EcoFlow DELTA Pro Ultra
Payback in as Fast as 2.5 Years: The Ultimate Movable Home Battery Solution
- Around 75% lower upfront cost vs. traditional solar battery system, with a minimum payback period of 2.5 years ¹
- 7.2kW output per unit, scalable to 21.6kW, supporting heavy loads like 4-ton air conditioners
- Start with 6kWh and expand to 90kWh, adapting to household size or energy demand
- 20 ms auto-switchover, 12 customizable circuits with single-circuit control by using the EcoFlow Smart Home Panel 2
- 5.6kW-16.8kW solar input. One hour of solar for one day of power
- Compatible with 3-12kW portable gas generators for extended power outages
- PowerPulse EV Charger (9.6kW) delivers 35 miles per hour. With DELTA Pro Ultra and Smart Home Panel 2, turning solar into mileage
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30% IRA Tax Refund
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One Powers All
EcoFlow DELTA Pro Ultra
- EcoFlow AppIntelligent settings, remote control, and monitor power usage data in the EcoFlow app.EcoFlow DELTA Pro Ultra7.2kW output per unit, scalable to 21.6kW, supporting heavy loads like 4-ton air conditioners.² Start with 6kWh capacity and expand to 90kWh, adapting to household size or energy demands.EcoFlow Smart Home Panel 220 ms auto-switchover, 12 customizable circuits with single-circuit control by using the EcoFlow Smart Home Panel 2.GeneratorsCompatible with EcoFlow or third-party generators to get up to 12kW output for your entire house.
- EcoFlow AppIntelligent settings, remote control, and monitor power usage data in the EcoFlow app.EcoFlow PowerPulse EV Charger (9.6kW)9.6kW delivers 35 miles in an hour charge.³ With DELTA Pro Ultra and Smart Home Panel 2, turn solar into mileage.EcoFlow DELTA Pro Ultra7.2kW output per unit, scalable to 21.6kW, supporting heavy loads like 4-ton air conditioners.² Start with 6kWh capacity and expand to 90kWh, adapting to household size or energy demands.EcoFlow Smart Home Panel 220 ms auto-switchover, 12 customizable circuits with single-circuit control by using the EcoFlow Smart Home Panel 2.Solar PanelsCompatible with existing rooftop PV and flexible solar systems. The 5.6kW solar input provides you with up to a day of backup from only an hour of sun.
- Blackout Preparedness
- Daily Use
Uninterrupted, Unlimited, and Ultra-Smart Power
The EcoFlow DELTA Pro Ultra and Smart Home Panel 2 are an intelligent whole-house energy system for extended outages. Featuring a 20 ms automatic switchover, it ensures an uninterrupted power supply. With an expandable capacity of up to 90kWh, an output of up to 21.6kW, and five different ways to refuel, the system adapts to diverse power backup needs, ensuring you never sacrifice living convenience.

Modular Design – Power Every Home and Every Need
From small homes to large households, DELTA Pro Ultra delivers 7.2kW–21.6kW output and 6–90kWh capacity to conquer any energy demand. Run a 4-ton AC, charge EVs, or power 240V heavy loads—effortlessly. Grow your power as your life grows.
One 7200W unit runs your 4-ton central a/c
* Some central AC units may need a soft starter, depending on the actual situation.
Up to 21.6kW can power your home without any interruptions.
7.2- 21.6kW, 120V & 240V Output
Stackable Design to Power Every Home
With a 7.2kW output, EcoFlow DELTA Pro Ultra effortlessly runs even energy-hungry household items, like a 4-ton central air conditioner.² For a larger home, pair 3 inverters with the EcoFlow Smart Home Panel 2 to unlock a massive 21.6kW AC output.
One 6kWh battery
Expands all the way up to 90kWh in 15 stackable units.
6-90kWh Capacity
Stackable Design to Power Every Home
Starting with 6kWh, the system takes home power dependability to another level with up to 90kWh battery capacity, adapting to any household size or energy demands.
Grow Your Power, Plug-and-Play

Ultra-powerful for whole-home backup
EcoFlow DELTA Pro Ultra automates disaster prep and outage survival—charging ahead of storms, seamless switching power in 20ms, and deploying auto backup priority, solar, generators and more to extend runtime on your terms. When the grid fails, nothing changes.
Pre-Outage
24/7 Storm Prep
Outage Strikes
20 ms Seamless Transition
During Outages
5 Power Backup Extension Methods

