Rize, Turkey, located at latitude 41.0271 and longitude 40.5201 in the Northern Temperate Zone, shows varying potential for solar energy generation throughout the year. This coastal city on the Black Sea experiences distinct seasonal patterns in solar electricity production.

Seasonal Solar Production

Solar PV panels in Rize generate their highest output during summer months, producing an average of 6.16kWh per day for each kilowatt installed. Spring follows as the second most productive season with 5.22kWh/day. In contrast, autumn sees a significant drop to 3.00kWh/day, while winter performance falls to its lowest at just 2.04kWh/day per kilowatt of installed capacity.

This seasonal variation creates a production pattern where approximately 70% of the annual solar energy is generated during spring and summer months, making the warm half of the year significantly more productive for solar installations in this location.

Optimal Installation Configuration

For fixed solar panel installations in Rize, the ideal tilt angle to maximize year-round energy production is 35 degrees facing South. This angle optimizes the capture of available sunlight across all seasons, balancing the higher summer sun path with the lower winter sun trajectory.

Environmental Challenges

Several significant environmental factors can impact solar production in Rize:

• High precipitation levels, as Rize is one of Turkey's rainiest regions, can reduce solar exposure and efficiency
• Frequent cloud cover throughout the year, particularly in winter months
• Potential for snow accumulation in winter, which can block panels
• High humidity levels that may accelerate weathering of components

Mitigation Strategies

To maximize solar energy production despite these challenges, several preventative measures can be implemented:

• Install panels with self-cleaning hydrophobic coatings to combat the effects of high rainfall
• Ensure proper elevation and steeper winter tilt angles to promote natural snow shedding
• Use marine-grade components and protective coatings to prevent humidity-related corrosion
• Implement robust mounting systems that can withstand occasional strong winds from the Black Sea
• Consider microinverter or power optimizer technology to minimize the impact of partial shading from cloud cover

While not ideal year-round compared to sunnier regions in Turkey, Rize can still provide reasonable solar energy production with proper system design and installation practices that account for local environmental conditions.

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

Link: Solar PV potential in Turkey by location

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

Seasonal solar PV output for Latitude: 41.0271, Longitude: 40.5201 (Rize, Turkey), 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 35° South in Rize, Turkey

To maximize your solar PV system's energy output in Rize, Turkey (Lat/Long 41.0271, 40.5201) throughout the year, you should tilt your panels at an angle of 35° 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 Rize, Turkey

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 Rize, Turkey. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 35° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
25° South in Summer	46° South in Autumn	56° South in Winter	33° 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 Rize, Turkey

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 Rize, Turkey.

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 Rize, Turkey

Rize, located in the northeastern part of Turkey along the Black Sea coast, presents a complex and varied topographical landscape. The city sits nestled between the dramatic Black Sea to the north and the imposing Kaçkar Mountains to the south. This striking geographical setting creates a diverse terrain that ranges from coastal plains to steep mountainous regions within a relatively short distance.

Coastal Lowlands

The immediate vicinity of Rize city features a narrow coastal strip where the terrain is relatively flat or gently rolling. This area quickly transitions into foothills as one moves inland. The coastal zone is characterized by lush vegetation due to the region's exceptionally high precipitation levels, making it one of the wettest parts of Turkey. These lowland areas are densely populated and extensively used for agriculture, particularly tea cultivation, which blankets the hillsides in organized plantations.

Mountain Terrain

Moving south from the coast, the landscape rapidly ascends into the Kaçkar Mountains, part of the Pontic Mountain range. These mountains rise dramatically, with peaks reaching over 3,900 meters in elevation. The mountain slopes are steep, often with gradients exceeding 40 degrees in many places. Deep valleys cut through the mountains, carved by fast-flowing rivers that drain the abundant rainfall from the higher elevations toward the Black Sea.

River Valleys

The Rize region is crossed by numerous rivers and streams flowing northward from the mountains to the sea. These waterways have created distinctive valleys that penetrate deep into the mountainous terrain. The İyidere and Fırtına rivers are among the most significant, having shaped wide valleys that provide natural transportation corridors into the interior highlands. These river valleys typically have steeper slopes on their eastern sides due to the prevailing geological structures.

Solar PV Suitability

When considering areas near Rize for large-scale solar photovoltaic installations, several factors must be taken into account. The region presents significant challenges for solar energy development due to its topographical and climatic characteristics: The inland plateaus and higher elevation areas south of the Kaçkar Mountains would be most suitable for large-scale solar PV installations. These areas, particularly those in the rain shadow of the mountains, receive substantially more direct sunlight than the coastal regions. The plateaus around cities like Erzurum, though further from Rize itself, offer more favorable conditions with their relatively flat terrain and clearer atmospheric conditions. Some of the broader river valleys and less steep hillsides within 50-100 kilometers south of Rize might offer limited opportunities for medium-sized solar installations. These would need careful site selection to maximize southern exposure and minimize shading from surrounding mountains. The coastal plains themselves, while more accessible and closer to population centers, are generally poor candidates for large-scale solar development due to frequent cloud cover and high humidity. However, smaller installations on building rooftops or in specially selected microclimate zones might still be viable for supplementary energy production.

Topographical Challenges

The mountainous nature of the terrain presents significant construction and maintenance challenges for large-scale solar facilities. Access roads would need to navigate steep gradients, while the installation sites themselves would require substantial earth-moving work to create level surfaces for panel arrays. The potential for landslides and erosion on modified slopes would necessitate careful engineering and ongoing site management. Additionally, the steep mountains create substantial shading issues throughout much of the region, with north-facing slopes receiving significantly reduced direct sunlight. This factor severely limits the suitable area for efficient solar energy production in the immediate vicinity of Rize. In conclusion, while the Rize region itself presents significant challenges for large-scale solar development due to its mountainous topography, high precipitation, and frequent cloud cover, moving further inland to higher elevation plateaus beyond the Kaçkar Mountains would provide more favorable conditions for substantial solar PV installations.

Turkey solar PV Stats as a country

Turkey ranks 16th in the world for cumulative solar PV capacity, with 7,817 total MW's of solar PV installed. This means that 5.90% of Turkey's total energy as a country comes from solar PV (that's 14th in the world). Each year Turkey is generating 92 Watts from solar PV per capita (Turkey ranks 41st in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Turkey?

Yes, there are incentives for businesses wanting to install solar energy in Turkey. The Turkish government offers a number of financial incentives and tax breaks for businesses that invest in renewable energy sources such as solar power. These include grants, loans, and tax credits. Additionally, the government has set up a feed-in tariff system which guarantees a certain price per kilowatt hour of electricity generated from solar panels. This helps to make investing in solar energy more attractive to businesses.

Do you have more up to date information than this on incentives towards solar PV projects in Turkey? 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.