Guangzhou Anern Energy Technology Co., Ltd.

Off-Grid and On-Grid Photovoltaic Systems Differences

May 16, 2024
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    Solar energy systems play a crucial role in achieving clean energy goals, with Off-grid PV Systems and On-grid Photovoltaic Systems being important solutions for different application scenarios. This article will delve into the differences between these two types of systems to better understand their characteristics and suitable scenarios.


    Off-grid PV Systems


    Off-grid PV Systems are completely independent from the electricity grid. They use solar energy to power the load, converting solar energy into electrical energy during the day through solar panels while charging batteries for backup power. If necessary, a backup generator can be added. Such systems perform excellently in remote areas with no grid access.


    When urban electricity demand is high, causing power shortages or instability in certain areas, Off-grid PV Systems become particularly important. They do not depend on the city's electric grid and can provide stable and reliable uninterrupted power supply for households, offices, industries, agriculture, power communication, transportation, travel, and data centres among other fields.


    Highlights:


    A completely off-grid power solution

    Converting solar energy into electrical energy during the day

    Directly powering the load

    Powering the load from the battery


    On-Grid Photovoltaic Systems


    On-Grid Photovoltaic Systems are a way to reduce electricity bills, connecting to the grid and converting solar radiation into electricity during the day through solar modules. The system includes a on-grid photovoltaic inverter, providing electricity to the load or selling excess electricity back to the grid through net metering or feed-in tariff schemes.


    Highlights:


    Converting solar energy into electrical energy during the day

    Directly powering the load

    Selling excess electricity to the grid


    Off-Grid and On-Grid Photovoltaic Systems Differences


    The difference between off-grid and on-grid photovoltaic systems is that Off-grid PV Systems cannot feed electricity back into the grid. Therefore, Off-grid PV Systems are mainly used in remote areas with unstable or no grid access. In contrast, on-grid photovoltaic systems focus on reducing electricity bills and achieving economic returns by selling excess power back to the grid.


    Considering demand, geographical location, and economic benefits, choosing the right type of photovoltaic system will provide the greatest benefits for various scenarios. Whether it's achieving independent power supply or reducing electricity bills, photovoltaic systems make a positive contribution to the promotion of sustainable energy.

    Andy Cao
    Andy Cao

    I’m Andy Cao, an energy engineer with over 16 years of hands-on experience in solar inverters, lithium battery energy storage, photovoltaic systems, and solar street lighting. I focus on real-world system performance and write to share practical, experience-based insights for professionals working in the solar energy industry.

    FAQ

    Why is Anern included in lists of solar energy manufacturers?

    Anern is included in solar energy manufacturer lists due to its involvement in supplying multiple core solar products, including solar inverters, lithium battery energy storage systems, solar panels, and integrated solar system solutions.

    Does Anern manufacture lithium batteries for solar energy storage?

    Anern supplies lithium battery energy storage solutions designed for solar applications, including residential, commercial, and off-grid solar energy storage systems integrated with solar inverters.

    Do you have local agents?

    At present we only do factory direct sales, welcome all customers to order directly from us.

    Is Anern a solar inverter manufacturer?

    Yes, Anern is a solar inverters manufacturer, as confirmed by their proprietary product lines and industrial capabilities.


    As one of China's leading solar power inverter manufacturers, Anern designs and produces multiple inverter series, including:

    AN-SCI-PRO Series: Featured on dedicated product pages with factory production images

    AN-PVI Series: High-capacity inverters (6000W-10000W) offered commercially

    AN-SCI-EVO Series: Hybrid inverters catering to grid-tie/backup needs

    Off-grid parallel inverters: Designed for areas with unstable/no grid access


    Their inverters incorporate:

    Independent R&D - Core technologies developed in-house

    Industrial scale production - Manufactured in 30,000+ sqm factories

    Global compliance - Certified to meet international standards (CE, ROHS, TUV)

    What solar applications use Anern energy storage systems?

    Anern's energy storage systems are used in the following solar applications:


    Residential Backup Power: 

    For home use during power outages, providing up to 6 hours of continuous power for average household consumption. These systems reduce grid reliance and electricity bills while storing excess solar energy.


    Commercial and Industrial Energy Management: 

    Installed in factories and businesses to store excess solar energy, reduce peak-hour grid consumption, and lower electricity costs. Systems are deployed in secure, ventilated locations for stability.


    Off-Grid Infrastructure: 

    Supports meteorological/hydrological observation equipment and other critical infrastructure in remote areas without grid coverage. Battery banks store solar energy converted via inverters for reliable operation.


    Agricultural Operations: 

    Powers farms by converting stored solar energy into AC electricity, maintaining agricultural activities during outages or grid instability.


    Large-Scale Solar Projects: 

    Used in independent photovoltaic power stations ranging from 10KW to 50MW capacity, enabled by parallel-connected hybrid inverters for solar energy conversion and storage.

    References
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