The Solar Purist

The Solar Purist approach prioritises using your own solar generation to charge your vehicle whenever possible.

It treats EV charging as an extension of household energy use, rather than a fixed demand that must always be met.

This approach can feel intuitive and satisfying for some households — and limiting for others — depending on expectations and lifestyle.

EV charging at home when solar power is low

What “Solar-First” Really Means

In a solar-first setup, the charger responds to live solar generation rather than fixed schedules.

In practice, this usually means one of three behaviours:

• Charging only when surplus solar is available
• Blending solar with grid power to maintain a steady charge
• Temporarily overriding solar when charging speed matters

This approach treats the car as a flexible energy load rather than a fixed demand.

Why People Choose This Approach

Many solar homes export energy during the day, then pull electricity back from the grid overnight to charge a vehicle.

  • From a cost perspective, that can still make sense.
  • From an energy-use perspective, it often feels inefficient.
  • For many households, the appeal is philosophical rather than financial.

This setup is chosen by people who care less about perfect schedules and more about using what they generate.

You’re Likely to Fit This Setup If…

This Approach Often Fits Homes Where…

  • Solar panels are already installed
  • Daytime generation is reasonably consistent
  • The car is often parked at home during daylight hours
  • You like seeing where your energy is going

It’s especially common in households where charging does not need to be completed as quickly as possible.

The Trade-Offs to Be Aware Of

This setup isn’t “better” — it’s different.

Choosing solar-first charging usually means accepting that:

  • Charging speed can vary
  • Total charge time may be longer
  • Results depend on the weather and season
  • Overnight tariffs may be used less
  • Solar-first charging often produces excellent energy alignment, but not always the lowest cost per mile.

For some households, this feels like control.
For others, it feels like a compromise.

Understanding that difference early prevents frustration later.

Solar-First vs Tariff-Led Charging

Solar-first and tariff-led charging optimise for different things.

A solar-first setup prioritises using electricity at the moment it’s generated. Charging responds to sunlight, household demand, and availability, even if that means slower or interrupted charging.

A tariff-led setup prioritises price windows instead. Charging is scheduled around cheaper grid electricity, usually overnight, regardless of whether solar is producing at the time.

Neither approach is inherently better — they simply reflect different priorities.

Solar-first charging tends to appeal to households that value:

  • using their own energy where possible

  • aligning charging with generation

  • understanding and adapting to system behaviour

Tariff-led charging tends to appeal to households that value:

  • predictable charging outcomes

  • lower cost per mile

  • minimal day-to-day involvement

In practice, many homes end up using elements of both, depending on tariffs, driving patterns, and household routines.

The key difference isn’t performance — it’s what you’re optimising for.

EV charging Saving Costs

Infrastructure Still Matters

Even in a solar-first setup, the physical constraints of the home still matter.

Things like:

  • available fuse capacity

  • distance between the metre and the driveway

  • signal strength at the charger location

  • future plans such as battery storage or heat pumps

All influence how well a solar-first charger will behave.

That’s why this setup is always checked against the site itself — not just product specifications.

A Simple Way to Think About It

The Solar Purist setup suits homes that want to:

  • actively use their own solar generation

  • understand and see energy flows

  • accept variability in exchange for efficiency

It isn’t about speed.
It isn’t about chasing the cheapest tariff.

It’s about alignment between how your home produces energy and how your car is charged.

For some households, this feels like control.
For others, it feels like a compromise.

Understanding that difference early prevents frustration later.

Still Deciding? That’s Normal.

If this approach doesn’t feel right, that’s useful information — not a failure to decide.

  • whether your solar output is suitable.
  • whether the trade-offs make sense
  • or whether a different approach would be simpler

This page explains a common real-world pattern, not a universal recommendation.
If a setup can’t be justified for your home, it won’t be suggested.