The location of Marembo, Northern Province, Rwanda, situated at latitude -1.371 and longitude 29.7095, presents a highly favorable environment for solar PV energy generation throughout the year. This tropical location benefits from consistent sunlight and experiences wet and dry seasons rather than traditional four-season weather patterns.

Solar energy production at this site remains remarkably stable across all meteorological seasons, with only minor fluctuations. The daily electricity output per kilowatt of installed solar capacity ranges from 4.91 kWh in summer to 5.32 kWh in spring. Autumn and winter seasons show similarly high outputs of 5.27 kWh and 5.28 kWh, respectively.

Optimal Solar Generation Periods

While solar energy production is consistently high year-round, the spring months offer slightly better performance. However, the difference is minimal, making Marembo an excellent location for solar PV installations regardless of the time of year.

For fixed panel installations at this location, the ideal tilt angle to maximize total year-round production is 2 degrees North. This slight tilt helps optimize energy capture throughout the year, accounting for the Earth's elliptical orbit and the site's proximity to the equator.

Environmental and Weather Considerations

There are no significant environmental or weather-related factors that would substantially impede solar production at this location. The consistent sunlight and lack of extreme seasonal variations contribute to the site's suitability for solar energy generation.

However, as with any tropical location, occasional heavy rainfall during the wet season might temporarily reduce solar panel efficiency. To mitigate this, installers should ensure proper drainage systems are in place and panels are mounted at an angle that allows water to run off easily. Regular cleaning and maintenance of the panels will also help maintain optimal performance.

In conclusion, Marembo, Northern Province, Rwanda, offers nearly ideal conditions for year-round solar PV energy generation, with minimal seasonal variation and few environmental challenges to overcome.

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 6 locations across Rwanda. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Rwanda by location

Solar output per kW of installed solar PV by season in Marembo

Seasonal solar PV output for Latitude: -1.371, Longitude: 29.7095 (Marembo, Rwanda), 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 2° North in Marembo, Rwanda

To maximize your solar PV system's energy output in Marembo, Rwanda (Lat/Long -1.371, 29.7095) throughout the year, you should tilt your panels at an angle of 2° 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.

Seasonally adjusted solar panel tilt angles for Marembo, Rwanda

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 Marembo, Rwanda. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 2° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
14° South in Summer	8° North in Autumn	17° North in Winter	5° 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 Marembo, Rwanda

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 Marembo, Rwanda.

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 Marembo, Rwanda

The topography around Marembo, Rwanda, is characterized by a diverse and hilly landscape typical of the region. Located in the western part of the country, this area features a mix of rolling hills, steep slopes, and valleys. The terrain is part of the larger Congo-Nile Divide, a mountainous region that separates the Congo and Nile river basins. The elevation in and around Marembo varies significantly, with hills rising to heights of several hundred meters above sea level. These hills are often covered in lush vegetation, including forests and agricultural lands. The area experiences a tropical climate with two rainy seasons, which contributes to the verdant nature of the landscape. Valleys between the hills are home to numerous streams and small rivers that flow through the region, eventually feeding into larger water bodies. These waterways have carved out the terrain over time, creating a network of drainage systems that further define the topography.

Suitability for Large-Scale Solar PV

When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations would be relatively flat or gently sloping areas that receive ample sunlight throughout the year. These areas should also be easily accessible for construction and maintenance purposes. Some of the nearby regions that might be suitable for solar PV projects include: 1. Plateaus or hilltops with minimal tree cover: These elevated areas often receive more direct sunlight and have fewer obstructions that could cast shadows on solar panels. 2. Cleared agricultural lands: Some of the less productive agricultural areas in the vicinity could potentially be repurposed for solar energy production, provided they have the right orientation and exposure to sunlight. 3. Valleys with a north-south orientation: While valleys can sometimes be problematic due to shading from surrounding hills, those aligned north-south may receive sufficient sunlight throughout the day to be viable for solar PV installations. It's important to note that any large-scale solar project would require detailed site surveys and environmental impact assessments. The hilly nature of the region means that careful planning would be necessary to maximize energy production while minimizing environmental disruption and erosion risks. Additionally, proximity to existing power infrastructure and local communities that could benefit from the energy produced should be considered when selecting sites for solar PV projects in this area.

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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.