Solar energy
Solar energy is the world's greatest energy source. In recent years, as fossil fuel resources have been depleted, this renewable and environmentally compatible form of energy has attracted experts' attention for practical use. As a result, major investments have been made worldwide, including photovoltaic systems that convert sunlight directly into electricity.
Why photovoltaic systems?
- Reduce dependence on limited and valuable fossil fuels.
- Reduce fuel delivery difficulties and costs, especially in remote areas.
- Reduce the cost of building refineries and oil and gas transmission pipelines.
- Generate power where it is consumed, saving transmission and distribution costs and eliminating dependence on the national grid.
- Diversify energy supply sources.
- Prevent CO2 generation and help protect the environment.
- Install systems at different power ratings to match users' needs.
- Benefit from a suitable service life and straightforward operation.
- Install modules on building façades or rooftops as building materials.
Why solar in Iran?
The use of solar energy worldwide as a free energy source—in large solar farms and power plants, as well as small plants and consumer equipment—has made many countries independent of electricity imports. European and American countries in the West, and countries including Korea, China and Japan in the East, are leaders in supplying and manufacturing solar equipment and in building and operating solar power plants.
Unfortunately, Iran's vast oil, gas and electricity resources, together with limited public awareness of energy consumption practices, have held back progress in solar energy use. Nevertheless, Iran is well suited to developing this new technology for the following reasons:
Iran is a sunny country and ranks among the best countries for receiving solar energy. Each day, 5.5 kWh of solar energy reaches every square metre of land in Iran, and around 300 sunny days occur across 90% of its territory. A simple calculation shows that, if solar energy were captured on only 1% of Iran's area at a system efficiency of only 1%, it would be possible to receive 9,000,000 MWh of solar energy per day.
The country's current electricity demand is 60,000 megawatts annually. To encourage adoption, Iran's electricity distribution company guarantees purchases for 20 years, up to an annual capacity of 5,000 megawatts, at announced rates around ten times the retail electricity price, with annual adjustments. Earlier action therefore means guaranteed investment.
Iran's banking system offers financing for small customer-owned power plants, described here as the best method of investment.
The country's current scientific and industrial capabilities are sufficiently prepared to establish and expand solar technology.
Why solar for manufacturing facilities?
- Add a new production activity to your business through solar energy! Create two income streams from one facility!
- Factory roofs, production buildings and parking areas are ideal places for another form of production: electricity!
- No human labour required! Production continues even on holidays and without operator supervision!
- Recover the initial investment within 2–3 years!
- Guaranteed annual returns of more than 25%, and up to 40%—higher than bank returns!
- Long equipment life of 20–30 years and long-term warranties.
- Pre-sell electricity under a 20-year contract at a guaranteed price more than ten times the electricity price on the bill.
- Sell electricity for 20 years without marketing, advertising or sales departments.
- Expand the project gradually and without risk, according to available capital and installation space.
- Monthly adjustment of guaranteed purchase rates using inflation and exchange-rate changes.
- Payment delays of no more than two months, with proceeds deposited into the customer's nominated account every two months.
- Obtain bank financing to build small customer-owned power plants.
Why solar for residential buildings?
- With solar energy, the roof of every residential building can become a power plant!
- Produce electricity completely free of charge!
- Building expenses, including elevator charges and electricity consumption, can be covered by the proceeds of electricity sales to the distribution company.
- Recover the initial investment within 2–3 years!
- Guaranteed annual returns of more than 25%, and up to 40%—higher than bank returns!
- Long equipment life of 20–30 years and long-term warranties.
- Pre-sell electricity under a 20-year contract at a guaranteed price more than ten times the electricity price on the bill.
- Sell electricity for 20 years without marketing, advertising or sales departments.
- Expand the project gradually and without risk, according to available capital and installation space.
- Monthly adjustment of guaranteed purchase rates using inflation and exchange-rate changes.
- Payment delays of no more than two months, with proceeds deposited into the customer's nominated account every two months.
