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EcoFlow DELTA Pro Ultra X
EcoFlow DELTA Pro Ultra X

Whole-Home¹ Power. Unbound.

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EcoFlow DELTA Pro Ultra X is a whole-home² backup system, ready in just 7 days². With 12kW output and a 200A smart panel, it powers every circuit—even a 5-ton AC¹, keeping your home powered through storms, blackouts, and future moves.
World-Class Performance, Unrivaled Installation Speed
Ready in 7 Days¹
EcoFlow DELTA Pro Ultra X is a whole-home² backup system, ready in just 7 days². With 12kW output and a 200A smart panel, it powers every circuit—even a 5-ton AC¹, keeping your home powered through storms, blackouts, and future moves.

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SystemInstallationIntelligenceInvestmentSafetyEco-system

DELTA Pro Ultra X Available Now: Claim Your Early-Bird Offer!

  • Days

  • Hours

  • Minutes

  • Seconds

  • Pre-order Customers, Your $1,000 Off Awaits

  • Installation Subsidy Up To $800 Off

  • Exclusive Perks Pack

  • Up to 12 Months Interest-Free

- Terms & Conditions -
Massive Capacity & Output
12–36kW Output · 12–180kWh Capacity³ · Generator-Compatible for Unlimited Runtime⁴

12–36kW Output

High Power, High IQ

DELTA Pro Ultra X scales from 12 to 36kW⁷. With a new Adaptive Start algorithm, it intelligently identifies connected appliances and tailors startup for each, seamlessly handling surges up to 45kW and high-demand appliances like a 5-ton AC⁸.
1236
kW
One Unit

Get Through Any Outage

  • 12–180kWh⁹ Capacity—Power That Lasts
  • Generator-Ready for Unlimited Backup
  • 10kW Solar Surge
  • Start with 12kWh. Scale instantly to 180kWh.

    With up to 30 plug-in expansion batteries—no tools, no hassle. Power grows with your needs.

  • Plug your generator into DELTA Pro Ultra X for seamless backup.

    With the EcoFlow FlowMaster Generator Rectifier, you can charge while delivering up to 12kW output—no downtime, no compromise.⁴ Compatible with all major portable generators.⁸

  • Take in 10kW solar input—Enough to recharge 12kWh to 80% in approximately 1 hour.

    Even during storm season, enjoy a full daily recharge and steady, unshakeable energy.

The Core of Your Long-Term Energy Strategy

Two Future-Proof Energy Hubs

Two smart panel options power your whole-home system: Smart Home Panel 3 for circuit-level precision, or Smart Gateway for seamless backup. Both integrate solar, generators, and EV charging, with <20 ms switchover10.

  • Laundry
    TV
    Light
  • Smart Home Panel 3
  • Smart Gateway
  • Precision Power Control

    Connect essentials, track and control usage circuit by circuit, and fine-tune in real time. Prioritize your heat pump, throttle non-essentials, or monitor individual appliances.

  • Set-and-Forget Simplicity

    Built for homeowners who don’t want to micromanage. During outages, Gateway switches in <20 ms and auto-sheds non-essentials so fridges, lights, medical devices, and Wi-Fi run longer. Set essentials once—no need for updates or fine-tuning.

