Mullingar, Leinster, Ireland, situated at latitude 53.538 and longitude -7.3518, presents a mixed picture for solar PV energy generation. Located in the Northern Temperate Zone, this area experiences significant seasonal variations in solar output throughout the year.
Seasonal Solar Performance
Summer stands out as the most productive season for solar energy in Mullingar, Leinster, with an average daily output of 5.21 kWh per kW of installed solar capacity. Spring follows closely behind, generating 4.34 kWh per day. However, the performance drops considerably during autumn, with only 2.07 kWh per day, and reaches its lowest point in winter, producing a mere 0.96 kWh daily.
These figures highlight the stark contrast between the warmer and colder months, with summer producing more than five times the energy of winter. This disparity underscores the challenges of relying solely on solar power in this location year-round.
Optimal Panel Positioning
To maximize year-round solar energy production in Mullingar, Leinster, fixed solar panels should be tilted at a 45-degree angle facing south. This orientation helps capture the most sunlight throughout the year, considering the location's latitude and the sun's changing position across seasons.
Environmental and Weather Factors
Several factors can impede solar production in Mullingar:
- Cloud cover: Ireland is known for its frequent cloudy weather, which can significantly reduce solar panel efficiency.
- Rainfall: Mullingar experiences considerable rainfall throughout the year, which can affect panel performance and require more frequent cleaning.
- Short winter days: The location's high latitude results in very short days during winter, limiting the available sunlight for energy production.
Preventative Measures
To mitigate these challenges and enhance solar energy production, consider the following measures:
- Use high-efficiency panels designed for low-light conditions
- Install a solar tracking system to maximize exposure to available sunlight
- Implement regular cleaning and maintenance schedules to combat the effects of rainfall and potential debris
- Consider complementing the solar system with other renewable energy sources or energy storage solutions to compensate for low-production periods
While Mullingar's location presents some challenges for year-round solar energy production, careful planning and appropriate technology can still make solar PV a viable part of the local energy mix, particularly during the more productive spring and summer 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 104 locations across Ireland. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Ireland by location
Solar output per kW of installed solar PV by season in Mullingar
Seasonal solar PV output for Latitude: 53.538, Longitude: -7.3518 (Mullingar, Ireland), 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 45° South in Mullingar, Ireland
To maximize your solar PV system's energy output in Mullingar, Ireland (Lat/Long 53.538, -7.3518) throughout the year, you should tilt your panels at an angle of 45° 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 Mullingar, Ireland
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 Mullingar, Ireland. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 45° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 37° South in Summer | 57° South in Autumn | 67° South in Winter | 45° 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 Mullingar, Ireland
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 Mullingar, Ireland.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Mullingar, Ireland
The topography around Mullingar, Ireland, is characterized by gently rolling hills and low-lying plains typical of the Irish Midlands. This region, situated in County Westmeath, features a landscape that has been shaped by glacial activity during the last Ice Age. The area is dotted with numerous lakes, including Lough Owel to the north and Lough Ennell to the south of Mullingar. These water bodies contribute to the area's scenic beauty and provide important habitats for wildlife. The terrain surrounding Mullingar is predominantly composed of fertile grasslands and pastures, interspersed with patches of woodland and bogland. The elevation in this region is relatively modest, with most of the land lying between 80 and 120 meters above sea level. This gentle topography creates a sense of openness and expansiveness in the landscape, with long views across the countryside often possible from slightly elevated positions.
Suitability for Large-Scale Solar PV
When considering areas nearby Mullingar for large-scale solar PV installations, several factors come into play. The most suitable locations would be those that offer a combination of favorable topographical and environmental conditions. The gently sloping hillsides to the south and southeast of Mullingar could be particularly well-suited for solar PV installations. These areas often receive more direct sunlight throughout the day and are less likely to be shaded by natural features or man-made structures. The slight inclination of these hillsides can also help with the natural drainage of rainwater, which is beneficial for maintaining solar panels. Open farmland areas, especially those with a southerly aspect, would also be prime candidates for solar PV development. These locations typically have fewer obstructions that could cast shadows on the panels, maximizing their exposure to sunlight. Additionally, the relatively flat nature of much of the surrounding countryside makes it easier to install and maintain large arrays of solar panels. It's important to note that while the topography around Mullingar is generally favorable for solar PV, other factors such as grid connectivity, local planning regulations, and environmental considerations would also need to be taken into account when selecting specific sites for large-scale solar installations. Areas of particular ecological importance, such as wetlands or protected habitats, would likely be unsuitable for such developments. In conclusion, the gently undulating landscape around Mullingar offers several potentially suitable locations for large-scale solar PV projects. The most promising areas are likely to be found on south-facing slopes and open agricultural land, where the natural topography can be leveraged to maximize solar energy capture while minimizing environmental impact.Ireland solar PV Stats as a country
Ireland ranks 83rd in the world for cumulative solar PV capacity, with 136 total MW's of solar PV installed. Each year Ireland is generating 27 Watts from solar PV per capita (Ireland ranks 61st in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Ireland?
Yes, there are a number of incentives available for businesses wanting to install solar energy in Ireland. The Sustainable Energy Authority of Ireland (SEAI) offers grants and other financial support for businesses that wish to install solar PV systems. Additionally, the government has introduced a Feed-in Tariff scheme which pays businesses for any excess electricity they generate from their solar panels. Finally, businesses may be eligible for tax relief on the cost of installing a solar system through the Accelerated Capital Allowance Scheme.
Do you have more up to date information than this on incentives towards solar PV projects in Ireland? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 10th of December 2024
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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