Our latest blogs

June 17, 2026

Zembl's May 2026 energy market wrap

May's wholesale electricity market hit eight-week lows as winter failed to deliver the expected demand surge. With 2026 futures sliding to $82.12 and battery storage reshaping grid dynamics, businesses face a narrow window to lock in competitive contracts. Here's what the numbers mean for your energy costs.

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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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Energy education

March 10, 2026

What is a retailer margin?

Retailer margin is the part of your electricity or gas rate that covers the retailer’s costs, risk and profit. This guide shows where it sits in commercial pricing, how it is applied, and what to ask for so you can compare offers properly.

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Energy education

March 10, 2026

Are commercial energy brokers legit?

This guide explains how commercial energy brokers work in Australia, when they are legitimate, and the practical checks that help you avoid bad brokers.

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Energy education

March 10, 2026

Are commercial energy brokers regulated in Australia?

Commercial energy brokers in Australia are not governed by a single national licensing framework. They generally operate outside the core energy regulatory system that applies to retailers and network operators, unless the broker is directly selling energy themselves.

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Energy market

March 5, 2026

The average small business electricity and gas bills in 2025

How much are small businesses paying for electricity and gas in 2025? We break down the average annual bills, blended rates and supply charges by state, plus what it means for your business.

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Success stories

February 25, 2026

Townsend Signs switches and secures $3,100 in energy savings

Townsend Signs reviewed their rising energy costs with Zembl. We compared their bill, identified $3,100 in annual savings, and handled the switch so they could start saving immediately.

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Success stories

February 25, 2026

How First Choice Printing unlocked $3,900 in annual energy savings

First Choice Printing was hit with a 27% rise in electricity costs. We compared their bill, found $3,900 in annual savings, and handled the switch so they could start saving immediately.

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Success stories

February 25, 2026

Maxi Shine Belmont powers down costs with $4,800 in annual savings

Maxi Shine Belmont partnered with Zembl to reduce rising power costs. We compared their bill, uncovered $4,800 in annual savings, and handled the entire switch so they could start saving straight away.

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Success stories

February 25, 2026

Grand Hotel Wellington cuts electricity costs by $11,300 annually

Grand Hotel Wellington was feeling the pressure of rising power bills. We compared their plan, uncovered $11,300 in annual savings, and handled the entire switch, making it easy for them to start saving immediately.

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Our latest blogs

Zembl's May 2026 energy market wrap

What is an NMI number?

What is a retailer margin?

Are commercial energy brokers legit?

Are commercial energy brokers regulated in Australia?

The average small business electricity and gas bills in 2025

Townsend Signs switches and secures $3,100 in energy savings

How First Choice Printing unlocked $3,900 in annual energy savings

Maxi Shine Belmont powers down costs with $4,800 in annual savings

Grand Hotel Wellington cuts electricity costs by $11,300 annually

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