Woonsocket, Rhode Island in the United States offers moderate potential for solar energy generation throughout the year, with significant seasonal variations in output. Located in the Northern Temperate Zone, this location experiences distinct seasons that directly impact solar production capabilities.
The solar energy potential in Woonsocket varies considerably across seasons. Summer yields the highest production at 5.72 kWh per day for each kilowatt of installed solar capacity. Spring follows closely behind with 5.37 kWh/day. Autumn sees a significant drop to 3.29 kWh/day, while winter production falls dramatically to just 1.95 kWh/day per kilowatt installed.
For those considering solar installation in this location, it's worth noting that the May through August period offers the most favorable conditions for solar energy generation. The substantial difference between summer and winter production (nearly three times more energy in summer) indicates that seasonal planning for energy needs is important for residents and businesses in Woonsocket.
Optimal Panel Installation
For fixed solar panel installations in Woonsocket, the ideal tilt angle to maximize year-round energy production is 36 degrees facing South. This angle has been calculated to optimize solar collection across all seasons, accounting for the location's specific latitude and seasonal solar patterns.
Environmental and Weather Considerations
Several environmental factors can potentially impact solar production in Woonsocket. New England's winter weather presents the most significant challenge, with snowfall potentially covering panels and reducing production during already low-yield months. Installing panels at the recommended 36-degree tilt helps snow slide off more easily than flatter installations would allow.
The region also experiences occasional nor'easter storms and hurricanes that can bring extended periods of cloud cover and precipitation. While these events are temporary, they do contribute to seasonal variability in solar output.
Tree coverage presents another consideration in this heavily forested region. Proper site assessment to minimize shading from surrounding trees, especially on the southern exposure, is essential for maximizing production. Strategic tree trimming or selecting installation locations with minimal southern obstructions can significantly improve energy yields.
Preventative measures for Woonsocket solar installations should include regular panel cleaning (especially after winter storms), using microinverters or power optimizers to minimize the impact of partial shading, and ensuring adequate structural support to withstand occasional high winds from coastal storms.
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 Woonsocket
Seasonal solar PV output for Latitude: 42.0029, Longitude: -71.5148 (Woonsocket, 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 36° South in Woonsocket, United States
To maximize your solar PV system's energy output in Woonsocket, United States (Lat/Long 42.0029, -71.5148) throughout the year, you should tilt your panels at an angle of 36° 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 Woonsocket, 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 Woonsocket, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 36° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 26° South in Summer | 46° South in Autumn | 57° South in Winter | 35° 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 Woonsocket, 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 Woonsocket, 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 Woonsocket, United States
Woonsocket, Rhode Island, is nestled in the northeastern United States, specifically in Providence County. The topography of Woonsocket and its surrounding areas is characterized by gentle rolling hills, shallow valleys, and modest elevation changes typical of the New England region. The city itself sits in a valley along the Blackstone River, which has historically played a significant role in the area's development, particularly during the industrial revolution when water power was harnessed for manufacturing. The terrain around Woonsocket features elevations generally ranging between 100 to 300 feet above sea level. The landscape has been shaped by glacial activity from the last ice age, resulting in scattered glacial deposits, small kettle ponds, and occasional rocky outcroppings. The Blackstone River Valley creates a natural corridor through the region, with the river itself flowing southeasterly toward Narragansett Bay.
Surrounding Landscape
Moving outward from Woonsocket, the terrain maintains its gently undulating character. To the west and northwest, the land gradually rises toward the more pronounced hills of central Massachusetts. The eastern portions of the region transition toward the coastal plain that eventually reaches the Atlantic Ocean. Throughout this area, mixed deciduous forests are interspersed with cleared agricultural lands and suburban development. The region experiences four distinct seasons, with vegetation patterns reflecting this seasonal rhythm. Deciduous trees dominate the natural landscape, creating dense canopy coverage during summer months in undeveloped areas. The built environment consists of a mix of urban, suburban, and rural landscapes, with Woonsocket representing one of the more densely developed areas in this part of Rhode Island.Potential Areas for Solar PV Development
When considering large-scale solar photovoltaic (PV) installations near Woonsocket, several factors related to topography become important. Ideal locations would feature relatively flat or gently sloping terrain with southern exposure, minimal shading, and good accessibility for construction and maintenance. The agricultural and former industrial lands to the south and southwest of Woonsocket present some of the best opportunities for large-scale solar development. These areas often feature cleared land with minimal tree coverage, reasonable slopes, and existing access to transportation infrastructure. Many of these locations were previously used for farming or manufacturing and may be suitable for repurposing as solar energy facilities. The slightly elevated plateaus found to the northwest of Woonsocket also offer potential for solar development. These areas typically receive good solar exposure due to their elevation and often have less intensive current land uses. However, developers would need to consider the increased wind exposure at these higher elevations when designing mounting systems. Former gravel pits and quarries in the region represent another opportunity for solar development. These disturbed lands often have limited other economic uses and can be effectively repurposed for renewable energy generation. Their typically open, unvegetated surfaces require minimal site preparation, though careful engineering is needed to address any unstable soils. Areas to avoid for solar development would include the steeper slopes found in parts of the Blackstone River Valley, wetland areas scattered throughout the region, and densely forested tracts where tree clearing would be extensive. Additionally, the more densely populated portions of Woonsocket itself would not be suitable for large-scale installations, though smaller commercial or community solar projects might be feasible on certain urban sites like large commercial rooftops or brownfields. The moderately complex topography of the Woonsocket region means that site-specific assessments are essential for any large-scale solar development. While the region doesn't have the vast, flat expanses found in some parts of the country, it does offer numerous viable locations where thoughtful project design can effectively harness solar energy.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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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 1st of May 2025
Last Updated: Friday 19th of September 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.




