The main difference between an off-grid inverter and a grid-connected inverter lies in their connection to the power supply and their use within the context of a solar power system:

Off-Grid Inverter:

An off-grid inverter is used in standalone solar power systems that are not connected to the utility grid. These systems are typically found in remote locations or areas where access to the grid is limited. The primary function of an off-grid inverter is to convert the DC (direct current) electricity generated by solar panels into AC (alternating current) electricity that can be used to power household appliances and devices. In addition to this conversion, off-grid inverters also have the following features:

Battery Charging: Off-grid systems usually include battery storage to store excess energy generated during sunny periods for use during cloudy days or at night. The inverter manages the charging and discharging of these batteries.

Voltage Regulation: Off-grid inverters often need to handle fluctuations in solar panel voltage and battery voltage to ensure consistent output voltage for household use.

Isolation: Off-grid inverters are designed to operate independently from the utility grid and do not synchronize with the grid's frequency or voltage.

Grid-Connected Inverter:

A grid-connected inverter, as the name suggests, is used in solar power systems that are connected to the utility grid. These systems are more common in urban and suburban areas where a reliable grid connection is available. Grid-connected inverters serve the purpose of converting the DC electricity generated by solar panels into AC electricity that can be used within the household. However, there are several key distinctions:

Grid Synchronization: Grid-connected inverters are designed to synchronize with the frequency and voltage of the utility grid. This allows them to inject excess energy back into the grid when the solar system generates more electricity than the household needs.

No Energy Storage: Unlike off-grid systems, grid-connected systems generally do not include battery storage. Instead, any excess electricity generated by the solar panels can be fed back into the grid, often earning credit or compensation from the utility company.

Net Metering: In grid-connected systems, net metering is a common practice where the electricity meter can run backward when the solar panels produce more energy than the household consumes. This effectively offsets the electricity consumed from the grid when the panels produce less energy, providing cost savings.

In summary, the main distinction between off-grid and grid-connected inverters is their connection to the grid and the presence of energy storage. Off-grid inverters are used in systems with energy storage for standalone operation, while grid-connected inverters synchronize with the grid and allow excess energy to be fed back into the grid, often without the need for batteries.

SUNPOK Off-Grid Off-Grid Inverter

Sunpok 5Kw single-phase high-frequency off-grid inverter is suitable for areas without power, nomadic areas, communication base stations, areas with unstable power, islands, border posts, scenic management offices, newsstands, battery packs for battery manufacturers, etc. Equipped with LED display, supports USB/RS232/RS485/Bluetooth/Dry-contact, compact design, and high-cost performance.

Features

Efficient power generation with higher income:

1.5 times overload output (200ms), resist the impact of instantaneous load

Wide voltage input range, early start and late stop, longer lasting power generation

Photovoltaic controller power upgrade can be connected to 5kW

MPPT has a wide voltage range and can adapt to various crystalline silicon components

Support mains bypass fast charging

Intelligent protection, simple operation, and maintenance:

Various gear charging voltages, adaptable to different batteries

Multiple working modes: photovoltaic priority/mains power priority/battery priority

LCD can be externally introduced to meet the monitoring needs of different customers

Non-linear loads can be connected

Safe and reliable, comprehensive peace of mind:

Diverse communication methods, support USB/RS232/RS485/Bluetooth/dry contact

Smart battery charger design to optimize battery performance

Mobile phone/computer intelligent monitoring, more convenient operation anytime and anywhere


FAQ

Question 1: What is the lead time?
Answer 1: We can deliver within 3-15 days.

Question 2: What is the warranty period, and how many years?
Answer 2: The warranty period for inverter is 2-5 years.

Question 3: How is your technical support?
Answer 3: We provide lifetime online support through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you a video call anytime, our engineer will also go to overseas help our customers if necessary.

Question 4: How to become your agent?
Answer 4: Contact us through the website, email, or phone, and we can talk about details to confirm.

Question 5: Is the sample available and free?
Answer 5: The sample will be charged a cost, but the cost will be refunded after the bulk order.

Question 6: Do you support OEM/ODM?
Answer 6: Of course, we can do customized services for our partners.

If you have other questions, please add the contact information of our sales manager to understand, thank you!

Guangzhou sunpok energy co., ltd. is a high-tech enterprise integrating battery research and development, design, and production. It was registered in Guangzhou, China in 2016.

After more than years of development, sunpok energy has become a leader in China's energy storage industry, vertically integrated upstream and downstream supply chain resources, continuously optimized the company's product matrix, improved product performance, and won praise from customers at home and abroad.

The products of sunpok energy have been sold all over the world, bringing green energy to more than 20,000 families and units. At present, the products of sunpok energy mainly include:

1. Energy Storage Lithium Battery

2. 48V Lithium Ion Battery

3. Lithium Portable Power Station

4. All In One ESS

5. Complete Off Grid Solar System

6. Hybrid Solar System Kit

7. Wind Solar Hybrid Power System

8. Off Grid Inverter

9. Deep Cycle Lithium Battery

10. 12V Gel Battery

11. Mono PV Panels

12. Residential Wind Turbine

Mutual benefit and win-win results have always been the tenet of Sunpok Energy. In the future, sunpok energy will work with partners to scale new heights with a more inclusive attitude.