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The EcoFlow Delta Pro Ultra is a home battery that can harvest power from 42 solar panels

Announced at CES 2024, the Delta Pro Ultra is a whole house battery backup that can scale to 90kWh.


EcoFlow has arrived at CES 2024 in Las Vegas to show off its largest and most useful home battery backup solution, the Delta Pro Ultra. It’s calling the hardware a “smart hybrid whole house battery generator and backup” that will draw power from a wide variety of sources. You’ll be able to charge it from either high or low-output solar panels, from the grid, or even juice it up from a gas powered generator. (But also, don't do that unless lives are on the line, please, the planet can't handle it.) The Delta Pro Ultra also vastly increases how much power you can keep on hand at any one time. The existing Delta Pro can scale — with additional batteries — up to 25kWh but, if your wallet is thick enough, you can equip the Ultra with 90kWh of batteries, which the company says should be enough to keep your home’s essentials running for up to a month.

In fact, the theme of this hardware is supersized capaciousness since every element of it has been built to service the most extravagant McMansions. For instance, the solar input can take up to 16.8kW of power at a time, letting you wire up to 42 400W panels at a time. Combined with the ability to draw extra power from the grid when energy costs are low and you should see the initial outlay paid back fairly quickly. And the company says output runs from 7.2kW — enough to run a Central Air unit — all the way through to 21.6kW with enough additional gear, which should be enough to power most key appliances in your home.

On its own, the Ultra is plug-and-play, although if you want to take advantage of its higher outputs and deeper integration with the home, you’ll have to buy its Smart Home Panel 2. That will of course require the services of a qualified contractor but, even so, the company says that installation is pretty clean and tidy. Not to mention that it’s nice and quiet when outputting less than 2,000W to help avoid complaints from the neighbours.

If you’re looking to splash out on a new whole house battery backup system, the Delta Pro Ultra is available to order starting today. For the first month, the inverter and battery will set you back $4,999, while the Smart Home Panel 2 costs an extra $1,599 when bought separately. Not to mention you can snag both in a bundle for $6,399 until February 9, when prices for all three will leap up to their RRP of $5,799 (Ultra), $1,899 (Panel 2) and $7,499 (bundle).

We're reporting live from CES 2024 in Las Vegas from January 6-12. Keep up with all the latest news from the show here.