Andersen A3 vs Wallbox Quasar 2

> V2G boundary: A “V2G-ready” label or ISO 15118 support does not by itself provide bidirectional power conversion, export approval or a live energy service. Confirm the compatible car, genuinely bidirectional hardware, certified complete system, installer, service and network approval before assigning value to the claim. Read the UK V2G explainer.

A wallbox and a science project walk onto your driveway

The Andersen A3 costs £900. The Wallbox Quasar 2 costs £6,100. The gap is £5,200 — enough to buy the Andersen, have it installed, and still have change left over for a decent holiday.

That price difference tells you almost everything. These are not two versions of the same product. The Andersen is a single-phase AC charger — 7.4 kW, tethered Type 2, hidden cable, 247 finishes, seven-year warranty. It charges your car. The Quasar 2 is a bidirectional DC unit — up to 12.8 kW in both directions via CCS2 — designed to push energy back from your car into the house or the grid. It is, at this point, closer to infrastructure than to a wallbox.

• Andersen A3 — a premium AC charger for people who care what the thing on the wall looks like. £900, seven-year warranty, OZEV-eligible.
• Wallbox Quasar 2 — a bidirectional DC unit for V2H and V2G. £6,100, pre-registration only, three-year warranty, not OZEV-approved.

Why £5,200 does not buy you a better charger

If all you need is to charge a car overnight, the Quasar 2 does nothing the Andersen cannot. Both will fill a typical 60 kWh battery from near-empty by morning on a single-phase supply. The Andersen does it at 7.4 kW; the Quasar 2 can push 12.8 kW DC, but your car and your DNO connection still set the ceiling. For the overnight job — plug in, schedule to Octopus Go or EDF GoElectric, wake up full — the £900 unit is identical in outcome.

The Quasar 2's entire justification is bidirectional power flow. Vehicle-to-Home means your car battery backs up the house during a power cut or during peak-rate hours. Vehicle-to-Grid means exporting stored energy and getting paid for it. Both are real capabilities. Both require a compatible car — the Kia EV9 is the headline name; most UK Teslas and other EVs cannot do this today. Both require a DNO G99 application, which takes 30–60 working days and may come with an export cap. And the installation itself runs £1,500–£3,000 on top of the £6,100 unit, with fewer installers qualified to fit it than a standard AC box.

The Andersen, meanwhile, goes on the wall in a standard £400–£600 install. If you are an eligible renter or flat owner, the £500 OZEV grant brings the unit to £400.

The Andersen's actual competition

The honest question for most readers landing on this page is not "Andersen or Quasar?" — it is "Is the Andersen worth £900 when a Tesla Wall Connector costs £475?" That comparison is covered properly in the Tesla Wall Connector vs Andersen A3 piece, but the short answer: you are paying for the anodised aluminium body, the hidden 5.5-metre cable that retracts into the unit, the seven-year warranty, and 247 colour-match options. If the charger faces the street, the Andersen earns its keep. If it sits in a garage, the Ohme Home Pro at £539 or the Hypervolt Home 3 Pro at £625 deliver stronger software for less money.

The Andersen's smart features — app scheduling, Intelligent Octopus Go integration, solar integration — are competent. They are not class-leading. The 5.5-metre cable is shorter than most rivals. IP54 is adequate, not rugged. You buy this charger because no other home unit looks like it, and because a seven-year warranty means you will not think about it again until 2033.

Who the Quasar 2 is actually for

A narrow group: someone who already owns or has ordered a bidirectional-compatible EV, who has researched V2G export tariffs and run the payback arithmetic, who is comfortable with a pre-registration product and a specialist install, and who accepts a three-year warranty on a £6,100 unit. That person exists. They are not comparison-shopping against a £900 wallbox.

If you are interested in the lower-cost communication layer around future V2G systems, the Zaptec Go 2 publishes ISO 15118 support. That does not prove bidirectional conversion or eliminate future hardware changes. The Indra Smart PRO at £395 is a conventional one-way AC charger.

The verdict

Buy the Andersen A3 if:

• The charger is visible from the street or the front of the house and you want it to look like it belongs there
• You value a seven-year warranty and aluminium construction over software depth
• You want a standard AC install with no DNO paperwork

Buy the Wallbox Quasar 2 if:

• You own a bidirectional-compatible car and have a concrete V2G export plan
• You have budgeted £7,600+ for unit and specialist installation
• You understand this is pre-registration hardware with a short warranty and a short compatibility list

For the overwhelming majority of UK EV owners, the Andersen A3 is the relevant product on this page — and even then, it is a premium choice within the AC charger market. The Quasar 2 is a fascinating piece of kit aimed at a future that has not quite arrived. When it does, the maths will change. Today, the maths says buy a good wallbox and keep £5,200 in your pocket.