Two EVs in One Household (2026): What Charging Both Adds to Your Bill - and Whether You Need a Panel Upgrade

Two electric cars in the driveway sounds like double the electricity and an electrician's invoice the size of the down payment. The data says otherwise - mostly.

By Dana Whitfield, Home Energy & EV Cost Analyst · Published 30 June 2026 · Data current to Q2 2026

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Going from one electric car to two changes the question every household asks. With one EV, the worry is "how much will my bill go up?" With two, it becomes two worries stacked: a bigger bill, and a bigger electrical load that might force a panel upgrade costing thousands before either car is plugged in. The instinct is to assume both double. Neither quite does.

Here is the punchline up front. Two efficient EVs driven the US-average distance add roughly $1,590 a year - about $132 a month - to a home's electricity bill at the national average residential rate of 17.65 cents per kilowatt-hour [1]. That is close to double the one-car figure, because the energy genuinely is additive. But the electrical-load question is different: two EVs combined need only about 22 kilowatt-hours a day, which a single Level 2 circuit delivers in a couple of hours, so most homes with 200-amp service do not need a panel upgrade to run two cars [5][9]. The upgrade is forced by a small set of conditions - 100-amp service, a full panel, or insisting both cars charge at full power simultaneously - and even then, hardware that lets two EVs share one circuit usually beats a rewire on cost.

This piece pulls those two questions apart with the primary data: EIA electricity prices, FHWA mileage, DOE and EPA efficiency figures, the 2023 National Electrical Code, and real 2026 quotes for panels, subpanels and load-sharing gear.

The short answer for two-EV families

Two electric cars add energy in proportion to how far you drive them, but rarely strain the wires. At the US average rate, the second EV adds roughly the same $60-$70 a month the first one did - call it $130 a month for the pair of efficient cars, less on an off-peak plan [1][12]. The wiring is the part people overestimate: because the average vehicle covers about 37 miles a day [3][4], two cars together draw down only around 22 kWh of charge overnight, and a single 9.6 kW Level 2 charger replaces that in well under three hours. You almost never need two chargers running flat out at the same time.

So the decision tree is short. If you have 200-amp service and you charge overnight, you are very likely fine with one circuit shared between the cars, or two modest circuits, and no service upgrade [9]. If you have 100-amp service, an older fully-populated panel, or genuinely need both cars at full speed at once, then you are in upgrade territory - and the rest of this article is about doing that for the least money.

How much energy two EVs actually use

A typical EV driven 13,500 miles a year uses about 4,050 kilowatt-hours of delivered energy, or roughly 4,500 kWh once you count charging losses. The mileage figure comes from the FHWA, whose per-driver average sits near 13,500-13,700 miles [3][4]; the consumption comes from the DOE and EPA, which put a mainstream EV around 30 kWh per 100 miles - the Alternative Fuels Data Center's own worked example uses 27 kWh per 100 miles, and EPA labels cluster between roughly 24 and 35 kWh per 100 miles for everything from a Tesla Model 3 to a mid-size SUV [5][6][7]. AC Level 2 charging is about 88-92% efficient, so I add 10% to get the figure that actually lands on the meter.

Two of those efficient cars therefore draw about 9,000 kWh a year at the meter. For context, the average US home uses around 10,500 kWh a year for everything else, so a two-EV household is, in energy terms, almost running a second house - except that second house is cheaper per mile than anything at the gas pump [5][24].

The mix matters, though. Few households run two identical efficient sedans. Surveys find that about 60% of EV-owning households pair their electric car with a larger non-electric vehicle - an SUV, truck or minivan - and as more of those big vehicles go electric, the second EV is often a thirstier one [31][36]. An electric SUV or truck at 40 kWh per 100 miles uses about 6,000 kWh a year at the meter. A realistic "sedan plus electric SUV" pair therefore draws closer to 10,500 kWh a year, not 9,000. That single assumption moves the annual bill by well over a hundred dollars, which is why this article keeps the two cases separate.

What two EVs add to your monthly bill

The pair costs between about $90 and $225 a month to charge, and the spread is set almost entirely by your electricity rate and the time you plug in. At the US average residential rate of 17.65 cents per kWh, 9,000 kWh works out to $1,588 a year, or $132 a month, for two efficient EVs [1]. That tracks the single-car numbers the industry quotes - EnergySage, Kelley Blue Book and various utilities land a single home-charged EV between $45 and $70 a month - doubled [12][13]. The second car does not get a discount; it adds essentially what the first one did.

