Solar battery

The Ultimate Guide to Solar Panels with Battery Storage for Homeowners

Solar panels with battery storage are a revolutionary approach to sustainable energy at home. The process is fairly simple. Solar panels capture sunlight and convert it into electricity. A home solar battery stores any excess energy your panels generate during sunny periods for later use, such as during the night or cloudy days. This dual capability reduces your reliance on the grid, saves you money and ensures that you have a consistent power supply. In this article, we explore the basics of solar panels and battery storage so you can decide if it’s the right move for you.

Sustainable energy storage

Unlock the full potential of solar energy

To set up a no-obligation consultation, we ask you to leave your details so we can contact you. Solar batteries are an extension to your system and a sustainable development in which storage plays a central role. Are you ready to unlock the full potential of solar energy? Our consultation will give you:

  • Advantages of adding battery storage with your solar panels
  • How to choose the right solar battery for you
  • A free, no-obligation quote on a high quality solar battery

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    What to expect from the Ultimate Guide to Solar Panel with Battery Storage.

    ✔ Advantadges of adding a battery to your solar solution.

    ✔  Maximising battery efficiency. 

    ✔ Solar battery installation guide. 

    Understanding the Basics of Solar Panel with Battery Storage

    Solar Battery Storage for Off-Grid Living 

    In an off-grid setup, solar battery storage plays a key role in ensuring your energy independence. When you aren’t connected to the National Grid, an off-grid setup relies solely on the energy you generate on-site. Solar batteriesprovide a means to store surplus energy, ensuring a consistent power supply during periods of low or no solar generation, such as at night or during cloudy days.

    Is Battery Storage for Solar Panels Beneficial?

    UK homeowners are choosing solar battery storage alongside solar panels, driven by the desire for energy independence and an uninterrupted power supply. By storing excess solar battery power during peak production times, homeowners can harness this power during periods of low sunlight or grid outages, ensuring a steady and reliable source of electricity. The environmental impact is also substantial. With battery storage, you can maximise your solar investment, reducing your reliance on conventional power sources and, subsequently, your carbon footprint. 

    Statistics show significant energy savings for solar battery setups, as stored solar power means you’re less reliant on grid power during peak demand hours (when it’s most expensive). This means you’re able to lower utility bills and, over time, achieve a positive return on the initial investment. 

    Benefits of Energy Independence

    When you can generate and store your own electricity using panels and battery storage, you always have reliable power, even during power outages or grid failures. Being self-sufficient with battery backup power can give you peace of mind and security that energy is available when you need it.

    The Advantages of Adding Battery Storage to Your Solar Panels

    Adding a solar battery to your solar panels improves the overall efficiency and reliability of the energy system. Storing excess energy generated during sunny periods reduces waste and makes your system more efficient. Your battery backup system provides reliable backup power during periods of low sunlight enhancing the resilience of the system.

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    With Battery Storage

    • Flexible energy usage

    • Optimise Energy Consumption

    • Draw and Store Off Peak

    • Store Solar Energy Produced

    • Increase Property value

    • Reduce energy bills

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    No Battery Storage

    • Flexible energy usage

    • Optimise Energy Consumption

    • Draw and Store Off Peak

    • Easily Recyclable

    • Store Solar Energy Produced

    • Increase Property value

    • Reduce energy bills


    of Solar Battery Storage

    The return on investment (ROI) for solar battery can be measured through your energy savings over time. Government incentives, such as the 0% VAT on solar panels and batteries make choosing sustainable energy solutions more affordable. Solar systems are always a fantastic investment as you’re guaranteed to make your money back.

    Evaluating If Solar Battery Storage Is Worth the Investment

    While the initial investment for purchasing and installing a solar battery storage system is significant, the potential for long-term savings is too. By storing excess solar energy, you can avoid relying on the grid during peak hours, lowering your electricity bills over time. As technology advances and economies of scale come into play, the overall cost of storage systems is expected to become even more cost-effective. On average, UK homeowners are able to make their money back in as little as eight years. After this point, all the energy you generate is savings in your pocket.

