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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.

Save Energy - Commercial
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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Save Energy - Commercial
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
Solution


System Performance


Electricity Bill Savings


Net Financial Impact



Financial Projections
£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



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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.

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