Send Inquiry

    The Purpose of Contacting Us?

    Which Product did You interest in?*

    • Phone: 86-755-86670609
    • WhatsApp: +8618774909367
    • Email: info@pknergypower.com
    • Skype: Pknergy Power
    • High-Tech Enterprise by the Chinese Government
    PKNERGY
    • Residential
      • Server Rack Battery Portable Power Station Powerwall ALL IN ONE Battery Solar Inverter
        PK-51.2V-200Ah-S
        PK-51.2V-100Ah
        PK-51.2V-200Ah-E
        PK-51.2V-300Ah
        PK-51100
        PK-51.2V-100/200Ah
        LiFePO4 Rack Battery Cabinet
        PK-512V-100Ah-R
        PK-51.2V-300Ah-P
        PK-51.2V-300Ah
        PK-PPS51265
        PK-51.2V-10kwh
        PK-AIO-20kwh
        PK-6000-HES
        PK-11000-HES
      • hide
      • hide
      • hide
      • hide
    • COMMERCIAL
      • //
        Battery Modules + PCS Energy Storage System Liquid-cooling BESS (CATL Cell)
        100kWh~3MWh BESS Solution
        Outdoor 200kWh Commercial Solar Battery
        100kwh Energy Storage Battery (Air-cooling)
        500Kwh BESS
        1MWH BESS
        232kWh/261kWh CATL Cell BESS
        1836kWh CATL Cell BESS
      • hide
      • hide
      • hide
      • hide
      • hide
    • Projects
    • Solutions
      • Home Energy Solutions
      • Data Center Energy Solutions
      • Farm Energy Solutions
      • Communication Base Station Energy Solutions
      • Hotel Energy Solutions
      • Industrial Parks Energy Solutions
      • Campsites Energy Solutions
      • Villa Energy Solutions
    • PKNERGY
      • Company Profile
      • Factory Show
      • Events
    • Service
      • OEM Service
      • Download
      • Warranty Service
      • FAQs
    • Discover
      • News
      • Video
      • Energy Glossary
      • Discount Promotion
      • Iraq-partner with Pkenrgy
    • Contact
      • Become a Distributor
    • Search
    • Menu Menu
    • Home
    • Products
      • LiFePO4 Solar Battery
      • Commercial Solar Battery
    • Residential
      • Residential
      • Server Rack Battery
      • Powerwall
      • Portable Power Station
      • All In One ESS
    • Commercial
    • Projects
    • Solutions
      • Data Center Energy Solutions
      • Farm Energy Solutions
      • Hotel Energy Solutions
      • Industrial Parks Energy Solutions
      • Villa Energy Solutions
      • Campsites Energy Solutions
      • Communication Base Station Energy Solutions
      • Home Energy Solutions
    • PKNERGY
      • Company Profile
      • Factory Show
      • Events
    • Service
      • OEM Service
      • Download
      • Warranty Service
      • FAQs
    • Discover
      • News
      • Video
      • Energy Glossary
      • Discount Promotion
      • Iraq-Partner with Pkenrgy
    • Contact Us
      • Become a Distributor
    You are here: Home1 / News2 / Do I need storage batteries for my solar system?

    Do I need storage batteries for my solar system?

    According to the “U.S. Solar Market Insight 2023 Year-in-Review” report released by SEIA and Wood Mackenize, the United States installed 32.4 GW of solar energy in 2023. Perhaps people would not have thought that solar energy systems would become so popular so quickly.

    There is no doubt that solar power systems have given us a lot of convenience. Compare your bills and see if it has saved you thousands of dollars? A home that has installed enough solar panels can get electricity to power the entire house without worrying about spending a penny during a sunny day.

    But the sky needs rain, and the sun will rest. When night falls, the power of the solar system will decline and can no longer provide any energy. To maintain the necessary appliances, refrigerators, lights or ovens. We still need to pay for the next dozen hours of electricity. And what’s worse is the night when there is a power outage.

    Can I do something to make my solar system more reliable? Storage battery eliminate these difficulties and provide you with a reliable energy storage system for cloudy days and nights.

    What is a solar energy storage battery?

    A solar energy storage battery is a device that converts solar energy into electrical energy and stores it. Its working principle is based on electrochemical reactions, by converting the electrical energy generated by solar panels into chemical energy and storing it in batteries. When solar panels cannot directly provide electrical energy to the load (such as at night or in cloudy weather), the energy storage battery will release the stored energy to ensure a continuous supply of energy.

    only solar system-Do I need storage batteries for my solar system

    Is it best to have battery storage for solar panels?

    In a survey of respondents who installed solar, 48% of homeowners purchased solar panels along with solar panels. But energy storage batteries are not necessary for solar systems. Batteries can store excess energy generated by solar panels and continue to be used by you at night. Solar energy without batteries can only work for the family during the day, while batteries can make more comprehensive use of solar energy.

    The energy source of energy storage batteries must be not only through solar panels. In addition, batteries can be charged from the grid. If your area adopts a peak electricity price policy, you can choose to fully charge the battery at the lowest price time and then release it when needed. Like an enlarged mobile phone power bank.

    difference between solar and solar with battery storage

    Solar Only

    1. Operation and Cost Savings:

    How It Works: A traditional solar system converts sunlight into electricity using photovoltaic (PV) panels. This electricity is used to power your home.

    Cost Savings: Homeowners can benefit from reduced electricity bills and potential net metering credits.

    1. Limitations:

    No Energy at Night: Without sunlight, solar panels do not generate electricity. This means that during the night or on very cloudy days, you will still rely on grid power.

    Grid Dependence: During power outages, a solar-only system will not provide electricity as it shuts down to protect utility workers.

