Battery backup for an induction or electric stove: the 240V problem

An electric range is the largest single appliance in many kitchens, and whether a battery can run it is printed on the range's own spec sheet, in two numbers: a kilowatt rating at 240V and an amp or breaker figure. Set those against the continuous output a home battery or a power station publishes. One Tesla Powerwall 3 at 11.5 kW covers the rating of some ranges and cooktops in the table below and not others. None of the plug-in power stations we track covers a full range, while a single induction element or a 120V plug-in burner fits under all of them.

Every number below comes from a manufacturer, federal or utility publication read on October 19, 2026. We have not tested any range, cooktop or battery.

What range and cooktop makers publish

GE lists a "KW Rating at 240V" on each spec table without defining it, so this guide calls it the maker's kW rating, not a typical draw. The amp column repeats each maker's own label, because the labels differ.

Sources: GE spec tables for the GRF400SVSS, GRF600AVSS, PHS700AYFS and PHP9036DTBB; GE's PHS700AYFS spec sheet for the breaker size; and, for the two Samsung cooktops, Samsung's 2024 builder catalog. All read October 19, 2026.

Two of those rows need a caveat. GE's GRF400SVSS page lists "Amps: 40" without saying whether that is the circuit, and the same table carries a second row, "Electrical Requirements: 240V,5600W,24A,60Hz or 208V,4400W,22A,60Hz," that GE does not reconcile with the 11.0 kW rating. And GE's 36 inch PHP9036DTBB lists a "KW Rating at 240V" of 9.6 and, on the same page, a "Max. Connected Load (kW) at 240V" of 11.6 and a "Max. Current Draw (Amps) at 240V" of 48.3, again without explaining the gap. For sizing a backup system, the larger figure on each page is the safer one to plan against.

Induction does not mean a smaller rating: the induction PHS700AYFS sits between GE's two radiant ranges. Single elements are large loads too. The PHS700AYFS and PHP9036DTBB each list an 11 inch element at 3700 W, and the GRF400SVSS a 3100 W "Power Boil" element.

Why a 12.3 kW range sits on a 40 A breaker

At 240V, a 40 A circuit works out to 9.6 kVA and a 50 A circuit to 12 kVA. Each of the three GE 30 inch ranges in the table is rated above 9.6 kW and lists a 40 A figure.

GE prints both numbers on one page. Its PHS700AYFS spec sheet lists "KW RATING 240V 12.3" and "BREAKER SIZE 240V 40 Amps," with the footnote "NOTE: Check local codes for required breaker size." GE's electric range installation instructions linked from the same product page (31-2001194, Rev. 1, 09-23) state that if there are no local codes, "your oven must be wired and fused to meet the National Electrical Code," and that the appliance must be "connected to an individual, properly grounded, 40 amp (minimum) branch circuit protected by a circuit breaker or time-delay fuse." Both read October 19, 2026.

Neither GE document explains why a 12.3 kW appliance gets a 40 A minimum circuit, so this guide does not either. For battery sizing, plan against the maker's kW rating, or its maximum connected load where GE lists one, and treat the breaker as what your electrician sizes to the code. A battery's continuous rating caps everything running in the house at once, not just the stove.

Set against installed home batteries

Single-unit continuous outputs from our battery data, each re-read on the maker's datasheet on October 19, 2026:

• Tesla Powerwall 3: 11.5 kW. Tesla's datasheet lists four nominal output ratings, 5.8, 7.6, 10 and 11.5 kW, with a maximum continuous current of 48 A at 11.5 kW. It also lists "Configurable Maximum Continuous Discharge Power Off-Grid (PV Only, -20°C to 25°C)" at 15.4 kW, footnoted "only available if on-grid rating is 11.5 kW," and states that if enabled the unit "must be installed with an 80 A breaker and appropriately sized conductors." Because that figure is off-grid, PV only, temperature-bounded and conditional on an install choice, this guide compares against 11.5 kW.
• FranklinWH aPower 2: 10 kW. The aPower 2 datasheet prints "10 kW / 11.5 kVA continuous," with footnote 5 reading "This value applies to a rated 11.5 kVA." The same datasheet lists four nominal output ratings, 5, 7.6, 9.6 and 10 kW, with a maximum continuous output current of 48 A at the 10 kW, 11.5 kVA rating.
• Enphase IQ Battery 5P: 3.84 kVA. The IQ Battery 5P data sheet lists 3.84 kVA continuous at 240VAC and a rated output current of 16 A.

