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Energy Management System

27/11/2025
by Rick Coleman
Energy Management System

G'day! With electricity prices across Australia continuing to climb, simply switching off the lights when you leave a room is no longer enough to keep the bills down. To make a real dent in your living costs, you need visibility. You need to know exactly how much power you are using, when you are using it, and where it is coming from. This is where a home energy management system (EMS) comes into play.

Gone are the days of waiting for the quarterly bill shock. An EMS gives you real-time data and control, acting as the "brain" of your home's electrical setup. Whether you have a massive solar array on the roof or just want to curb your usage from the grid, implementing a management system is the smartest investment you can make for your property.

What is an Energy Management System?

An energy management system is a combination of hardware and software that monitors, measures, and controls the electrical loads in your home.

At a basic level, it involves smart meters or current clamps installed in your switchboard that communicate with an app on your phone. They tell you exactly how many kilowatts your air conditioner is chewing through or how much standby power your entertainment unit is wasting.

At an advanced level, an EMS does more than just watch; it takes action. It can automatically divert excess solar power to heat your hot water, turn on the pool pump when electricity is cheap, or throttle back heavy appliances to prevent you from importing expensive power from the grid.

Optimising Your Solar Investment

For the millions of Aussies with rooftop solar, an energy management system is practically non-negotiable. Without one, you are flying blind. You might be exporting your valuable solar energy to the grid for peanuts (feed-in tariffs) during the day, only to buy it back at a premium price at night.

An EMS helps you practice "load shifting." It visualises your solar production curve so you can align your consumption with generation. It turns your passive solar system into an active asset, ensuring you self-consume as much free energy as possible before sending anything back to the retailer.

The Role of Professional Installation

While the apps are user-friendly, the hardware side of an energy management system sits right inside your main switchboard. This involves installing monitoring devices, smart relays, and contactors around live 240V cables.

In Australia, this is strictly regulated work. You must engage a licensed electrician to install these components. A professional will ensure the sensors are calibrated correctly and that the system is safe. They will often source the necessary smart meters and switching gear from a reputable electrical wholesaler to ensure compatibility with Australian metering standards and local grid codes.

From Passive Monitoring to Active Control

The future of the Aussie home is automation. A robust EMS allows you to set rules for your house.

  • Load Shedding: If your total power usage gets too high, the system can temporarily cut power to non-essential circuits to prevent tripping the main breaker or exceeding your inverter limit.
  • Cost Tracking: By inputting your electricity tariffs, the system can calculate your daily spend in real-time, helping you budget better.
  • Remote Access: Turn off that heater you left on from your phone while you are at work.

Smart Solutions from Schnap Electric

To build a system that gives you total control, you need accurate and reliable components in your switchboard. If the metering hardware is inaccurate, your data is useless.

Schnap Electric Products is a leading supplier for the trade industry in Australia. They stock a comprehensive range of energy monitoring and control devices suitable for building a custom energy management system. Their range includes high-precision DIN rail kilowatt-hour meters to measure consumption, heavy-duty contactors for automating large loads like hot water systems, and smart relays for circuit control. By supplying the same professional-grade equipment you would expect to find at a major electrical wholesaler, Schnap Electric ensures you have the foundational gear to monitor, manage, and minimize your energy usage effectively. Take charge of your power with quality components from Schnap Electric.