Tabasalu, Harjumaa, Estonia, situated in the Northern Temperate Zone, presents a challenging location for year-round solar energy generation. The significant seasonal variations in solar output highlight the stark contrast between summer productivity and winter scarcity.

Seasonal Solar Performance

Summer stands out as the most productive season, with an impressive 5.91 kWh per day for each kilowatt of installed solar capacity. Spring follows as the second-best season, yielding 3.89 kWh daily. However, autumn experiences a substantial drop to 1.48 kWh per day, while winter plummets to a mere 0.47 kWh daily output.

These figures underscore the extreme variability in solar potential throughout the year. The long summer days in Tabasalu provide excellent conditions for solar energy production, making it an ideal time for maximizing solar output. Conversely, the short, dark winter days severely limit solar generation capabilities.

Optimal Panel Installation

To maximize year-round solar production in Tabasalu, Harjumaa, fixed solar panels should be installed at a 49-degree tilt angle facing south. This optimal angle helps capture the most sunlight possible across all seasons, balancing the low winter sun with the higher summer sun path.

Environmental and Weather Factors

Several factors can impede solar production in Tabasalu:

• Long, dark winters with minimal sunlight
• Frequent cloud cover, especially in autumn and winter
• Potential snow accumulation on panels during winter months

To mitigate these challenges, consider implementing snow-shedding panel designs, regular panel cleaning schedules, and potentially incorporating solar tracking systems to maximize light capture during the limited daylight hours of winter. Additionally, using high-efficiency panels can help make the most of available sunlight during less favorable conditions.

While Tabasalu's location presents significant hurdles for year-round solar energy production, careful planning and appropriate technology can still make solar a viable part of the local energy mix, especially when combined with other renewable sources to compensate for the winter shortfall.

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

Link: Solar PV potential in Estonia by location

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

Seasonal solar PV output for Latitude: 59.4264, Longitude: 24.5727 (Tabasalu, Estonia), 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 49° South in Tabasalu, Estonia

To maximize your solar PV system's energy output in Tabasalu, Estonia (Lat/Long 59.4264, 24.5727) throughout the year, you should tilt your panels at an angle of 49° 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 Tabasalu, Estonia

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 Tabasalu, Estonia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 49° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
42° South in Summer	61° South in Autumn	71° South in Winter	51° 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 Tabasalu, Estonia

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 Tabasalu, Estonia.

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 Tabasalu, Estonia

Tabasalu, located in northern Estonia, sits on the southern coast of the Gulf of Finland. The topography of this area is characterized by a gentle, undulating landscape that gradually rises from the coastal lowlands. The terrain around Tabasalu is primarily composed of low-lying plains and small hills, with elevations typically ranging from sea level to about 50 meters above sea level. The coastline near Tabasalu features sandy beaches and shallow bays, with some areas of rocky outcrops. Moving inland, the landscape transitions into a mix of open fields, meadows, and patches of forest. The soil in this region is generally fertile, supporting a variety of vegetation including deciduous and coniferous trees.

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 gently sloping terrain south of Tabasalu offers potential sites for solar farms. These areas benefit from relatively unobstructed exposure to sunlight, which is crucial for maximizing solar energy production. Open fields and agricultural lands in the vicinity, particularly those with a southward aspect, could be suitable locations for solar PV installations. These areas often have minimal shading from trees or buildings, allowing for optimal solar panel placement. Additionally, the lack of steep slopes in much of the surrounding region simplifies the construction and maintenance of large-scale solar arrays. However, it's important to note that Estonia's northern latitude means it receives less intense sunlight compared to more southerly regions, especially during winter months. This factor may impact the overall efficiency and economic viability of large-scale solar projects in the area. Coastal areas, while potentially suitable in terms of topography, may be less ideal due to environmental considerations and the potential for salt spray, which could affect solar panel performance over time. Instead, focusing on inland areas a few kilometers from the coast might offer a better balance of suitable terrain and environmental conditions for large-scale solar PV installations. In conclusion, while the topography around Tabasalu is generally favorable for solar PV development, careful site selection and feasibility studies would be necessary to identify the most optimal locations for large-scale installations, taking into account both geographical and environmental factors.

Estonia solar PV Stats as a country

Estonia ranks 58th in the world for cumulative solar PV capacity, with 414 total MW's of solar PV installed. Each year Estonia is generating 311 Watts from solar PV per capita (Estonia ranks 13th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Estonia?

Yes, there are incentives for businesses wanting to install solar energy in Estonia. The Estonian government offers a range of financial support and tax incentives for businesses that invest in renewable energy sources such as solar power. These include grants, loans, and tax deductions. Additionally, the government has set up a feed-in tariff system which guarantees a fixed price for electricity generated from renewable sources such as solar power.

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

Citation Guide

Article Details for Citation

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.