“Smart solar technology delivering strong returns and long-term energy security.”
A high performance 7.38kWp solar PV system with battery storage, installed in Milton Keynes, designed to maximise generation, reduce grid reliance and deliver excellent long term savings.
System Specifications
- Location: Milton Keynes, Buckinghamshire
- Installation date: July 2024
- System size: 7.38kWp
- Solar panels: 18x Amerisolar 410W panels
- Inverter: SolarEdge inverter with power optimisers
- Battery storage: Voltsmile 10kWh
System Performance and Technology
This installation uses SolarEdge technology, where each panel operates independently thanks to power optimisers. This ensures maximum generation even if some panels are shaded or underperforming.
- Panel level optimisation increases overall system efficiency and output
- Advanced monitoring allows real time performance and tracking
- Enhanced safety features such as automatic voltage reduction
- Battery storage stores excess energy for use in the evening
SolarEdge systems can significantly improve energy yield compared to standard string inverters by optimising each panel individually, rather than limiting performance to the weakest panel.
The addition of a 10kWh Voltsmile battery further improves self-consumption, reducing reliance on the grid by storing surplus daytime generation for later use.
Financial Performance
- First year savings: £1,159
- 25 year projected savings: £39,606
- Return on investment: 183.66%
- Payback period: 12 years
This system delivers a strong financial return, with energy savings continuing well beyond the payback period – effectively generating free electricity for over a decade.
Environmental Impact
Expected carbon savings of 15,343 kg over 25 years. By switching to solar, the homeowner is significantly reducing their carbon footprint while contributing to the UK’s transition to renewable energy.
Why This System Works
This project is a strong example of how combining optimised solar generation with battery storage creates maximum value:
- Higher energy yield from panel level optimisation
- Reduced energy waste through battery storage
- Protection against rising electricity costs
- Long term reliability with premium components
Summary
This Milton Keynes installation demonstrates how a well designed solar and battery system can deliver:
- Immediate energy bill reductions
- Long term financial returns
- Greater energy independence
- Meaningful environmental benefits
With a 12 year payback and over £39,000 in projected savings, this system is a smart investment in both sustainability and financial security.
