Household solar energy – Things to Consider Before You Start

Những lưu ý trước khi sử dụng năng lượng mặt trời hộ gia đình

In the era of increasing electricity prices and increasing environmental awareness, household solar energy is becoming the optimal solution for thousands of Vietnamese households. Installing solar power for households not only helps reduce electricity costs but also demonstrates the trend of green, economical and sustainable living. However, for the system to operate effectively and bring long-term benefits, users need to understand the important notes before investing, from the survey stage, equipment selection to post-installation maintenance.

Why more and more people choose to install solar power for their households?

Significant savings on electricity costs

A solar power system for households can provide from 40% to 80% of household electricity needs, depending on the installed capacity. Solar power is mainly used during the day - the time of highest electricity consumption, helping to reduce the load on the grid and save hundreds of thousands to millions of VND per month.
After about 2-3 years, users can recover their investment, and for the next 20 years, they can use almost free electricity.
Tiết kiệm chi phí từ việc lắp điện năng lượng mặt trời

Sustainable energy source, no worries about price fluctuations

Unlike grid electricity which is affected by fuel costs, solar power is completely immune to price fluctuations. Once the system is installed, users can rest assured of a stable and long-term energy source, without worrying about electricity prices increasing over time. This is the reason why many families and businesses choose to invest early to benefit for many years to come.

Contribute to protecting the living environment

Using solar energy at home helps reduce CO₂ emissions – the main cause of climate change. Each 5 kWp solar power system can help reduce up to 4–5 tons of CO₂ per year, equivalent to planting hundreds of trees. Therefore, investing in solar energy is not only beneficial for individuals but also a meaningful action for the community and the environment.

Some notes when using solar power

Determine the correct electricity needs of the family

Before investing in a home solar power system, you need to clearly determine your average monthly electricity consumption. If your electricity needs are mainly during the day (when there is sunshine) – such as using air conditioners, pumps, refrigerators, office equipment – ​​then the system will be most efficient. For households that use electricity mainly at night, you can consider installing additional storage batteries to take advantage of daytime energy. Calculating the correct capacity will help avoid wasting excess electricity and shorten the investment payback period.

Check the condition and orientation of the roof

The efficiency of household solar energy depends largely on the direction and slope of the roof. South or Southeast-facing roofs usually give the highest efficiency because they receive a lot of sunlight during the day. In addition, the roof must be sturdy, able to withstand the load of the solar panel (about 15-20kg/m²) and not be shaded by trees, electric poles or other buildings. If the roof is old or weak, you should reinforce it before construction to ensure long-term safety.

Choose the right type of home solar system

There are three common types of solar power systems:

• Grid-tie: Easy to install, low cost, solar power connected to EVN grid. Suitable for areas with stable grid power.

• Zero Export: Electricity generated is only used for home appliances, not exported back to the grid. Suitable for areas with limited grid connection.

• Hybrid (Storage – hybrid): Combining battery storage and grid connection, both saving and ensuring backup power during power outages.

Choosing the right type of system will help optimize performance and investment costs. You can contact a reputable unit such as Ego Solar to survey and advise based on your actual electricity consumption and roof conditions.

Calculate investment costs and payback period

The initial cost of installing solar power for your home may be significant, but it is a long-term profitable investment. A good quality system can operate for over 25 years, while the operating and maintenance costs are almost negligible. In addition, thanks to modern inverter technology and high-performance batteries, the average payback period is only 2-3 years, depending on electricity consumption and geographical location. To ensure accuracy, you should ask the construction unit to provide a simulation of the expected electricity output and a ROI (return on investment) report.

Choose a reputable solar power construction unit

A good system depends not only on the equipment but also on the skills and experience of the construction unit. Choose a unit with a license, a team of professional engineers and a clear warranty policy. Reputable companies like Ego Solar often provide a complete solution: survey - design - installation - maintenance, giving you peace of mind about the quality and after-sales service.
Don't forget to check factors such as electrical safety standards, fire protection systems, equipment certificates and solar panel warranty commitments (20-25 years).

Regular system maintenance and monitoring

Proper maintenance of your solar system will help maintain maximum performance throughout its lifetime. Panels should be cleaned every 2–3 months, especially in dusty areas or near industrial areas. Inverters and wiring should be checked regularly to detect early faults or wear.
Today, home solar systems often come with online monitoring software, allowing you to track your daily power output and performance right on your phone. A well-maintained system can maintain up to 90% performance after more than 20 years of operation.

Installing solar energy for households – smart, sustainable investment

Investing in household solar energy is a choice that is both economical and contributes to protecting the planet. Not only does it help reduce long-term electricity costs, the system also increases the value of the house and provides a stable, safe source of electricity. Especially in the context of global energy fluctuations, proactively providing local electricity is a way to help each Vietnamese family be more stable in the future.Liên hệ Ego Solar để được tư vấn

Ego Solar – A reliable partner in the field of clean energy.
We provide complete solar power solutions for households – accurate advice, professional installation, long-term warranty and dedicated care service.
Invest today – enjoy sustainable green power for tomorrow.