Gloucester, Massachusetts, located in the Northern Temperate Zone, presents a mixed picture for year-round solar energy generation. This coastal city experiences significant seasonal variations in solar output, which impacts the overall efficiency of solar PV systems throughout the year.

Seasonal Solar Output

The solar energy production in Gloucester varies considerably across seasons. Summer stands out as the most productive period, with an average daily output of 5.90 kWh per kW of installed solar capacity. Spring follows closely behind, generating 5.55 kWh/day. However, there's a sharp decline in production during autumn (3.42 kWh/day) and winter (1.97 kWh/day). These figures highlight that Gloucester's solar potential is heavily skewed towards the warmer months. The long, sunny days of summer and spring provide ideal conditions for solar energy generation. Conversely, the shorter days and lower sun angle during autumn and winter significantly reduce solar output.

Optimal Panel Installation

To maximize year-round solar production in Gloucester, fixed solar panels should be installed at a tilt angle of 37 degrees facing south. This angle is calculated to optimize the panels' exposure to sunlight throughout the year, taking into account the city's latitude and the Earth's elliptical orbit.

Environmental and Weather Factors

Several environmental and weather factors in Gloucester can impact solar energy production: 1. Coastal Weather: Gloucester's coastal location means it's prone to fog and overcast conditions, especially in spring and early summer. This can reduce solar output during these periods. 2. Snow Cover: Winter snowfall can temporarily cover solar panels, reducing their efficiency. However, the panels' tilt often allows snow to slide off naturally. 3. Salt Air Exposure: The proximity to the ocean exposes solar equipment to salt air, which can accelerate corrosion. To mitigate these factors, several preventative measures can be taken: - Use corrosion-resistant materials and protective coatings on solar equipment to combat salt air effects. - Install panels at the optimal angle to facilitate natural snow shedding. - Implement a regular cleaning schedule to remove any salt or debris buildup on the panels. - Consider using microinverters or power optimizers to minimize the impact of partial shading from fog or clouds. While Gloucester's location presents some challenges for year-round solar energy production, proper installation techniques and preventative measures can help maximize the system's output, especially during the highly productive summer and spring months.

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 Gloucester

Seasonal solar PV output for Latitude: 42.6219, Longitude: -70.6762 (Gloucester, 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 37° South in Gloucester, United States

To maximize your solar PV system's energy output in Gloucester, United States (Lat/Long 42.6219, -70.6762) throughout the year, you should tilt your panels at an angle of 37° 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 Gloucester, 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 Gloucester, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 37° 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	47° 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 Gloucester, 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 Gloucester, 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 Gloucester, United States

The area around Gloucester, Massachusetts, is characterized by a coastal landscape with a mix of gently rolling terrain and rocky outcrops. Gloucester is situated on Cape Ann, a rocky peninsula that juts out into the Atlantic Ocean. The topography of this region is largely shaped by its glacial history, resulting in a varied landscape with some notable features:

The coastline is rugged and irregular, with numerous small bays, coves, and inlets. Rocky shores and beaches are common, interspersed with occasional sandy stretches. Inland, the terrain is generally low-lying, with modest hills and valleys. The highest point in the immediate vicinity is Dogtown Commons, an area of glacial moraine that reaches about 180 feet above sea level.

Scattered throughout the region are glacial erratics – large boulders deposited by retreating glaciers thousands of years ago. These distinctive rock formations add character to the landscape and are often found perched atop hills or in otherwise unexpected locations.

The area also features a mix of forested areas, open fields, and wetlands. Small streams and ponds dot the landscape, adding to its diverse topography. As you move further inland from Gloucester, the terrain becomes slightly more elevated and hillier, though still relatively modest in height compared to other parts of Massachusetts.

Regarding areas nearby that would be most suited for large-scale solar PV installations, there are a few considerations to keep in mind:

The immediate vicinity of Gloucester may not be ideal for large-scale solar projects due to its coastal location, irregular terrain, and relatively dense development. However, moving slightly inland, there may be more suitable areas. The best locations would likely be found in the more open, flatter areas to the north and west of Gloucester.

Specifically, parts of Essex County that are further from the coast might offer better opportunities. Areas around Ipswich, Hamilton, and Wenham could potentially have suitable sites with more open land and gentler topography. These locations would likely have fewer obstructions to sunlight and more available space for large installations.

It's important to note that while topography is a crucial factor, other considerations such as land use regulations, proximity to electrical infrastructure, and environmental impact would also play significant roles in determining the feasibility of large-scale solar PV projects in this region.

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

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.