GoodWe’s latest ESA Series ESS is designed and developed for Europe’s residential and small-scale C&I prosumers
Combined with the company’s recently launched SEMS+, it performs complex operations and offers data visualization in real time
The ESS has also received a certification for ‘low noise’ from TÜV Rheinland
Solar-plus-storage solutions provider GoodWe launched its latest ESA-Series All-in-One product at an event in Amsterdam, the Netherlands, targeting Europe’s 3-phase residential prosumers.
The company emphasizes that ‘smart’ and ‘silent’ operations are key features of its energy storage solution (ESS). This ESS, equipped with an inverter, vertically integrated battery stacks, and an energy management system (EMS), offers an AC power output range of 5 kW to 30 kW.
On the solar harvesting side, each of its 4 built-in MPPT channels supports multiple PV strings and a PV input of up to 21 A DC. The company claims these MPPTs allow up to 200% DC oversizing, maximizing solar energy capture to fully charge the batteries while delivering full-load current.
It also offers flexibility in terms of battery unit selection based on application patterns. For fast charging from solar or grid and discharging, such as for high-inductive domestic loads, it supports 5 kWh or 8 kWh battery cells with a full-load charging/discharging rate of 1C. However, the company also offers higher-capacity cells of 6 kWh or 9 kWh with a lower 0.5C rate, which are preferred for storing higher energy for longer backup during grid outages.
In terms of emergency backup, the ESS switches to off-grid mode within 4 ms of a grid outage to ensure uninterrupted running of connected loads. On the scalability side, its inverter unit is designed to support up to 12 battery units connected in parallel with a cumulative capacity of up to 108 kWh, without the need for extra wiring or ESS. In addition, this configuration allows connecting up to 6 ESA systems in parallel, with a maximum capacity of 648 kWh, catering to small commercial & industrial (C&I) applications.
These operations, which are typically complex and require continuous monitoring to make real-time decisions, are assisted by the latest EMS, SEMS+ (Smart Energy Management System+). Accessible via an app or web browsers, it combines ESSs, diverse domestic loads such as heat pumps, electric vehicle chargers, and more than 13 third-party device types, including remote monitoring stations and communication gateways, in a closed-loop network. It provides visualization of operational data such as generation and consumption, and AI-based energy scheduling functions such as peak-shaving and valley-filling. When combined with GoodWe’s EZManager3000 residential AI solution, it also simplifies the real-time import and export of excess energy.
According to the company, these real-time adaptations to operating conditions, along with a customized cooling fan, help the ESS maintain noise levels below 30 dB at an ambient temperature of 25°C. It also earned the ‘Highest Grade Low-Noise Performance Certification’ from TÜV Rheinland during the event.
In addition to its quieter operation, GoodWe says its built-in safety features, such as battery management, thermal monitoring, fire protection via a pressure-relief mechanism and an aerosol-based fire extinguisher, and overvoltage protection with Type I+II SPDs, help it maintain safe and reliable operation over multiple cycles.
From an installation point of view, this ESA series features a dual-port-based system architecture that, GoodWe claims, enables installation within 10 minutes. In this context, David Wijnandts, Key Account Manager at GoodWe Benelux, says, “Our installer partners are increasingly asking for systems that are easier to install and manage.”
The company says that this ESS is scheduled to be commercially available in March 2026.
