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    Battery Storage Guide

    As energy prices rise and more homeowners look for ways to reduce bills, solar panels with battery storage offer an attractive solution. By capturing the sun’s energy during daylight hours and storing excess electricity in a storage battery for solar panels, you can tap into solar power whenever you need it. This guide explains how solar panels work with battery storage, typical costs, the installation process, and why it’s becoming an essential investment for many UK households.


    What Is Battery Storage for Solar Panels?

    A battery storage system stores the surplus electricity generated by your solar panels. Instead of sending excess energy back to the National Grid, your home can draw on that stored power later—typically in the evenings or on overcast days.

    • Key Benefits
      • Lower Electricity Bills: Reduce reliance on grid electricity, especially during peak-rate periods.
      • Energy Independence: Enjoy more control over your power supply.
      • Cleaner & Greener: Increase the percentage of renewable energy used in your household.
    This is how battery storage works with solar panels

    How Do Solar Panels Work with Battery Storage?

    1. Solar Generation: Sunlight is converted into direct current (DC) power via rooftop panels.
    2. Inversion to AC: An inverter converts DC to alternating current (AC), which powers your home.
    3. Battery Storage: Surplus electricity charges the battery storage system.
    4. Night-Time Use: Once the sun sets or usage exceeds panel output, the battery discharges to meet household demand.

    How to Install Solar Panels and Battery Storage

    If you’re considering adding battery storage to an existing solar system—or installing both at once—Solar Panel Funding can help. We’re a fully qualified installer with a panel of the UK’s top installers, ensuring you get expert advice and quality work from MCS-certified professionals.

    Typical Process

    1. Assessment & Quote: Our team evaluates your roof space, energy usage, and goals (e.g., cost savings, backup power).
    2. System Design: We propose the ideal combination of panel wattage, inverter capacity, and battery size.
    3. Installation: Panels are fitted on your roof, connected to an inverter, and linked to the battery system.
    4. Certification & Handover: We provide all documentation, including MCS certificates and warranties.

    How to connect solar panels to battery storage

    How to Connect Solar Panels to Battery Storage (AC vs. DC)

    Two main methods exist for connecting solar panels & battery storage:

    • AC Coupling:
      • Separate inverters for both the solar array and the battery system.
      • Great for retrofits, as it doesn’t require replacing your existing inverter.
      • May have slightly higher upfront costs.
    • DC Coupling:
      • Uses one inverter (often a ‘hybrid inverter’) to manage solar generation and battery storage.
      • Can be more efficient, but is usually best suited for new installations.

    Your Solar Panel Funding expert will recommend the configuration that fits your budget and home energy needs.


    The Cost of Solar Panels and Battery Storage in the UK

    A common question is “What is the cost of solar panels and battery storage?” Several factors influence price: system capacity, battery technology, and installation complexity.

    By opting to install solar panels with battery storage simultaneously, you may save money through package deals. Solar Panel Funding can provide tailored quotes so you know precisely what to expect.


    battery storage costs

    How Much Is Battery Storage for Solar Panels?

    Battery prices differ based on capacity, brand, and chemistry (like lithium-ion vs. lead-acid). Typical UK benchmarks:

    • Small Systems (3–4kWh): ~£2,000–£4,000
    • Medium Systems (5–7kWh): ~£4,000–£6,000
    • Large Systems (8kWh+): ~£6,000–£10,000

    Ask about warranties—most premium lithium-ion batteries carry around 10 years of coverage.


    Is It Worth Getting Battery Storage with Solar Panels?

    Installing a solar panels + battery storage system is increasingly worthwhile for many UK homeowners. Key considerations:

    • Time at Home: If you’re often out during peak sunlight, storing excess generation for evening use can significantly cut bills.
    • Tariffs: High grid electricity costs make using your own generated power more cost-effective.
    • Environment: Lower your carbon footprint by maximising renewable energy consumption.
    • Payback Period: With rising energy prices, payback times are getting shorter, often between 5–10 years.

    Factors Affecting Battery Storage Cost

    1. Battery Chemistry: Lithium-ion batteries generally cost more but last longer than lead-acid alternatives.
    2. Capacity & Power Rating: Larger batteries or those with higher power output command higher prices.
    3. Brand & Warranty: Premium brands often offer longer warranties and better long-term performance.
    4. Installation Complexity: Retrofitting battery storage to an existing system can be more involved than installing both from scratch.

    Man working out solar panel battery savings on a calculator

    Maximising Savings and Earnings

    • Optimise Appliance Use: Run appliances (washing machines, dishwashers) during the day or when your battery has surplus energy.
    • Smart Tariffs: Charge your battery on cheaper off-peak electricity if sunlight is limited, saving on higher peak rates.
    • Export Schemes: Some suppliers offer payments (Smart Export Guarantee) for excess energy returned to the grid.
    • Home Efficiency: Combine a battery with measures like improved insulation or LED lighting for even greater savings.

    Potential Savings at a Glance

    For many homeowners, installing solar panels and battery storage can reduce grid electricity usage by 60% or more. The exact figure depends on your energy consumption habits and the size of your system. Over the system’s lifespan, these savings can be substantial, often leading to a shorter payback period than standalone solar panels.

    Maintenance and Lifespan

    Modern lithium-ion batteries need minimal maintenance:

    • Monitoring: Most systems include an app or online portal to track performance and system health.
    • Battery Care: Avoid deep discharge cycles to prolong battery life.
    • Regular Check-ups: Periodically confirm your inverter and battery are functioning optimally.

    A well-maintained battery can last 10–15 years, though its capacity will slowly diminish over time.

    How solar panel funding can help

    Next Steps: How Solar Panel Funding Can Help

    At Solar Panel Funding, we’re a fully qualified installer and partner with some of the UK’s top MCS-certified professionals. Instead of searching for multiple quotes, simply:

    1. Contact Us: Request a personalised quote that includes both solar panels and battery storage.
    2. Consultation & Design: We’ll evaluate your current or planned setup, recommend the right battery size, and calculate potential savings.
    3. Installation & Support: Our team handles everything from fitting the panels to commissioning the system and handing over documentation.
    4. Enjoy the Savings: Start benefiting from lower energy bills, a smaller carbon footprint, and a more secure power supply.

    Conclusion

    Whether you’re adding battery storage for solar panels to an existing system or starting from scratch, the benefits for UK homeowners are compelling. Rising energy prices, improved battery technology, and accessible financing options make solar panels with battery storage a smart, future-proof investment.

    • Assess Your Needs: Determine if your home’s energy usage and lifestyle justify the cost.
    • Get Professional Advice: Consult an MCS-certified installer to get a tailored system design and quote.
    • Enjoy the Benefits: Once installed, monitor your energy production and savings—and watch your electricity bills shrink.

    If you’re ready to explore battery storage for solar panels, contact reputable installers, compare quotes, and take the next step towards a greener, more energy-independent future.

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