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EcoFlow OCEAN 2 HD-P3-12K0-S2 (12 kW three-phase hybrid, 2026 flagship)
EcoFlow Hybrid Inverter

EcoFlow OCEAN 2 HD-P3-12K0-S2 (12 kW three-phase hybrid, 2026 flagship)

EcoFlow's second-generation three-phase home storage system: a 12 kW hybrid inverter that stacks wire-free onto OCEAN 2 LFP battery modules, with whole-home backup, a built-in smart meter and HEMS energy management in one tower.

  • Whole-home three-phase backup, 0 ms load-side switchover — 63 A bypass built in, no backup box
  • Scales to 60 kWh on one inverter (up to 12 stackable LFP modules, 10,000+ cell cycles, 15-year warranty)
  • 3 MPPTs, up to 24 kWp PV on the 12 kW model; HEMS with 500+ dynamic-tariff integrations
  • VDE-AR-N 4105 / EN 50549 listed · German PV-wholesale stock · request a quote
Three-Phase
Phase
97.8%
Max. efficiency
720~960 V
Battery voltage
IP66
Ingress protection
Manufacturer
EcoFlow
Model code
EF HD-P3-12K0-S2
Item no.
DLK-ECOFLOW-EFHDP312K0S2
Delivery
Germany delivery estimate: EUR 39–90 · The final delivery charge is included in your Proforma.
Orderable · lead time confirmed after order

Plan with EF HD-P3-12K0-S2

New system, extension or replacement? Linker Advisor starts from this article and asks only for what is still open — existing model, quantity, postcode, installation date.

Trade price
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Required to install — not in the box
EcoFlow OCEAN 2 Battery 5.02 kWh (EF BD-5-S2) 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.
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EcoFlow OCEAN 2 LFP Battery 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).
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Figures transcribed from the manufacturer datasheet on file. Confirm your grid code and configuration with our engineers before ordering.

  • GoodWe · SAJ · Pylontech · EcoFlow · Chint paired from the maker’s own lists
  • Datasheets on file for every item
  • Within 24 h engineering response
  • MOQ 1 unit · EU delivery
  • Engineering-checked configurations
One stack, whole-home coverage
System logic

One stack, whole-home coverage

Hybrid inverter and stackable LFP modules in one tower: grid connection, 0 ms backup switching and metering in the same enclosure.

Whole-home three-phase backup, 0 ms load-side switchover — 63 A bypass built in, no backup box
Scales to 60 kWh on one inverter (up to 12 stackable LFP modules, 10,000+ cell cycles, 15-year warranty)
3 MPPTs, up to 24 kWp PV on the 12 kW model; HEMS with 500+ dynamic-tariff integrations
Integrated whole-home backup with 0 ms load-side switchover
Headline feature

Integrated whole-home backup with 0 ms load-side switchover

EcoFlow's headline feature: backup for the whole house is built into the inverter itself — a 63 A whole-home bypass on the three-phase units — so no external backup box and no extra rewiring are needed.

On grid loss the load side switches in 0 ms, keeping lights, appliances and IT running without noticeable interruption.
EcoFlow's own footnote: the 0 ms figure applies under compliant, stable grid conditions with total load below the rated backup output.
In pictures

Inspect it before you spec it.

Official renders, installation photos and system panels for this model line.

Official manufacturer product render
Product

Official manufacturer product render

Documentation

Specifications

Every value exactly as published in the official EF HD-P3-12K0-S2 documentation.