Put those next to the range table. One Powerwall 3 at its 11.5 kW rating is above the 11.0 kW GRF400SVSS, the 9.6 kW rating of the PHP9036DTBB cooktop, and both Samsung cooktops at 7.1 and 10.8 kW. It is below the 12.3 kW PHS700AYFS and the 13.2 kW GRF600AVSS, and below the PHP9036DTBB's separate 11.6 kW maximum connected load. Its 48 A is above the 40 A figure each GE 30 inch range in the table lists. One aPower 2 at its 10 kW rating is above the PHP9036DTBB's 9.6 kW rating and the 7.1 kW Samsung cooktop, and below the 11.0 kW GRF400SVSS, the 10.8 kW Samsung cooktop and every other range in the table. One IQ Battery 5P, at 16 A of rated output current, is well under any range circuit in the table, and a single 3,700 W induction element would take most of its 3.84 kVA.

Those comparisons use each battery's top rating. Tesla and FranklinWH each publish four nominal output ratings, so ask the installer which one your system is set to.

Heating elements and induction coils are not motors, so the motor-start question in our continuous vs peak power guide matters less here. Read the continuous column.

Set against plug-in power stations

A range is a 240V appliance, and only some power stations publish a 240V output; our 120V vs 240V guide covers which. Here is what each 240V-capable unit we track publishes, read on its maker's page on October 19, 2026.

• Jackery Explorer 5000 Plus: its single shared NEMA L14-30R/14-50 output is listed at "120V/240V~60Hz, 30A, 7200W Max," with an AC total of "7200W Max, 14400W Surge." Source: Jackery product page.
• EcoFlow DELTA Pro Ultra: "7,200W total, 120V/240V," with one 120V/240V socket at "30A Max" and a peak of 10.8 kW for 10 seconds. Source: EcoFlow product page.
• Anker SOLIX F3800 Plus: its NEMA L14-30R is rated "120V/240V~ 25A Max, 60Hz, 6000W Max." Source: Anker product page.
• EcoFlow DELTA Pro 3: "120/240V~16.7A 60Hz, 4000W total," and EcoFlow's FAQ states that in 240V mode "the 120V outlet will be turned off." Source: EcoFlow product page.
• BLUETTI Apex 300: one NEMA 14-50R listed as "120/240V, 50A," inside a unit total of "3,840W Max." Source: BLUETTI product page.

The largest of those, 7,200 W, is about half to two thirds of the 11.0 to 13.2 kW ratings of the GE 30 inch ranges, and below the 9.6 kVA of the 40 A circuit those ranges list. The one appliance in the table that falls under it is a cooktop, not a range: Samsung's NZ30A3060U at 7.1 kW is just below the 7,200 W of the two largest units, with no margin for anything else on the same output.

The 14-50 sockets deserve a specific warning. A 14-50 receptacle on a power station does not mean 50 A is available behind it. Jackery rates its 14-50 output at 30 A and 7,200 W, shared with its L14-30R. BLUETTI labels its 14-50R at 50 A, but the whole Apex 300 tops out at 3,840 W, which is 16 A at 240V. Do not plug a range cord into a station's 14-50 outlet on the assumption that it supplies what the range's own circuit does.

A 240V port on a power station reaches a hardwired range only through an electrician-installed transfer switch or interlock, which our transfer switch guide covers. We publish no method for connecting one, because the method is a licensed electrician working to your local code.

Why the range usually stays off a critical loads panel

A critical loads panel holds the circuits a battery keeps alive in an outage, and it is sized against the battery's continuous kW first. A range is a hard load to fit on one. It is a large resistive or induction load with no motor duty cycle to average it down, it sits on a 40 or 50 A double breaker, and on several models in the table its kW rating alone exceeds a single battery's continuous rating.

Putting it on the same panel as the refrigerator and the sump pump means a battery large enough to carry all of them at once, or accepting that cooking can overload the system the freezer depends on. Our critical loads guide lists the electric range with the loads that usually stay off, and covers the smart circuits that let a controller shed it instead.