    Financial Incentives for Solar Battery Storage

    Here are some of the current financial incentives that can reduce the initial cost:

    • The Energy Company Obligation Scheme (ECO4): ECO4 is a government initiative that provides funding for energy efficiency improvements in low-income households. While not specific to solar battery storage, it may support overall energy efficiency measures in a home. 
    • Smart Export Guarantee (SEG): This UK government scheme pays you for the excess electricity you generate and feed back to the grid. While it’s not a direct incentive for battery storage, it complements solar panels and storage by offering compensation for surplus energy.
    • Home Upgrade Grant: This scheme provides grants that fund the free installation of home energy efficiency measures in low-income households.
    • 0% VAT Incentive: In the UK, energy-saving materials and installations, including solar battery storage, qualify for a 0% VAT rate until 2027.

    To qualify for these incentives, you typically need to meet certain criteria, such as owning your own home and meeting certain income thresholds. 

    Cost Breakdown: Solar Battery Storage System Expenses*

    Here are some of the general costs associated with solar battery storage systems:

    • Solar panels: An array of solar panels can cost anywhere from £5,000 to £11,000, including installation. The cost varies depending on type, capacity and quality of the panel.
    • Solar batteries: The price of a home battery storage system can range from £1,500 to £7,000, depending on the type, quality and lifespan of the battery.
    • Installation: Install costs include labour, which can range from £300 to £500 per person per day or 20 pence per watt. As installations usually requires a minimum of two people, you can assume £600 to £1,000 per day, or if using the watt calculation, £600 for a 3kWh system (20 pence x 3,000 watts).
    • Maintenance: Homeowners can expect to pay £400 to £1500 per solar panel. Replacing the microinverter every 25 years can cost £800 to £1,000 per inverter, and the solar battery could range from £1,200 to £7,000 every 15 years. 


    Detailed Cost Analysis of a Solar System with Battery*

    Here is a detailed cost analysis of the average cost for a house that uses 30kWh per day and has a 10kW solar system with solar battery banks:

      • Solar panels: Starting from £10,000 for 10 panel  system. 
      • Solar battery systems: From £1,500 to £7,000 depending on storage
      • Installation: Estimated at £2,000 excluding VAT (working off £0.2p per watt).*Note: this may vary depending on the roof characteristics.
      • Maintenance: From £100 to £300 per year.
    • Average annual energy cost savings: £900 per year.

    *Note: Prices are estimated and may vary depending on the charachterisitcs of the installation, seasonal demand, number of roofs receiving installation, if panels are done in one direction or various. Please consult with your energy expert at Soly for the best solution for you. 

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      Calculating the Return on Investment for Solar Batteries

      Here’s a step-by-step guide for calculating the return on investment (ROI) for solar batteries:

      • Estimate upfront costs associated with solar battery storage, including the cost of the battery, inverters, installation and any additional equipment.
      • Estimate your annual savings on electricity bills. Consider the energy generated and stored during peak sunlight hours.
      • Explore incentives, rebates and tax credits for solar energy storage.
      • Determine the number of years and charge cycles the battery is expected to last.
      • Factor in maintenance costs over the lifespan of the solar power batteries.
      • Calculate the ROI and payback period by dividing the total savings over the system’s lifespan by the initial investment to determine the ROI.
      • Calculate the payback period, which indicates how many years for the savings to pay off the initial investment.

      Solar battery installation involves large upfront costs. However, these short-term expenses are outweighed by the substantial and continuous long-term savings. Home solar battery systems provide energy independence and less reliance on the grid.

      Use our ROI calculator to estimate the savings from your solar battery investment.

      How to Choose the Right Solar Batteries for Your Home

      The size of the battery you need for your home depends on your energy consumption and the types of solar panels you have. On average, a UK household with solar installed will need a 5 or 10 kWh home battery. For comparison, we have represented the capacity of  battery storage for a UK household based on average annual energy consumption:

      Selecting the Optimal Solar Batteries for Residential Use

      Here are some factors to consider when choosing solar power batteries for your home: 

        Usage Patterns: Determine your daily and seasonal energy consumption. Identify peak usage and any appliances or systems using more energy. 

        Capacity: Choose solar batteries that can handle your daily energy usage. For example, for a household of 2 you would need a battery with a capacity of 5kWh

        Life Cycle and Warranty: Look for batteries with a high cycle life and check the warranty period as it often reflects the manufacturer’s confidence in the product’s durability.

      Compatibility: Ensure that the solar battery is compatible with your existing or planned solar PV system and inverters. To discover more ask your Soly Energy expert

      Understanding Solar Battery Lifespan

      The lifespan of solar batteries depends on the depth of discharge (DoD), the depth to which a battery is regularly discharged and recharged. Deeper discharges put more strain on the battery. To maximise the lifespan of your home energy storage system, avoid discharging a battery to its full capacity. Lithium-ion batteries tend to benefit from shallower discharges. 

