First ChoiceSolar

Hardware Architecture

Decarbonising the Driveway: The Mathematics of Solar EV Charging.

James Hayward · Senior Technical Adviser, First Choice SolarPublished May 2026Last reviewed May 2026 3 min read OZEV Approved Standards (Myenergi Zappi)

Executive Summary

Yes, you can charge an electric vehicle entirely via solar panels using Solar Divert Technology. Smart chargers — including the Myenergi Zappi and the Duracell EV Charger — actively monitor your home's energy consumption. The moment your roof generates more power than your home requires, the charger instantly routes that surplus green energy directly into your vehicle's battery, rendering your daily commute effectively free.

The Ultimate Energy Synergy

Buying grid electricity to charge an EV is cheaper than petrol, but it is still paying for energy you could generate yourself. By integrating a smart EV charger directly into your First Choice Solar solar architecture, you create a closed-loop ecosystem. The Myenergi Zappi charger communicates in real time with your inverter. Instead of exporting excess solar for a minimal SEG tariff, it treats your car as a large, mobile battery — filling it with energy that cost you nothing to generate.

Intelligent Off-Peak Scheduling

During deep winter when solar yields are lower, the ecosystem's intelligence takes over. Using the myenergi app or Duracell Energy App, the charger automatically reads dynamic grid pricing — such as the Octopus Go tariff at 7p/kWh overnight — and schedules your car to charge only during the cheapest available hours. You never pay peak rates again.

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Technical Accuracy Pledge

Every figure in this article is sourced from manufacturer datasheets and independently verifiable accreditation registers. Last reviewed: May 2026.

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