See other ways to connect DELTA Pro Ultra X to your home
Hassle-Free Setup, Guaranteed.
Installed in 7 Days—Save up to 80% on Time and Costs⁵
The wide-body inverter and battery are a stand-alone, off-grid unit—no wall mounting required. Its flexible design allows for faster, simpler approval than grid-tied systems. The exclusive quick-connect makes plug-and-play with the Smart Home Panel 3 or Smart Gateway effortless.
Traditional Residential Energy Storage System
30–90 Days
Total Process
Installation Cost: Approx.$10,000
Pricing Set by Installers
DELTA Pro Ultra X
7-Day
Lead Time (Includes 1-Day Installation)⁶
Approx $3,200³
Installation Cost
Home Standby Generators
30–90 Days
Total Process
Installation Cost: Approx. Up to $7,000
Pricing Set by Installers
The Fastest Installation⁷: 7 Days, 3 Steps
1
DAY 1-2: Installer Match
After your installation order is placed, we’ll match you with an EcoFlow Authorized Installer.
Energy That Can Move With You
DIY Solar + Plug-and-Play Batteries
Moving? Just unplug and take your energy independence along with you.
Skip roof installs—ground-mount panels yourself and reposition anytime.
Expand your system in just seconds with quick-connect plugs—no reinstallation, no electrician.
Smart & Reliable When It Matters Most
Auto-Recharging · 20ms Auto Switchover11 · 32 Circuits12 · Intelligent Control
1
2
3
Before the Storm: Get Alerts
When the Storm Hits: Lights Stay On
During the Storm: Extended Backup Time
Storm Guard Mode sends real-time alerts13 through the app and can automatically charge your DELTA Pro Ultra X to 100% using solar or grid power.
1
2
3
Before the Storm: Get Alerts
When the Storm Hits: Lights Stay On
During the Storm: Extended Backup Time
Storm Guard Mode sends real-time alerts13 through the app and can automatically charge your DELTA Pro Ultra X to 100% using solar or grid power.
Long-Term Value. Invest in Your Future.
Save Up to $6,000/Year · 3-Year ROI⁴
Saveup to
$
0
,
0
0
0
/ Year
Your 24/7 Money Saver
Here's a Typical Day of Savings
Day and night, the system intelligently shifts between solar, storage, and off-peak rates—maximizing every watt to get you the best deal. Here's what that might look like on a typical day of use.
Midnight – 9 AM: AI-TOU Savings
The system uses TOU electricity rates and solar forecasting to intelligently optimize charge times and save you money.
9 AM – 5 PM: Self-Powered & Automated Savings
Solar will run your appliances and charge the system batteries. Timed Circuit Control—Schedule all the circuits to turn on or off automatically—so you only use energy where it’s needed.
5 PM – Midnight: Solar at Work
Uses stored solar to run your entire home. Plug your EcoFlow PowerPulse EV charger directly into Smart Home Panel 3 or Smart Gateway to save even more.
Compatible with Existing Rooftop Solar11
No Wasted Watts
With the EcoFlow Current Sense Transformer, every extra watt is redirected to your DELTA Pro Ultra X battery—never wasted or sold back to the grid for pennies.
The Highest Safety Standards
The first16 EV-grade full-tab cells deliver higher capacity with lower resistance, less heat, and longer-lasting performance.
25% More17
Efficient power flow (thanks to lower resistance: 1.5 mΩ vs. 2 mΩ)
25% Less17
Self-Heating
1/10,000 Precision Screening18
Perfectly matched cells ensure identical capacity, voltage, and resistance, minimizing wear and maximizing battery life.
24/7 Self-Maintenance19
Automatic SOC balancing maximizes efficiency across the battery’s entire lifespan.
Local BMS – X-Guard® System
44+ safeguards20 and comprehensive monitoring ensures all-around safety. Safeguards: overcharge/discharge, extreme temperatures, short circuits, component failures, and more.
Cloud BMS – Big Data Protection
100+ anomaly20 detectors run 24/7, with instant alerts, local service response, and remote emergency support.
Power Protection
1.2M circuit samples/sec, millisecond-level anomaly detection21
Connection Monitoring
Intelligent cable and interface safeguards track heat, recognize faults, and allow instant shutdown for total electrical security.
Load Isolation
Continuous voltage/current monitoring with triple-layer isolation. Faulty devices are cut off automatically while critical loads stay powered.
Heat batteries to 10°C (50°F)22 in extreme cold for safe charging and longer runtime, while high-temp protection allows charging even at up to 45°C (113°F)22.
EV-Grade Full-Tab Cells
Durable Battery Pack
Dual BMS Protection
3-Level System Safety Architecture
Smart Extreme-Weather Protection
The first16 EV-grade full-tab cells deliver higher capacity with lower resistance, less heat, and longer-lasting performance. 25% More17: Efficient power flow (thanks to lower resistance: 1.5 mΩ vs. 2 mΩ) 17 25% Less: Self-Heating17
Always Connected. Always in Control.
EcoFlow OASIS: AI-Optimized Insights
Click here to explore our special plan for expert users.
Accessories to Maximize Your Ultra X
EcoFlow Smart Home Panel 3 (32 Circuits)
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EcoFlow Smart Gateway (200A)
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EcoFlow FlowMaster Generator Rectifier
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EcoFlow Generator Charging Adapter (NEMA L14-30P to 5P8 Port)
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EcoFlow Generator Charging Adapter (NEMA 14-50P to 5P8 Port)
Buy Now
EcoFlow Current Sense Transformer (200A)
Buy Now
EcoFlow Emergency Power Off Button
Buy Now
EcoFlow Smart Inlet Box Connection Cable (5P8 Port to 5P8 Port)
Buy Now
EcoFlow DELTA Pro Ultra XEcoFlow OCEAN Pro
What is it?An off-grid, plug-and-play whole-home backup system that keeps your home powered 24/7. Modular and portable, it can expand as needs grow, stores surplus solar and TOU to cut costs, and ensures backup during outages — compatible with generators and solar panels for seamless power.An on-grid residential battery system that works with solar, V2L EVs, and generators to deliver unlimited whole-home backup. It lets homeowners maximize solar self-consumption, save under TOU by charging off-peak and using at peak hours, and earn extra by selling power back to the grid or joining VPPs.
Grid Connection
Off-grid
On-grid
Who is it for?Homeowners who:

Want a simple and affordable whole-home backup system.

Value portability and easy expansion — easy to move when relocating and simple to add capacity.

Enjoy hands-on setup and DIY energy control.

Homeowners who:

Want a comprehensive home energy solution.

Live in areas with extended power outages and want reliable backup power.

Want to earn by selling power to the grid or VPP and maximize renewable incentives.

Use CaseFast backup for outages, critical loads, and flexible expansion in the future.Long-term energy independence, bill savings, full-home solar integration.
InstallationPlug-and-play system with quick setup by you or your electrician — typically installed within 7 days of delivery.Requires certified installer with local utility & authority having jurisdiction approval.

How to Choose

Need a DIY backup system that’s simple to set up?

Want to start small and easily expand as your power needs grow?

Want a portable system you can move and adapt to your home?

Currently Viewing

Want to save on utility bills through solar generation?

Ready to work with an installer for permits and solar setup?

Want a turnkey, utility-connected system?

General Disclaimer

*EcoFlow reserves the right to modify product offerings and disclaimers without prior notice. All claims are subject to the official product documentation. **Unless otherwise noted, all images, videos, and screen display contents about the product itself on this page are for reference only. Actual product effects (including but not limited to appearance, color, and size) and screen display contents (including but not limited to backgrounds, UI, and illustrations) may vary. ***Unless otherwise noted, all above data comes from EcoFlow Labs in a controlled environment and is for reference only. The actual data may vary slightly depending on the usage environment, device condition, software version, and other factors. ****Unless specifically stated, the advertising claims on this page are for comparison with EcoFlow products series.