Home EV charger shopping tends to focus on brand names and app features, but the decision that actually matters most is the power level the charger can deliver and whether your home's electrical supply can support it. Chargers are generally grouped into Level 1 (standard household outlet, very slow) and Level 2 (dedicated circuit, meaningfully faster) AC charging, and the practical difference between them is entirely about how many kilometres of range are added per hour of charging, not about brand quality.
Level 1 versus Level 2 charging explained
Level 1 charging uses a standard household power point and the portable cable that typically comes with the vehicle. It works, but delivers a low charging rate, generally only suitable for topping up a vehicle with modest daily driving, or as a fallback rather than a primary charging method. Level 2 charging uses a dedicated circuit and a wall-mounted or pedestal-style charger, delivering a substantially higher rate that can fully charge most EV batteries overnight. For most households doing regular daily driving, a Level 2 charger is the more practical long-term choice, though the specific power level a Level 2 unit can deliver still depends on the home's electrical supply.
Why single-phase versus three-phase supply matters
The maximum charging power available at a property depends heavily on whether the home has a single-phase or three-phase electrical supply, a distinction covered in more detail in our dedicated article on the topic. In broad terms, three-phase supply allows for a higher maximum charging power than single-phase, which can mean a noticeably shorter charging time for the same size charger. Whether a home has single-phase or three-phase supply is determined by the existing connection, and upgrading from single-phase to three-phase is possible in many cases but involves a distributor application and a cost that should be weighed against the actual charging speed benefit for your driving pattern.
Solar-aware charging and load management
Some EV chargers include solar-aware or 'solar diversion' functionality, adjusting the charging rate dynamically to draw primarily from surplus solar generation rather than the grid, which can be a useful way to align EV charging with daytime solar output for households that are usually away during the day and can charge over a weekend, or that work from home. Separately, load management functionality allows a charger to automatically reduce its draw when other large loads (like an air conditioner or oven) are running, which can help avoid tripping the home's main switch on properties with limited total capacity. These are genuinely useful features for the right household, but they add cost and complexity, so it's worth being clear on whether your usage pattern will actually benefit from them before paying for them.
Switchboard capacity assessment
Before any Level 2 charger is installed, an electrician needs to assess the home's switchboard to confirm there's adequate spare capacity for the new circuit, particularly in older residential properties where the switchboard may already be close to its rated limit once existing circuits, solar inverters and any other large appliances are accounted for. In some cases, a switchboard upgrade is required as part of the EV charger installation, which adds to the project cost and should be quoted and understood upfront rather than discovered midway through installation.
Questions to ask before buying
- What is my home's current phase supply, and does it limit the maximum charger power I can realistically use?
- Does my switchboard have spare capacity, or will an upgrade be needed as part of this installation?
- Do I actually need solar-aware charging or load management, based on when I typically charge?
- Does my network distributor require notification or approval for a charger of this power rating?
- What warranty and servicing support does the charger manufacturer and installer provide locally?
Choosing a home EV charger is ultimately an electrical infrastructure decision dressed up as a consumer purchase. Getting the phase supply, switchboard capacity and actual charging needs assessed properly before selecting a model will do more for the outcome than comparing app interfaces or brand reputations.
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This article is general information, not financial or electrical advice. Program rules and eligibility change, confirm current settings with the relevant scheme or your Esena engineer before making decisions. Last reviewed: August 2026.