Cost of Installing a Solar Power System for an EPC Turnkey Project

Cost of installing solar power system for EPC general contractor project

Have you ever wondered about the cost of installing a solar power system ? Let’s learn about this system and the factors that affect installation costs.

A solar power system is a solution that uses renewable energy from sunlight to produce electricity. Solar power not only helps reduce polluting emissions but also helps save monthly electricity costs. So, why not consider installing a solar power system for your home?

What is a solar power EPC general contractor project?

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A solar power EPC general contractor project is a project in which an EPC (Engineering-Procurement-Construction) general contractor will perform all the work from design, supply of materials and equipment, construction and operation. Carry out testing and handover to the investor.

EPC solar power general contractor projects are often applied to large-scale solar power projects , such as farm solar power projects, rooftop solar power projects for industrial parks, factories, building,…

Solar power system installation process for EPC general contractor project

The process of installing a solar power system for an EPC general contractor project includes the following steps:

  1. Survey, prepare pre-feasibility report: conduct site survey, prepare pre-feasibility report, determine installed capacity, select equipment,…
  2. Prepare construction technical design documents: prepare construction technical design documents and submit to the investor for approval.
  3. Procurement of materials and equipment: Procurement of materials and equipment in accordance with construction technical design documents.
  4. Construction: construction of the solar power system according to the construction technical design documents.
  5. Test operation: conduct test operation of the solar power system to ensure the system operates stably.
  6. Handover and acceptance: hand over the solar power system to the investor and accept the project.

Step 1: Survey and prepare a feasible cost report

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Solar power contract

This is the first and most important step in the solar power system installation process. The EPC general contractor will conduct a survey of the installation location, evaluate terrain conditions, climate, house direction, etc. to determine installation capacity and select appropriate equipment.

Step 2: Prepare construction technical design documents

Based on the survey results, the EPC general contractor will prepare technical construction design documents, including detailed drawings, list of materials and equipment, construction methods, etc. Technical design documents Construction techniques will be submitted to the investor for approval before construction begins.

Step 3: Purchase supplies and equipment

After the construction technical design documents are approved, the EPC general contractor will proceed to purchase materials and equipment according to the approved list. Materials and equipment must ensure quality and meet technical standards.

Step 4: Construction

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This is the most important step in the solar power system installation process. The EPC general contractor will carry out the construction of the solar power system in accordance with the construction technical design documents. Construction works include:

  • Construction of a frame system to support the panels
  • Construction of electrical wiring and cable systems
  • Construction of lightning protection and grounding systems
  • Construction and installation of solar panels
  • Construction and installation of inverters
  • Construction of solar power system connection to the grid

Step 5: Test operation

After construction is completed, the EPC general contractor will conduct a test operation of the solar power system to ensure the system operates stably. Test operation tasks include:

  • Check system specifications
  • Check the system’s operability
  • Conduct a system test run

Step 6: Handover and acceptance

After successful test operation, the EPC general contractor will hand over the solar power system to the investor and accept the project.

Factors that determine the cost of installing a solar power system

The factors that determine the cost of installing a solar power system with an EPC general contractor are similar to the factors that determine the cost of installing a conventional solar power system, including:

  • Installed capacity: The larger the installed capacity, the higher the cost.
  • Geographical conditions: Terrain, climate, house direction, etc. also affect installation costs.
  • Type of solar panels: There are many types of solar panels, each with different prices.
  • Type of inverter: Inverters also have many types, each with different prices.
  • Shipping and installation costs: Shipping and installation costs also depend on the installation location.

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In addition, the cost of installing a solar power system by EPC general contractor also depends on a number of other factors, including:

  • Consulting and design costs: The EPC general contractor will perform consulting, design, prepare project documents, etc. Consulting and design costs will be included in the total project cost.
  • Warranty and maintenance costs: The EPC general contractor will provide warranty and maintenance for the solar power system. Warranty and maintenance costs will be included in the total project cost.

