Zahedan, Sistan and Baluchestan, Iran, situated at 29.5078° N, 60.8661° E in the Northern Sub Tropics, presents a promising location for solar PV energy generation throughout the year. The city experiences varying levels of solar potential across different seasons, offering opportunities for consistent electricity production.

Seasonal Solar Performance

Solar panels in Zahedan demonstrate peak performance during the summer months, generating an impressive 8.66 kWh per day for each kilowatt of installed capacity. Spring follows closely, with a daily output of 7.49 kWh/kW. Autumn sees a moderate decline to 6.29 kWh/day, while winter experiences the lowest production at 4.88 kWh/day per kW installed.

These figures indicate that Zahedan enjoys favorable conditions for solar energy production throughout the year, with particularly ideal conditions from late spring through early autumn. Even during the winter months, the region maintains a respectable solar output, making it a suitable location for year-round solar power generation.

Optimal Panel Installation

To maximize year-round solar energy production in Zahedan, Sistan and Baluchestan, fixed solar panels should be tilted at an angle of 26 degrees facing south. This orientation ensures optimal exposure to sunlight across all seasons, balancing the varying sun angles throughout the year.

Environmental Considerations

While Zahedan's climate is generally conducive to solar energy production, there are some environmental factors to consider:

• Dust storms: The region occasionally experiences dust storms, which can temporarily reduce panel efficiency.
• High temperatures: Summer heat can slightly decrease panel efficiency.

To mitigate these issues, regular panel cleaning and maintenance should be implemented. Additionally, installing panels with a slight tilt can help prevent dust accumulation. Choosing high-quality, heat-resistant panels and ensuring proper ventilation can help maintain efficiency during hot periods.

Overall, Zahedan's location offers excellent potential for solar PV energy generation, with minimal significant impediments to production. With proper installation and maintenance, solar panels in this area can provide a reliable and efficient source of renewable energy throughout the year.

Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° latitude.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 29 locations across Iran. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Iran by location

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

Seasonal solar PV output for Latitude: 29.5078, Longitude: 60.8661 (Zahedan, Iran), 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 26° South in Zahedan, Iran

To maximize your solar PV system's energy output in Zahedan, Iran (Lat/Long 29.5078, 60.8661) throughout the year, you should tilt your panels at an angle of 26° 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 Zahedan, Iran

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 Zahedan, Iran. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 26° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
13° South in Summer	34° South in Autumn	45° South in Winter	22° 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 Zahedan, Iran

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 Zahedan, Iran.

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 Zahedan, Iran

Zahedan, located in southeastern Iran, is situated in a region characterized by diverse and rugged topography. The city itself lies on a relatively flat plain, but the surrounding landscape is dominated by a mix of features that create a unique and challenging terrain. To the north and east of Zahedan, the land gradually rises into a series of low hills and ridges. These rolling formations are part of the larger Sistan Basin, which extends into neighboring Afghanistan. The hills are typically arid and sparsely vegetated, with rocky outcrops scattered throughout the area.

Mountain Ranges

The most prominent topographical features near Zahedan are the mountain ranges that encircle the city. To the west and southwest, the Sarhadd Mountains loom on the horizon, their jagged peaks creating a dramatic backdrop. These mountains, part of the larger Iranian Plateau, reach heights of over 2,000 meters in some areas and contribute to the region's semi-arid climate. To the south, the terrain becomes increasingly mountainous as it transitions into the Makran Range. This coastal mountain chain runs parallel to the Gulf of Oman and features steep slopes and deep valleys. The presence of these mountain ranges creates a rain shadow effect, resulting in the dry conditions typical of the Zahedan area.

Desert Landscapes

Interspersed between the mountain ranges and hills are expanses of desert and semi-desert terrain. These areas are characterized by their flat or gently undulating surfaces, often covered with gravel, sand, or bare rock. The Lut Desert, one of the hottest and driest places on Earth, lies to the northwest of Zahedan, showcasing the extreme environmental conditions of the region.

Potential for Solar PV

When considering areas suitable for large-scale solar photovoltaic (PV) installations near Zahedan, several factors come into play. The region's abundant sunshine and low precipitation make it an excellent candidate for solar energy production. However, the specific topography of potential sites is crucial for optimal performance. The flat plains surrounding Zahedan offer the most promising locations for large-scale solar PV projects. These areas provide ample space for extensive arrays of solar panels and are easily accessible for construction and maintenance. The lack of significant vegetation or geographical obstacles means minimal shading issues, allowing for maximum solar exposure throughout the day. Some of the gently sloping hillsides to the north and east of the city could also be suitable for solar installations. These areas may require some terrain modification but could potentially offer good solar exposure and drainage. However, care must be taken to avoid areas prone to dust storms or flash flooding, which could impact the efficiency and longevity of the solar panels. While the mountainous regions surrounding Zahedan receive plenty of sunlight, their steep slopes and rugged terrain make them less ideal for large-scale solar PV projects. The cost and complexity of developing such sites would likely outweigh the benefits, although small-scale installations might be feasible in some locations. In conclusion, the varied topography around Zahedan presents both challenges and opportunities for solar energy development. By focusing on the flat plains and carefully selected hillside areas, large-scale solar PV projects could harness the region's abundant solar resources while working within the constraints of its unique landscape.

Iran solar PV Stats as a country

Iran ranks 52nd in the world for cumulative solar PV capacity, with 456 total MW's of solar PV installed. This means that 0.40% of Iran's total energy as a country comes from solar PV (that's 40th in the world). Each year Iran is generating 5 Watts from solar PV per capita (Iran ranks 80th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Iran?

Yes, there are incentives for businesses wanting to install solar energy in Iran. The Iranian government has implemented a number of policies and programs to encourage the development of renewable energy sources, including solar energy. These include tax exemptions, subsidies, and other financial incentives such as low-interest loans. Additionally, the government has set up a Renewable Energy Organization (SUNA) which provides technical assistance and support for businesses interested in installing solar systems.

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

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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.