been previously cleared.
4. Proximity to existing infrastructure: Areas close to power lines and substations would be more cost-effective for connecting large-scale solar installations to the grid. Locations near major roads or highways might also be advantageous for construction and maintenance access.
5. Areas with lower ecological sensitivity: To minimize environmental impact, locations that are not prime wildlife habitats or ecologically sensitive areas would be preferable.
While specific site selection would require detailed surveys and environmental assessments, the rolling terrain around Hampden does offer potential for solar PV development, particularly in areas where human activity has already altered the natural landscape.
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: Monday 12th of August 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.




