Solar Energy Potential in Cranston, Rhode Island

Cranston, Rhode Island, in the United States, presents a moderate location for solar PV energy generation with significant seasonal variations. Located in the Northern Temperate Zone, this area experiences distinct seasons that directly impact solar energy production throughout the year. The solar energy output at this location follows a predictable seasonal pattern. During summer, solar panels generate their maximum output at 6.10kWh per day for each kilowatt installed. Spring follows as the second most productive season with 5.73kWh/day. Production drops considerably in autumn to 3.59kWh/day, while winter represents the lowest output period with just 2.09kWh/day per kilowatt installed.

Seasonal Considerations

The substantial difference between summer and winter production (nearly a threefold decrease) indicates that Cranston experiences significant seasonal variations in solar potential. This pattern is typical for locations in the Northern Temperate Zone, where the sun's path across the sky changes dramatically throughout the year. For residents and businesses in Cranston considering solar installations, the summer and spring months (approximately May through September) will provide the most substantial energy returns. During these periods, solar systems will likely produce excess energy that could potentially be fed back into the grid if net metering is available.

Optimal Panel Installation

For a fixed panel installation at this Cranston location, the ideal angle to tilt panels to maximize total year-round production is 36 degrees facing South. This specific angle has been calculated to optimize annual solar collection based on the location's latitude and seasonal sun paths.

Environmental and Weather Considerations

New England weather patterns present several challenges for solar production in Cranston. Snow accumulation during winter months can temporarily cover panels, reducing output during an already low-production season. Installing panels at the recommended 36-degree tilt helps snow slide off more easily than flatter installations would allow. Cranston's coastal proximity means occasional exposure to nor'easters and potential hurricane impacts, requiring sturdy mounting systems rated for high wind conditions. The area also experiences moderate tree coverage, so careful site assessment to avoid shading is essential, potentially including strategic tree trimming where appropriate. Humidity and fog, particularly in spring and fall mornings, can slightly reduce panel efficiency. Regular cleaning to remove pollen in spring and fallen leaves in autumn will help maintain optimal performance through these transitional seasons.

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 Cranston

Seasonal solar PV output for Latitude: 41.7689, Longitude: -71.4758 (Cranston, 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 Cranston, United States

To maximize your solar PV system's energy output in Cranston, United States (Lat/Long 41.7689, -71.4758) 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 Cranston, 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 Cranston, 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
25° South in Summer	46° South in Autumn	56° 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 Cranston, 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 Cranston, 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.

Topography for solar PV around Cranston, United States

The topography around Cranston, Rhode Island, is characterized by gentle rolling hills and lowlands typical of coastal New England. Located in the northeastern United States, Cranston sits within Providence County along the western shore of Narragansett Bay. The terrain generally slopes eastward toward the bay, with elevations ranging from near sea level along the coastline to modest hills reaching approximately 200-300 feet above sea level in the western portions of the city. The landscape was largely shaped by glacial activity during the last ice age, resulting in a mix of small drumlins, shallow valleys, and scattered wetland areas. Several small rivers and streams traverse the area, including the Pawtuxet River which forms part of Cranston's southern boundary. This river valley creates one of the more significant topographical features in the immediate vicinity.

Surrounding Terrain Features

To the west of Cranston, the terrain gradually becomes more undulating as it transitions toward the Rhode Island interior. These areas feature slightly higher elevations with more pronounced hills, though still modest by mountainous standards. The eastern portions of Cranston, conversely, flatten considerably as they approach Narragansett Bay, creating lowland coastal plains. Urban development has significantly altered the natural landscape throughout much of Cranston and neighboring Providence. The metropolitan area features extensive residential and commercial development, with the densest urbanization occurring in the northern and eastern sections near the bay.

Potential Areas for Solar PV Development

When considering large-scale solar photovoltaic (PV) installations near Cranston, several topographical factors become relevant. The most suitable areas for solar development would generally be found in the western and southwestern portions of the region, where: The gently rolling terrain provides adequate land area with minimal slope concerns. Ideal sites would feature south-facing slopes that naturally maximize solar exposure throughout the day. These areas typically receive less shadowing from surrounding terrain features. Former agricultural lands in western Cranston and neighboring communities like Johnston and Scituate present opportunities for solar development. These areas often combine favorable topography with existing land clearing, reducing development costs and environmental impacts. The relatively flat plateaus found throughout the region west of Interstate 295 would be particularly well-suited for large installations. These areas combine good solar exposure with sufficient land area to accommodate commercial-scale projects. Areas to generally avoid would include the immediate coastal zones, which face higher land costs and potential flooding concerns, as well as the more densely forested and steeply sloped sections found in patches throughout the western suburbs. The region's modest elevations mean that fog and coastal weather patterns can occasionally impact solar productivity, particularly in areas closest to Narragansett Bay. For this reason, installations slightly further inland, where the elevation rises above 100 feet, might benefit from clearer atmospheric conditions.

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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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.