Description
Zero-glitch emergency power with whole-home current pass-through.
EcoFlow OCEAN 2 HD-P1-6K0-S2 is a next-generation 6 kW single-phase residential hybrid inverter delivering 200% DC oversizing (12 kWp solar intake), a massive 72 A grid pass-through bypass, and true 0 ms online UPS backup, engineered for modern all-electric residences.
True 0 ms Seamless Online UPS Backup
Hardware-level instant transfer ensures zero power interruption during grid failure, keeping sensitive home servers, gaming PCs, and medical devices live without micro-glitches.
Massive 72 A High-Current Grid Bypass
Passes through up to 72 A of utility grid current to run whole-home circuits, EV wallboxes, and heat pumps simultaneously without main panel sub-division.
12,000 W Solar Input with 900 V Strings
Dual 16 A MPPT channels accept high-voltage solar strings, reducing conduit wiring and improving conversion efficiency across multi-pitch roofs.
Direct Cable-Free OCEAN 2 Stacking
Interlocks with OCEAN 2 high-density battery modules (5.02 kWh or 8.0 kWh) with internal busbars and built-in auto-heating.
More product details
Standard hybrid inverters take 10–20 ms to switch to backup mode, causing sensitive computers, smart home hubs, and medical equipment to reboot. The OCEAN 2 integrates a true 0 ms solid-state transfer stage.
- True 0 ms seamless transfer prevents memory loss or dropouts on sensitive domestic electronics.
- Massive 72 A continuous AC bypass contactor eliminates the need to isolate small emergency backup sub-circuits.
- Powers whole-home single-phase distribution boards directly from grid or solar-plus-storage.
EcoFlow OCEAN 2 Plus (Single-Phase)
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EcoFlow OCEAN 2 HD-P1-6K0-S2 (6 kW single-phase hybrid, 2026 flagship)
Longer solar strings with direct modular battery interlocking.
Elevating maximum PV voltage to 900 V allows longer series module strings, reducing DC cable runs from distant roof pitches while direct battery interlocking eliminates external DC conduits. Dual 16 A MPPT channels (Isc 24 A) optimize modern 500W+ high-power bifacial solar modules. Internal push-in busbars pass high-voltage power and communication directly between inverter and battery modules. IP66 cast-aluminum casing certified for clean indoor utility rooms or exposed outdoor walls (-25 to +60 °C).
Runs 26.1 A on one phase
Rated current is 26.1 A at 230 V. Maximum is 32.1 A. Apparent power is 6600 VA on L+N+PE.
Holds 12 modules on one inverter
Battery bus is 800 V rated, 720 to 900 V. Floor stacks take six modules. Wall stacks take three.
Talks over Bluetooth, WiFi, RS485 and CAN
The meter for this topology sits in the inverter. The EcoFlow app and the Pro app both reach it.
Technical data
Next-generation single-phase residential hybrid energy management engineered for uncompromising home power security.
12 kWp solar intake with massive 72 A grid pass-through and true 0 ms UPS switching.
EcoFlow's second-generation single-phase hybrid inverter, the HD-P1-6K0-S2 delivers 6,000 W continuous AC power backed by a massive 72 A grid pass-through capability. With true 0 ms UPS transfer and 900 V PV input, it protects sensitive household equipment while absorbing up to 12,000 Wp of rooftop solar into high-voltage storage.
