Kartepe, Kocaeli, Turkey, located at coordinates 40.7262° N, 29.9931° E in the Northern Temperate Zone, presents a moderately favorable location for solar PV energy generation, though with significant seasonal variations that make it less than ideal for year-round consistent production.

Seasonal Solar Performance

The location shows typical temperate climate solar patterns with strong summer performance and considerably reduced winter output. Summer months deliver the highest energy production at 7.31 kWh per day per kW of installed solar capacity, making this the prime season for solar generation. Spring follows as the second-best performing season with 5.26 kWh per day per kW, offering good transitional energy production. Autumn performance drops to 3.73 kWh per day per kW, while winter months present the most challenging period with only 2.10 kWh per day per kW. This represents a dramatic 71% reduction in output compared to summer peak performance, highlighting the location's seasonal dependency. For fixed panel installations at this location, the optimal tilt angle is 34 degrees facing south to maximize total year-round solar production. This angle is calculated by analyzing daily solar elevation angles throughout the year and weighting them according to solar irradiance data to achieve the best annual average performance.

Environmental and Weather Factors

Several local factors in the Kartepe region can significantly impact solar energy production and require careful consideration during installation planning. Snow and Ice Accumulation: Kartepe's elevation and climate make it prone to winter snow and ice formation on solar panels. Snow coverage can completely block solar radiation, while ice can create hot spots and potential damage. Installing panels at the recommended 34-degree tilt helps with natural snow shedding, and ensuring adequate spacing between panel rows prevents snow buildup from shading adjacent panels. High Humidity and Condensation: The region's proximity to the Sea of Marmara creates high humidity conditions that can lead to condensation on panels, reducing efficiency. Proper ventilation spacing behind panels and selecting panels with anti-reflective coatings designed for humid environments can mitigate these effects. Seasonal Cloud Cover: Winter months typically bring increased cloud coverage, contributing to the already reduced solar output during this period. While this cannot be prevented, oversizing the solar array or incorporating battery storage can help compensate for these periods of reduced generation. Wind Exposure: The elevated terrain around Kartepe can create strong wind conditions that require robust mounting systems. Proper engineering of mounting structures and regular maintenance checks ensure panels remain secure and optimally positioned throughout varying weather 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 Kartepe

Seasonal solar PV output for Latitude: 40.7262, Longitude: 29.9931 (Kartepe, 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 34° South in Kartepe, Turkey

To maximize your solar PV system's energy output in Kartepe, Turkey (Lat/Long 40.7262, 29.9931) throughout the year, you should tilt your panels at an angle of 34° 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 Kartepe, 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 Kartepe, Turkey. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 34° 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	45° South in Autumn	55° South in Winter	32° 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 Kartepe, 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 Kartepe, 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 Kartepe, Turkey

Topographical Features of the Kartepe Region

The area around Kartepe in northwestern Turkey presents a diverse and challenging topographical landscape that significantly influences land use planning and development opportunities. Located in the Kocaeli Province, this region is characterized by rolling hills, steep mountainous terrain, and varied elevations that create a complex geographical profile. Kartepe itself sits within the broader Samanlı Mountains range, where elevations rise dramatically from the surrounding lowlands. The terrain features significant slopes and undulating hillsides that extend across much of the immediate area. Dense forest coverage blankets many of the higher elevations, creating a predominantly wooded landscape that limits large-scale development opportunities in the steepest sections. The topography becomes more moderate as it transitions toward the northern coastal areas near the Sea of Marmara, where gentler slopes and flatter terrain provide more suitable conditions for various types of development. Similarly, moving south and east from the mountainous core, the landscape gradually opens into broader valleys and plateaus with less severe gradients.

Optimal Areas for Large-Scale Solar Development

The most promising locations for substantial solar photovoltaic installations lie in the transitional zones where the mountainous terrain gives way to more manageable topography. The northern approaches toward the Marmara coast offer particularly favorable conditions, with moderate slopes that provide adequate drainage while remaining gentle enough for large-scale construction and maintenance access. Areas to the east and southeast of Kartepe present excellent opportunities for solar development, where the landscape opens into broader valleys and plateau regions. These zones typically feature more consistent elevations with fewer dramatic elevation changes, making them ideal for extensive solar arrays that require relatively flat or gently sloping terrain. The western flanks of the region also show promise, particularly where agricultural lands and open spaces provide sufficient area for large installations without the complications of steep grades or dense forest coverage. These areas often benefit from existing road infrastructure that would facilitate construction and ongoing maintenance operations. Agricultural zones throughout the broader region represent prime candidates for solar development, as they typically occupy the most level and accessible terrain. Many of these areas feature open landscapes with minimal obstructions and established transportation networks that would support large-scale renewable energy projects. The key to successful solar development in this region lies in identifying locations that balance favorable topographical conditions with practical considerations such as grid connectivity, land availability, and environmental sensitivity. Areas with southern-facing slopes of moderate grade can be particularly advantageous, as they combine optimal solar exposure with manageable construction challenges.

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!

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.