Home EV Charger Installation in Cornwall: The Complete 2026 Guide

Why Install a Home EV Charger?

Charging an electric vehicle from a standard 3-pin socket is possible, but it is slow, inefficient, and not designed for regular high-current use. A standard plug charges at 2.3kW — adding roughly 8–10 miles of range per hour. A 7kW dedicated home EV charger adds approximately 30 miles per hour, meaning a full charge from empty takes 6–8 hours overnight rather than 24+ hours on a plug.

Beyond speed, a dedicated charger is safer (purpose-built cabling and protection devices), smarter (schedulable charging, remote monitoring, energy data), and increasingly integrated with solar panels and energy tariffs to minimise the cost per mile.

Choosing the Right EV Charger

The three chargers we most frequently install are:

• Zappi (myenergi) — Our most popular choice for homes with solar panels. The Zappi has three modes: Fast (charges from the grid at full speed), Eco (prioritises solar surplus), and Eco+ (only charges when solar is generating enough surplus). This makes it the most economical charger available for solar households. 7kW single-phase or 22kW three-phase.
• Ohme — Best-in-class smart tariff integration. The Ohme app connects directly to energy tariffs including Octopus Intelligent, scheduling charging automatically at the cheapest overnight rates without any manual input. Excellent for households without solar but on a smart EV tariff.
• Easee — Clean Scandinavian design, compact installation, and solid smart charging features. A good all-rounder for households wanting straightforward 7kW charging with scheduling and monitoring.

All new domestic EV chargers in the UK must be smart chargers by law — capable of remote monitoring and scheduled charging. All three of our recommended chargers meet and exceed these requirements.

Smart EV Chargers and Solar Integration

If you have solar panels, pairing them with a Zappi smart charger is one of the most financially effective upgrades available. Rather than exporting surplus solar electricity to the grid for 5–15p/kWh (Smart Export Guarantee rate), the Zappi detects when you are generating more solar electricity than your home is using and automatically diverts that surplus to charge your car.

In Eco mode, the Zappi will charge your car using 100% solar surplus when available, filling the gap with grid electricity as needed. In Eco+ mode, it only charges when solar surplus is detected — which means charging may be intermittent on overcast days, but on sunny Cornwall days, you can charge your car essentially for free.

Customers with solar panels and a Zappi charger typically source 50–70% of their annual EV charging from their own solar electricity — a significant saving at current electricity prices of 24.67p/kWh. See our guide to charging your EV with solar for more detail.

EV Tariffs and Overnight Charging

For households without solar panels — or to supplement solar on cloudy days and overnight — smart EV tariffs can dramatically reduce charging costs:

• Octopus Intelligent — Automatically schedules overnight charging at around 7–8p/kWh by integrating with your car's charging system. Widely available and our most recommended tariff for Ohme charger users.
• Octopus Go — A fixed off-peak rate of around 7p/kWh between midnight and 5am. Simpler to use with any smart charger.
• British Gas Electric Driver — Off-peak overnight charging for EV owners. Rates similar to Octopus Go.

Charging overnight at 7–8p/kWh vs peak daytime rates of 24.67p/kWh represents a 75% reduction in electricity cost per mile — the equivalent of buying petrol at around £0.35 per litre.

What the Installation Involves

A typical home EV charger installation takes half a day. Our electricians:

1. Survey your consumer unit and available cable routes
2. Install a dedicated circuit from your consumer unit to the charger location
3. Mount the charger unit on the garage wall or exterior wall
4. Commission the charger and set up the app/smart features
5. Provide a Part P building regulations certificate

All our EV charger installations are carried out by qualified electricians and comply with BS 7671 wiring regulations and Part P. We can advise on the best charger location and cable route during a free assessment visit.

EV Charger Installation Across Cornwall

We install EV chargers across mid-Cornwall including St Austell, Bodmin, Truro, Newquay, Wadebridge, and Padstow. See all areas we cover.

For homes with solar panels, we recommend combining an EV charger with a battery storage system to maximise the proportion of your car charging fuelled by free solar electricity. Get in touch to discuss your requirements.