Practical ways to reduce your business electricity costs

Electricity is one of the bigger running costs for many businesses, and it’s one of the few you can do something about without changing how you trade. The trick is to start with where the power actually goes, rather than jumping to the latest product. This guide covers the practical steps we recommend to business owners and facility managers across the Gold Coast, Brisbane and Northern NSW.

We don’t quote savings figures here, because every site is different. The actual result depends on your equipment, operating hours, tariff and how the building is used.

Understand where the power goes

Start with your bill. Commercial bills often include consumption charges, and some also include demand charges based on your peak usage. If your bill includes demand charges, reducing peaks can matter as much as reducing total use.

Next, look at the loads. In most businesses, the big users are air conditioning, lighting, refrigeration, hot water, motors and IT equipment. An electrician can install sub-metering or temporary logging to show which circuits use the most and when. That data tells you where to focus.

Lighting

Lighting is often the easiest place to start. Replacing older fluorescent, metal halide or halogen lighting with LED fittings generally reduces energy use and maintenance. Adding occupancy sensors, daylight sensors and time schedules stops lights running when nobody is there.

Warehouses with high bays, car parks that run all night, and shops with lots of display lighting often see the most benefit. Our commercial LED upgrade guide covers planning in more detail.

Air conditioning

In the Queensland climate, air conditioning is often the biggest single load. Simple steps help:

• Set sensible temperatures and avoid overcooling
• Use timers and controls so systems turn off after hours
• Keep filters and coils clean through regular servicing
• Seal gaps and close doors between conditioned and unconditioned areas
• Replace older, inefficient units when they reach end of life

We work with mechanical contractors on controls and supply, and we can check that air conditioning circuits are correctly sized and protected.

After-hours loads

Walk through your site after close and see what’s still running. Lights, signage, computers, printers, hot water units, heaters, coffee machines and display fridges are common culprits. Timers, smart switches and simple shutdown routines can make a noticeable difference without affecting how you trade.

Some equipment needs to run around the clock, such as refrigeration and servers. For everything else, the question is whether it really needs to be on.

Power factor and motors

Industrial and larger commercial sites with lots of motors may have poor power factor, which can affect demand charges on some tariffs. Power factor correction equipment can help in the right circumstances. Variable speed drives on pumps and fans can also reduce energy use where loads vary.

These are site-specific solutions that need proper assessment. Our industrial electrical team can review motors, drives and power quality.

Solar and batteries

For businesses that use most of their power during the day, solar can be a good fit, because generation lines up with operating hours. Batteries can help with demand peaks or after-hours use but add cost, so they need a careful look at your usage profile. Connection must meet the network operator’s rules and AS/NZS 4777 for inverter connection.

If you’re considering solar, get your load data sorted first. It helps size the system properly.

Maintenance matters

Poorly maintained equipment often uses more energy. Loose connections create heat and waste power. Dirty air conditioning coils make systems work harder. Faulty controls leave equipment running when it shouldn’t. A regular maintenance program with thermal imaging can pick up problems that waste energy and could lead to failure.

Hot water and refrigeration

Commercial kitchens, cafés, gyms and medical practices often run large electric hot water systems and several fridges and freezers. Hot water units set hotter than needed, or heating around the clock when the business only uses water during the day, waste energy. A timer or a change to the heating schedule can help, as long as the system still meets the temperature requirements for safety and hygiene.

For refrigeration, check door seals, keep condenser coils clean and make sure units have room to breathe. Display fridges in hot shopfronts or poorly ventilated back rooms work much harder than they need to. Where equipment is old and struggling, replacement with a more efficient unit may be worth considering when it reaches end of life.

Staggering start-up

If your bill includes demand charges, what happens first thing in the morning can matter. Air conditioning, compressors, ovens and hot water all switching on at once creates a peak. Staggering start-up times, using controls to bring equipment on in sequence, or pre-cooling before peak periods can reduce that peak without changing how the business runs.

Check your tariff

Businesses are sometimes on a tariff that doesn’t suit how they use power. It’s worth reviewing your retail contract and tariff periodically, particularly after changes to operating hours or equipment. Your retailer or an energy broker can advise on options. We don’t sell energy or tariffs, but we can provide load data that helps you make the decision.

Where to start

If you’re not sure where to begin, we suggest:

1. Review your bills and tariff to understand consumption and demand charges
2. Walk the site after hours to spot unnecessary loads
3. Get an electrician to log or sub-meter the main circuits
4. Prioritise lighting and controls, which are often the quickest improvements
5. Plan larger changes, such as air conditioning replacements or solar, around your data

How we can help

Our energy efficiency service covers load assessment, LED upgrades, controls, sub-metering and switchboard work for offices, shops, hospitality venues, warehouses and industrial sites. We give upfront written quotes and explain what each change involves, without inflated savings claims.