1300 466 398 
With operating costs continuing to rise, many small and medium-sized businesses are looking for ways to bring their electricity bills under control. One factor that often catches business owners by surprise is the demand tariff. This charge can have a significant impact on your energy costs if not managed effectively.
This guide explains what a demand tariff is, how it differs from regular usage charges, and practical steps your business can take to manage demand tariffs while staying productive.
What is a Demand Tariff?
Most business electricity bills contain two main charges:
- Usage charges – calculated on the total amount of electricity consumed over the billing period, measured in kilowatt-hours (kWh).
- Demand tariffs – calculated based on the highest level of power demand your site places on the grid during a short period (usually 15 or 30 minutes) within a billing cycle.
In simple terms, while usage charges reflect how much energy you use overall, demand tariffs reflect how much power you need at once.
For example, if your site runs multiple large appliances at the same time — such as refrigeration units, air-conditioning, or machinery, your “demand peak” rises sharply, and that maximum demand level is used to calculate your tariff for the entire month.
Why Do Demand Tariffs Exist?
Demand tariffs were introduced by electricity networks and regulators to encourage more efficient use of the grid. Peak demand events, when lots of businesses and households use electricity at the same time, create pressure on infrastructure and increase costs across the system.
By charging more to customers who create higher peaks, the aim is to change usage and appliance behaviour to spread out demand peaks, reduce grid stress, and avoid costly network upgrades, reducing long-term costs being reflected back to customers. For businesses, this means there is an opportunity to save money by shifting energy use away from those high-demand moments.
How Demand Tariffs Affect Businesses
Because demand charges are based on your single highest usage period, one short burst of heavy energy use can drive up your bill for the entire month. For SMEs, this can be particularly challenging if operations are concentrated during peak hours.
Industries that often feel the impact include:
- Hospitality – running ovens, coffee machines, and refrigeration all at once.
- Retail – heating, cooling, and lighting all switched on during trading peaks.
- Light manufacturing – machinery, compressors, and conveyor belts operating together at full load.
Even if total energy use is moderate, one demand spike can increase overall costs disproportionately.
Practical Tips to Manage Demand Tariff Costs
Here are some simple strategies businesses can adopt to reduce demand peaks and keep bills in check:
- Stagger appliance start times
Appliances often use the most energy when they start up or warm up, for example, coffee machines or industrial machines that use heat. So staggering the start time of such equipment spreads your peak energy draw out over the day, keeping the peak demand lower over the month. - Stagger appliance use
Avoid running multiple high-demand machines at the same time. For example, start the dishwasher after refrigeration defrost cycles or production machinery have completed. - Use timers and smart plugs
Automate when devices switch on and off to prevent unnecessary overlap. This is especially useful for lighting, HVAC systems, or equipment that doesn’t need to run continuously. - Maintain equipment regularly
Poorly maintained air-conditioning, refrigeration, or motors often draw more power than necessary, leading to higher peaks. Servicing equipment can improve efficiency. - Consider load shifting
Move flexible operations, such as data backups, cleaning equipment, or certain production runs — to times when demand is lower, such as mid-morning or later in the evening. Some tariffs also have non-demand times, so using these times to operate equipment is even more effective. - Upgrade to energy-efficient models
Modern appliances, HVAC systems, and industrial equipment are often designed with lower peak power draw in mind, reducing the chance of creating large demand spikes.
Taking Control of Your Energy Costs
Demand tariffs are here to stay, but that doesn’t mean they have to derail your budget. By understanding how they work and adopting strategies to spread out energy use, businesses can lower costs and improve operational efficiency.
If you’re unsure whether your business is on the right tariff or want to explore smarter ways to manage demand, Next Business Energy can help. Our local team specialises in tailoring energy plans for SMEs and can review your current bills to ensure you’re not paying more than you need to.
Call us on 1300 466 398 (Monday to Friday, 8:00am – 9:00pm AEST/AEDT) or request a free business bill comparison today: https://nbe.wordpressfix.com.au