EcoFlow PowerOcean DC Fit: Revolutionizing Solar Storage Retrofitting
In the current storage retrofit market, both DC-coupled and AC-coupled systems face limitations in installation, power efficiency, and cost-effectiveness. The industry is seeking new technologies to address these challenges.
Understanding PV Coupling Solutions
The EcoFlow PowerOcean DC Fit utilizes a unique PV-coupling technology designed to overcome the limitations of traditional AC-coupled and DC-coupled systems.
AC-coupled system vs. DC-coupled system
AC-coupled system: Typically involves a solar panel, a third-party solar inverter, a battery, a storage inverter, and a main distribution panel connecting to the grid and whole home appliances. DC power from solar panels is converted to AC by the solar inverter, then potentially converted back to DC for battery charging, and then back to AC for home use or grid export. This involves multiple conversion steps.
DC-coupled system: Involves a solar panel, a hybrid inverter, a battery, and a main distribution panel. DC power from solar panels can be directly fed into the battery via the hybrid inverter, or converted to AC for home use/grid. This system often requires a dedicated hybrid inverter and may not directly integrate with existing solar inverters.
The EcoFlow PowerOcean DC Fit offers a distinct approach.
How the EcoFlow PV Coupling Solution Works
The EcoFlow PowerOcean DC Fit system integrates seamlessly with existing solar setups. Solar panels generate DC power, which is directly fed into the EcoFlow PowerOcean DC Fit unit. This unit then manages the DC power for battery storage or converts it to AC power for home appliances and the grid. This direct DC connection bypasses the need for a separate storage inverter and minimizes energy conversion losses.
Diagram Description: A diagram illustrates the PV coupling solution where a Solar Panel is connected via a blue DC line to the EcoFlow PowerOcean DC Fit. The PowerOcean DC Fit then connects via a red AC line to a Third-party Inverter, which in turn connects to the Grid and Whole Home Appliances. Blue lines represent DC connections, and red lines represent AC connections.
PV Coupling Solution vs. Other Solutions Comparison
| Feature | PowerOcean DC Fit | DC coupling | AC coupling |
|---|---|---|---|
| Direct connection with PV system | ✔️ | ❌ | ❌ |
| No additional storage inverter | ✔️ | ✔️ | ❌ |
| No replacement of the existing solar inverter | ✔️ | ❌ | ✔️ |
| No change on the AC wiring | ✔️ | ✔️1 | ❌ |
| No on-grid permit | ✔️ | ✔️2 | ❌ |
1 Change of the wire terminal may be required depending on the output port type of the existing solar inverter.
2 Depends on the output power of the new hybrid inverter.
What Makes PowerOcean DC Fit Special?
- The unique PV-coupling technology
- Affordability
- Compatibility
- Easy to install
- Enhanced Safety and Reliability
Affordability: Maximize Solar System Efficiency with Lower Investment
The PowerOcean DC Fit is designed for cost-effectiveness and efficiency.
Modular Design, Expandable Anytime
- Starting Capacity: Begins at 5kWh per battery pack. Each pack features an 800V high-voltage battery capable of independently starting single-phase or three-phase solar inverters.
- Expansion: Can be expanded up to 15kWh as needed, offering flexibility and boosting energy self-sufficiency with a lower investment.
Easy to Adapt: Wide Compatibility with Most Solar Inverters
Utilizing EcoFlow's cutting-edge self-adaptive control algorithm, the PowerOcean DC Fit retrofit battery storage solution intelligently mitigates the risk of oscillation between the PV-coupled battery system and third-party solar inverters.*
Diagram Description: An illustration shows the EcoFlow unit connected to an existing third-party solar inverter and an electrical panel.
*Please note that the compatibility data presented here originates from EcoFlow's laboratory and the use of this product may be potentially subject to specific compatibility restrictions imposed by third-party inverters.
Easy to Install: Setup with Fewer Changes and Easier Steps
The installation process is streamlined for convenience.
- Before Installation: Shows a typical existing setup.
- Step 1: Connect PowerOcean DC Fit to the solar panels.
- Step 2: Connect PowerOcean DC Fit with the solar inverter.
- Step 3: Integrate the smart meter into the panel box.
Diagram Description: A sequence of diagrams illustrates the installation steps: 'Before' shows the initial state. Step 1 shows the DC Fit connected to solar panels. Step 2 shows the DC Fit connected to the solar inverter. Step 3 shows the smart meter integrated into the electrical panel box.
Enhance Safety and Reliability: Industry-Leading Battery Performance
- 800V High Voltage: Enables efficient operation and compatibility.
- LFP Battery from CATL: Utilizes reliable Lithium Iron Phosphate cells from a leading manufacturer.
- 15 Years Industry-Leading Warranty: Provides long-term peace of mind.
- IP65 Rated Weather Proof: Ensures durability and protection against dust and water ingress.
Image Description: A close-up image of an EcoFlow LFP HOME BATTERY unit.
Integrated BMS for Hazard Isolation
Each battery pack features an integrated Battery Management System (BMS) for enhanced safety.