MPP trackers / strings3 MPPTs, 1 string per MPPT
Max. input power per MPPT8,000 W
Max. total PV input power24,000 W (12 kW model).Family: 6K=12,000 / 8K=16,000 / 10K=20,000 / 12K=24,000 W
Max. input voltage1,000 V
PV operating voltage range50–1,000 V; MPPT range at rated power 500–850 V
MPPT start-up voltage120 V (low start-up — begins generating earlier in the day)
Max. input / short-circuit current per MPPT16 A / 20 A
Rated output power (on-grid)12,000 W (12 kW model).Family: 6,000 / 8,000 / 10,000 / 12,000 W
Max. apparent power13,200 VA (12 kW model).Family: 6,600 / 8,800 / 11,000 / 13,200 VA
Nominal / max. output current17.4 A @230 V nominal; max. 21.4 A (12 kW model)
Grid connectionThree-phase 3L+N+PEL-L 380/400 V, L-N 220/230 V · 50/60 Hz · TN-S, TN-C, TN-C-S, TT systems
Max. AC input current (whole-home bypass)63 A — integrated whole-home backup, no external backup box
Backup (off-grid) output12,000 W nominal (12 kW model)THDu ≤2% · 100% unbalanced load support
Switchover time (grid↔off-grid)0 ms load-side, both directions (per EcoFlow conditions: compliant, stable gridload below rated backup output)
Power factor / THDi0.8 leading – 0.8 lagging; THDi ≤3% at full load
Parallel installationUp to 5 cascaded inverters on-gridup to 2 cascaded off-grid
Battery bus800 V rated; 720–960 V range; CAN communication
Max. battery capacity per inverterUp to 12 OCEAN 2 battery modules (up to 60 kWh with one inverter)
Stack rules5 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 · >4 packs per stack requires local-regulation and firmware check
Module performance5.02 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 compatibilityWorks with EcoFlow PowerOcean gen-1 batteries and inverters (hybrid stacking officially supported)
Max. efficiency97.8%
Self-consumption (light load)50 W (measured <300 W total load, lab conditions)
Integrated protectionsGFCI, AFCI, PV insulation resistance detection, anti-islanding, PV reverse-polarity protection, emergency power off (EPO), AC over-current / short-circuit / over-voltage protection
Surge protectionType II DC + Type II AC SPD integrated
Ingress protection / environmentIP66; outdoor/indoor; relative humidity 0–100%
Operating temperature-20 °C to +60 °C (derating above 40 °C)storage -30 °C to +60 °C · altitude up to 3,000 m (derating above 2,000 m)
Communication / UIBluetooth, WiFi, RS485, CANLED + EcoFlow app (Pro app for installers)
Dimensions / weight (inverter)680 × 203 × 406.5 mm (W×D×H)approx. 36.5 kg · floor stand or wall mounted · anti-theft supported
Warranty15 years on inverter and battery (capacity-retention terms per EcoFlow warranty policy)
Packaging (VPE)1 per carton, 8 per pallet
Full datasheet (PDF) Ask an engineer
ProductEcoFlow OCEAN 2 HD-P3-12K0-S2 (12 kW three-phase hybrid, 2026 flagship)

Complete the system

Balance-of-system and accessories paired with this model. Every pairing follows the manufacturer's official compatibility list.

Required
EcoFlow OCEAN 2 LFP Battery 5.02 kWh (BD-5-S2)
[1]

EcoFlow OCEAN 2 LFP Battery 5.02 kWh (BD-5-S2)

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.
View product →
EcoFlow OCEAN 2 LFP Battery Base
[2]

EcoFlow OCEAN 2 LFP Battery 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).
View product →
Recommended
Optional
EcoFlow Battery Junction Box
[1]

EcoFlow Battery Junction Box

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.
View product →
EcoFlow Battery Stack Bridge
[2]

EcoFlow Battery Stack Bridge

Official 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.
View product →
EcoFlow PowerOcean LFP Battery 5.1 kWh (BD-5.1-S1, gen 1)
[3]

EcoFlow PowerOcean LFP Battery 5.1 kWh (BD-5.1-S1, gen 1)

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 official matrix) — useful when extending a gen-1 install instead of replacing it.
View product →
Approved pairings

What this unit is approved to run with.

Every pairing below traces to a manufacturer compatibility list, by document version and date. A pairing only one maker lists is marked; we quote it, an engineer confirms it.

EcoFlow OCEAN 2 Battery 5.02 kWh (EF BD-5-S2) EcoFlow OCEAN 2 Battery 5.02 kWh (EF BD-5-S2) Item no. DLK-ECOFLOW-EFBD5S2 On EcoFlow's compatibility list | 1-12 modules EcoFlow OCEAN 2 Battery 8.0 kWh (EF BD-8-S2) EcoFlow OCEAN 2 Battery 8.0 kWh (EF BD-8-S2) Item no. DLK-ECOFLOW-EFBD8S2 On EcoFlow's compatibility list | 1-12 modules

Pick the rating

EcoFlow OCEAN 2 (Three-Phase) family. Same engineering, different size.

4 ratings Same series, same engineering — your model is highlighted.
EcoFlow OCEAN 2 HD-P3-6K0-S2 (6 kW three-phase hybrid, 2026 flagship) Sign in for pricing
EcoFlow OCEAN 2 HD-P3-8K0-S2 (8 kW three-phase hybrid, 2026 flagship) Sign in for pricing
EcoFlow OCEAN 2 HD-P3-10K0-S2 (10 kW three-phase hybrid, 2026 flagship) Sign in for pricing
EcoFlow OCEAN 2 HD-P3-12K0-S2 (12 kW three-phase hybrid, 2026 flagship) This model Sign in for pricing
Phase
Same across the family: Three-Phase
Max. efficiency
Same across the family: 97.8%
Battery voltage
Same across the family: 720~960 V
Ingress protection
Same across the family: IP66
Weight
Same across the family: Approx. 36.5 kg
Dimensions
Same across the family: 680×203×406.5 (W×D×H) mm

Every figure comes straight from the manufacturer's official datasheet.

