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Case Study - DT11

Case Study - DT11

This customer wanted to dramatically reduce rising electricity costs while future-proofing their home with clean, renewable energy. By installing a high-performance solar PV system with battery storage, they are now generating the majority of their own electricity and significantly reducing reliance on the grid.

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    Requirements

    Requirements

    The homeowner was looking for a future-proof renewable energy solution that would significantly reduce electricity bills while maximising long-term savings and energy independence.

    Key requirements included:

    • A high-output solar PV system capable of offsetting the majority of annual electricity usage

    • Battery storage to allow solar energy to be used during evenings and overnight

    • A system designed to maximise self-consumption, reducing reliance on the grid

    • Integration of a solar diverter to use excess energy for hot water heating

    • A solution that delivers strong financial returns with a clear payback period

    • Minimal disruption during installation with a clean, professional finish

    • Equipment from trusted manufacturers with long warranties and proven reliability

    The final design needed to balance performance, efficiency, and long-term value while ensuring the system could adapt to future energy demands.

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    The Approach

    The Approach

    We designed and installed a 9.0kWp solar PV system paired with EcoFlow battery storage and a solar diverter, ensuring maximum self-consumption and long-term savings.

    Installed System Includes:

    • 20 × 450W Solar Panels (Hengdian Group DMEGC Magnetics)

    • EcoFlow PowerOcean 6kW Hybrid Inverter

    • EcoFlow PowerOcean LFP Battery (4.84kWh usable capacity)

    • Solar iBoost+ hot water diverter

    This setup allows excess solar energy to be stored or diverted to heat water, ensuring very little energy goes to waste.

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    Performance

    £43,390
    Lifetime Electricity Bill Before Solar
    £1,278
    Estimated First Year Savings Excluding VAT
    £48,360
    Lifetime Electricity Bill Savings
    £-4,970
    Lifetime Electricity Bill After Solar

    Payback - 8 years and 4 months

    *Figures shown are dependent on kWh generation, usage and initial cost of installation.

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