Saint George, Bermuda, located in the Northern Sub Tropics at coordinates 32.3778, -64.6782, presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variations that potential solar installers should carefully consider.

Seasonal Solar Performance

The solar energy output at this location varies considerably throughout the year. Summer represents the peak production period, generating 7.42 kWh per day per kW of installed solar capacity. This makes summer the most productive season for solar energy generation in Saint George. Spring offers the second-best performance with 5.91 kWh per day per kW, making it another strong period for solar production. Autumn sees a notable decline to 4.24 kWh per day per kW, while winter represents the lowest production period at just 3.13 kWh per day per kW of installed capacity. For optimal year-round energy production from a fixed panel installation at this location, solar panels should be tilted at 27 degrees facing South. This angle maximizes total annual solar output by accounting for the sun's varying position throughout the year and weighting the angles based on daily solar energy potential.

Environmental and Weather Challenges

Saint George's island location in the Atlantic Ocean presents several significant environmental factors that can impede solar energy production. The most prominent challenge is the high salt content in the air due to constant ocean exposure, which can cause corrosion of solar panel frames, mounting systems, and electrical connections over time. Hurricane and tropical storm activity represents another major concern for this region. These severe weather events can damage or destroy solar installations through high winds, flying debris, and flooding. The hurricane season typically runs from June through November, coinciding with some of the better solar production months. Frequent rainfall and high humidity levels common to subtropical island climates can also impact solar efficiency. While rain can help clean panels naturally, extended periods of cloud cover and moisture can reduce overall energy output and potentially cause electrical issues if systems aren't properly sealed.

Preventative Installation Measures

To combat salt air corrosion, solar installations in Saint George should utilize marine-grade aluminum frames and stainless steel mounting hardware specifically designed for coastal environments. All electrical connections should be properly sealed with marine-grade sealants and housed in corrosion-resistant enclosures. For hurricane protection, solar panels should be installed with reinforced mounting systems that exceed standard wind load requirements. Consider using mounting systems rated for wind speeds of at least 150 mph. Panels should be installed with minimal gaps between units to reduce wind uplift, and ground-mounted systems should use deep concrete foundations. Regular maintenance becomes crucial in this environment. Monthly cleaning of panels to remove salt buildup and quarterly inspections of all mounting hardware and electrical connections will help maintain optimal performance. Installing monitoring systems can help quickly identify any performance issues caused by weather damage or corrosion. Proper drainage around ground-mounted systems and elevated mounting for rooftop installations can help prevent flood damage during severe weather events. Consider installing surge protection devices to guard against electrical damage from lightning strikes, which are common during tropical storms.

Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° latitude.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 5 locations across Bermuda. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Bermuda by location

Solar output per kW of installed solar PV by season in Saint George

Seasonal solar PV output for Latitude: 32.3778, Longitude: -64.6782 (Saint George, Bermuda), 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 27° South in Saint George, Bermuda

To maximize your solar PV system's energy output in Saint George, Bermuda (Lat/Long 32.3778, -64.6782) throughout the year, you should tilt your panels at an angle of 27° 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 Saint George, Bermuda

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 Saint George, Bermuda. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 27° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
16° South in Summer	37° South in Autumn	47° South in Winter	25° 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 Saint George, Bermuda

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 Saint George, Bermuda.

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 Saint George, Bermuda

Topography of Saint George, Bermuda

Saint George, located at the northeastern tip of Bermuda, sits on relatively flat terrain that characterizes much of this Atlantic island nation. The town is positioned on Saint George's Island, which forms part of Bermuda's distinctive hook-shaped archipelago. The topography here is notably gentle, with elevations rarely exceeding 50 feet above sea level throughout the immediate area. The landscape around Saint George consists of low-lying limestone formations that have been shaped by centuries of wind and wave action. These coral limestone foundations create a series of gentle undulations rather than steep hills or dramatic elevation changes. The terrain is punctuated by numerous small bays, inlets, and harbors that give the coastline its characteristic irregular appearance. Moving inland from the historic town center, the topography remains consistently mild with gradual rises and falls. The highest points in the vicinity reach modest elevations of around 40 to 60 feet, providing subtle variations in the landscape without creating significant obstacles for development or infrastructure projects. The soil composition consists primarily of sandy limestone with pockets of fertile earth that support the island's distinctive cedar and palmetto vegetation.

Optimal Areas for Large-Scale Solar Development

The relatively flat topography around Saint George presents several advantages for large-scale solar photovoltaic installations. The most promising locations would be the open areas southwest of the town center, where the land remains level and experiences minimal shading from existing vegetation or structures. These areas offer consistent southern exposure across broad expanses of land. The former military installations and airfield areas near Saint George provide particularly suitable terrain for solar development. These locations feature already-cleared land with minimal topographical obstacles, reducing the need for extensive site preparation. The flat, open character of these areas allows for optimal panel positioning and spacing while minimizing the impact of shadows cast by nearby features. Coastal areas to the south and southeast of Saint George also present excellent opportunities, though careful consideration must be given to salt spray exposure and hurricane-force wind resistance. The consistent elevation and lack of significant topographical barriers in these locations make them ideal for large-scale installations that require uniform panel arrays across substantial acreage. The gentle limestone terrain throughout the region provides stable foundation conditions for mounting systems, while the absence of steep slopes eliminates concerns about erosion or structural stability that might affect solar installations in more mountainous regions. The open character of much of the surrounding landscape also facilitates access for construction equipment and ongoing maintenance operations.

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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.