Availability & compliance 1

Yes. EcoFlow's OCEAN 2 three-phase datasheet lists VDE-AR-N 4105 among its compliance standards.

  • Grid-code compliance: VDE-AR-N 4105 and EN 50549-1/-10, plus IEC 62116 anti-islanding, G98/G99/G100, TOR Erzeuger Type A, C10/C11 and further EU grid codes
  • Inverter safety: IEC/EN 62109-1/-2
  • Battery certification: IEC/EN 62619, IEC/EN 62040-1, IEC/EN 62477-1, ISO 13849-1, VDE-AR-E 2510-50, shipped under UN 38.3, CE-marked
  • Output: 3L+N+PE at 230/400 V, 50 Hz, a standard German three-phase connection
  • As a grid-tied storage system it is registered in the Marktstammdatenregister as part of the normal commissioning process (regulatory step, not a product spec)
  • Request the current certificate revision with your quote for the grid-operator filing

Configuration 3

The OCEAN 2 LFP battery is modular and stacks wire-free, with mixed-generation support under specific limits.

  • Module sizes: 5.02 kWh (BD-5-S2) and 8 kWh (BD-8-S2)
  • Per tower: up to 6 modules floor-standing (3 wall-mounted)
  • Per inverter: per EcoFlow's official compatibility matrix, up to 12 modules per three-phase OCEAN 2 inverter (up to 60 kWh with one inverter), with multiple towers connected in parallel
  • Mixed stacking of OCEAN 2 and previous-generation PowerOcean packs is officially supported but capped at 4 modules per stack in mixed use
  • EcoFlow's own caveat: installing more than 4 packs in one stack requires checking local regulations and that the current firmware version supports 6-pack stacks
  • Each 5 kWh module contributes 3.4 kW discharge / 2.5 kW charge

No separate backup box is required, the three-phase OCEAN 2 switches the load side in 0 ms on grid failure via an integrated bypass.

  • Integrated bypass: 63 A whole-home bypass
  • EcoFlow's conditions for the 0 ms figure: local grid-code compliance, an open-circuit grid state, total load below the rated backup output, and stable grid conditions, quote it with that footnote
  • The backup side also accepts existing third-party PV inverters
  • Generators can be integrated via an ATS for extended outages
  • Off-grid parallel operation is limited to 2 cascaded inverters (5 on-grid)

A grid-point smart meter is built into the OCEAN 2, so in the standard topology no external meter is required.

  • EcoFlow lists "built-in smart meter, save 50+ minutes" as an installation feature
  • Standard topology: all loads behind the backup output, no external meter needed
  • An external EcoFlow smart meter is only needed when part of the household load is NOT wired behind the backup output and the system must still see total grid import/export for self-consumption optimisation and export limiting
  • Clarify the load topology before quoting

Operation & warranty 2

Warranty

EcoFlow grants a 15-year warranty on both the battery and the power electronics (pv magazine Deutschland, July 2026, confirming the "15 YEAR WARRANTY" on EcoFlow's own datasheets and product pages). Capacity-retention terms follow EcoFlow's published warranty policy, request the warranty document for exact figures; no retention percentage is printed on the OCEAN 2 datasheets.

Maintenance

  • Commissioning runs through the EcoFlow app (installers use the Pro app with a 3-step commissioning flow)
  • Firmware updates arrive over the air
  • A cloud BMS with early-warning alerts, self-calibration and remote troubleshooting (EcoFlow claims 80% remote troubleshooting accuracy) reduces the need for physical intervention

Yes, this is a core selling point for German households on dynamic tariffs.

  • The integrated HEMS supports more than 500 dynamic electricity tariffs in Europe, charges in low-price windows and discharges during peaks (pv magazine Deutschland)
  • Integrates SG-Ready heat pumps and other smart-home components
  • Monitoring and control run via the EcoFlow app, the web portal or the PowerInsight 2 wall monitor
  • EcoFlow's ecosystem also pairs the PowerPulse EV charger, PowerHeat heat pump and Smart Plug under the same energy manager
Next step

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