- Single-Phase Power
- 6,000 VA
- Heavy Grid Bypass
- 72 A
- True Online UPS
- 0 ms
- 200% Solar DC Intake
- 12,000 Wp
Inverter: PV Input
- MPP trackers / strings
- 3 MPPTs, 1 string per MPPT
- Max. input power per MPPT
- 8 kW
- Max. total PV input power
- 12 kW (6 kW model).Family: 6K=12,000 / 8K=16,000 / 10K=20,000 / 12K=24 kW
- Max. input voltage
- 900 V
- PV operating voltage range
- 50–900 VMPPT range at rated power 500–810 V · start-up 120 V
- Max. input / short-circuit current per MPPT
- 16 A / 20 A
Inverter: AC Output & Backup
- Nominal output power (on-grid)
- 6 kW (6 kW model). Family: 6,000 / 8,000 / 10,000 / 12 kW
- Max. output apparent power
- 6.6 kVA (6 kW model).Family: 6,600 / 8,800 / 11,000 / 12 kVA
- Nominal / max. output current
- 26.1 A @230 V nominal; max. 32.1 A (6 kW model)
- Grid connection
- Single-phase L+N+PE220/230 V AC · 50/60 Hz · TN-S, TN-C, TN-C-S, TT systems
- Max. AC input current (whole-home bypass)
- 72 A, integrated whole-home backup connection, no external backup box
- Backup (off-grid) output
- 6 kW nominal (6 kW model)THDu ≤2% · supports third-party inverter connection on the backup side
- Switchover time (grid↔off-grid)
- 0 ms load-side, both directions (per EcoFlow conditions: compliant, stable gridload below rated backup output)
- Power factor / THDi
- 0.8 leading – 0.8 lagging; THDi ≤3% at full load
- Parallel installation
- Up to 5 cascaded inverters on-gridup to 2 cascaded off-grid
Battery Interface & Storage Scaling
- Battery bus
- 800 V rated; 720–900 V range; CAN communication
- Max. battery capacity per inverter
- Up to 12 OCEAN 2 battery modules, up to 60 kWh with a single inverter, 300 kWh with 5 inverters in parallel
- Stack rules
- 5 kWh (BD-5-S2) or 8 kWh (BD-8-S2) modules: max 6 per floor-standing stack / 3 wall-mountedmixed OCEAN 2 + PowerOcean gen-1 stacking capped at 4 per stack
- Module performance
- 5.02 kWh nominal / 4.85 kWh usable per BD-5-S23.4 kW discharge, 2.5 kW charge, 4.08 kW max discharge (≥20 min) per module
- Cross-generation compatibility
- Works with EcoFlow PowerOcean gen-1 batterieshybrid stacking supported
Efficiency & Protection
- Max. efficiency
- 97.6%
- Deep power-saving mode / light-load self-consumption
- 15 W deep power saving50 W light-load self-consumption (vs. a typical 160 W system: EcoFlow estimates up to 6,000 kWh saved over the system lifespan, internal testing)
- Integrated protections
- GFCI, AFCI, PV insulation resistance detection, anti-islanding, PV reverse-polarity protection, emergency power off (EPO), AC over-current / short-circuit / over-voltage protection
- Surge protection
- Type II DC + Type II AC SPD integrated
General
- Ingress protection / environment
- IP66; outdoor/indoor; relative humidity 0–100%
- Operating temperature
- -20 °C to +60 °Cstorage -30 °C to +60 °C · altitude up to 3,000 m (derating above 2,000 m)
- Communication / UI
- Bluetooth, WiFi, RS485, CANLED + EcoFlow app (Pro app for installers)
- Dimensions / weight (inverter)
- Approx. 679.6 × 203.2 × 406.5 mm (W×D×H)approx. 35.5 kg per EcoFlow's brochure · floor stand or wall mounted · anti-theft supported
- Warranty
- 15 years (per EcoFlow OCEAN 2 Plus brochurecapacity-retention terms per EcoFlow warranty policy)
Project fit
Where this model fits.
Scenarios that show which projects the EcoFlow OCEAN 2 HD-P1-6K0-S2 (6 kW single-phase hybrid, 2026 flagship) belongs in, what to verify before quoting, and when another model is the better pick.
Large Single-Phase Electrified Residences (8–12 kWp PV) Seeking 0 ms Power Security
Single-family homes with 32 A or 40 A single-phase service running home offices, servers, or heat pumps demanding zero-interruption backup power.
72 A bypass allows powering the entire domestic panel, while 0 ms UPS eliminates computer reboots during storms.
- BoundaryIf local single-phase connection limits permit higher continuous export (36 A, 45 A, or 54 A), step up to the 8 kW, 10 kW, or 12 kW models. ---
- If local single-phase connection limits permit higher continuous export (36 A, 45 A, or 54 A), step up to the 8 kW, 10 kW, or 12 kW models. ---
Documents
EcoFlow OCEAN 2 Plus Single-Phase Brochure / Spec EcoFlow OCEAN 2 Plus Single-Phase Installation GuideProduct questions
What is the difference between 0 ms UPS transfer and standard 10–20 ms transfer?
