Solar PV Analysis of Tehran, Iran
In Tehran, Iran (latitude: 35.7218583, longitude: 51.3346954), solar power generation is a viable option due to its location within the Northern Temperate Zone. The average energy produced per kW of installed solar capacity varies across seasons, with 8.33 kWh/day in Summer, 5.11 kWh/day in Autumn, 3.59 kWh/day in Winter, and 6.65 kWh/day in Spring.
The highest energy production occurs during the summer months when sunlight levels are at their peak; however, certain weather conditions such as heavy cloud cover or sandstorms may impact solar power generation significantly compared to other seasons with more favorable weather conditions.
Moreover, high temperatures can also affect efficiency by causing thermal losses from photovoltaic cells and modules leading to a decrease in overall output power from a given system size when compared to cooler climates with similar levels of irradiance throughout the year.
To optimize solar energy production at this location, it is recommended that fixed panel installations be tilted at an angle of 31 degrees South for maximum exposure to sunlight throughout the year.
While Tehran's climate and geographical position make it suitable for generating solar power year-round, it is essential to consider potential environmental factors that could impede production. Preventative measures such as installing dust-resistant panels or implementing regular cleaning schedules can help ensure greater energy production despite these challenges.
Overall, Tehran's latitude and seasonal variations provide ample opportunity for harnessing solar power effectively; however, careful consideration must be given to local factors that could impact efficiency and output levels during installation planning stages.
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 25 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 Tehran
Seasonal solar PV output for Latitude: 35.7218583, Longitude: 51.3346954 (Tehran, 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 31° South in Tehran, Iran
To maximize your solar PV system's energy output in Tehran, Iran (Lat/Long 35.7218583, 51.3346954) throughout the year, you should tilt your panels at an angle of 31° 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 Tehran, 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 Tehran, Iran. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 31° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 19° South in Summer | 40° South in Autumn | 51° South in Winter | 28° 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 Tehran, 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 Tehran, Iran.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Tehran, Iran
The topography around Tehran, Iran is generally flat to hilly. Areas with open and unobstructed land such as the plains of Varamin, Rey, and Shemiranat are most suitable for large scale solar PV installations. These areas have high levels of sunshine throughout the year and are relatively close to Tehran. Other hilly areas such as the Alborz Mountains may also be considered for solar installations if they offer good access to roads and transmission lines.
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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 13th of August 2022
Last Updated: Wednesday 26th of June 2024
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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.
