- For areas where grid electricity is unavailable: forested areas, islands, or remote mountainous areas.

- For areas where grid electricity is available but far from grid connection points: Investing in an Off-Grid system will be effective.

- For areas where grid electricity is available but power failure happens frequently: When using a grid-connected system, if the grid fails, you will also lose power. Then - You should have an Off-Grid system and an attached backup generator.

- Off-grid solar systems use solar energy to generate electricity. This solar-generated energy powers appliances automatically without connecting to grid power.

Application:
- Solar Power sources in general or Off-grid Solar systems, in particular, are widely used around the world. In Vietnam, more and more families and businesses have used the system in recent years. The system is widely present in the following areas:
Residential area.
+Many offices and large buildings are also using off-grid solar systems to save electricity.
+ Off-grid solar system in installed storehouses, factories, and companies more and more.
+ Commercial centers, supermarkets, hospitals, schools, airports, train stations are all installed and use solar power to replace grid electricity.

- Working principle:
Solar panels are responsible for absorbing solar radiation and converting it to direct current (DC). This DC is then used to charge the storage system (battery) via the controller. Finally through the DC - AC voltage converter (inverter). Direct current is converted to alternating current to power daily electrical equipment.

Pros:
The off-grid solar power system brings a lot of great benefits. This is a valuable and great resource that nature bestows. So, in addition, what are other outstanding advantages of an off-grid solar system?
The solar power system can take advantage of the space on the roof, also known as a rooftop solar power system.
- Independent power source without the need for grid electricity. So when the grid power supply is cut off, flickered, your power supply will not be affected.
- Unlike diesel generators that are both noisy and polluted, off-grid solar systems operate quietly and are eco-friendly.
- The system is easy to move and install anywhere without being entangled like grid electricity.
-Completely safe for users. We no longer have to worry about electric shock or fire hazards.
- The system works even in cold weather, as they only require sunlight. Solar panels constantly absorb and convert into electricity in this kind of weather condition.
- Bringing economic efficiency and making people's lives more modern and civilized.
- No more worrying about electricity prices increasing.
- Using off-grid solar power systems helps protect the environment. Make a great contribution to reducing environmental pollution.

Cons :
- High initial investment costs: – If you are completely disconnected from the electric utility, you will need a backup power source for bad weather conditions, when power generated from the sun is low. Adding some extra rechargeable batteries and/or a generator will increase your investment costs.
- Limited solar energy storage – Even with backup power, energy storage is still limited. After a few consecutive days of cloudy weather, you may run out of power reserve.
- Energy efficiency is a must– When you live in an off-grid way, you have to be careful about your household energy use, or you may not have enough energy for your appliances. So when you make the initial investment, you need to choose the installation package carefully.

Calculate and select equipment in accordance with the needs of the customers: power consumption, load capacity, auxiliary load capacity (back-up load), back-up load power using duration, battery capacity ...

- Ensure compatibility between devices: between panels and inverter, inverter and battery.

- Set proper operating mode, charge and discharge duration to get the highest economic efficiency.

INS Energy Company (former name is Solar INS company), full name is INS Energy Technology Company Limited, was established in 2018.

With the goal of becoming a leading company in providing solutions and products in the field of clean and renewable energy, INS Energy has built a team of highly qualified, experienced, technicians and engineers that ready to meet the needs of customers in the most comprehensive and affordable way.

Over 3 years of establishment and development, INS ENERGY's energy products and solutions have been present in many large projects. We have also developed a business cooperation network with more than 100 Dealers / Distribution & Installation Partners nationwide.