0 ms transfer means zero power dip. Sensitive electronics never reboot. Standard inverters use mechanical relays that take 10 to 20 milliseconds to close, causing desktops, NAS drives, and smart home gateways to lose power and reboot. The OCEAN 2's true 0 ms online architecture maintains continuous phase synchronization, resulting in zero voltage dropout.
System components
Required components
EcoFlow OCEAN 2 LFP Battery 5.02 kWh (BD-5-S2)
Item number: DLK-ECOFLOW-EFBD5S2
The OCEAN 2 is a battery-based system: at least one OCEAN 2 LFP module is required for storage, backup and HEMS operation. Each 5.02 kWh module (4.85 kWh usable) delivers 3.4 kW discharge / 2.5 kW charge and stacks wire-free under the inverter.
EcoFlow OCEAN 2 LFP Battery Base
Item number: DLK-ECOFLOW-OCEAN2-BASE
Every floor-standing battery tower sits on the OCEAN 2 battery base with adjustable levelling feet, spirit level and click-on stacking terminal, the standard mounting for up to 6 modules per stack (wall mounting up to 3 modules uses wall brackets instead).
Recommended components
EcoFlow OCEAN 2 LFP Battery 8 kWh (BD-8-S2)
Item number: DLK-ECOFLOW-EFBD8S2
The larger 8 kWh module reaches higher capacity in fewer stacking steps, same tower format, up to 6 per floor stack and 12 modules per OCEAN 2 Plus inverter per EcoFlow's compatibility matrix.
EcoFlow Smart Meter (external grid-point meter)
Item number: DLK-ECOFLOW-SMART-METER
Only needed when not all household loads are wired behind the backup output: the external meter then provides the grid import/export measurement the HEMS needs for self-consumption optimisation and export limiting. In the standard whole-home-backup topology the built-in meter covers this.
Optional components
EcoFlow Battery Junction Box
Item number: DLK-ECOFLOW-EFBDJCS1
For multi-tower installations: cascaded battery stacks connect through a junction box (built-in 1500 V DC / 32 A fuse, battery switch, B-COM port); up to 3 junction boxes can run in parallel. Not needed for a single integrated stack under the inverter. Confirm the OCEAN 2-compatible junction-box variant when ordering.
EcoFlow Battery Stack Bridge
Item number: DLK-ECOFLOW-STACK-BRIDGE
Bracket for dual-tower battery systems: rigidly ties two adjacent towers together (base spacing 94.6-104.5 mm for OCEAN 2 bases). EcoFlow recommends securing both sides of each battery unit, 12 brackets for two 6-module towers, and seismic restraint in seismic zones.
EcoFlow PowerOcean LFP Battery 5.1 kWh (BD-5.1-S1, gen 1)
Item number: DLK-ECOFLOW-EFBD51S1
Cross-generation expansion path: existing PowerOcean gen-1 packs can be mixed with OCEAN 2 packs in one system (max 4 modules per stack in mixed use per the matrix), useful when extending a gen-1 install instead of replacing it.
Approved pairings
EcoFlow OCEAN 2 Battery 5.02 kWh (EF BD-5-S2)Item number DLK-ECOFLOW-EFBD5S2Up to 12 EF BD-5-S2 modules per inverter; a stack holds 6 floor-mounted or 3 wall-mounted, so 12 modules means two towers. Mixed stacking with the older PowerOcean LFP module is supported (OCEAN 2 battery manual p7).
EcoFlow OCEAN 2 Battery 8.0 kWh (EF BD-8-S2)Item number DLK-ECOFLOW-EFBD8S2Up to 12 EF BD-5-S2 modules per inverter; a stack holds 6 floor-mounted or 3 wall-mounted, so 12 modules means two towers. Mixed stacking with the older PowerOcean LFP module is supported (OCEAN 2 battery manual p7).