Design Standards for Solar Power when Implementing EPC Contractor Projects

Solar power design standards when implementing EPC general contractor projects

In today’s world, the demand for clean energy is growing, and solar power systems have become the leading solution. In this article, we will learn about important design standards for EPC solar power projects.

From engineering to quality control processes, the goal is to ensure each project not only meets high performance but also complies with leading quality standards in the solar industry.

So what are the solar power design standards that need to be met when implementing EPC general contractor projects? Let’s answer VREnergy in this article!

What are solar power design standards?

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Solar power design standards are regulations and technical requirements, safety, quality, and efficiency that a solar power system must meet. Compliance with these standards will help ensure the system operates safely, efficiently and sustainably.

Solar power design standards in Vietnam

In Vietnam, solar power design standards are regulated by authorities such as the Ministry of Industry and Trade, the Ministry of Construction, and the General Department of Standards, Metrology and Quality. These standards include:

  • National standard TCVN 7447-7-712:2015 (IEC 60364-7-712:2002) on Photovoltaic power systems using solar energy (PV).
  • National standard TCVN 6781:2015 (IEC 61215:2005) on Photovoltaic Modules – Testing requirements and quality assessment.
  • National standard TCVN 12232:2018 (IEC 61730:2016) on Photovoltaic cells – Safety requirements.
  • National standard TCVN 10896:2015 (IEC 61646:2008) on Terrestrial thin-film photovoltaic (PV) modules – Design quality and type approval.

In addition, international standards are also applied in solar power design in Vietnam, including:

  • IEC 60364-7-712:2002 (IEC 60364-7-712:2021) on Low-voltage electrical installations – Part 7-712: Requirements for special installations or special areas – Systems Photovoltaic sources use solar energy (PV).
  • IEC 61215:2005 on Photovoltaic modules – Testing and qualification requirements.
  • IEC 61730:2016 on Photovoltaic cells – Safety requirements.
  • IEC 61646:2008 Terrestrial thin-film photovoltaic (PV) modules – Design quality and type approval.

Steps to design a solar power system

Solar power system design includes the following steps:

Survey the location to install the solar power system

Surveying the solar power system installation location is the first important step in the system design process. A thorough survey will help determine the factors necessary to design a system that operates efficiently and safely.

Factors that need to be investigated

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Factors to consider when installing a solar power system include:

  • Sun direction: Sun direction is the most important factor affecting the performance of a solar power system. Solar panels should be installed facing south to receive the most sunlight during the day.
  • Roof height: Roof height will affect the tilt angle of solar panels. The ideal tilt angle of solar panels is 30-45 degrees compared to the horizontal plane.
  • Installation area: The installation area needs to be large enough to accommodate all the solar panels needed for the system.
  • Roof condition: The roof needs to be safe to withstand the weight of solar panels and auxiliary systems.
  • Obstructions: Obstructions such as trees, tall buildings, etc. can block sunlight and reduce system performance.
  • Local regulations: Need to learn local regulations on installing solar power systems.

Survey steps

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The process of surveying the solar power system installation site includes the following steps:

  • Access to location: Surveyors need to approach the installation location to check basic factors such as location, area, etc.
  • Survey sun direction: Use a compass to determine the South and North directions.
  • Survey roof height: Use a tape measure to measure roof height.
  • Survey the installation area: Measure the area that can be used to install solar panels.
  • Survey the roof condition: Check the roof’s sturdiness, the roof’s bearing capacity,…
  • Survey for obstructions: Check for obstructions that may block sunlight.
  • Find out local regulations: Find out local regulations on installing solar power systems.

Survey results

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Survey results need to be recorded fully and accurately to serve the solar power system design process. Survey results should include the following information:

  • Sun direction: South or Southeast.
  • Roof height: Height from the ground to the top of the roof.
  • Installation area: The area of ​​land that can be used to install solar panels.
  • Roof condition: The roof’s sturdiness and bearing capacity.
  • Obstructions: Obstructions can block sunlight.
  • Local regulations: Local regulations on installing solar power systems.

Device selection

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Based on electricity demand, suitable equipment for the solar power system can be selected, including:

  • Solar panels: Is the main component of the solar power system, responsible for absorbing sunlight and converting it into electricity.
  • Inverter: A device that converts direct current (DC) from solar panels into alternating current (AC) for use in electrical equipment.
  • Grid inverter: A device that connects the solar power system to the national grid.
  • Charge controller: A device that controls the battery charging process.
  • Battery: A device that stores excess electricity from a solar power system.

System design

Based on the technical specifications of the equipment, it is possible to design a solar power system, including connection diagram, installation location,…

Factors to consider when designing a solar power system

When designing a solar power system, the following factors should be considered:

  • Electricity demand: Electricity demand is the most important factor determining the capacity of a solar power system.
  • Installation location: Sun direction, roof height, installation area, etc. are factors that need to be considered when designing a solar power system.
  • Climate: Climate can affect the performance of a solar power system.
  • Cost: Cost is a factor that needs to be considered when designing a solar power system.
  • Types of solar power systems

There are two main types of solar power systems:

  • Grid-connected solar power system : This system connects to the national grid and sells excess electricity to the power plant.
  • Independent solar power system : This system is not connected to the national grid and uses batteries to store excess electricity.

Design appraisal

Appraising the solar power system design is an important step to ensure the system operates safely and effectively.

Standards that need to be followed in solar power system design

During the design of the solar power system, it is necessary to comply with the following standards:

  • TCVN national standards on solar power.
  • IEC international standards on solar power.
  • Local regulations on installing solar power systems.

VREnergy – EPC general contractor project implementation unit and professional solar power system operation and maintenance

VREnergy is a unit specializing in implementing EPC (Engineering, Procurement, and Construction) general contractor projects and operating and maintaining professional solar power systems, with the goal of achieving high quality standards.

  • EPC general contractor : VREnergy seems to specialize in taking on the role of EPC general contractor in solar power projects. This includes design, procurement, and construction of the entire system.
  • O&M Operation and Maintenance : In addition to implementing new projects, VREnergy is capable of operating and maintaining already built solar power systems. This ensures long-term system performance and reliability.

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Achieving high quality standards is an important priority. You can specifically describe the standards, quality control procedures, and certifications that VREnergy is applying to ensure product and service quality.

For a field like solar energy, professionalism in every aspect of the project is important. May mention our team of experts, industry experience, and professional approach towards customers and partners.

If so, you can also mention that VREnergy uses technologies and has extensive experience in deploying and managing solar power systems.

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The VREnergy solar power project has been implemented , you can mention it as a certification of their capabilities and success in the field of solar energy.

With a commitment to quality and compliance with the highest safety standards, VREnergy is not simply a partner in project construction, but also a guide and companion to customers on their journey to energy transformation. amount of sun. We are proud to be the driving force behind the success of many large-scale projects, contributing to the sustainability and performance of solar energy systems across the region.