The Thunderman Journal

Field notes from a Greater Melbourne sparky.

Straight answers on electrical safety, air conditioning, solar, compliance and seasonal upkeep — written for Victorian homes and businesses. Citation-only. en-AU. No prices.

Licensed electrician inspecting a home battery storage system and switchboard

safety 25 June 2026

Home battery fire safety: what Victoria's ESV warning means for your system

After EnergySafe Victoria's home-battery fire warning, what Melbourne homeowners with a solar battery should check — and when to call a sparky.

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Outdoor split system condenser being installed on the wall of a Greenvale home

cooling 1 June 2026

Why two aircon quotes for the same house are not the same job

The six things that move a split-system aircon install quote in Melbourne — sizing, brand, electrical scope, condensate and commissioning.

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Wall-mounted EV wallbox installed in a Melbourne garage

how to 1 June 2026

EV charger install — six factors that change the cost in Victoria

What moves the cost of a home EV charger install in Victoria — wallbox size, phase, switchboard headroom, cable distance and load management.

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Close-up of a residential switchboard showing labelled RCBO and MCB devices on a modern DIN-rail enclosure

how to 1 June 2026

RCD, RCBO and MCB — what each safety device actually does in your switchboard

Plain-English guide to RCD, RCBO and MCB devices on an Australian switchboard — what each protects against and when AS/NZS 3000 requires it.

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Cat6 cabling pulled to a smart-home distribution panel inside a Melbourne home, ready for KNX or C-Bus termination

how to 1 June 2026

What drives the cost of smart-home wiring in a Melbourne home

Six factors that move a Melbourne smart-home wiring quote — Cat6 backbone, protocol choice, new-build vs retrofit, lighting zones and sub-board.

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Solar panel array installed on a Melbourne residential roof, with a battery storage unit visible inside the garage

compliance 1 June 2026

What drives the cost of a solar-and-battery retrofit in Victoria

Six factors that move a Victorian solar + battery retrofit quote — array size, battery capacity, inverter, roof type and distributor approvals.

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Three-phase consumer mains arriving at a Melbourne residential switchboard, with the meter equipment visible above

compliance 1 June 2026

What drives the cost of a three-phase power upgrade in Melbourne

Six factors that move a Melbourne three-phase upgrade quote — whether it's needed, distributor scope, pole-to-board distance and rebuild.

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Switchboard upgrade in progress — old ceramic-fuse board being replaced with a modern RCBO-protected enclosure

compliance 1 June 2026

What drives the cost of a switchboard upgrade in Melbourne

Six factors that move a Melbourne switchboard upgrade quote — RCBO count, cable runs, board size, single vs three-phase and meter access.

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Split system air conditioner indoor unit on a Melbourne living-room wall

cooling 26 May 2026

How to size a split system air conditioner for a Melbourne home

A licensed Melbourne sparky on kilowatts per square metre, what our climate changes, and the sizing mistakes that leave families sweating.

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Wall-mounted home EV charging station installed beside a Melbourne garage

compliance 26 May 2026

EV charger installation in Victoria: what's legal, what's smart

The Victorian rules for home EV chargers — 7 kW vs 22 kW, switchboard questions, certification, and what to ask before you book.

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Modern residential switchboard with safety switches and circuit breakers in a Melbourne home

safety 26 May 2026

Storm-season safety switches: what every Victorian home should check

Before Melbourne's first big summer storm, a sparky's 10-minute safety-switch check that catches the faults most homes ignore.

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