EcoFlow DELTA Pro 3: Modular Home Storage with Up to 18 kWh Capacity

Discover the EcoFlow DELTA Pro 3, a modular home energy storage system with up to 48 kWh capacity. Learn how it can provide backup power and optimize energy costs for US households.

Updated · By Fabrice Cosson

EcoFlow expands its DELTA series with a modular home energy storage system. The DELTA Pro 3 can be gradually expanded to up to 18 kWh.

EcoFlow DELTA Pro 3: Sustainable and Economical Through Winter with Scalable Home Energy Storage Systems

The home energy storage market is experiencing significant growth, driven by rising energy costs and the desire for greater independence. In this context, EcoFlow presents the DELTA Pro 3, a modular solution designed to bridge the gap between portable power stations and permanently installed home storage systems. This new development aims to provide households with not only a reliable backup power supply but also the ability to actively optimize energy consumption – especially during the critical winter months.

With the DELTA Pro 3, EcoFlow responds to the growing demand for flexible and powerful storage systems that can adapt to individual needs. The integration of smart charging strategies and high scalability are key features that make the system attractive for a wide range of applications.

Modular Energy for Maximum Flexibility

At the heart of the system is a base unit with a 4 kWh capacity. This basic capacity can power essential devices like refrigerators, routers, and laptops for approximately 12 to 18 hours. However, the special feature of the DELTA Pro 3 lies in its pronounced modularity: by adding additional storage units, the total capacity can be expanded to an impressive 48 kWh. This offers users the flexibility to precisely adapt their system to their energy needs – from securing essential consumers to achieving near-complete household energy independence.

The DELTA Pro 3 offers flexible AC output power between 3,600 W and 7,200 W, allowing it to operate even high-energy-consuming devices. For charging, EcoFlow relies on powerful solar integration, enabling up to 2,600 W of solar energy input via dual PV connectors. This means the system is not just a backup power generator but an integral part of intelligent energy management.

Durable Technology and Backup Power Planning

For energy supply, EcoFlow uses Lithium Iron Phosphate (LFP) cells, known for their high safety, thermal stability, and longevity. LFP batteries withstand significantly more charge cycles than conventional lithium-ion batteries, allowing for an expected lifespan of up to 10 years or more. This cycle stability is a crucial factor for the economic efficiency and sustainability of the system.

When planning a backup power supply, it is advisable to first determine the wattage consumption of the most important devices. A DELTA Pro 3 base unit with 4 kWh is often sufficient to maintain the cold chain and power communication devices during prolonged power outages. The system

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