      Extreme temperature, both high and low, can affect battery performance and longevity. However, Enphases IQ battery  withstands extreme temperatures, making this an optimal option for the British winters weather and warmer summers. Moreover the warranty covers for 15 years 

      Installation and Maintenance of Solar Battery Storage Systems

      Installing battery storage involves mounting solar panels (if relevant) and brackets to connect the battery to the solar inverter and electrical panel. The commissioning phase involves meticulous testing, and integrating battery monitoring systems to track energy production, consumption and battery status. Regular monitoring and checking for any damage or leaks is essential for optimal performance. Ensure the battery is kept at optimal temperature, discharged according to manufacturer guidelines and schedule regular professional inspections to ensure that the solar battery system operates efficiently and reliably over the lifespan.


      The Future of Home Energy Storage

      Emerging technologies and trends in the solar battery storage market are shaping a more dynamic and efficient future for homeowners. Upgrades in lithium-ion battery chemistry, including solid-state storage battery systems, promise higher energy density and longer lifespans for better efficiency. Innovations in battery management systems enhance performance monitoring and optimise charging cycles, while advanced materials, such as silicon anodes, may potentially boost the energy storage capacity. 

      Artificial intelligence and machine learning are also optimising battery usage and prolonging their lifespan. As manufacturing processes evolve and economies of scale come into play, costs are expected to drop, while modular and scalable designs for home energy  storage allow for complete customisation. These advancements ensure that solar storage systems become more efficient and cost-effective but also more accessible to homeowners with different needs.

      Maintaining Your Solar Battery System for Maximum Efficiency

      Routine maintenance, such as inspections and cleaning, is key for ensuring the longevity and efficiency of your battery. To troubleshoot common issues, such as sudden drops in capacity or abnormal temperature readings, check connections and consult the manufacturer’s guidelines or contact Soly. Always schedule professional maintenance services if you have persistent issues, complex technical problems or for regular comprehensive inspections. Professional expertise ensures that any potential issues are addressed proactively, preserving the efficiency and longevity of the home energy storage battery.

      Maximising Solar Battery Efficiency

      Here’s how to keep your solar batteries at optimal levels to ensure longevity and efficiency:

      • Protect from Harsh Conditions: Protect the system from environmental factors that could impact its performance. 
      • Adhere to Recommended DoD: Follow the manufacturer’s recommendations on depth of discharge. Maintaining optimal DoD levels contributes to prolonging the battery’s lifespan. 
      • Use Monitoring Systems: Leverage monitoring tools provided by the manufacturer to regularly check the performance of the solar storage system. 
      • Stay Updated: Regularly update firmware and software to access the latest features and optimisations provided by the manufacturer.

        Check for Signs of Wear: Inspect the battery and its components for signs of damage, corrosion or leaks. Clean to remove dust and debris to maintain optimal ventilation and cooling.

        Schedule Periodic Inspections: Arrange for professional inspections at regular intervals to ensure all components are functioning correctly. 

      Step-by-Step Solar Battery Installation Guide

      Here is a step by step guide for solar battery installation with Soly:

      • Obtain Necessary Permits: Soly Obtains permits and approvals from local authorities to ensure compliance.
      • Battery Selection: Choose a battery system that aligns with your energy needs, considering factors like capacity, depth of discharge and compatibility with your solar PV system.
      • Installation Plan: Soly will organise and schedule your installations according to your preferred dates. Scaffolding and installation costs are all included in your quote.
      • Connection: Connection of the battery to the  microinverters and electrical panel.
      • Configuration and Testing: Soly’s installers will help and explain. They will configure your settings and conduct rigorous testing to ensure the system operates correctly.
      • Monitoring: Integrate monitoring systems to track energy production, consumption and battery status.


      Installing a home battery requires technical skills and knowledge. Handling electrical components without expertise poses safety risks. Soly engages professional local partner installers for the entire process to ensure safety, compliance and optimal performance. Professional installers adhere to safety standards such as MCS, and ensure compliance with local regulations. They also offer warranty coverage for added protection.

      Explore the benefits of upgrading your solar energy system with Soly's efficient battery storage solutions. Contact us today to learn more and get a personalised quote!