GoodWe EzManager – intelligent home energy management (HEMS). How does it work and when does it make sense?

In modern photovoltaic installations, it is increasingly less common for only the power of the modules and the selection of the inverter to matter. Today, the key factor is how energy is used on-site – meaning self-consumption, system stability and real savings over the year.

That is why solutions such as HEMS (Home Energy Management System) are gaining importance, i.e. home energy management systems. One such device is GoodWe EzManager (EzManager3000) – a solution that acts as the “brain” of the installation and helps control the flow of energy between PV, storage, the grid and loads in the building.

1. What is GoodWe EzManager (EzManager3000)?

GoodWe EzManager is a HEMS device that collects data from the installation (production, consumption, storage status, grid import) and enables automatic control of system components in such a way that energy is used as efficiently as possible.

In practice, EzManager does not replace the inverter – it complements it. The inverter is responsible for conversion and energy operation, while EzManager supports the control logic: when to charge, when to discharge, when to start loads and how to respond to tariffs.

2. What is EzManager used for? The most important benefits in practice

2.1. Higher PV self-consumption

The biggest value of a HEMS in a home is maximizing self-consumption. EzManager helps use energy on-site instead of exporting it to the grid, which is very important in conditions where the profitability of PV depends on how much energy the user consumes directly.

2.2. Automation and convenience

In installations with energy storage or additional loads (EV, heat pump), manual control quickly becomes inconvenient and ineffective. EzManager makes it possible to set operating scenarios and priorities, so the system works automatically – without daily user supervision.

2.3. Better energy cost management

Depending on the tariff and consumption profile, EzManager can support the system strategy in terms of:

• cheaper energy hours (e.g. charging the storage),
• more expensive energy hours (e.g. discharging the storage and reducing grid import),
• better matching the system operation to the real needs of the home.

2.4. One ecosystem and control in SEMS+

EzManager integrates with the GoodWe SEMS+ platform, which means convenient monitoring and system management in one place – especially important when the installation has more components than just “PV + inverter”.

B2B offer: if you design installations with energy storage or self-consumption-oriented systems, at Gvolt we will help you select compatible GoodWe solutions and control components for a specific site.

3. How does GoodWe EzManager work in practice?

The operation of EzManager can be described simply: the device collects data from the system, analyzes it and controls the installation according to defined priorities.

EzManager in practice:

• collects data from the inverter, energy storage and the grid,
• analyzes energy consumption in the building,
• enables control of devices depending on PV surplus,
• helps optimize the operation of the energy storage in the daily cycle.

Example operating scenario:

• during the day the PV system produces energy → surplus can charge the storage,
• when the storage is full → the system can start selected loads,
• in the evening and at night → energy from the storage covers home consumption, reducing grid import.

4. What can be connected to EzManager? (system compatibility)

EzManager3000 is designed to integrate various elements of the building energy system, which makes it possible to build a “smart” installation without using many separate controllers.

Example integration possibilities:

• GoodWe hybrid inverter (1 unit),
• GoodWe on-grid inverter (1 unit),
• EV chargers (up to 2 units),
• heat pump with SG-Ready input (1 unit),
• Shelly devices (up to 12 units) – load/socket/appliance control.

5. Interfaces and communication – what does it give the installer?

From the installer’s point of view, flexibility of installation and integration is important. EzManager3000 offers a wide set of interfaces, making it adaptable to different configurations:

• LAN
• Wi-Fi
• Bluetooth
• RS485
• digital inputs/outputs (DI/DO)
• CAN
• USB

In practice, this facilitates integration with devices in the building and launching scenarios that increase self-consumption and reduce energy costs.

6. Key technical data (quick project summary)

For many projects, mounting and environmental parameters are important. In the case of EzManager3000:

• power supply: 100–240 V AC
• power consumption: up to 7 W
• protection rating: IP20 (indoor installation)
• operating temperature: –30°C to +60°C
• mounting: wall / DIN rail / tabletop

It is a compact device that can be conveniently integrated into a distribution board or technical area.

7. Who does GoodWe EzManager make the most sense for?

EzManager will be a particularly good solution if the user:

• has a PV system and wants to increase self-consumption,
• has or plans an energy storage,
• has or plans an EV charger,
• uses high-demand loads (heat pump, heaters, air conditioning),
• wants one energy management system instead of several apps.

8. Why will EzManager be particularly important in 2026?

The PV market is moving towards installations designed for self-consumption and energy control. More and more users are looking for solutions that:

• reduce exporting energy to the grid,
• automate the operation of energy storage and loads,
• help respond better to energy price volatility,
• build cost predictability over the year.

GoodWe EzManager meets these needs – especially in installations where maximum efficiency, control over the system and the ability to expand in the future matter.

Summary

GoodWe EzManager (EzManager3000) is a practical solution for PV installations that are meant to operate as a system, not just as an energy source. Combined with an inverter, energy storage and load control, it increases self-consumption, automates system operation and improves control over energy costs.

If you are planning PV installations with energy storage, EV charging or a heat pump – it is worth considering HEMS as an element that realistically increases the value of the entire project.