EcoFlow DELTA Pro Ultra X 12000W Inverter

Whole-Home Power. Unbound.

12-36kW Output - High Power. High IQ.
DELTA Pro Ultra X scales from 12 to 36kW. 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 AC.

Get Through Any Outage

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. Compatible with all major portable generators.

10kW Solar Surge
Take in 10kW solar input-enough to recharge 12kWh to 80% in just around 1 hour. Even during storm season, enjoy a full daily recharge and steady, unshakeable energy.

Installed in 7 Days
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.

Smart & Reliable When It Matters Most
• Auto-Recharging
• 20ms Auto Switchover
• 32 Circuits
• Intelligent Control

Before the Storm: Get Alerts
Storm Guard Mode sends real-time alerts through the app and can automatically charge your DELTA Pro Ultra X to 100% using solar or grid power.

When the Storm Hits: Lights Stay On
EcoFlow DELTA Pro Ultra X, paired with the Smart Home Panel 3 or Smart Gateway, switches your whole home from grid to battery power in under 20ms-faster than a blink. The lights stay on, Wi-Fi stays up, and even the game console keeps running. Zero delays. Zero disruptions. (Smart Home Panel and Smart Gateway Sold Separately).

During the Storm: Extended Backup Time
With Smart Home Panel 3, tag appliances by priority in the app. Essentials stay powered while non-essentials are throttled-extending backup time by up to 42%. EcoFlow AI Assistant fine-tunes power use in real time, adapting to weather, usage, and solar input.

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 Solar - No Wasted Watts
With the EcoFlow Current Sense Transformer, every extra watt is redirected to your DELTA Pro Ultra X Smart Extra battery-never wasted or sold back to the grid for pennies. (Battery Not Included)

The Highest Safety Standards

Dual BMS Protection
Local BMS - X-Guard System: 44+ safeguards and comprehensive monitoring ensures all-around safety. Safeguards: overcharge/discharge, extreme temperatures, short circuits, component failures, and more Cloud BMS - Big Data Protection: 100+ anomaly detectors run 24/7, with instant alerts, local service response, and remote emergency support.

3-Level System Safety Architecture
Power Protection: 1.2M circuit samples/sec, millisecond-level anomaly detection for inverter and battery. 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.

Smart Extreme-Weather Protection
Heats batteries in extreme cold for safe charging and longer runtime, while high-temp protection allows charging even at up to 45 Degree C (113 Degree F).