For many, retirement is a time to simplify. For Chris, it was the perfect opportunity to take control of his energy future. By combining a high-performance solar array with market-leading battery storage and an electric vehicle (EV), Chris has transformed his home into a self-sustaining power station—and he hasn’t paid an electricity bill in 18 months.

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The Motivation: Cutting Outgoings & Going Electric

Having followed the solar industry for years, Chris was waiting for the right moment to make the leap. Retirement provided the catalyst: he wanted to minimize fixed monthly outgoings. With plans to purchase an EV, he knew that the synergy between solar generation and vehicle charging would be the “holy grail” of home efficiency.

“I’d been aware of solar for a while, but once I retired and decided to get an EV, it just made sense. It was about reducing costs and future-proofing my home.”

Why Naked Solar?

Choosing the right installer is as critical as choosing the hardware. Chris researched several companies but ultimately chose Naked Solar for three key reasons:

• Local Expertise: A reputation for excellence within the community.

• Proven Results: Glowing testimonials from previous clients.

• Trusted Recommendations: Family members had recently completed an install with Naked Solar and couldn’t speak highly enough of the experience.

The Naked team completing Chris’ installation

The System: A Powerhouse Trio

To meet Chris’s goal of total energy security, we designed a system featuring top-tier components known for efficiency and reliability:

• 14 Trina Solar Panels: High-efficiency modules designed to maximize generation even on typical British “grey” days.

• Tesla Powerwall 3: The latest in battery technology, allowing Chris to store excess daytime generation for use at night or during peak price periods.

• Zappi EV Charger: A smart charger that integrates perfectly with solar, allowing Chris to divert surplus energy directly into his car rather than sending it back to the grid.

 

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The Impact: 18 Months of Zero Bills

The results have exceeded all expectations, even outperforming the initial PV Sol estimates. By pairing his hardware with an Octopus Energy smart tariff, Chris has achieved a level of energy independence that most only dream of.

Metric	Result
Electricity Bills	£0 (Zero) for the last 18 months
EV Running Cost	Approx. 2p per mile
Grid Reliance	Virtually eliminated during peak hours

In Chris’s Own Words:

“We haven’t paid anything to Octopus for 18 months; in fact, we have a small credit that should keep us going until the sun comes back out. We run the car for very, very little—at 7p/unit, it works out to about 2p per mile. I do a lot of miles, so I still use fast chargers when I’m away, but overall it’s a lot cheaper and much more fun than my old diesel Golf!”

Conclusion

Chris’s story is a masterclass in how modern technology can work together. By capturing the sun’s energy, storing it in a Tesla Powerwall, and using a Zappi charger to fuel his transport, he hasn’t just reduced his carbon footprint—he’s effectively opted out of the energy price crisis.

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