Three things move that headline up or down. First, the vehicles: swap one efficient sedan for an electric SUV and the pair climbs to about $1,853 a year on the same rate. Second, the rate itself: residential prices have risen roughly 17% in four years and reached about 19.3 cents per kWh nationally in the April 2026 EIA update, with state averages running from under 12 cents in North Dakota to well over 30 cents in California and Hawaii [1][2]. In a 30-cent state, two efficient EVs on a flat rate cost about $2,700 a year - $225 a month. Third, and most powerful, the time of day.

The single biggest lever a two-EV household controls is the time-of-use plan. Utilities price overnight power far below daytime peaks precisely to soak up EV demand, and the savings compound across two cars. On PG&E's EV2-A plan the cheapest window runs from midnight to 3 p.m.; SCE's TOU-D-PRIME is reserved for households with EVs, solar or heat pumps [22][23]. A representative super-off-peak rate of around 12 cents per kWh turns the $1,588 flat-rate pair into about $1,080 a year - $90 a month [22]. Shifting both cars into that window is worth roughly $500 a year to a two-EV home, more than any efficiency tweak to the cars themselves.

Worked example - two efficient EVs. Each car: 13,500 mi x 0.30 kWh/mi = 4,050 kWh delivered, ~4,500 kWh metered. Pair = 9,000 kWh/year. At 17.65 c/kWh that is $1,588/year ($132/mo); at a 12 c off-peak rate, $1,080/year ($90/mo); in a 30 c state, $2,700/year ($225/mo). Our calculation; rates per [1][22], consumption per [5][6].

Why the daily charging need is smaller than it looks

Two EVs need only about 22 kilowatt-hours of charge on an average day, which is the fact that defuses most panel-upgrade panic. The arithmetic is simple: 37 miles per car per day, two cars, is 74 miles; at 30 kWh per 100 miles that is 22.2 kWh of delivered energy, around 24-25 kWh at the meter [3][5]. A single 9.6 kW Level 2 charger pushing 40 amps delivers that in roughly two and a half hours. Even a thirsty SUV-and-sedan pair, at perhaps 30 kWh a day combined, is done inside four hours on one circuit.

That is the whole reason a two-EV household and a one-EV household put almost the same peak demand on the wiring. The cars are parked, plugged in, and asleep for eight to twelve hours overnight, but they only need power for two to four of them. Stagger them - or let a controller stagger them for you - and one Level 2 circuit comfortably tops up both cars before morning. The EPA makes the same point from the demand side: most multi-car households drive fewer total daily miles across all their cars than a single modern EV's range, so the energy is well within what overnight home charging can supply [32].

The trap is only sprung if you insist on charging both cars at full power at the same moment. Two 40-amp chargers running together draw 80 amps continuously - 19.2 kW - and each still needs its own 50-amp breaker under the code's 80% continuous-load rule [10]. That is a real load, and it is the scenario that fills panels and trips upgrades. But it is also a scenario almost no household actually needs, because the cars have all night and only a few hours of demand.

Do two EVs require an electrical panel upgrade?

Two Level 2 chargers draw up to 80 amps if run together, so on paper they look like they need most of a 200-amp panel - but in practice most 200-amp homes can run two EVs without an upgrade. The reason is the gap between nameplate and behaviour: the code sizes wires for the worst case, but a load-management setup or simple staggering keeps the real simultaneous draw far lower. EnergySage's guidance is blunt - homes with 200-amp service are "likely prepared" for EV charging as long as the panel has space for the circuits, and the binding question is the whole-house load calculation, not the headline amperage [9].

The honest answer therefore depends on three things, in order. First, your service size. A 100-amp panel - common in homes built before the 1990s - is the classic upgrade trigger, because a single continuous 40-50 amp charger already eats a large slice of 100 amps, and two of them is a non-starter [37]. A 200-amp panel, by contrast, has roughly 48 kW of headroom to share between the house and the cars. Second, physical space: even with capacity, you need open breaker slots for the new circuits, and a full panel may need a subpanel rather than a service upgrade [9]. Third, your charging pattern: if you accept overnight, managed or staggered charging, the load calculation usually passes; if you demand two simultaneous full-power chargers, it often does not.

