Energy education

Simple explainers to help you understand how energy works.

May 18, 2026

Network tariff reviews: The annual review that can save your business thousands

Every 1 July, network tariffs reset across Australia. Most businesses notice the change on their invoice weeks later. But here's what the data shows: 24% of reviewed sites could switch to a better tariff. Zembl recently identified $648,000 in potential savings across 148 sites, averaging $4,379 per site per annum.

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Energy education

May 18, 2026

Energy bill validations: An under-used line of energy defence

Billing anomalies in commercial environments are common, but most go undetected because no one checks with the right tools. A proper energy bill validation is a line-by-line reconciliation that catches contracted rate errors, tariff misalignments, and calculation mistakes before they compound across multiple cycles.

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Energy education

May 18, 2026

From small to large business: What it means in energy contract terms – and why it’s good news

Crossing into the commercial and industrial energy market can feel abrupt, but it's not a penalty. It's a recognition that your business qualifies for a more sophisticated market. Around 100 MWh per annum or $3,000 per month triggers the move. It's the part of the market where you stop being a price-taker and start being a buyer.

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Energy education

May 18, 2026

Demand charges: The line item most businesses misread

Demand charges measure how hard the grid works at your peak moment. A golf club charging all buggies at once creates a spike and higher charges. Stagger charging across the day and you reduce the peak and the cost. Understanding what's being measured is the difference between managing a line item and a quiet drain on margin.

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Energy education

May 18, 2026

Meter upgrades and infrastructure: What they are, why they matter, and how to navigate them

Meter upgrades are one of the most consequential conversations in commercial energy, and they're about to become urgent. Australia's smart meter mandate requires all businesses in the National Electricity Market (NEM) to have a smart meter by 2030. Done well, an upgrade unlocks better data, better tariff eligibility, and better outcomes for years to come.

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Energy education

May 18, 2026

Tariff changes and why they happen: Understand the drivers, don’t just react to the bill

Tariff changes are not random. They follow identifiable market, regulatory, and network forces shaped by wholesale costs, network charges, and environmental schemes. Once you understand what drives them, you stop being surprised and start making decisions from a position of strength.

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Energy education

May 8, 2026

Commercial energy contracts expiring at EOFY: What happens if you miss the deadline

June is the second-biggest peak for commercial energy contract expiries after December. Miss your deadline and the cost lands squarely in the new financial year.

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Energy education

April 22, 2026

Peak vs off-peak electricity rates for small businesses

Peak and off-peak electricity rates split the day into windows priced differently, with higher rates during late-afternoon weekday peaks. Find out how time-of-use tariffs work for small businesses, how peak windows differ by state, and what you can shift to cut bills.

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Energy education

March 10, 2026

What is an MIRN number?

If you need to set up gas, switch retailers, or fix a billing issue, the MIRN is the number that identifies your gas supply point. This guide explains mirn meaning, where to find it, and how it differs from your meter serial number.

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Energy education

March 10, 2026

What is an NMI number?

If you are setting up electricity, switching retailers, or fixing a billing issue, you will usually be asked for your NMI. This guide explains what it is, where to find it, and when it can change.

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