- High quality global inverter manufacturer, GoodWe, has introduced a new generation of its ESA series residential all-in-one energy storage solution, expanding its range of home power management technologies.
- The latest single-phase ESA system integrates a hybrid inverter with stacked battery modules, offering flexible configurations with inverter capacities from 3 kW to 10 kW and total storage options between 5 kWh and 48 kWh.
According to GoodWe, the system supports a maximum MPPT current of 20 A on the photovoltaic (PV) side, enabling compatibility with larger solar modules. It also allows for 200% PV oversizing to maximize generation during off-peak hours or cloudy conditions. The inverter’s low startup voltage of 50 V extends operational time, increasing energy utilization throughout the day. GoodWe said the inverter can deliver full power to household loads while simultaneously charging the battery at its maximum rate during peak demand or solar generation periods.
Related news: Special inverter promotion in South Africa: Buy 10 get 1 FREE from GoodWe
The new ESA series includes six inverter models with maximum PV-side input powers of 6 kW, 7.2 kW, 10 kW, 12 kW, 16 kW, and 20 kW, corresponding to AC-side outputs of 3 kW, 3.6 kW, 5 kW, 6 kW, 8 kW, and 10 kW. The four smaller models are equipped with two maximum power point trackers (MPPTs), while the two higher-capacity versions have four. Efficiency levels reach up to 97.6% for the lower-rated inverters and 97.5% for the larger units. Each module measures 80 cm by 30 cm by 27 cm, weighs between 24 and 26 kg, and can be mounted on the wall or floor.
The inverters can be paired with one to six lithium iron phosphate (LiFePO₄) batteries, available in 5.12 kWh or 8.32 kWh configurations. Six smaller batteries yield a total capacity of 30.72 kWh, while six larger ones reach 49.92 kWh. With support for up to six inverters and a combined storage capacity of 288 kWh, the system can scale for larger residential or small commercial installations.
Both the inverter and battery units have an IP66 protection rating, making them suitable for indoor and outdoor installations. Optional heating elements enable the batteries to operate in environments as cold as –18 °C. The batteries measure 80 cm by 32.6 cm by 27 cm and weigh 57.5 kg for the smaller version and 79 kg for the larger one.
GoodWe said the batteries’ 1C charge and discharge rate allows faster energy cycling, meaning the system can deliver high power with fewer battery modules compared to lower C-rate systems. This makes it suitable for high-power applications such as peak shaving and frequency regulation. Other operational modes include optimized self-consumption, backup power, time-of-use optimization, smart charging, and off-grid operation.
The system also features an integrated backup function capable of switching in less than four milliseconds during a power outage, fast enough to ensure uninterrupted operation for sensitive devices such as computers, lighting, and Wi-Fi routers
GoodWe has an extensive distribution network across the African continent.
