Hybrid Inverter – What is it?

For solar power systems, the inverter is a crucial component that requires careful consideration and understanding before use. Depending on the type of solar power system, we have corresponding types of inverters such as On-Grid, Off-Grid, and Hybrid inverters. In this article, let’s delve into the Hybrid inverter!

1. What is a Hybrid Inverter?

An inverter (power converter) helps transform the direct current (DC) generated by solar panels into alternating current (AC). This facilitates the integration of solar electricity into the national grid or charging into a storage system (battery) for consumer loads.

Depending on the type of solar power system—whether grid-tied, off-grid, or hybrid—different compatible inverters are used, each designed to convert energy according to specific usage requirements.

On-Grid Inverter: Used in grid-tied solar power systems, prioritizing solar-generated electricity for household and business appliances. Any surplus electricity is fed back into the national grid. On-Grid inverters, along with grid-tied solar systems, have lower initial investment costs but cannot operate during grid outages or at night.

Off-Grid Inverter: Applied in independent solar power systems not connected to the grid. These systems do not rely on the grid and store excess solar-generated electricity in batteries to power electrical appliances. They are suitable for areas without grid access, such as remote islands.

Hybrid Inverter: Used in solar power systems with storage, combining features of both On-Grid and Off-Grid inverters. The Hybrid Inverter converts DC to AC for consumption and charging batteries. During grid outages, it utilizes stored energy in batteries or lithium storage to power priority loads.

2. Operating principles of hybrid inverter systems

• Hybrid solar storage systems prioritize solar power for essential household loads while simultaneously charging lithium batteries.
• If there is excess solar power, it is fed back to the grid for other uses.
• In case of solar power shortage, the system uses stored energy from batteries to power priority loads, and if necessary, it switches to grid power.
• Trong trường hợp mất điện, hệ thống sử dụng năng lượng mặt trời và điện từ pin lưu trữ để cung cấp cho các thiết bị tải ưu tiên, duy trì nguồn điện liên tục và ổn định.

3. Why use hybrid inverter systems?

Hybrid energy storage solutions, combining lithium battery storage, ensure a continuous and stable power supply for critical devices such as surveillance cameras, refrigerators, freezers, computer systems, Wi-Fi, fire alarm systems, electric garage doors, and Koi fish ponds. Additionally, excess solar power generated during the day can be stored for nighttime or blackout use.

Hybrid inverters offer various operating modes, such as prioritizing battery power usage, using solar power to charge batteries, or setting maximum discharge levels for batteries.

Hybrid solar storage systems are suitable for households, data centers, telecommunication relay stations, hospitals, server systems, banks, and manufacturing plants.

4. Advantages and disadvantages of hybrid inverter systems

+ Advantages:

• Maintain a stable power supply 24/7: Hybrid systems store solar power in batteries, ensuring continuous operation of essential devices even during grid outages. The transition to backup mode is nearly instantaneous, resulting in minimal interruptions.
• Maximize solar power usage: During the day, any unused solar power is stored in batteries for nighttime or grid outage use, preventing loss of solar energy and optimizing solar power usage.
• Grid independence: With backup batteries, the system is less dependent on the national grid, allowing efficient power management. In case of power outages, devices continue to operate normally.

• Cost-effective electricity savings: With flexible energy transfer mechanisms, the system can be configured to charge batteries during off-peak hours and discharge during peak hours. This helps customers with time-of-use electricity pricing to save on electricity costs.
• Giảm ô nhiễm tiếng ồn, an toàn cho môi trường: Hệ thống điện mặt trời Hybrid vận hành theo cơ chế tự động, yên tĩnh không gây tiếng ồn như máy phát điện, không sử dụng nhiên liệu xăng, dầu… thân thiện cho môi trường.

+ Disadvantages:

Initial investment cost: Some may be concerned about the initial cost of Hybrid systems, which is higher than other solar power system types. Batteries and storage devices often contribute to increased upfront costs. Therefore, Hybrid solutions may be more suitable for small-scale installations, such as residential homes and offices, to optimize costs.

However, advancements in science, technology, and sustainable practices are gradually reducing the cost of energy storage products. This makes the decision to invest in Hybrid solar power systems quicker and easier.

It is important to note that system capacity depends on load requirements and backup time. Therefore, to ensure the system meets the demands of household appliances and maintains stable operation during grid outages, a professional and knowledgeable supplier of Hybrid energy storage solutions should conduct a thorough assessment and consultation.

Hybrid inverters have multiple functions and require accurate parameter settings. Thus, professional installation and commissioning by experts familiar with the technology are necessary.

5. Differences between on-grid and hybrid inverters

For grid-tied solar systems using On-Grid inverters, the system automatically shuts down during power outages to ensure the safety of maintenance personnel working on the grid.

On the other hand, solar systems with storage using Hybrid inverters can continue to power priority loads during grid outages, providing continuous and uninterrupted operation for essential devices. When grid power is restored, the system returns to normal operation.

6. Choose efficient hybrid energy storage solutions – Choose DAT Solar

For over 17 years, DAT Solar has been dedicated to developing a comprehensive ecosystem, carefully selecting globally renowned products, and researching solutions to enhance efficiency for solar energy customers, partners, and investors in renewable energy.

In particular, for Hybrid energy storage solutions, DAT Solar’s team of solar experts and engineers conducts assessments and consultations to understand load parameters, existing electrical system structures, backup power needs for critical loads, and usage duration. This enables them to recommend and design suitable Hybrid solar storage systems that efficiently manage power sources, ensuring a continuous supply for priority loads and other devices in households.

Therefore, do not hesitate to install Hybrid solar power systems with DAT Solar. For further advice on Hybrid solutions, contact the hotline at 1800 6567 (free of charge), and we are ready to assist you 24/7.