One widely-cited installer estimate claims about 62% of 2026 Level 2 installations end up needing a panel upgrade [37]. Treat that number with caution - it comes from a company that sells the upgrades, and it lumps in homes adding their first charger to old 100-amp service. For a household that already has 200-amp service and one working EV charger, adding a second car rarely repeats that cost. The single most valuable thing you can buy here is a load calculation from a licensed electrician, typically $150-$300, which tells you definitively whether your specific panel has room before anyone sells you a $3,000 rewire [37].

How the code counts two chargers (NEC 220.57 and 625.42)

The 2023 National Electrical Code counts each EV charger as at least 7,200 volt-amperes - or its nameplate rating, whichever is larger - in your home's service-load calculation. Section 220.57 was new in the 2023 code and closed a long-running ambiguity: previously, electricians argued over how to size EV load; now the floor is explicit at 7,200 VA, the figure for a 30-amp, 240-volt circuit, and EV chargers are excluded from the appliance demand factors in 220.53 so they cannot be discounted [16][17]. A 9.6 kW (40-amp) charger counts at its 9,600 VA nameplate; two of them add 19,200 VA to the calculation regardless of how often you actually use them both [16].

That sounds punishing, and on a strict reading it can push a marginal panel over the line. But the same code edition gives you the escape hatch. Article 625.42 permits an Energy Management System (EMS) - or a charger with adjustable load settings - to cap or share current so that the controlled load, not the nameplate, is what the calculation uses [18][20]. In plain terms: if a controller guarantees that your two chargers will never collectively pull more than, say, 40 amps, the electrician can size and calculate around 40 amps instead of 80. This is the code's formal blessing for load-sharing hardware, and it is what makes running two EVs on existing service legal rather than a workaround. The practical load calculation usually runs under NEC 220.83, the method for adding loads to an existing dwelling, and for two large chargers electricians are advised to size conservatively rather than to the bare minimum [15][18].

The takeaway for a homeowner: you do not have to win the argument that "we'll never charge both at once" on trust. A UL-listed energy-management device makes that promise enforceable, and the code lets you bank the savings.

Charging two EVs without an upgrade: splitters and load sharing

A smart splitter costs about $500-$800 and lets two EVs share a single 240-volt circuit - the cheapest way to add a second car. The NeoCharge Smart Splitter, the best-known example, is a UL-listed device that plugs into one existing 240V outlet (NEMA 14-50 and similar) and either alternates full power between two cars or splits the circuit between them, automatically keeping draw under 80% of the breaker's rating per NEC [19]. For a household whose two cars only need a few hours of charge each overnight, alternating is invisible: the second car simply starts when the first finishes, and both are full by morning [21].

The slightly more capable option is a pair of load-sharing chargers. Brands such as Emporia let two or more wall units sit on one circuit and divide the available amps dynamically - both cars charge at once at half speed, and when one unplugs the other ramps back up to full [20]. This needs a single dedicated circuit rather than two, so it sidesteps the panel-space problem and, crucially, the 625.42 load-management allowance lets the electrician calculate the shared circuit at its capped value [18][20]. Compared with a $1,300-$3,000 panel upgrade, a load-sharing setup or a splitter is a few hundred to about $1,200 all-in, and it is reversible if you move.

These devices reframe the whole question. The expensive interpretation of "two EVs" is "two full-power chargers on two new circuits, possibly needing a bigger panel." The cheap interpretation - and the one that fits how families actually drive - is "two cars sharing one circuit overnight." The hardware to do the second now exists, is UL-listed and code-sanctioned, and is where a two-EV household should look before quoting a service upgrade.

What an upgrade costs when you do need one

A 200-amp panel upgrade typically runs $1,300-$3,000 in 2026, and that is the number to anchor on when sharing hardware genuinely won't do. The 2026 cost guides converge here: HomeGuide, Homewyse and Angi all put a straightforward 100-to-200-amp upgrade in the $1,300-$3,000 band, with most homeowners around $2,000-$2,500 [28][29][30]. The figure climbs when the job involves more than the panel itself - a new meter base, a service mast, utility coordination or code-mandated grounding can push a full service upgrade to $4,000-$5,000 and, in difficult urban or underground-service cases, far higher [28][37].

The cheaper middle path, when your panel has capacity but not slots, is a subpanel: typically $500-$1,800 to add a second breaker box fed from the main, giving you room for EV circuits without replacing the service [37]. The decision between subpanel and full upgrade is exactly what the load calculation answers - capacity but no space points to a subpanel; not enough capacity, or 100-amp service, points to the full 200-amp upgrade [9][37].

