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Flag of United StatesSolar PV Analysis of Rangeley, United States

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

Solar Energy in Rangeley, Maine: Year-Round Potential

Rangeley, Maine, located in the Northern Temperate Zone, presents varying potential for solar PV energy generation throughout the year. This mountainous location experiences significant seasonal fluctuations in solar productivity that potential solar adopters should understand. The solar output in Rangeley follows a predictable seasonal pattern, with summer being the most productive season. During summer months, each kilowatt of installed solar capacity generates approximately 5.62 kWh per day. Spring follows closely with 5.12 kWh per day per installed kilowatt. These two seasons represent the prime solar harvesting periods in Rangeley. Production drops considerably during autumn, with output falling to 2.99 kWh per day per kilowatt of installed capacity. Winter represents the lowest production period, with just 1.78 kWh per day per kilowatt. This winter reduction is significant, with production levels less than one-third of summer values. For those installing fixed solar panels in Rangeley, the ideal tilt angle to maximize year-round energy production is 39 degrees facing South. This carefully calculated angle optimizes annual energy capture by accounting for Rangeley's specific latitude and seasonal solar patterns.

Environmental Challenges for Solar in Rangeley

Several significant environmental factors can impede solar production in Rangeley:
  • Heavy snowfall: Rangeley receives substantial winter snow accumulation that can cover panels and block sunlight during the already low-production winter months
  • Frequent cloud cover: The region experiences many overcast days, particularly in winter
  • Tree coverage: Rangeley's forested landscape may create shading issues
  • Dust and pollen: Seasonal pollen and dust accumulation can reduce panel efficiency
To mitigate these challenges, solar installations in Rangeley should incorporate steeper panel angles (beyond the optimal 39 degrees if winter production is prioritized) to promote snow shedding. Snow removal systems or regular manual clearing may be necessary. Tree management around the installation area is crucial to minimize shading. Additionally, installing panels with high-quality anti-soiling coatings and implementing a regular cleaning schedule will help maintain efficiency throughout the year. Despite these challenges, Rangeley's strong spring and summer production can make solar viable, especially when paired with appropriate energy storage solutions to balance the significant seasonal production differences.

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 Rangeley

Seasonal solar PV output for Latitude: 44.9664, Longitude: -70.6428 (Rangeley, 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 5.62kWh/day in Summer.
Autumn
Average 2.99kWh/day in Autumn.
Winter
Average 1.78kWh/day in Winter.
Spring
Average 5.12kWh/day in Spring.

 

Ideally tilt fixed solar panels 39° South in Rangeley, United States

To maximize your solar PV system's energy output in Rangeley, United States (Lat/Long 44.9664, -70.6428) 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.

The sun
At Latitude: 44.9664, Longitude: -70.6428, the ideal angle to tilt panels is 39° South

Seasonally adjusted solar panel tilt angles for Rangeley, 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 Rangeley, 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

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Rangeley, United States as follows: In Summer, set the angle of your panels to 29° facing South. In Autumn, tilt panels to 49° facing South for maximum generation. During Winter, adjust your solar panels to a 59° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 38° angle facing South to capture the most solar energy in Rangeley, 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 Rangeley, 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 Rangeley, 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 Rangeley, United States

Rangeley, located in Maine, United States, sits within a dramatic landscape characterized by rolling mountains, numerous lakes, and dense forests typical of the western Maine highlands. The topography surrounding Rangeley is predominantly mountainous, with elevations ranging significantly throughout the region. The town itself rests at approximately 1,700 feet above sea level, nestled between several significant peaks of the Appalachian Mountain chain. The area features the stunning Rangeley Lake as its centerpiece, with several other water bodies nearby including Mooselookmeguntic Lake, Richardson Lake, and Umbagog Lake forming part of the Rangeley Lakes chain. These lakes occupy glacially carved basins, creating a landscape of water-filled valleys surrounded by forested mountains. The terrain is generally rugged, with steep slopes in many areas.

Mountain Features

The mountains surrounding Rangeley are part of the northern Appalachian range, with several peaks exceeding 3,000 feet. Saddleback Mountain stands prominently to the east at over 4,000 feet, while the Longfellow Mountains stretch across the broader region. These mountains create significant elevation changes throughout the area, with valleys, ravines, and ridgelines forming a complex topographical pattern. The mountainous terrain means many slopes face various directions, creating a mix of north, south, east, and west-facing aspects. This variation in slope orientation affects sun exposure throughout the day and seasons.

Forest Cover

Dense forest covers much of the landscape, predominantly consisting of northern hardwoods and spruce-fir forests. These forests blanket the mountain slopes, with occasional clearings and meadows. The significant forest cover is an important consideration for any land use planning in the region.

Potential Areas for Solar PV Development

For large-scale solar photovoltaic (PV) installations, several factors related to topography must be considered. The most suitable areas would generally be: South-facing slopes and plateaus receive more direct sunlight throughout the day. Several of the gentler south-facing hillsides south of Rangeley Lake would potentially offer good solar exposure, particularly those with less forest cover. The relatively flat areas around the outskirts of Rangeley proper, where land has already been cleared for agriculture or other development, present opportunities for solar installations without extensive tree removal or grading. Some of the elevated plateaus in the region, particularly those south of the town center toward Phillips and west toward the New Hampshire border, offer reasonable terrain for solar development where slopes are not prohibitively steep. The areas between Route 4 and Route 16, where the topography flattens somewhat compared to the surrounding mountains, could potentially accommodate larger installations, though selective sites would need to be identified.

Topographical Challenges

The mountainous nature of the region does present challenges for large-scale solar development. The steep slopes that characterize much of the area are generally unsuitable for large solar arrays due to installation difficulties and potential environmental impacts from necessary grading. Winter snow accumulation, which can be significant at this elevation and latitude, must also be factored into any solar installation planning. Areas with moderate slopes may actually benefit from snow shedding compared to completely flat terrain. The numerous lakes, streams, and wetlands throughout the region create natural boundaries and environmentally sensitive areas that would need to be avoided in solar development planning. The best compromise would likely involve moderately sloped, south-facing areas that have already experienced some clearing, particularly in the somewhat lower elevation areas south and southwest of Rangeley proper, where the mountains begin to give way to slightly gentler terrain.

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 Rangeley, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 29th of May 2025
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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