Combined Energy Home Energy Management System with rooftop solar

Take Control of Your Home Energy

What is HEMS?

Combined Energy HEMS reduces your total cost of electricity by coordinating connected appliances and energy storage devices in your home to make the best use of available solar power.

The Home Energy Management System (HEMS) monitors appliances in real time and makes regular adjustments to match your solar production as closely as possible during the day.

Diagram of a Combined Energy system in a home

How Combined Energy HEMS Works

Combined Energy HEMS is engineered to minimize your total electricity expenditure by continuously analyzing home energy usage patterns, solar production forecasts, and real-time tariffs.

The system automatically adjusts connected loads to maximize free solar self-consumption and shifts energy-intensive tasks to off-peak periods when grid rates are lowest.

Maximizing solar self-consumption

Preferentially using cheap grid power

Intelligent solar export limiting

Combined Energy EMU (Energy Management Unit)

Live View visible in the atHome web app

Smart Energy Management

Energy Management Unit (EMU)The brain of the system connects to your home’s internet and coordinates connected appliances, leveraging weather forecasts and tariff rates.

Power MeterInstalled at your electrical switchboard, this device monitors grid import and solar export in real time with high-frequency telemetry.

Powerline CommunicationsDevices communicate directly over your home’s existing electrical wiring with zero additional cabling required.

Automated Load ControlSolar production tracking, battery optimization, and export limiting work together in real time to minimize grid draw.

Insight and Control

Comprehensive visibility and effortless control over your household power flows.

Monitor Energy Consumption

Understand your appliances’ real-time energy use and running costs at a glance.

Get More From Your Solar

Power your home directly rather than exporting cheap surplus energy back to the grid.

Use Cheaper Grid Energy

Automatically schedule heavy loads during off-peak and low-cost tariff windows.

Battery Optimisation

Conserve battery capacity for peak tariff intervals and essential backup protection.

Insightful Energy Analytics

Access detailed performance trends, generation summaries, and historical reports.

Your System, Your Rules

Customise appliance priority and operating schedules with automated Control Modes.

Intelligent Water Heating

Through our partnership with Solahart, Combined Energy HEMS provides native integration for the Solahart PowerStore^® water heater.

Supported Devices

Check if your solar inverters, batteries, and appliances are compatible with Combined Energy HEMS.

View Supported Devices

Looking for a HEMS solution?

Our engineering and sales team are on hand to answer any questions and assist with your setup.