    Solar with Battery Storage

    1. Operation and Energy Independence:

    How It Works: In addition to PV panels, a solar system with battery storage includes batteries that store excess energy generated during the day. This stored energy can be used at night or during power outages.

    Energy Independence: Provides greater energy security by ensuring a continuous power supply even when the grid is down or during peak demand times when electricity rates are higher.

    1. Benefits:

    Backup Power: Battery storage systems offer backup power during outages, ensuring critical appliances and systems remain operational.

    Maximized Renewable Energy Use: Stored energy can be used during non-sunny periods, increasing the use of renewable energy and reducing reliance on the grid.

    Peak Shaving: By using stored energy during peak demand times, homeowners can avoid high electricity rates, further reducing energy costs.

    Key Differences Between Solar and Solar with Battery Storage

    The primary distinctions between solar-only systems and those with battery storage lie in cost, energy management, and environmental impact. Solar-only systems are generally cheaper to install as they require fewer components. However, solar systems with battery storage involve a higher initial investment due to the cost of batteries and additional installation, but they offer long-term savings and energy security by providing a more consistent and reliable power supply.

    In terms of energy management, solar-only systems directly use solar energy when available and rely on the grid for backup, while solar with battery storage can store excess energy for later use. Environmentally, solar-only systems reduce the carbon footprint by using renewable energy during the day, but those with battery storage further diminish reliance on fossil fuels by allowing the use of solar energy around the clock.

    Which Battery is Better for Solar?

    Choosing the right battery for a solar energy system is crucial for optimizing performance, reliability, and cost-effectiveness. Several battery types are commonly used in solar applications, each with its advantages and disadvantages. The most popular choices are Lithium Iron Phosphate (LiFePO4) battery and lead-acid batteries, with emerging interest in other technologies such as sodium-ion batteries.

    Battery Comparison: LiFePO4, Lead-Acid, and Sodium-Ion Batteries

    Type of Battery Advantages Disadvantages
    Lithium Iron Phosphate (LiFePO4) Batteries
    • Long Lifespan: Typically last 10-15 years, with a high cycle life of up to 4,000-5,000 cycles, making them cost-effective in the long run.
    • High Efficiency: High charge and discharge efficiency, typically around 95%, ensuring more usable stored energy.
    • Safety: Highly stable and less prone to thermal runaway, reducing the risk of fires.
    • Weight and Size: Lighter and more compact compared to lead-acid batteries, simplifying installation and reducing space requirements.
    • Higher Initial Cost: More expensive upfront compared to lead-acid batteries.
    Lead-Acid Batteries (Flooded, AGM, Gel)
    • Lower Initial Cost: Generally cheaper than lithium batteries, making them accessible for many homeowners.
    • Proven Technology: Widely used and well-understood, with robust support infrastructure.
    • Shorter Lifespan: Typically last 3-5 years, requiring more frequent replacements.
    • Lower Efficiency: Charge and discharge efficiency is around 70-80%, meaning more energy is lost during the storage process.
    • Maintenance: Flooded lead-acid batteries require regular maintenance, such as water refilling.
    • Weight and Size: Bulkier and heavier, making installation more challenging.
    Sodium-Ion Batteries
    • Abundance and Cost: Sodium is more abundant and less expensive than lithium, potentially reducing costs.
    • Safety: Lower risk of thermal runaway compared to some lithium chemistries.
    • Lower Energy Density: Currently have a lower energy density compared to lithium-ion batteries, requiring more space to store the same amount of energy.
    • Market Maturity: Still in the early stages of development and commercialization, with less infrastructure and fewer proven applications compared to lithium and lead-acid batteries.

    The choice of battery for a solar system depends on the specific needs and constraints of the user. For long-term investment and minimal maintenance, LiFePO4 batteries are the superior choice. For budget-conscious installations, lead-acid batteries may be appropriate, while sodium-ion batteries could become a strong contender as the technology matures.

    Conclusion

    Choosing between a traditional solar system and one with battery storage depends on your specific needs and priorities. If you seek lower upfront costs and are comfortable relying on the grid during non-sunny periods, a solar-only system might be sufficient.

    However, if you value energy independence, backup power, and maximizing your use of renewable energy, integrating battery storage into your solar system is a worthwhile investment.

    Contact Us

    Longhua District, Shenzhen, China

    86-755-86670609

    +8618774909367

    info@pknergypower.com

    Pknergy Power

    Products

    Powerwall
    Server Rack Battery
    Comercial&Utility

    Projects

    Residential Cases
    Commercial Cases
    Other ESS Cases

     

    About PKNERGY

    Company Profile
    Factory Show
    Events

    Service

    Download
    OEM Service
    Warranty Service
    FAQs
    • Facebook
    • X
    • linkedin
    • Youtube
    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
    Copyright @ Shenzhen Pknergy Energy Co., Ltd | All Rights Reserved
    How to Install a Rack Mount Battery (High Voltage Version)PKNERGY Rack Mount Battery InstallationCan I have battery backup without solar - PKNERGYCan I have battery backup without solar?
    Scroll to top
    en_USEN
    en_USEN es_ESES de_DEDE pt_PTPT arAR ckbKU id_IDID ru_RURU sl_SISL ko_KRKO fr_FRFR it_ITIT bg_BGBG nl_BENL cs_CZCS

    Act now-receive free battery and inverter samples with your order!

      The Purpose of Contacting Us?

      Which Product did You interest in?*

      Countact us

        The Purpose of Contacting Us?

        Which Product did You interest in?*

        Contact us

          The Purpose of Contacting Us?

          Which Product did You interest in?

            The Purpose of Contacting Us?

            Your preferred payment method?*

            This is a free reservation form, we will confirm your order via email.

            Thanks!

            Thank you for your email and we will get back to you as soon as possible!

            PKNERGY LOGO

            Hit enter to search or ESC to close