Urmia, West Azerbaijan Province, Iran, situated at 37.553°N, 45.076°E, presents a mixed picture for solar energy generation through photovoltaic (PV) systems. This location in the Northern Temperate Zone experiences significant seasonal variations in solar energy production, which affects its overall suitability for year-round solar power generation.

Seasonal Solar Energy Production

The solar energy output at Urmia varies considerably across the four seasons:

• Summer: 8.43 kWh/day per kW installed
• Spring: 6.60 kWh/day per kW installed
• Autumn: 4.72 kWh/day per kW installed
• Winter: 3.21 kWh/day per kW installed

This data indicates that summer and spring are the most productive seasons for solar energy generation in Urmia, West Azerbaijan Province, with output levels more than doubling those of winter.

Optimal Times for Solar Generation

The most ideal period for solar energy production in Urmia spans from late spring through early autumn. During these months, longer daylight hours and higher sun angles contribute to increased solar panel efficiency. However, the significant drop in output during autumn and winter suggests that supplementary energy sources may be necessary to meet consistent year-round energy demands.

Panel Tilt Angle for Maximum Efficiency

For fixed solar panel installations in Urmia, West Azerbaijan Province, the optimal tilt angle to maximize year-round energy production is 32 degrees facing South. This angle takes into account the location's latitude and seasonal variations in sun position, ensuring the best possible average annual energy yield.

Environmental and Weather Considerations

While Urmia's climate is generally favorable for solar energy production, there are some factors that could potentially impact solar panel efficiency: 1. Dust storms: The region occasionally experiences dust storms, which can deposit a layer of fine particles on solar panels, reducing their efficiency. Regular cleaning and maintenance of panels can mitigate this issue. 2. Snow accumulation: Winter snowfall, though not excessive, can temporarily cover panels and decrease output. Installing panels at the recommended 32-degree tilt can help snow slide off more easily. 3. Temperature extremes: Urmia experiences hot summers and cold winters, which can affect panel efficiency. Choosing high-quality panels designed to perform well in a wide temperature range and ensuring proper ventilation during installation can help maintain optimal performance.

In conclusion, while Urmia's location presents some challenges for year-round solar energy production, particularly during winter months, it still offers significant potential for solar PV systems, especially during the spring and summer seasons. Proper installation techniques and regular maintenance can help maximize energy output and overcome local environmental factors.

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 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 Urmia

Seasonal solar PV output for Latitude: 37.553, Longitude: 45.076 (Urmia, 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 32° South in Urmia, Iran

To maximize your solar PV system's energy output in Urmia, Iran (Lat/Long 37.553, 45.076) throughout the year, you should tilt your panels at an angle of 32° 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 Urmia, 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 Urmia, Iran. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 32° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
21° South in Summer	42° South in Autumn	52° South in Winter	30° 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 Urmia, 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 Urmia, 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 Urmia, Iran

The topography around Urmia, Iran, is characterized by a diverse landscape that includes both flat plains and mountainous regions. The city itself is situated in a large valley near the western shore of Lake Urmia, a vast salt lake that dominates the region. The valley floor where Urmia is located is relatively flat, with gentle slopes rising towards the surrounding mountains. To the west and southwest of Urmia, the terrain becomes more rugged as it transitions into the Zagros Mountains. These mountains form a natural barrier between Iran and Turkey, with peaks reaching heights of over 3,000 meters (9,800 feet) in some areas. The mountain slopes are often steep and rocky, with narrow valleys cutting through the range. To the east of Urmia lies Lake Urmia, which is surrounded by salt flats and marshlands. The lake's shoreline has receded significantly in recent years due to drought and water diversion, exposing large areas of salt-encrusted land. This flat, barren terrain extends for several kilometers around the lake's perimeter. North and south of Urmia, the landscape is a mix of rolling hills and agricultural plains. These areas are generally less mountainous than the western regions, with more gradual elevation changes and broader valleys.

Suitability for Large-Scale Solar PV

When considering areas near Urmia for large-scale solar photovoltaic (PV) installations, the most suitable locations would likely be found in the flatter regions to the east and southeast of the city. These areas offer several advantages for solar energy development: 1. The flat terrain of the salt flats and agricultural plains provides ample space for large solar arrays without the need for extensive land preparation. 2. The lack of significant geographical features means there are fewer obstacles to block sunlight, maximizing solar exposure throughout the day. 3. The arid climate of the region results in clear skies for much of the year, ensuring high levels of solar radiation. 4. The proximity to existing infrastructure in and around Urmia could facilitate easier grid connection and maintenance of solar facilities. While the mountainous areas to the west might receive good solar exposure on south-facing slopes, the rugged terrain would make construction and maintenance more challenging and costly. Additionally, the flat areas closer to the city would likely have better access to transmission lines and other necessary infrastructure. It's important to note that any large-scale solar development would need to consider environmental factors, particularly the fragile ecosystem around Lake Urmia. Careful planning and environmental impact assessments would be necessary to ensure that solar projects do not further stress the region's water resources or negatively impact local wildlife habitats.

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.