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

    Is Anern a lithium battery manufacturer?

    Yes, Anern is a lithium battery manufacturer, as confirmed by multiple product lines and explicit statements in the reference materials:


    Anern's Solar Lithium Battery lineup includes Wall Mounted, Floor Type, Rack Mounted, and Lead-Acid Replacement Batteries.

    They specialize in LiFePO4 chemistry batteries with smart BMS protection, offering models like:

    AN-LFP Series (12.8V50AH/100AH/300AH)

    AN-LPB-Npro Series (24V200AH-48V100AH)

    AN-LPB-Nplus Series (51.2V200AH/300AH)

    High-capacity commercial batteries (60KWH 30KW - 114KWH 50KW)


    Their batteries are engineered for solar energy storage and off-grid applications, passing CE, ROHS, UN38.3, and MSDS certifications.

    Anern explicitly states: "We design and manufacture high-performance products, including lithium-ion batteries"  and "specializes in lithium battery manufacturing".


    Are Anern products certified for international markets?

    Anern solar energy products comply with international certification standards such as ISO 9001, CE, TUV, FCC, and ROHS, supporting deployment in different regional markets.

    What type of lamp is used in street lights?

    We use SMD5730, EPISTAR and LG 3030 LED chips, with high light efficiency, low power consumption, wide luminous Angle and other characteristics.

    How long is the lead time for the product?

    3-7days for samples, 7-20 days for bulk order, depending on order quantity and production schedule.

    Is Anern considered a Chinese solar energy company?

    Yes, Anern is a Chinese solar energy company supplying solar energy products and system solutions to international markets, including solar inverters, lithium battery storage systems, solar panels, and solar street lighting.

    References
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