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.

EcoFlow DELTA Pro Ultra X Whole-Home Backup Power
- 100% Whole-Home Power Station: Delivers 12–36kW output and 12–180kWh capacity.
- Plug & play design, installed in 7 days. Save up to 80% on time and cost.
- Smart & reliable when it matters most, 20ms auto switchover.
- Save up to $6000/year, 3-year ROI.
- End-to-end system protection, the highest safety standards.
*12kW/12kWh based on standard bundle (1 × EcoFlow DELTA Pro Ultra X Inverter + 2 × Smart Extra Batteries). Max 36 kW / 180 kWh with expansion. Actual performance varies by configuration.
⚠ Notice: Rooftop solar charging for DPUX via SHP3/Gateway requires current transformers.
Up To 60% Off Add-Ons
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EcoFlow DELTA Pro Ultra X
Whole-Home Power. Unbound.
12–36kW Output
High Power. High IQ.
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.
Energy That Can Move With You
DIY Solar + Plug-and-Play Batteries
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.
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.
What's in the box?
Specs
Standard Capacity
12.288kWh, 6144Wh x 2
Maximum Capacity with 1 inverter
61.440kWh, 6144Wh x 10
AC Output
12kW, 120/240V, 60Hz
Up to 36kW in 3 parallel units
Maximum Capacity with 3 inverters
184.32kWh, 6144Wh x 30
Net Weight (lb)
Inverter: 34.5±0.2kg(70.06±0.44 lb)
Battery: 50.5±0.2kg(111.3±0.44 lb)
Dimension (mm)
Inverter: 675 × 475 × 230 mm (26.6 × 18.7 × 9.06 in.)
Battery:660 × 455 × 204 mm (26 × 18 × 8 in.)
Battery Chemistry
LFP
Warranty
5 years
Screen
✓
Extra Battery
✓
AC Outlets
NEMA 5-20 (x2) 120V 20A
NEMA L14-30 (x1) 120/240V 30A
NEMA 14-50 (x1) 120/240V 50A
UPS
<10ms standalone, <20ms with Smart Home Panel 3
Rated AC Input Power
12kW,100/200-120/240V, 50A
PV Input
Total 10kW, 2 ports
80-500V/15A, 5000W Max Each
Noise Level
Noise level <30 dB at 0.5 m (ambient temperature 25 °C, 4 kW output)
IP Rating
IP54
Battery Temperature
Operating&Storage temp: −4°F to 113°F (−20°C to 45°C)
Inverter Temperature
Operating&Storage temp: −4°F to 122°F (−20°C to 50°C)