Solar energy with Parto Gostar Arman
With more than two decades of experience in power plant and energy projects, Parto Gostar Arman is proud to provide extensive solar power plant design, procurement and construction services as the exclusive representative of China's TOPRAY SOLAR in Iran.
Our expertise
- Sales of TOPRAY SOLAR modules with valid product warranties.
- Official and exclusive representation in Iran and direct equipment supply to project contractors.
- Design and installation of small solar plants, up to the electricity connection capacity, for residential, commercial and manufacturing premises and parking areas.
- Obtaining permits and handling administrative and registration procedures for individuals and legal entities.
- Design, equipment procurement and construction of large solar power plants and solar farms.
- Consulting, follow-up and securing guaranteed electricity purchase agreements (PPAs) for investors.
How do we help you?
At Parto Gostar Arman, we handle solar power plant implementation from start to finish:
- Preliminary site selection and solar resource assessment.
- Detailed system design using specialist software.
- Obtaining permits from the Renewable Energy and Energy Efficiency Organization (SATBA).
- Supplying primary and auxiliary equipment from reputable brands.
- Installation and commissioning by an experienced technical team.
- Support, after-sales services and operator training.
Why choose Parto Gostar Arman?
Two key factors matter in EPC power plant projects:
1. Precise design and engineering (Engineering).
2. Professional and reliable implementation (Construction).
We support you at both stages, drawing on extensive experience and a strong project track record. Founded in 1375 in the Iranian calendar (1996–1997), Parto Gostar Arman has completed dozens of projects across power generation sectors and is now proud to contribute its knowledge and experience to sustainable development through solar energy.
Example projects and track record
Contact us for a free consultation and to arrange visits to example projects.
20 MW power plant project in Mahan, Kerman
Implementation of a 20 kW project in Sabzevar
Notable projects and equipment supply capabilities
Collaboration with Fartak on the 10 MW Sabzevar project
Under its consultancy agreements, Parto Gostar Arman acts as Fartak's EPC consultant for the large 10 MW solar project in Sabzevar.
The project has entered the implementation phase after receiving its official PPA approval. Subsequent stages are being pursued in close cooperation between Parto Gostar Arman and Fartak.
Once operational, the solar farm will supply electricity to Iran's national grid, supporting sustainable development and renewable energy use.
Expertise in solar power plant equipment procurement
With more than 20 years of experience supplying specialist equipment for industrial and power plant projects, Parto Gostar Arman has worked with prominent global brands to ensure solar system quality and performance.
We are the exclusive representative of China's TOPRAY SOLAR and can also supply equipment from other leading global brands:
- QCELL solar modules — made in South Korea.
- EP Solar — solar modules made in Germany.
- Solar Sanat Firouzeh — domestic production.
- KACO inverters — made in Germany.
- FRONIUS inverters — made in Germany.
Why is TOPRAY SOLAR our choice?
As TOPRAY SOLAR's official and exclusive representative in Iran, we proudly supply solar modules with original warranties to project developers and contractors.
Established in 1992, TOPRAY SOLAR is a pioneer in China's photovoltaic industry. Its complete production chain includes crystalline solar modules, wafers, cells, modules and PV glass, and it has operated internationally for years with capacity exceeding 800 MW.
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Subsidiaries and global presence
- Ten subsidiaries: five factories in China and five sales centres in Europe, North America and Africa.
- Annual turnover exceeding USD 1 billion.
- Warehouses and after-sales services in key regions worldwide.
Notable international projects
- 110 MW Dingbian power plant — China.
- 10 MW Weinan power plant — China.
- 20 MW Kashi — China.
- 7.5 MW — India.
- 3.3 MW — Germany.
- 1.04 MW rooftop project — an airport in Germany.
- 530 kW roadside project — Germany.
And hundreds of other solar projects in different countries.
Quality control and international testing
All TOPRAY products are tested in well-equipped laboratories before shipment:
- Solar simulation.
- Mechanical load testing.
- Electroluminescence (EL) and other precise performance tests.
- Accurate product classification by performance specifications.
- Secure packaging against moisture, dust and physical damage.
International approvals
- TÜV Rheinland
- CE
- UL
- Fraunhofer ISE