Option	Typical 2026 cost	When it fits
Load calculation (diagnostic)	$150-$300	Always - do this first [37]
Smart splitter, one shared circuit	$500-$800	Two cars, occasional overlap, existing outlet [19]
Subpanel add	$500-$1,800	Panel has capacity but no free slots [37]
Load-sharing dual chargers	~$800-$1,200	Two cars, want simultaneous managed charging [20]
200A panel upgrade	$1,300-$3,000	100A service, or panel maxed on capacity [28][30]
Full service + meter upgrade	$4,000-$5,000+	Old service entrance, utility work required [28][37]

Costs are 2026 US midpoints from the cited guides; local quotes vary widely. Our compilation.

The order of operations matters financially. Spend $200 on the load calculation before $3,000 on a rewire, because for a 200-amp home the calculation frequently comes back saying a $650 splitter is all you need [9][37].

Two EVs vs two gas cars: the running-cost gap

Two home-charged EVs cost about $1,080-$1,590 a year in electricity against roughly $3,500 for two gas cars - a saving near $1,900 to $2,400 a year. The gas figure assumes two 27-mpg cars driven 13,500 miles each at $3.50 a gallon: 500 gallons per car, $1,750 each, $3,500 for the pair [25][26]. Against the flat-rate EV pair at $1,588, that is a $1,912 annual saving; against the off-peak pair at $1,080, it is $2,420 [25][27].

Per mile, the gap is the same one the DOE built the "eGallon" around: a home-charged EV at 30 kWh/100 mi and the average rate fuels for roughly 5-6 cents a mile, against 12-14 cents for a 27-mpg car at $3.50 gas [24][26][35]. Coltura's 2026 calculator puts the average US driver's EV fuel advantage near 6 cents a mile, and the NRDC and Recharged analyses land in the same $800-$1,500-per-car-per-year range on fuel alone [25][26][27]. Double the cars, double the saving - and that is before maintenance, where EVs typically run $300-$500 a year against $900-$1,500 for a gas car [27].

The two-EV case is, if anything, where the economics look best, because the household has already absorbed the fixed costs - the home charger, the possible electrical work - and the second car rides on top of them at the marginal electricity cost. The first EV pays back the install; the second one is close to pure fuel savings from day one.

Rebates and rate plans that cut the cost

SCE's Charge Ready Home pays up to $4,200 toward an electrical panel upgrade and Level 2 charger, and it is the template for what to look for everywhere. In Southern California, income-qualified households can have 100% of a panel upgrade covered up to $4,200, and residents of qualifying communities get 50% up to $2,100, on the condition that the upgrade reaches at least 200 amps with a dedicated 240V circuit and a charger installed within 180 days [33]. That single program can turn a $3,000 upgrade into a few hundred dollars - decisive for a household weighing two EVs.

Most two-EV households will not be in SCE territory, but the pattern repeats: many utilities and states offer charger rebates, panel-upgrade incentives, or both, and nearly all offer the time-of-use or dedicated-EV rate that does the heavy lifting on the bill [22][23]. Two levers are worth chasing before installation. First, the rate plan: enrolling both cars' charging in an off-peak or EV-specific window is the recurring saving, worth around $500 a year for the pair as shown above [22]. Second, any panel or charger rebate in your service area, which is a one-time saving that can fully fund the load-sharing hardware. Stack the two and a second EV can be close to cost-neutral to set up and cheaper than the first to run.

How to plan a two-EV home, step by step

The cheapest path from one EV to two runs in five steps, in this order:

1. Get a load calculation ($150-$300) on your existing panel before buying anything. It tells you whether you have capacity, space, both or neither [37].
2. Default to sharing one circuit. A smart splitter or load-sharing chargers ($500-$1,200) handles two cars overnight on existing service for most 200-amp homes - and is sanctioned by NEC 625.42 [18][19][20].
3. Upgrade only when the calculation says so - 100-amp service or a maxed panel. Prefer a subpanel ($500-$1,800) if you have capacity but no slots, a 200-amp upgrade ($1,300-$3,000) if you don't [9][28].
4. Enroll both cars in a time-of-use or EV rate and schedule charging into the off-peak window. This is the $500-a-year recurring saving and it costs nothing [22][23].
5. Claim every rebate - charger, panel and utility programs like SCE Charge Ready - before the work is done, since most require pre-approval [33].

