The EcoFlow OCEAN 2 Plus Single-Phase Hybrid Inverter is the higher-capacity model in the OCEAN 2 range, now available in 8 kW, 10 kW (9.9 kW rated) and 12 kW outputs. It is an all-in-one, stackable hybrid inverter built for larger homes and high-demand loads such as heat pumps, EV chargers and immersion heaters, with three independent MPPTs that accept up to 24 kW of PV from complex or multi-orientation roofs.
Integrated whole-home backup with a 72 A bypass and 0 ms load-side switchover means no additional gateway is needed, and a built-in smart meter removes external meter wiring. The inverter stacks on OCEAN 2 LFP batteries up to 96 kWh per inverter (with 8kWh modules), supports third-party inverter connection on the backup side, and is rated IP66 for indoor or outdoor mounting. EcoFlow backs it with a 15-year system warranty.
8 / 10 / 12 kW
Rated output options
3 MPPTs
Up to 24 kW PV input
72 A
Whole-home backup bypass
0 ms
Load-side switchover*
Up to 96 kWh
12 modules, 8kWh batteries
* The 0 ms transfer time applies in compliance with local grid regulations, with the grid in an open-circuit state, total load power not exceeding the rated backup output power, and stable grid conditions.
Safety and installation
Installation and commissioning must be carried out by a qualified, MCS-certified installer in accordance with BS 7671 and the EcoFlow installation guide. At these output levels a G99 grid connection application must be made to the local Distribution Network Operator (DNO) and approved before commissioning. The system works with high-voltage DC on both the PV and battery sides.
Not compatible with the EcoFlow single-phase Gateway
The OCEAN 2 Plus inverters are not currently compatible with the EcoFlow single-phase Gateway. They do not need it: whole-home backup is integrated, with a 72 A bypass, so no additional gateway or backup box is required.
Batteries and battery base sold separately
The inverter ships without batteries. It stacks on EcoFlow OCEAN 2 LFP batteries (5kWh or 8kWh) on an OCEAN 2 battery floor base, with up to 6 batteries per tower and 12 modules per inverter using a second tower. OCEAN 2 batteries can also be mixed with PowerOcean LFP batteries, but mixed stacks have their own base requirements, so check the installation guide.
Backup operation
For 0 ms switchover, total backup load must not exceed the rated backup output power. The 72 A bypass supports higher household loads than the standard OCEAN 2 inverter, and up to 5 units can be paralleled in grid-connected systems.
Warranty
EcoFlow provides a 15-year system warranty for the OCEAN 2 Plus single-phase system. The 8kWh battery carries a 10-year compulsory warranty with an optional 5-year extension. Refer to EcoFlow's warranty policy for full terms.
Choose your output
Rated output
Max. PV input
Max. apparent power
Best suited to
8 kW
16 kW
8 kVA
Larger homes with high self-consumption or EV charging
10 kW (9.9 kW rated)
20 kW
11 kVA
High-demand homes with heat pumps and whole-home backup
12 kW
24 kW
12 kVA
Maximum single-phase output for the largest loads and PV arrays
All three models share the same enclosure, 36.5 kg weight, 3 MPPTs, IP66 rating, 72 A bypass and 0 ms backup switchover. Choose the output to match your household demand, PV array size and DNO connection limits.
Key features
Three output options
Available as 8 kW, 10 kW (9.9 kW rated) or 12 kW, suited to larger households, EV charging, heat pump and immersion heater loads.
Three independent MPPTs
3 MPPTs with one string each, up to 8 kW and 16 A per MPPT, adapt to complex roofs, multiple orientations and partial shading.
True whole-home backup
A 72 A bypass with 0 ms switchover and no additional gateway, plus third-party inverter connection on the backup side for existing solar.
Expandable storage
Up to 12 battery modules, or 96 kWh with 8kWh packs, and up to 5 inverters in parallel on-grid for up to 480 kWh.
Faster installation
Built-in smart meter, integrated backup, built-in handles and captive side screws cut wiring and installation time versus a traditional system.
Smart energy management
HEMS Intelligent mode optimises charging around dynamic tariffs, with control from the EcoFlow app, web portal or PowerInsight.
Technical specification
General
Manufacturer / range
EcoFlow OCEAN 2 Plus Single-Phase Hybrid Inverter
Model codes
EF HD-P1-8K0-S2A (8 kW), EF HD-P1-9K9-S2A (10 kW)
Number of phases
Single-phase (L+N+PE), 220/230 V
Dimensions (W x D x H)
Approx. 680 x 203 x 406 mm (without IoT and 4G dongle)
Mounting
Floor stand / wall mounted
Environmental category
Outdoor / indoor
PV input
Number of MPP trackers / strings per MPPT
3 / 1
Max. PV input power
16 kW (8 kW) / 20 kW (10 kW) / 24 kW (12 kW)
Max. input power per MPPT
8 kW
Max. input current per MPPT
16 A
Max. short-circuit current per MPPT
20 A
MPPT voltage range
50-810 V
MPPT start-up voltage
120 V
AC output and backup
Rated output power
8 kW / 10 kW (9.9 kW rated) / 12 kW
Max. apparent power
8 kVA / 11 kVA / 12 kVA
Whole-home backup bypass
72 A
Grid-to-off-grid switching time
0 ms (under stated conditions)
Off-grid-to-grid switching time
0 ms (under stated conditions)
Third-party inverter connection
Supported on the backup side
Battery and expansion
Compatible batteries
EcoFlow OCEAN 2 LFP Battery 5kWh (5.02 kWh) and 8kWh (8.03 kWh); cross-compatible with PowerOcean LFP batteries
Batteries per tower
Up to 6 (floor stand)
Max. capacity with one inverter
12 modules: up to 60 kWh (5kWh packs) or 96 kWh (8kWh packs), dual tower
Parallel installation (on-grid)
Up to 5 inverters (up to 480 kWh with 8kWh packs)
Rated battery voltage
800 V
Specifications are subject to change by the manufacturer without notice.
Frequently asked questions
What is the difference between the 8, 10 and 12 kW models?
All share the same design, 3 MPPTs and 72 A backup bypass. They differ in rated output (8, 10 or 12 kW), maximum PV input (16, 20 or 24 kW) and maximum apparent power (8, 11 or 12 kVA).
How is OCEAN 2 Plus different from the standard OCEAN 2 inverter?
The standard OCEAN 2 single-phase inverter offers up to 6 kW AC output, up to 12 kW of PV and 2 MPPTs, with up to 6 stackable batteries. OCEAN 2 Plus adds higher outputs up to 12 kW, a third MPPT with up to 24 kW of PV, a 72 A whole-home bypass and up to 12 battery modules.
Do I need the EcoFlow Gateway or a separate smart meter?
No. Whole-home backup is integrated (72 A bypass, 0 ms switchover) and the inverter has a built-in smart meter. The OCEAN 2 Plus inverters are also not compatible with the EcoFlow single-phase Gateway, so use the integrated backup instead.
How much storage can I add?
Up to 12 OCEAN 2 battery modules per inverter, which is 60 kWh with 5kWh packs or 96 kWh with 8kWh packs, using two towers of up to 6 batteries. On-grid, up to 5 inverters can be paralleled.
Can I connect it to existing solar panels?
Yes. The backup side supports third-party inverter connection, so you can add storage and whole-home backup to an existing solar installation.
Can it be installed outdoors?
Yes. It is IP66 rated and suitable for indoor or outdoor floor-stand or wall-mounted installation.