Smart Energy, Smart Savings: Save Up to $3,600/Year¹
The DELTA Pro Ultra system turns sunlight and off-peak electricity into year-round savings. Harness smart modes and sync seamlessly with the EcoFlow PowerPulse EV Charger to slash energy bills by up to $3,600/year—earning as you use.
5.6kW-16.8kW solar input
Free energy from various solar sources
A single DELTA Pro Ultra inverter has two PV input ports for a maximum 5.6kW solar input. Connect DELTA Pro Ultra with the Smart Home Panel 2 system for compatibility with existing rooftop PV systems. Connect three inverters for a monumental 16.8kW input, achieving a full day's home energy in as little as 60 minutes.
Add Storage to Rooftop Solar and Start Saving
Looking to add batteries to your solar roof? Connect your Smart Home Panel 2 with the main panel, and the system automatically charges the DELTA Pro Ultra Battery using solar energy. Utilize free energy to support your home's energy needs and maximize the power of your rooftop panels. What's more, with the DELTA Pro Ultra system, there's no wasted energy while staying in the NEM 1.0/2.0 plan.
Buy Your Own Solar Panels
With its flexible plug-and-play design and unrivaled solar input, EcoFlow DELTA Pro Ultra allows you to tailor your solution to fit your energy needs. A single inverter has two PV input ports for a maximum solar input of 5.6kW. Connect three inverters for a monumental 16.8kW. Enjoy $0 electricity bills* on sunny days—let your solar panels do all the work!*
Wondering which solar panels are the best fit for you?
Check out our tutorial video >
- For Roof Solar
- For DIY Solar
3 Ways to Boost Money Saving
By charging during low-cost periods, topping up with solar energy, and automating tasks, reduce your reliance on expensive grid power.
- Self-Powered
- Scheduled Tasks
- TOU Mode
Reduce grid dependency and lower electricity costs. Self-Powered mode allows you to store solar energy and power your home once battery capacity exceeds the pre-set reserve. Rely on solar to power the entire home, reducing the need for grid electricity. Ideal for managing fluctuating energy prices, this decreases grid dependency, enhancing your energy freedom.
Save More on Energy-Hungry Appliances
Timed Circuits
EV Charging Made Smart

Automatically coordinates EV charging with your home's energy flow—utilises surplus solar power and battery during the day, switches to off-peak grid energy at night, and always maintains sufficient backup power reserves for emergencies while keeping daily appliances running.

Excess solar energy is exclusively used to charge your car. * For vehicle owners with solar systems.
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Your car begins charging immediately upon plugging into the charger.
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Saving Made Fun
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2.5-Year Payback Period with Easy Installation
Compared with traditional residential energy storage systems, our solution offers 75% reduction in upfront costs. And it enables you to achieve a payback period that is more than 3 times faster.
Low Upfront Cost, High Return on Investment
DELTA Pro Ultra Home Battery Solution
Payback Period
2.5 Years¹
Solar Panel Cost
$3,999 14*400W Rigid Solar Panel; DIYable, no installation fee needed
Installation Cost
Around $2,000 for Smart Home Panel 2 Installation
Total Upfront Cost
$8,999(DELTA Pro Ultra+Solar Panel Cost) $12,499(DELTA Pro Ultra+Smart Home Panel 2+Installation+Solar Panel Cost)
End to end lead time
Less than 2 weeks
Flexibility
modular and movable design, plug & play for inverter and batteries connection, scaling without installation
Traditional Residential Energy Storage System
Payback Period
Around 8 Years
Solar Panel Cost
$16,800 5.6kWp × $3, including installation; Roof Solar might cost more due to roof renovation
Installation Cost
Around $8,000
Total Upfront Cost
$35,800 (Including solar panel and installation)
End to end lead time
1-3 months
Flexibility
wall-mounted, battery scaling also requires installation
3 Home Connection Methods
Number of EcoFlow DELTA Pro Ultra units that can work with this system:
1-3
Capacity:
6-90kWh
Voltage/Amps:
7200W/30A 14400W/60A 21600W/90A
Solar Input:
5.6-16.8kW
Number of EcoFlow DELTA Pro Ultra units that can work with this system:
1-2
Capacity:
6-60kWh
Voltage/Amps:
7200W/30A 12000W/50A
Solar Input:
5.6-11.2kW
Number of EcoFlow DELTA Pro Ultra units that can work with this system:
1-2
Capacity:
6-60kWh
Voltage/Amps:
7200W/30A 12000W/50A
Solar Input:
5.6-11.2kW
- EcoFlow Smart Home Panel 2
- Manual Transfer Switch
- Inlet Box
$99 FREE NOW!
Installation Consulting Service For EcoFlow Smart Home Panel 2
With our service, you'll experience a seamless EcoFlow Smart Home Panel 2 installation. We connect you with a fully-trained local electrician and provide tracking from order to fitting. Our team is on hand to answer any technical queries, ensuring a smooth, hassle-free setup that prioritizes your convenience and satisfaction.
Step 1: Order Placement
Place an order that includes EcoFlow Smart Home Panel 2 and choose our service on the order confirmation / installation service page.
Step 2: Schedule Installation
Provide us with your general information and preferred installation time.
Step 3: Finalize Appointment
Customer service team provides the electrician's details and service appointment time.
Step 4: Share Your Feedback
Complete a short online survey once installation is complete.
Step 5: Reimburse Your Installation Fee
Contact the customer service team to reimburse the exclusive $500 installation fee after installation is completed.