Do those in order and the typical outcome is undramatic: a second EV that adds about $60-$90 a month to the bill, plugs into the same circuit as the first, and never triggers the four-figure electrical project everyone fears. The expensive version of two EVs is real, but it is a minority case - usually old 100-amp service - not the default.

The deeper point is that a two-EV household is the configuration where home charging pays off hardest. The fixed costs are already sunk after the first car; the second rides on cheap overnight electricity and shares the same wires. The bill roughly doubles because the driving does. The wiring usually doesn't, because two cars asleep in a driveway take turns.

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Common questions

Does a second EV double my electric bill? It roughly doubles the EV portion, not the whole bill. Two efficient EVs add about $1,590 a year - close to $132 a month - at the US average rate, versus about $66 a month for one [1][12]. On an off-peak EV plan the pair drops nearer $90 a month [22].

Do I need to upgrade my electrical panel for two EVs? Usually no, if you have 200-amp service and charge overnight. Two EVs only need about 22 kWh a day combined, which one Level 2 circuit delivers in a few hours [5][9]. An upgrade is mainly forced by 100-amp service or running two full-power chargers at the same time [37].

Can two EVs share one charger or one circuit? Yes. A smart splitter ($500-$800) lets two cars share a single 240V circuit, alternating or splitting the power, and load-sharing dual chargers do the same automatically - both far cheaper than a panel upgrade [19][20].

How many amps do two EV chargers need? Two 40-amp chargers draw up to 80 amps continuous (19.2 kW) if run together, each on its own 50-amp breaker [10]. The NEC counts each charger as at least 7,200 VA in the service-load calculation regardless of how often you use it [16][17].

Is it cheaper to charge two EVs at home than to run two gas cars? Far cheaper. Two home-charged EVs cost about $1,080-$1,590 a year in electricity against roughly $3,500 for two 27-mpg gas cars - a saving near $1,900 to $2,400 a year before maintenance [25][26].

Should I get a 200-amp panel upgrade or a smart splitter? Start with a $150-$300 load calculation. If your panel has capacity but not slots, a subpanel or smart splitter is cheaper; if it is 100-amp or already maxed out, a 200-amp upgrade ($1,300-$3,000) is the real fix [9][28][37].

How much does charging two EVs cost per month on a time-of-use plan? About $90 a month for two efficient EVs at a 12-cent off-peak rate, versus $132 at the flat US average [1][22]. Shifting both cars to the overnight window is the single biggest lever on the bill.