Sizing a whole-home system that includes the range

If cooking on the full range in an outage is a requirement, size the system's continuous output for it, not its kWh.

Tesla's datasheet lists "Up to 4 Powerwall 3 units supported" for power scalability and "up to 11.5 kW AC of continuous power per unit." At 11.5 kW per unit, two units add to 23 kW on paper, which is above every kW rating in the table with room for the rest of the house. The datasheet pairs each of its four nominal output ratings with an overcurrent protection device of 30, 40, 60 and 60 A respectively, so confirm which rating the quoted system uses.

FranklinWH lists up to 15 aPower units per aGate. Whether multiple units add their power, and by how much, is a question to put to the installer in writing.

The practical sizing rule is to write down what has to run at the same time as the range, add the range's realistic draw to it, and compare the total against the configured continuous kW. Our whole-home backup guide ranks the installed systems we track by that continuous figure.

How much stored energy cooking uses

Power decides whether the range runs. Energy decides for how long, and the published data on it is thin.

The closest primary source we found is the appliance energy use chart from Silicon Valley Power, the City of Santa Clara's municipal electric utility. Linked to the Wayback Machine copy of October 9, 2026. Under "Range, electric" it estimates 2.3 kWh per hour for "Oven" and 1 to 1.5 kWh per hour for a row labelled "Oven: surface," noting that "Estimated energy use is based on average operation conditions. Individual use may vary."

Against a Powerwall 3's 13.5 kWh, one hour of oven at that estimate is about 17 percent of the battery. Against an EcoFlow DELTA Pro 3's 4,096 Wh, it would be about 56 percent, if the unit could feed the oven at all. Our runtime guide shows how a few large loads like this shrink a battery's hours.

The federal figures that do exist are test-procedure units. ENERGY STAR's criteria for residential electric cooking products, which cover standalone cooktops and the cooktop component of ranges, set an "Integrated Annual Energy Consumption, IAEC, of less than or equal to 195 kWh/yr." DOE's test procedure for conventional cooking products (10 CFR 430, Subpart B, Appendix I1, section 4.1.2.1) builds the annual figure from "418 cooking cycles per year, the average number of cooking cycles per year normalized for duration of a cooking event," and IAEC adds the cooktop's annual low-power mode energy to that active figure. Both read October 19, 2026. Dividing 195 kWh/yr by 418 gives about 0.47 kWh per normalized test cycle, slightly high because it includes the low-power share. That is a cooktop certification unit, not a measured meal, and it covers no oven use.

A 120V induction burner as the low-load option

The workaround that fits every battery and power station named on this page is a single plug-in induction burner. Nuwave lists its PIC Pro Chef at "120 V," "1800 W" and "15 A," with "3 wattage settings of 900, 1500, and 1800 watts." Linked to the Wayback Machine copy of June 23, 2026. At 1800 W it is less than half the 3,700 W of the largest element on GE's induction range.

It changes the problem in three ways:

• Voltage. It runs on 120V, so it works from the 120V outlets on every power station named above. The F3800 Plus rates its 120V output at 20 A and 2,400 W; the Jackery lists four 120V 20 A outlets at 3,600 W combined. On the DELTA Pro 3, the 120V outlets are off in 240V mode.
• Connection. It plugs in. With an installed battery, a single countertop circuit on the critical loads panel can serve it while the range stays off the panel entirely.
• Energy. At its 1800 W maximum, an hour of use is 1.8 kWh: about 13 percent of a Powerwall 3's 13.5 kWh, or about 44 percent of a DELTA Pro 3's 4,096 Wh, before conversion losses. At the 900 W setting it is half that.

It needs induction-compatible cookware.

A gas range is outside the scope of this guide; its electric igniter and controls are a small 120V load and a different question from the one above.

What to check before you plan around the range

Read three things: the kW rating and amp or breaker figure on your range's spec sheet or rating plate; the configured continuous kW of the exact battery system you are quoted; and what else has to run at the same time as dinner.

If the full range does not fit, a plug-in burner on a backed-up 120V circuit covers cooking until the grid returns. An electrician answers what your own panel and jurisdiction allow.