Blairgowrie and Rattray, located in Scotland's Northern Temperate Zone, presents a mixed picture for year-round solar energy generation. The location experiences significant seasonal variation in solar output, which is typical for its northern latitude.

Seasonal Solar Performance

The solar energy production at this location varies dramatically throughout the year. Summer delivers the strongest performance at 4.95kWh per day per kW of installed solar capacity, making it an excellent time for solar generation. Spring also provides good returns with 3.85kWh per day per kW, offering nearly as much energy production as the peak summer months. However, the colder months present considerable challenges. Autumn drops to just 1.64kWh per day per kW, while winter plummets to a mere 0.70kWh per day per kW. This winter figure represents less than 15% of summer production, highlighting the location's seasonal limitations for consistent year-round solar energy.

Optimal Installation Setup

For maximum annual energy production at Blairgowrie and Rattray, fixed solar panels should be tilted at 48 degrees facing south. This angle has been calculated to optimize total year-round output by accounting for the sun's varying position throughout the seasons and the location's specific latitude.

Local Factors Affecting Solar Production

Several environmental and weather factors in this Scottish location can significantly impact solar panel performance:

• Frequent cloud cover and overcast conditions, particularly common in Scotland's maritime climate
• High rainfall throughout the year, which can reduce solar irradiance
• Snow accumulation during winter months that can block panels
• Strong winds that may affect panel positioning or cause debris accumulation
• Salt air from nearby coastal areas that can create buildup on panel surfaces

Preventative Measures for Better Performance

To maximize solar energy production despite these challenges, several installation strategies can help:

• Install panels with adequate tilt (the recommended 48 degrees) to promote natural cleaning from rainfall and prevent snow buildup
• Use high-quality mounting systems designed to withstand strong winds common in Scottish weather
• Position panels away from trees or buildings that might cause additional shading during already limited daylight periods
• Consider anti-reflective coatings that perform better in diffuse light conditions
• Plan for regular maintenance and cleaning schedules, particularly important given the potential for salt and debris accumulation
• Install monitoring systems to quickly identify performance issues during the more productive spring and summer months

While Blairgowrie and Rattray's location makes it less than ideal for consistent year-round solar generation, proper installation techniques and maintenance can help maximize the energy production during the more favorable spring and summer seasons.

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

Link: Solar PV potential in United Kingdom by location

Solar output per kW of installed solar PV by season in Blairgowrie And Rattray

Seasonal solar PV output for Latitude: 56.5858, Longitude: -3.3213 (Blairgowrie And Rattray, United Kingdom), 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 48° South in Blairgowrie And Rattray, United Kingdom

To maximize your solar PV system's energy output in Blairgowrie And Rattray, United Kingdom (Lat/Long 56.5858, -3.3213) throughout the year, you should tilt your panels at an angle of 48° 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 Blairgowrie And Rattray, United Kingdom

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 Blairgowrie And Rattray, United Kingdom. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 48° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
40° South in Summer	59° South in Autumn	70° South in Winter	49° 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 Blairgowrie And Rattray, United Kingdom

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 Blairgowrie And Rattray, United Kingdom.

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 Blairgowrie And Rattray, United Kingdom

Topography Around Blairgowrie and Rattray

The twin towns of Blairgowrie and Rattray sit in the heart of Perthshire, nestled within the fertile Strathmore valley. This broad, low-lying valley stretches northeast from Perth towards the coast, creating a natural corridor between the Highland mountains to the north and the gentler hills of Angus to the south. The immediate landscape around these communities is characterised by relatively flat to gently undulating terrain, with elevations typically ranging from 100 to 200 metres above sea level. The River Ericht flows directly through the centre of both towns, having carved a shallow valley through the surrounding countryside over millennia. This river valley creates the lowest point in the local topography, with the land rising gradually on either side towards more elevated ground. The terrain becomes progressively steeper as it approaches the foothills of the Grampian Mountains to the northwest, where peaks such as Ben Vrackie and the Cairngorms begin their dramatic ascent. To the south and east of Blairgowrie, the landscape consists primarily of agricultural land with gentle slopes and broad, open fields. This area forms part of the larger Strathmore plain, which extends across much of central Scotland. The topography here is ideal for farming, with well-drained soils and minimal steep gradients creating perfect conditions for both arable crops and livestock grazing.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Blairgowrie and Rattray would be found on the gently sloping agricultural land to the south and southeast of the towns. These areas benefit from predominantly south-facing slopes that would maximise solar exposure throughout the day, while the gradual gradients make construction and maintenance of solar arrays much more straightforward than on steeper terrain. The broad, open fields in the Strathmore valley provide excellent opportunities for solar development, as they offer large continuous areas of relatively flat land with minimal shading from trees or buildings. The agricultural nature of much of this land means it tends to be clear of significant obstacles, and the existing field boundaries often provide natural divisions that could accommodate solar installations without major landscape disruption. Areas to the east of Rattray, extending towards the Angus border, present particularly promising opportunities. This region combines the ideal south-facing orientation with gentle topography and good access to existing road networks for construction and maintenance purposes. The terrain here avoids the steeper slopes found closer to the Highland boundary fault to the north, while remaining sufficiently elevated to avoid any potential flooding issues from the River Ericht or its tributaries. The western approaches to Blairgowrie, while still relatively flat, begin to show more undulating characteristics as the land starts its gradual rise towards the Highlands. While some of these areas could still accommodate solar installations, they would generally be less optimal than the eastern and southern locations due to more varied topography and occasional steeper gradients that could complicate construction and reduce overall efficiency through shading effects.

United Kingdom solar PV Stats as a country

United Kingdom ranks 14th in the world for cumulative solar PV capacity, with 13,689 total MW's of solar PV installed. This means that 4.00% of United Kingdom's total energy as a country comes from solar PV (that's 20th in the world). Each year United Kingdom is generating 203 Watts from solar PV per capita (United Kingdom ranks 25th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in United Kingdom?

Yes, there are several incentives for businesses wanting to install solar energy in the United Kingdom. The UK government offers a Feed-in Tariff (FiT) scheme which pays businesses for every unit of electricity they generate from their solar panels. Additionally, businesses may be eligible for tax reliefs such as Enhanced Capital Allowances and Renewable Heat Incentives. Finally, some local authorities offer grants or other financial support to help businesses with the cost of installing solar energy systems.

Do you have more up to date information than this on incentives towards solar PV projects in United Kingdom? Please reach out to us and help us keep this information current. Thanks!

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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.