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Sources

1. EIA - Electric Power Monthly, Table 5.6.A (average retail price, residential). https://www.eia.gov/electricity/monthly/epm_table_grapher.php?t=epmt_5_6_a
2. EIA - Electricity Monthly Update (end-use prices). https://www.eia.gov/electricity/monthly/update/end-use.php
3. FHWA - Highway Statistics, Table VM-1 (vehicle miles travelled). https://www.fhwa.dot.gov/policyinformation/statistics/2023/vm1.cfm
4. Kelley Blue Book - Average Miles Driven Per Year. https://www.kbb.com/car-advice/average-miles-driven-per-year/
5. DOE Alternative Fuels Data Center - Charging Electric Vehicles at Home. https://afdc.energy.gov/fuels/electricity-charging-home
6. fueleconomy.gov - Compare All-Electric Cars, Trucks and SUVs (EPA/DOE). https://www.fueleconomy.gov/feg/evsbs.shtml
7. DOE - Fact of the Week #1373: Efficiency of MY2024 EVs, 53-140 MPGe. https://www.energy.gov/cmei/vehicles/articles/fotw-1373-december-16-2024-efficiency-evs-model-year-2024-ranges-53-140-mpge
8. Recurrent - Most Efficient EVs of 2026 (tested kWh/100 mi). https://www.recurrentauto.com/research/most-efficient-ev
9. EnergySage - Do You Need an Electrical Panel Upgrade for Your EV? https://www.energysage.com/ev-charging/do-you-need-an-electrical-panel-upgrade-for-your-ev-/
10. EnergySage - Level 2 EV Charger Amps: How to Choose the Right Amperage. https://www.energysage.com/ev-charging/best-ev-charger-amperage/
11. Qmerit - Understanding Your EV Home Charging Station Installation Costs. https://qmerit.com/blog/understanding-your-ev-home-charging-station-costs-for-installation/
12. EnergySage - How Much Does It Cost to Charge an Electric Vehicle? https://www.energysage.com/ev-charging/electric-vehicle-charging-cost/
13. Kelley Blue Book - How Much Does It Cost to Charge an EV? https://www.kbb.com/car-advice/how-much-does-it-cost-to-charge-an-ev/
14. ChargeRight - NEC 220.82 Explained. https://evchargeright.com/blog/nec-220-82-explained
15. Kopperfield - EV Chargers and Load Calculations. https://www.kopperfield.com/blog/ev-charger-load-calc
16. ExpertCE - How to Calculate EVSE Load Requirements per NEC 2023 (220.57). https://expertce.com/courses/electricians-guide-for-nec-2023/lessons/how-to-calculate-evse-load-requirements-per-nec-2023/
17. UpCodes - NEC 220.57 Electric Vehicle Supply Equipment (EVSE) Load. https://up.codes/s/electric-vehicle-supply-equipment-evse-load
18. Mike Holt Forum - EV chargers, Article 220.83 and 310.12. https://forums.mikeholt.com/threads/ev-chargers-article-220-83-article-310-12-another-residential-idiot-arguing-with-the-ahj.2581798/
19. NeoCharge - Smart Splitter (two EVs on one 240V circuit, UL listed). https://getneocharge.com/products/neocharge-smart-splitter
20. Emporia Energy - Intelligent Load Sharing for Multiple EV Chargers. https://www.emporiaenergy.com/blog/introducing-intelligent-load-sharing/
21. EI Electrical - Dual-EV Households: Can You Charge Two Cars on a Single Circuit? https://www.eielectrical.com/blog/dual-ev-households-can-you-charge-two-cars-on-a-single-circuit/
22. PG&E - Electric Vehicle (EV) Rate Plans (EV2-A). https://www.pge.com/en/account/rate-plans/electric-vehicles.html
23. Solar.com - 2026 SCE Time-of-Use (TOU) Rates: A Beginner's Guide (TOU-D-PRIME). https://www.solar.com/learn/sce-time-of-use-tou-rates-a-beginners-guide/
24. DOE - The eGallon Methodology. https://www.energy.gov/articles/egallon-methodology
25. Coltura - Electric Vehicle vs Gas Calculator (2026). https://coltura.org/ev-vs-gas-calculator/
26. NRDC - Electric vs. Gas Cars: Is It Cheaper to Drive an EV? https://www.nrdc.org/stories/electric-vs-gas-cars-it-cheaper-drive-ev
27. Recharged - Electric Car Fuel Savings Per Year: Real Numbers for 2026. https://recharged.com/articles/electric-car-fuel-savings-per-year
28. HomeGuide - Cost to Replace or Upgrade an Electrical Panel (2026). https://homeguide.com/costs/cost-to-replace-electrical-panel
29. Homewyse - Cost to Upgrade Electrical Service Panel (2026 calculator). https://www.homewyse.com/services/cost_to_upgrade_electrical_service_panel.html
30. Angi - Cost to Upgrade Electrical Panel to 200 Amps. https://www.angi.com/articles/ask-angie-what-does-it-cost-upgrade-200-amps.htm
31. Energy Institute at Haas - Three Facts About EVs and Multi-Vehicle Households. https://energyathaas.wordpress.com/2021/09/20/three-facts-about-evs-and-multi-vehicle-households/
32. US EPA - What If One of Your Cars Was Electric? https://www.epa.gov/greenvehicles/what-if-one-your-cars-was-electric
33. Southern California Edison - Charge Ready Home (panel-upgrade rebates). https://evhome.sce.com/
34. J.D. Power - Choosing the Right EV Home Charger. https://www.jdpower.com/cars/shopping-guides/choosing-the-right-ev-home-charger
35. Edmunds - The True Cost of Powering an Electric Car. https://www.edmunds.com/fuel-economy/the-true-cost-of-powering-an-electric-car.html
36. ScienceDirect - Why buy multiple electric vehicles? (California, 2025). https://www.sciencedirect.com/science/article/pii/S2214629625004724
37. Energy Solutions - Electrical Panel Upgrade for EV Charging 2026: Cost & Installation Guide. https://energy-solutions.co/articles/sub/electrical-panel-upgrade-ev-charging

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© 2026 ChargeCostLab. Independent EV running-cost analysis. Figures reflect data available to Q2 2026 and will change as rates, vehicle efficiency and code adoption move. This article is informational and not financial or electrical-safety advice; always have a licensed electrician perform a load calculation before electrical work. Last reviewed 30 June 2026.