Description
Fast-track grid connection with 200% solar absorption.
EcoFlow EF HD-P1-3.68K-S1 is a 3.68 kW single-phase residential hybrid inverter delivering 200% DC oversizing (7.36 kWp solar intake) and a certified 16.0 A AC export cap, engineered to streamline UK G98 and European micro-generation grid approvals.
16.0 A Certified Grid-Capped Export (3.68 kW)
Sits strictly within UK G98 and standard European 16 A single-phase notification limits, eliminating utility approval delays.
7,360 Wp High-Ratio Solar Intake (200% DC)
Channels abundant rooftop solar generation into daytime home loads and high-voltage PowerOcean storage.
Direct 800 V High-Voltage Battery Interface
Direct DC coupling to PowerOcean 5 kWh packs eliminates step-up conversion losses.
Dual 16 A High-Current MPPT Trackers, 100% compatible with modern 500W+ residential modules without current clipping.
More product details
Exceeding 16 A on single-phase UK grids requires formal DNO prior permission under G99, adding weeks of delay. The HD-P1-3.68K-S1 is factory-certified at 16.0 A, qualifying for instant G98 notification.
- Factory firmware limits continuous apparent power to 3,680 VA (16.0 A @ 230 V).
- Connects up to 7,360 W of rooftop solar, routing generation above 3.68 kW directly into high-voltage storage.
- Dual 16 A MPPT channels optimize East/West roof pitches down to low startup thresholds.
EcoFlow PowerOcean
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Automated emergency power with intuitive smartphone management.
Built-in automatic transfer relays isolate the home from utility grid disruptions, energizing critical emergency sub-panels in milliseconds. Senses grid voltage loss and transitions to off-grid backup mode automatically in under 20 ms. Real-time power flows, battery state-of-charge, and customizable self-consumption modes managed via EcoFlow App. IP65 cast-aluminum casing certified for indoor utility rooms or sheltered outdoor walls (-25 to +60 °C).
Takes 9680 W of PV on two trackers
600 V maximum. 20 A short-circuit per tracker. The 3.68 kW box keeps both strings on one cabinet.
Holds 15.3 kWh at 7.6 A
Battery voltage is 790 V rated, 800 V maximum. EF BD-5.1-S1 packs sit on their own pages.
Sits outside from minus 20 to 50 C
IP65, 40 dB, natural convection. The box is 679.6 x 182.7 x 280 mm without the IoT module.
Technical data
Maximizing residential solar absorption while streamlining utility grid connection permits.
3.68 kW / 16 A certified grid-cap compliant single-phase hybrid inverter.
Tailored specifically for the UK (ENA Engineering Recommendation G98) and European 16 A micro-generation standards, the HD-P1-3.68K-S1 locks continuous AC output at 3,680 W (16.0 A). It enables homeowners to install up to 7,360 Wp of solar across dual 16 A MPPT channels, channeling all generation above 3.68 kW directly into high-voltage storage with zero utility permitting hurdles.
- 16 A Grid Cap
- 3,680 VA
- 200% Solar DC Intake
- 7,360 Wp
- High-Voltage Bus
- 150–800 V
- High String Current
- 16 A / MPPT
Power & Grid Output
- Rated output power (W)
- 3680
- Maximum apparent power (VA)
- 3680
- Rated output voltage (V)
- 220/230/240, L+N+PE
- Rated output current (A)
- 16
- Maximum output current (A)
- 18.4
- Nominal frequency (Hz)
- 50/60
- Maximum output power (VA)
- 3680
- Nominal output voltage (V)
- 220/230/240, L+N+PE
Solar / PV Input
- Maximum PV power (W)
- 9680
- Maximum input voltage (V)
- 600
- MPPT voltage range (V)
- 90 - 520
- Maximum input current per MPPT (A)
- 18 (single PV input), 16 (dual PV input)
- Maximum short circuit current per MPPT (A)
- 20
- Number of MPPTs
- 2
Battery / Storage
- Rated voltage (V)
- 790
- Maximum voltage (V)
- 800
- Rated current (A)
- 7.6
- Maximum current (A)
- 7.6
- Maximum battery capacity (kWh)
- 15.3
Physical & Environmental
- European weighted efficiency
- >96%
- Topology
- Non-isolated
- Ingress protection rating
- IP65
- Operating temperature range (C)
- -20 to 50
- Weight (kg)
- 21.5
- Dimensions W x D x H (mm)
- 679.6 x 182.7 x 280 (without IOT and Wi-Fi module)
- Noise emission (dB)
- 40
- Cooling method
- Natural convection
- Ingress protection
- IP65
Efficiency & Communication
- European weighted efficiency
- >96%
- Communication
- RS485, CAN, Wi-Fi, Bluetooth, WAN, 4G
Project fit
Where this model fits.
