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Flag of MauritiusSolar PV Analysis of Rose Belle, Mauritius

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Rose Belle, Mauritius (by season)

Rose Belle, Grand Port District, Mauritius, located at latitude -20.3937 and longitude 57.5942, offers a promising location for solar PV energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than significant temperature variations.

Seasonal Solar Production

The solar energy output at Rose Belle varies across the meteorological seasons. Summer sees the highest production at 7.81 kWh per day for each kilowatt of installed solar capacity. Spring follows closely with 7.20 kWh/day. Autumn and winter show lower but still substantial outputs at 5.44 kWh/day and 4.62 kWh/day, respectively. These figures indicate that Rose Belle is well-suited for year-round solar energy generation, with peak production occurring during the summer and spring months. The relatively high output even during autumn and winter suggests that solar PV systems can provide consistent energy throughout the year.

Optimal Panel Tilt

For fixed panel installations in Rose Belle, Grand Port District, the ideal tilt angle to maximize year-round solar production is 18 degrees North. This angle has been calculated to optimize the panels' exposure to sunlight throughout the year, taking into account the location's latitude and the Earth's elliptical orbit.

Environmental Considerations

While Rose Belle's tropical location is generally favorable for solar energy production, there are some environmental factors to consider: 1. Tropical cyclones: Mauritius is susceptible to cyclones, which can potentially damage solar installations. 2. Heavy rainfall: The wet season may lead to reduced solar output due to cloud cover. To mitigate these risks, solar installations should incorporate: - Robust mounting systems designed to withstand high winds - Proper drainage to prevent water accumulation on panels - Regular cleaning to remove dust and debris, especially after storms By implementing these preventative measures, solar energy systems in Rose Belle can maintain optimal performance and longevity, capitalizing on the location's abundant sunlight and favorable conditions for solar PV generation.

Note: The Tropics are located between 23.5° North and -23.5° South of the equator.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 41 locations across Mauritius. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Mauritius by location

Solar output per kW of installed solar PV by season in Rose Belle

Seasonal solar PV output for Latitude: -20.3937, Longitude: 57.5942 (Rose Belle, Mauritius), 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:

Summer
Average 7.81kWh/day in Summer.
Autumn
Average 5.44kWh/day in Autumn.
Winter
Average 4.62kWh/day in Winter.
Spring
Average 7.20kWh/day in Spring.

 

Ideally tilt fixed solar panels 18° North in Rose Belle, Mauritius

To maximize your solar PV system's energy output in Rose Belle, Mauritius (Lat/Long -20.3937, 57.5942) throughout the year, you should tilt your panels at an angle of 18° North 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.

The sun
At Latitude: -20.3937, Longitude: 57.5942, the ideal angle to tilt panels is 18° North

Seasonally adjusted solar panel tilt angles for Rose Belle, Mauritius

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 Rose Belle, Mauritius. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 18° North tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
4° North in Summer 26° North in Autumn 36° North in Winter 14° North in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Rose Belle, Mauritius as follows: In Summer, set the angle of your panels to 4° facing North. In Autumn, tilt panels to 26° facing North for maximum generation. During Winter, adjust your solar panels to a 36° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 14° angle facing North to capture the most solar energy in Rose Belle, Mauritius.

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 Rose Belle, Mauritius

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 Rose Belle, Mauritius.

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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Rose Belle, Mauritius

The topography around Rose Belle, Mauritius, is characterized by a mix of gently rolling hills and relatively flat areas. This region is part of the central plateau of Mauritius, which gradually rises from the coastal plains. The landscape is dotted with lush vegetation, including sugarcane fields and patches of native forest. The elevation in this area typically ranges from about 200 to 400 meters above sea level, providing a pleasant and varied terrain. To the east of Rose Belle, the land slopes down towards the coast, while to the west, it gradually rises towards the more mountainous interior of the island. The area is intersected by small rivers and streams, which have carved shallow valleys over time. This varied topography contributes to the region's scenic beauty and agricultural productivity.

Solar PV Potential

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The relatively flat or gently sloping areas to the east and southeast of Rose Belle present promising opportunities. These locations offer good exposure to sunlight throughout the day and have fewer obstructions from steep hills or dense forests. The agricultural lands, particularly those currently used for sugarcane cultivation, could be ideal for solar farms. These areas are already cleared and have good access to existing infrastructure. Additionally, the slightly elevated terrain of the central plateau provides an advantage in terms of reduced risk of flooding and potentially clearer skies compared to coastal regions. It's worth noting that any large-scale solar PV project would need to carefully balance land use with agricultural needs and environmental considerations. The areas immediately surrounding Rose Belle town might be less suitable due to urban development, but the rural outskirts to the east, southeast, and south could offer ample space for solar installations while maintaining a respectful distance from residential areas.

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Rose Belle, Mauritius
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 3rd of April 2025
Last Updated: Monday 21st of July 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.

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