- Parallel Connections: Avoid the mutual influence of batteries, ensuring independent operation.
- Individual BMS Module: Each battery has its own integrated BMS module, preventing any malfunctions from affecting the rest of the system.
- Compatibility: The new battery is perfectly compatible with older ones, facilitating upgrades.
* Compliant with GDPR with local server in Germany.
Fire-Prevention Module in Every Pack
Each pack is equipped with a fire-prevention module that actively detects battery temperature and activates immediately when it reaches 170°C, ensuring safety.
Image Description: Two images show a module labeled 'Fire Prevention' in a controlled test environment, one with visible flames and another with smoke, demonstrating its activation.
Auto Heating Module for Winter Performance
Each pack is equipped with heating modules designed to ensure smooth operation even in cold winter conditions.
Image Description: An internal view of a battery pack shows heating elements, and another image shows the battery unit being sprayed with water to demonstrate its IP65 rating.
IP65 Rated Weather Proof: The unit is protected against dust and low-pressure water jets.
Meet the Unique All-in-one Design
The PowerOcean DC Fit boasts an innovative and user-friendly design.
- All-in-one Minimalist Design: Seamlessly integrates the battery and storage converter into a single, cohesive system.
- Ultra-thin Compact Size: Neatly fits in basements or garages, saving valuable space for other appliances.
Image Description: A front view of the EcoFlow PowerOcean DC Fit unit, highlighting its sleek, integrated design.
Structural Design: Internal Components
The internal structure of the PowerOcean DC Fit unit includes several key components:
- Auto heating module
- Fire extinguishing module
- LFP battery cell
- BMS module
- DCDC converter
Diagram Description: A cutaway view of the unit reveals the arrangement of internal components, including the auto heating module, fire extinguishing module, LFP battery cells, BMS module, and DCDC converter.
Structural Design: Terminals
The rear of the unit features various terminals for connectivity:
- Power terminal: For main power connections.
- Communication: Ports for data exchange and system communication.
- Battery switch: A dedicated switch for controlling battery power.
- Fuse: Protection against overcurrent, rated for DC 1500V/12A.
Diagram Description: A view of the unit's rear panel shows the layout of terminals, including the Battery ON/OFF switch, communication ports (COM1, COM2), battery switch, and fuse.
Certification
The EcoFlow PowerOcean DC Fit battery complies with various international standards:
| Region | Certification | Certification Standard |
|---|---|---|
| EU | CB+CE+TUV mark | IEC/EN62477 |
| EU | CB+CE+TUV mark | IEC/EN62619 (EN ISO 13849) |
| EU | Transportation report | UN 38.3 |
| EU | CE (RED RF) | 61000-6-3, 61000-6-1 |
| EU | ROHS | 2011/65/EU+2015/863/EU |
| EU | REACH | (EC)No1907/2006 |
| EU | REACH Annex XVII | REACH Annex XVII |
| EU | PAHs | ZEK01.4-08 |
| EU | POPS-SCCP | POPS |
| EU | WEEE | 2012/19/EU |
| EU | EPR registration | Germany, France: WEEE Package+battery+recycle registration |
Specifications
The PowerOcean DC Fit unit has the following dimensions and connection ports:
- Dimensions: 680 mm (width) x 424 mm (height) x 201 mm (depth). The unit also has specific height segments: 230 mm, 50 mm.
- Connection Ports: Inverter Connection Terminal, PV Input Terminal, WAN Port, Smart Meter Port.
- PV Switch: Integrated switch for photovoltaic input.
Diagram Description: A diagram shows the unit with its dimensions clearly marked. It also labels the various connection ports: Inverter Connection Terminal, PV Input Terminal, WAN Port, and Smart Meter Port, along with a PV Switch.
App and Web Portal For Users: Function Comparison
EcoFlow provides comprehensive monitoring and control through its app and web portal.
EcoFlow App vs. EcoFlow Web Portal
| Feature | EcoFlow App (https://download.ecoflow.com/app) | EcoFlow Web Portal |
|---|---|---|
| Real-time energy flow | Y | Y |
| Historical data of solar, consumption, grid, and battery | Y | Y |
| Energy independence report | Y | |
| Energy earnings report | Y | |
| Impact report | Y | |
| Customizable widgets | Y | |
| Work mode | Y | Y |
| Storm watch automation setting | Y | |
| Electricity tariff setting | Y | Y |
| Error code | Y | Y |
| Firmware update | Y | |
| LiveChat | Y | Y |
| Map view | Y | |
| Dashboard of multiple systems | Y |
EcoFlow Pro App vs. EcoFlow Pro Web Portal
| Feature | EcoFlow Pro App | EcoFlow Pro Web Portal |
|---|---|---|
| Commissioning | Y | |
| Dashboard of multiple systems, i.e. monitoring multiple systems at a time | Y | |
| Map view for monitoring multiple systems | Y | |
| Detailed troubleshooting solutions for system faults | Y | Y |
| LiveChat | Y | Y |
download.ecoflow.com/app
