How much does it cost to install a solar power system?
As electricity costs continue to rise and demand for electricity increases, finding sustainable alternative energy sources becomes a top priority for many households and businesses. Solar power is becoming a smart investment and saving solution chosen by many households and businesses. However, for the system to be highly efficient and operate for a long time, it is extremely important to learn about the cost of installing a professional complete solar power system. The following article will help you better understand the factors to consider and the price of installing solar power at home.
In recent years, solar power has become the leading energy saving solution for both households and businesses. However, the market has seen the emergence of many suppliers with large price differences, making it difficult for users to determine which is the most reasonable cost and the best investment efficiency.
Many customers choose cheap packages and encounter the following situations:
The system degrades quickly, the inverter fails after a few years.
The solar panel does not achieve the committed performance.
No warranty or routine maintenance support.
Therefore, learning about the cost of installing a complete solar power system helps you optimize your budget, ensuring long-term performance and safety.
A professional rooftop solar power contractor not only provides quality equipment but also ensures performance and long-term durability for the entire system. Choosing the right contractor helps customers feel secure about both the quality of the project and the investment efficiency.
First of all, you will be consulted and designed a solar power system with technical standards, based on actual needs, roof orientation, installation location and power consumption. Thanks to that, the system capacity is always optimized, avoiding waste and ensuring the fastest return on investment.
Next, the rooftop solar power installation process is carried out safely, in accordance with electrical standards and fire prevention and fighting regulations. Every step from installing the frame, wiring to connecting the inverter is closely monitored, ensuring stable operation immediately after grid connection.
Ego Solar - rooftop solar power construction unit
When cooperating with a professional unit, customers also enjoy a long-term warranty policy: solar panels from 12-25 years, inverters 5-10 years, and periodic maintenance services to help the system maintain the highest efficiency throughout its life cycle. In short, investing in a rooftop solar power system is not just an initial expense, but a long-term profitable strategy, and that is only achieved when you choose the right reputable, professional and experienced construction unit.
The cost of installing a solar power system depends on many factors, specifically:
|
Element |
Impact on costs |
|
System capacity (kWp) |
The larger, the higher the investment cost but the price/kWp decreases. |
|
Type of solar panel |
Mono Perc, Half-cell, TOPCon – different performance and price. |
|
Grid-tie inverter |
Brand and capacity directly affect price. |
|
Frame & auxiliary materials |
Depending on material (aluminum, galvanized steel, stainless steel) and roof height. |
|
Installation location |
Construction costs, transportation, roof structures vary. |
|
Warranty and technical support after system handover |
Long warranty package, good technical support → higher cost but long-term safety. |
Below is a reference price list for the complete solar power installation service, including design, materials, construction and Ego Solar standard warranty:
|
System capacity |
Suitable for |
Investment costs (VNĐ) |
Save electricity/month |
Payback period |
|
3 kWp |
Small household |
26 - 27 million |
1 – 1.2 million |
1-2 years |
|
5 kWp |
Household of 4–6 people |
40 - 50 million |
1.7 - 1.9 million |
1-2 years |
|
10 kWp |
Big house, office |
80 - 100 million |
3.5 million |
1-2 years |
|
50 kWp |
Small manufacturing facility |
400 million |
17-18 million |
2-3 years |
|
100 kWp |
Medium factory |
800 million |
35 million |
2-3 years |
Solar panel price
Solar panels typically cost 8–12% of the total investment, varying depending on materials, area, and roof height.
Galvanized steel frame: durable, cost effective.
High quality aluminum frame: lightweight, corrosion resistant, suitable for coastal areas.
To choose the right installation package, you need to base on your electricity consumption needs and roof area:
Household: should choose 3–10 kWp system depending on monthly electricity consumption.
Small businesses: 30–50 kWp systems reduce electricity bills by 40–60%.
Large manufacturing plant: system over 100 kWp is most optimal
If your electricity bill averages VND60 million/month, a 200 kWp system can save ~VND60 million/month, pay back the investment in just 2–3 years and generate a net profit of more than VND14 billion in 25 years.
Installing a complete solar power system is a smart investment, helping you save on electricity costs, proactively manage your energy sources, and increase the value of your project. However, to ensure the efficiency and durability of the system, prioritize choosing to cooperate with a reliable construction unit to help ensure the quality of the project and the performance of the system for many years.
Ego Solar – Pioneer in professional installation of complete solar power systems.
Transparent quotation – Safe construction – Committed performance.
Sustainable savings solutions for Vietnamese households and businesses.