EcoFlow

STREAM Ultra X 3.84 kWh Plug-in Solar Kit (4× 450W Panels + 800W Microinverter, 2,800W Solar Input, UK)

Plug-inBattery includedUK G98

EcoFlow's full plug-in solar kit for the UK market — STREAM Ultra X 3.84 kWh AC-coupled battery with 4 MPPT and 2,800 W solar input, paired with 1,800 W of rigid panels (4× 450 W) and an 800 W STREAM Microinverter. Dual AC ports deliver 1,200 W of output for household appliances; the LFP battery is rated for 6,000 cycles and is expandable to 21 kWh by stacking up to six Ultra X units. IP65 panels and storage, app-controlled with AI tariff optimisation.

1800W

DC panel total

1200W

AC output

3.84

kWh battery

1823

kWh / year

£1659.00

£0.922 per watt DC

View priceManufacturerDatasheet

System

Kit typePlug-in
Total DC wattage1800 W
AC output1200 W
Expected annual output1823 kWh
Panel count4
SKUEFSTREAMULTRAX-1800W-UK

Panel

BrandEcoFlow
Model450W Rigid Solar Panel
Wattage each450 W
Cell typeN-Type TOPCon
BifacialNo

Inverter

BrandEcoFlow
ModelSTREAM 800W Microinverter (paired with STREAM Ultra X)
TypeMicroinverter
Warranty10 years

Battery

BrandEcoFlow
ModelSTREAM Ultra X (3.84 kWh LFP, expandable to 21 kWh)
Capacity3.84 kWh
ChemistryLFP
Cycle life6,000 cycles
Warranty10 years

Mounting & Install

Mounting includedNo
Mounting typeOptional (sold separately)
Plug typeUK 3-pin
Install difficultyPlug-and-play

Smart Features

App monitoringEcoFlow
Wi-Fi enabledYes

Compliance & Certifications

UK G98 (≤16A)Yes
UK G99No
VDE-AR-N 4105 (DE)No
CE markedYes
CertificationsCE, UKCA, G98

Warranty

Overall10 years
Panel25 years
Inverter10 years
Battery10 years

Availability

Country of manufactureCN
Available inUnited Kingdom
plug-and-playwith-batterystream-ultra-xecoflowuk-g98expandablelfp

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