The EV Charging Trap: What No One Tells You About Compatibility, Cables & Costs

Installing a home EV charger sounds simple enough. Pick a charger, call an electrician, job done. But the reality is far more nuanced — and the wrong choices can cost you time, money and charging speed.

Type 1 versus Type 2 connectors. Tethered versus untethered units. OZEV grants. Load balancing. Single-phase versus three-phase supply. The complexity catches most people off guard.

Trap 1: Charger Compatibility

Not all EVs are created equal.

Different vehicles accept different charge rates and connector types. Installing the wrong charger doesn't just mean inconvenience — it means suboptimal charging speed. A 22kW charger on a vehicle that only accepts 7kW is money wasted. A Type 1 connector when your car needs Type 2 means you're reaching for adaptors every time.

Trap 2: Tethered vs Untethered

A tethered charger has the cable permanently attached — it's neat, quick to plug in and ideal if you'll always charge the same vehicle. An untethered charger uses a separate cable, offering flexibility if you change vehicles, share with a partner's different EV, or live in a property with shared parking.

Neither is universally better. The right choice depends on your situation.

Trap 3: Smart Features Aren't Frivolous

It's tempting to save money with a basic charger. But smart features like timed charging, solar integration and tariff syncing save real money over the lifetime of the unit. Scheduling charges for off-peak hours alone can save hundreds of pounds a year.

Trap 4: Installation Costs Vary

A "£899 install" might sound appealing — until the installer charges £400 extra for a consumer unit upgrade they didn't mention upfront.

Transparent pricing matters. Here's what a realistic installation looks like:

Solar designs EV charging solutions tailored to your vehicle, your tariff and your future needs. No hidden costs, no surprises — just an installation that works from day one.