Estimated cost table for installing a solar power system by EPC general contractor

Capacity (MWp)Material cost (USD)Booking cost (USD)Consulting and design costs (USD)Warranty and maintenance costs (USD)Total cost (USD)
1350.000150.00010.0005.000515.000
2700.000300.00020.00010.0001.030.000
31.050.000450.00030.00015.0001.545.000
51.750.000750.00050.00025.0002.575.000
103.500.0001.500.000100.00050.0005.150.000

Cost of materials and equipment for installing solar power systems

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The cost of materials and equipment for installing a solar power system accounts for about 70% of the total installation cost. Main types of materials and equipment include:

  • Solar panel: Is the main component of the solar power system, converting sunlight into electricity.
  • Inverter: A device that converts direct current (DC) from solar panels into alternating current (AC) for household use or sale to the electricity grid.
  • Panel support truss: A support frame system to fix solar panels.
  • Electric wires and cables: A wiring system to connect devices in a solar power system.
  • Lightning protection and grounding device: A system that protects the solar power system from lightning and high voltage.

Cost of solar panels

The cost of solar panels depends on many factors, including:

  • Type of solar panels: There are many types of solar panels, each with different prices.
  • Panel performance: The higher the panel performance, the higher the price.
  • Quality of panels: High quality panels cost more than low quality panels.

Inverter costs

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Inverter costs depend on many factors, including:

  • Type of inverter: There are many types of inverters, each with different prices.
  • Inverter capacity: The larger the capacity of the inverter, the higher the price.
  • Inverter quality: High quality inverters cost more than low quality inverters.

Cost of other equipment

The cost of other equipment such as solar panel supports, wires, cables, lightning protection devices, and grounding equipment often accounts for a small part of the total cost of installing a solar power system.

Labor and labor costs for installing solar power systems

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The cost of workers and labor to install a solar power system accounts for about 20% of the total installation cost. This cost includes wages, insurance, travel expenses, and accommodation for workers and employees.

The cost of workers and labor to install a solar power system depends on many factors, including:

  • Installed capacity: The larger the installed capacity, the higher the worker and labor costs.
  • Geographical conditions: Terrain, climate, house direction, etc. also affect worker and labor costs.
  • Construction quality: The higher the construction quality, the higher the worker and labor costs.

Technology and monitoring costs

The cost of technology and monitoring of solar power systems accounts for about 10% of the total installation cost. This cost includes software costs, monitoring equipment, internet connection costs, etc.

Cost of software and monitoring equipment

The cost of software and equipment to monitor solar power systems depends on many factors, including:

  • Type of software and monitoring equipment: There are many types of software and monitoring equipment, each with different prices.
  • Monitoring function: Monitoring software and equipment have many different functions, the more functions, the higher the price.

Internet connection costs

The cost of internet connection to transmit solar power system monitoring data depends on the internet provider and internet package.

Cost of maintenance and repair of solar power systems

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The cost of operating and maintaining a solar power system accounts for about 10% of the total installation cost. This cost includes the cost of inspection, maintenance, and repair of the system.

Inspection and maintenance costs

The cost of checking and maintaining a solar power system depends on many factors, including:

  • Installed capacity: The larger the installed capacity, the higher the inspection and maintenance costs.
  • Terrain and climate: Terrain and climate also affect inspection and maintenance costs.
  • Quality of materials and equipment: The better the quality of materials and equipment, the lower the inspection and maintenance costs.

Repair costs

The cost of repairing a solar power system depends on the level of damage to the system.

Other ancillary costs in the EPC general contractor project

Other ancillary costs in the EPC general contractor project include costs that are not part of the main costs such as material and equipment costs, labor and labor costs, technology and supervision costs, operation and maintenance fees. These ancillary costs often account for a small portion of the total project cost, but also need to be calculated and reasonably estimated.

Some common ancillary costs in EPC general contractor projects:

  • Consulting and design costs: This cost includes consulting costs, solar power system design, project documentation, etc.
  • Cost of applying for a construction permit: This cost includes the cost of applying for a construction permit, the cost of applying for an electrical connection permit, etc.
  • Site clearance costs: This cost includes compensation and site clearance costs to install the solar power system.
  • Tax and fee costs: This cost includes taxes and fees related to the installation of a solar power system.
  • Contingency costs: This cost is planned to compensate for unexpected expenses.

Summary and comments on the cost of installing solar power systems for EPC general contractor projects

The EPC general contractor project requires a solar power system installation cost that must consider many different factors. However, installing a solar power system in an EPC general contractor project brings many environmental and energy saving benefits.

To save costs, projects can take advantage of support programs from the government and relevant organizations. Consulting and choosing a reputable contractor is also an important factor to ensure the most effective cost of installing a solar power system.