EcoFlow Launches Expandable Home Battery For UK

Inverter manufacturer and energy storage system (ESS) provider EcoFlow unveiled its OCEAN 2 Plus hybrid ESS at the Solar & Storage Live London 2026, targeting the UK’s residential prosumers. 

According to the company, this product is designed and developed to align with the country’s evolving prosumer demands, maximize PV self-consumption, provide emergency backup to all connected loads, and be future-ready. 

Regarding storage capacity, up to 6 lithium-iron phosphate (LFP) battery banks, each with up to 5 kWh capacity, can be stacked vertically to form a 30 kWh battery stack. Coupling this stack with a 12 kW single-phase hybrid inverter in an AC-coupled configuration makes it a 12 kW/30 kWh ESS platform. 

While this capacity (AC) is sufficient to meet traditional home loads, such as TV, refrigerator, lights, and so on, the growing usage of the heater, electric vehicle (EV) charger, and heat pump, among others, raises prosumers’ expectations. Connecting 2 identical 12 kW/30 kWh battery stacks to a 12 kW hybrid inverter forms a 60 kWh battery tower, increasing the backup duration. However, it cannot cater to connected loads beyond 12 kW. In such cases, a prosumer can connect 5 such battery towers (12 kW/60 kWh) in parallel to form a 60 kW/300 kWh home storage system. 

This storage capacity is optimized by maximizing solar harvesting and preserving stored energy compared to traditional alternatives. It has 3 independent MPPT channels, each connecting individual PV array strings. According to the company, this distributed design helps reduce generation loss from rooftops with multiple orientations and partial shading compared to a single MPPT-based counterpart. At the same time, the home battery is engineered for up to 200% DC/AC oversizing to maximize PV power availability throughout the day. Apart from enabling higher excess PV generation for battery charging, the system can limit its auxiliary load to 50 W during low-load discharging, compared to 160 W for conventional peers. The company claimed that this preservation, which is often overlooked, can save up to 6,000 kWh of charge over the battery’s 15-year lifespan.  

In terms of operation, this system, when integrated with the EcoFlow home energy management system (HEMS), provides battery charging and discharging, aligning with real-time demands and dynamic electricity tariffs. In contrast, it switches to emergency backup mode almost immediately in the event of grid outages or failures, the company claimed. Unlike the conventional system, which only provides backup for a few dedicated loads, it supports whole-home backup by connecting AC output  terminals with the prosumer’s main AC distribution box. 

Beyond the performance and operational flexibility, this new home battery, with its sleek prefabricated design and 46 kg battery packs (each), can be handled and installed easily. 

Craig Bilboe, Head of Residential UK & ANZ at EcoFlow, said, “UK homes are changing quickly. We're seeing more electric vehicles, more heat pumps, and more people wanting to use their own solar more effectively. OCEAN 2 Plus Single-Phase has been built for that reality.” 

This product’s commercial availability in the UK was unknown at the time of this article’s publication.