Solar Energy Potential in Nantucket, Massachusetts

Nantucket, Massachusetts, located at 41.2727° N, 70.0971° W, offers a moderate potential for solar energy generation throughout the year. This island town in the Northern Temperate Zone experiences significant seasonal variations in solar output, which affects the overall efficiency of photovoltaic (PV) systems. The summer months provide the most favorable conditions for solar energy production, with an average daily output of 6.07 kWh per kW of installed solar capacity. Spring follows closely behind, generating 5.76 kWh/day. These seasons offer longer daylight hours and generally clearer skies, making them ideal for maximizing solar energy production. Autumn sees a noticeable decrease in solar output, with an average of 3.62 kWh/day. The most challenging period for solar generation is winter, producing only 2.11 kWh/day on average. This substantial drop is due to shorter days, lower sun angles, and increased cloud cover typical of New England winters.

Optimal Panel Installation

For fixed-panel installations in Nantucket, the ideal tilt angle to maximize year-round solar production is 36 degrees facing south. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the varying sun angles across seasons.

Environmental and Weather Considerations

Several factors can impact solar production in Nantucket: 1. Coastal weather: Nantucket's maritime climate can bring frequent fog and overcast conditions, particularly in spring and early summer. This may reduce solar output during these periods. 2. Salt air exposure: The island's proximity to the ocean exposes solar installations to salt spray, which can potentially corrode equipment over time. 3. Strong winds: Nantucket experiences high winds, especially during winter storms, which could pose a risk to solar panel installations. To mitigate these challenges, several preventative measures can be taken:

• Use corrosion-resistant materials and specialized coatings to protect against salt air damage.
• Ensure robust mounting systems capable of withstanding high winds.
• Implement regular cleaning and maintenance to remove salt deposits and maintain panel efficiency.
• Consider micro-inverter or power optimizer systems to minimize the impact of partial shading from fog or clouds.

Despite these challenges, Nantucket's solar potential remains significant, particularly from late spring through early fall. With proper planning and installation techniques, solar PV systems can provide a valuable source of renewable energy for the island community throughout the year.

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 Nantucket

Seasonal solar PV output for Latitude: 41.2727, Longitude: -70.0971 (Nantucket, 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 Nantucket, United States

To maximize your solar PV system's energy output in Nantucket, United States (Lat/Long 41.2727, -70.0971) 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 Nantucket, 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 Nantucket, 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	34° 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 Nantucket, 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 Nantucket, 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 Nantucket, United States

Nantucket, an island off the coast of Massachusetts, is characterized by a relatively flat and low-lying topography. The island's highest point, Sankaty Head, rises to a modest 111 feet above sea level. The landscape is dominated by gentle rolling hills, expansive sandy beaches, and coastal bluffs that gradually slope towards the Atlantic Ocean. The island's interior features a mix of open moors, grasslands, and scattered patches of scrub oak and pine forests. These areas are interspersed with numerous freshwater ponds and wetlands, which contribute to the island's diverse ecosystem. The coastline is marked by long stretches of sandy beaches, particularly along the southern and eastern shores, while the northern coast features some rocky areas and small harbors.

Potential for Large-Scale Solar PV

When considering areas near Nantucket for large-scale solar PV installations, the mainland regions of southeastern Massachusetts offer more suitable locations. The island itself has limited space and strict conservation regulations that may hinder extensive solar development. On the mainland, the areas around Cape Cod and southeastern Massachusetts present better opportunities for large-scale solar projects. These regions feature more expansive open spaces, former agricultural lands, and industrial areas that could be repurposed for solar farms. The relatively flat terrain and ample sunlight in this part of New England make it conducive to solar energy production. Specific areas that might be well-suited for large-scale solar PV installations include: 1. The towns of Barnstable, Bourne, and Falmouth on Cape Cod, which have already seen some solar development and have suitable land available. 2. The region around New Bedford and Fall River, where former industrial sites and open spaces could be utilized for solar farms. 3. Areas in Plymouth County, such as the towns of Carver and Wareham, which have a mix of open land and cranberry bogs that could potentially accommodate solar installations. It's important to note that any large-scale solar development would need to consider local zoning laws, environmental regulations, and grid connection capabilities. Additionally, the visual impact on the scenic landscapes of the region would need to be carefully managed to maintain the area's natural beauty and tourist appeal.

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.