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Case Study - GU21

Case Study - GU21

The customer reached out to Save Energy UK in search of a premium, future-ready solar and battery system. With a focus on high generation potential and reliable storage, the solution we delivered combines cutting-edge technology with strong environmental and financial impact, all wrapped in one sleek, Tesla-powered package.

800+
Five-star reviews
9.98/10
Checkatrade rating
5,000+
Installs complete
21+ years of expertise
GENERATE SOLAR POWER
Savings
REDUCE YOUR ENERGY COSTS
Environment
ENHANCE YOUR GREEN CREDENTIALS
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    Requirements

    Requirements

    The customer required:

    • A high-capacity system to significantly reduce reliance on grid electricity

    • Smart storage for efficient night-time usage

    • Top-tier components and modern design

    • Rapid payback and strong net savings over the system’s life

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    The Approach

    The Approach

    We designed a 22-panel Aiko system combined with a Tesla Powerwall 3. With excellent panel orientation and carefully calculated shading allowances, this setup delivers exceptional self-sufficiency and export potential throughout the year.

    System Overview:

    • 22 x Aiko 510W panels (11.22 kW total)

    • 1 x Tesla Powerwall 3.0 (11.04 kW hybrid inverter built-in)

    • Battery Capacity: 13.5 kWh

    • Estimated Generation: 8,761 kWh annually

    • Self-sufficiency with battery: 82%

    • Shading Losses: 12.2% (adjusted performance guarantee ≥90%)

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    Performance

    £77,773
    Lifetime Electricity Bill Before Solar
    £1,559
    Estimated First Year Savings Excluding VAT
    £39,588
    Lifetime Electricity Bill Savings
    £22,985
    Lifetime Electricity Bill After Solar

    Payback - 8 years, 7 months

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

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    To learn more about any of our case studies and or to discuss your project with us; whether it is commercial or residential, please complete our form and a member of our team will get back to you as soon as possible.