Scenarios that show which projects the EcoFlow EF HD-P1-3.68K-S1 belongs in, what to verify before quoting, and when another model is the better pick.
UK Single-Family Homes under ENA G98 Fast-Track Rules (4–7.5 kWp Solar)
Single-phase residences in the UK and European jurisdictions subject to strict 16 A / 3.68 kW micro-generation limits.
Allows deploying a large 7.36 kWp solar array and up to 15.3 kWh battery storage while qualifying for instant G98 connection notification.
- BoundaryIf local grid connection rules permit higher single-phase export (e.g. 20 A / 26 A / 32 A) and the home runs a heat pump or EV charger, step up to the higher power models. ---
- If local grid connection rules permit higher single-phase export (e.g. 20 A / 26 A / 32 A) and the home runs a heat pump or EV charger, step up to the higher power models. ---
Documents
EcoFlow PowerOcean Single-phase datasheet (EU, EN)Product questions
What is the main advantage of the 3.68 kW model in the UK?
Instant DNO commissioning under G98 notification without prior approval. Under UK grid code G98, any inverter with a maximum continuous output $\le 16.0\text{ A}$ (3.68 kW @ 230 V) can be commissioned immediately and notified to the DNO afterwards, bypassing weeks of formal G99 grid connection applications.
System components
Recommended components
EF BD-5.1-S1 5.1 kWh LFP battery pack
Item number: DLK-ECOFLOW-EFBD51S1
The building-block pack for every PowerOcean stack, single- or three-phase; both HD-P1 and HD-P3 systems scale storage in 5.1 kWh steps of this same pack.
EF BD-B-S1 battery stack base unit
Item number: DLK-ECOFLOW-EFBDBS1
EcoFlow's own stack table lists EF BD-B-S1 x1 in every single-phase configuration (with EF HD-P1), the base unit any HD-P1 battery stack is built on.
EF BD-JC-S1 junction pack
Item number: DLK-ECOFLOW-EFBDJCS1
EcoFlow's own stack table lists EF BD-JC-S1 x1 in every three-phase configuration (with EF HD-P3), the junction pack any HD-P3 battery stack is built on.
Approved pairings
EcoFlow EF BD-5.1-S1Item number DLK-ECOFLOW-EFBD51S1Single-phase: EF BD-5.1-S1 x N plus one EF BD-B-S1 base. Three-phase: the same, plus one EF BD-JC-S1 junction pack, which the single-phase system does not use. Order the JC pack with every three-phase system. Max 45 kWh single-phase, 45.9 kWh three-phase.
EcoFlow EF BD-B-S1Item number DLK-ECOFLOW-EFBDBS1Single-phase: EF BD-5.1-S1 x N plus one EF BD-B-S1 base. Three-phase: the same, plus one EF BD-JC-S1 junction pack, which the single-phase system does not use. Order the JC pack with every three-phase system. Max 45 kWh single-phase, 45.9 kWh three-phase.
EcoFlow EF BD-JC-S1Item number DLK-ECOFLOW-EFBDJCS1Single-phase: EF BD-5.1-S1 x N plus one EF BD-B-S1 base. Three-phase: the same, plus one EF BD-JC-S1 junction pack, which the single-phase system does not use. Order the JC pack with every three-phase system. Max 45 kWh single-phase, 45.9 kWh three-phase.