The home energy storage space is evolving fast, and EcoFlow is stepping into a new league with its latest launch: the Ocean Pro battery system. Designed for whole-home backup, serious solar integration, and long-term energy independence, the Ocean Pro represents EcoFlow’s most ambitious entry into the residential battery market to date.
For California homeowners dealing with rising electricity rates and frequent grid outages, the Ocean Pro could be a game-changer. In this post, we’ll explore what makes this battery unique, how it compares to alternatives, and who it’s best for.
What Is the EcoFlow Ocean Pro?
The Ocean Pro, formerly known as the DELTA Pro Ultra, is a large-scale, modular solar battery system that can be installed indoors or outdoors. It’s built to provide backup power for the entire home—not just a few circuits—and works with both new and existing solar panel systems.
Unlike EcoFlow’s previous portable models, the Ocean Pro is designed as a permanent part of your home’s energy infrastructure.
Key Features and Technical Specs
Here’s a breakdown of what the Ocean Pro offers:
| Feature | Ocean Pro Specification |
|---|---|
| Battery Chemistry | Lithium Iron Phosphate (LFP) |
| Base Capacity | 6 kWh per battery module |
| Scalability | Up to 15 modules (90 kWh total) |
| Inverter Output | 7.2 kW per unit, stackable up to 21.6 kW |
| EV Charger Support | Yes, Level 2 EV charging |
| Monitoring | EcoFlow app with real-time data |
| Cycle Life | ~3,500+ cycles to 70% capacity |
| Installation | Works with EcoFlow Smart Home Panel 2 |
The system is also compatible with generators and grid charging, making it suitable for off-grid homes or properties in areas with unreliable utility service.
How Does It Compare to Tesla and Enphase?
EcoFlow is clearly targeting the same market segment as Tesla Powerwall and Enphase IQ Battery, but the Ocean Pro stands out in three ways:
- Expandable capacity up to 90 kWh, compared to 40.5 kWh (3 units) for Powerwall 3 and 16 kWh (4 units) for Enphase.
- High inverter output, supporting large HVAC systems and whole-home power needs.
- Modular installation, allowing you to start small and expand as needed.
It also includes a native EV charging port and direct home panel integration, which is not standard with most solar battery systems.
Who Should Consider the Ocean Pro?
The EcoFlow Ocean Pro is best suited for:
- Homeowners with large energy needs (3,000+ square feet or EV charging).
- Those in fire-prone or outage-prone regions like California, Texas, or Florida.
- Families considering full off-grid systems with long-duration storage.
- Solar customers who want to maximize energy independence and reduce time-of-use billing penalties.
It is probably not the right choice for renters or households needing only a few hours of backup power.
How Much Does It Cost?
Pricing depends on configuration, but typical 2025 estimates are:
- Base 6 kWh system with inverter: $6,000 to $8,000
- Fully installed 18 kWh system with Smart Panel: $15,000 to $20,000
- Expansion batteries: Around $3,000 each
Homeowners pairing it with solar may qualify for the 30% federal tax credit, significantly reducing out-of-pocket costs.
Final Verdict: Is the Ocean Pro Worth It?
The EcoFlow Ocean Pro is one of the most powerful and flexible solar battery systems currently available for residential use. It’s a strong option for anyone looking for:
- High energy storage and output
- Expandability over time
- Whole-home backup with EV compatibility
It competes directly with Tesla and Enphase, but offers more capacity and advanced smart home integration. For those looking to future-proof their home’s energy system, the Ocean Pro is well worth considering.
Want to compare more battery options? Check out our guide to the best home solar batteries to see how the Ocean Pro stacks up against the rest.