Safety & Reliability
Engineered for peace of mind, DELTA Pro Ultra’s cutting-edge LFP battery withstands extremes—from freezing winters to relentless loads—with self-heating, advanced cooling, and SOC balancing tech. Backed by a 5-year shield, it safeguards your home silently, powerfully, always.
SOC Balancing Technology
Peace of mind with an advanced design.
EcoFlow X-Cooling
Our proprietary X-Cooling heat dissipation system enhances efficiency even when powering heavy loads around the clock. X-Cooling works to extend EcoFlow DELTA Pro Ultra's lifespan, backed by a 5-year warranty.
11 premium sintered heat pipes
6 dedicated fans
Customized aluminum board
Vertical cooling fins
Boost Performance with BMS
Our state-of-the-art LFP tech and advanced battery management system (BMS) regulates vital data, ensuring the safety, longevity, and high performance of EcoFlow DELTA Pro Ultra.
- Inverter
- Battery
Powers through the most challenging situations.
EcoFlow DELTA Pro Ultra tackles even the most grueling conditions. The battery automatically starts self-heating if the temperature is lower than 32℉, allowing the battery to run as normal. Whether it's extreme weather or freezing winters, this giant safeguards your power security, just like usual.
Operating temperatures: -4°F to 113°F
290V high voltage tolerance
IP54 dustproof and splashproof
What's in the box?
Inverter box
EcoFlow DELTA Pro Ultra Inverter

EcoFlow Portable Stand

EcoFlow Disassembly and Assembly Tool

EcoFlow Solar to Low-PV Port Charging Cable

EcoFlow AC Charging Cable-C20

Warranty Card

Quick Start Guide

Battery box
EcoFlow DELTA Pro Ultra Battery

EcoFlow Battery Connection Cable (DELTA Pro Ultra) - 0.66 ft (0.2 m)

Safety Guide

Accessories
1. Payback Calculation Logic (California Example): Daily solar generation: 5.6kWp system × 6 sun hours/day) × 0.8 = 26.88kWh/day. Electricity rates: Average rate: $0.30/kWh. TOU peak/off-peak price differential: $0.30/kWh. Daily savings: Solar savings: 26.88kWh × 0.30 = $8.064 Battery TOU savings: 6kWh × 0.30 = $1.8 Total daily savings: $8+$1.8 = $9.864 Monthly savings: $9.863/day × 30 days = $295.92/month Annual savings: $9.8/day × 365 days = $3600.36 2. A soft-starter may be needed if the air conditioner's LRA rating is not within 120A 3. Vehicle model and usage dependent 4. The EcoFlow AC Generator Charging Adapter is required to charge DELTA Pro Ultra using a generator 5. We support a comprehensive list of platforms for you to upload utility plans automatically after your consent (released in June)