When residential EV charging requires a panel upgrade (and when it does not)

The upsell discrepancy: industry data on actual vs told need

The gap between how often a residential electrical panel actually requires upgrade for Level 2 EV charging and how often homeowners are told they require an upgrade represents a documented consumer protection concern in the residential EV adoption space. Two industry data sources frame the issue.

J.D. Power EV ownership research tracking actual installation outcomes for residential EV charging indicates approximately 28% of installations require panel upgrade work under formal load calculations. The 28% rate reflects actual contractor completions in homes where panel work was genuinely required under NEC methodology, not homes where panel work was recommended regardless of necessity. The 72% majority of residential EV installations complete without requiring panel replacement, using existing service capacity with proper circuit addition for the Level 2 charger.

Electrical Safety Foundation International (ESFI) surveys of homeowners who received residential EV charging quotes indicate up to 65% of homeowners are initially told by electricians that they require a full, multi-thousand-dollar panel upgrade. The 65% figure captures initial contractor recommendations, not actual load calculations. The 37-percentage-point gap between the 28% actual-need and 65% told-need rates represents substantial unnecessary spending driven by casual professional recommendations rather than formal technical analysis.

Understanding your panel: amperage, age, and condition

The first step in evaluating EV charging panel capacity is understanding the baseline characteristics of your existing panel. Three attributes drive the conversation: amperage rating (the total service capacity), age (which correlates with historical safety and capacity standards), and condition (physical state of the panel and its breakers).

Panel amperage: the capacity ceiling

Residential electrical panels are rated for total amperage capacity, which combines with 240-volt service to establish the maximum simultaneous load the panel can safely support. Four amperage tiers dominate US residential housing stock:

• 60-amp panels (14,400 watts total capacity): Found in homes built pre-1960 that have not received service upgrades. The 60-amp capacity cannot safely support a Level 2 charger alongside typical modern household loads. Panel upgrade is mandatory before any Level 2 charging installation. For context, a 48-amp Level 2 charger alone represents 11,520 watts of continuous load — 80% of the entire 60-amp panel capacity before any other household consumption.
• 100-amp panels (24,000 watts total capacity): Dominant in homes built 1960-1990. Load calculation outcome depends heavily on existing household loads. A 100-amp home with central AC (approximately 3,500 watts), electric range (approximately 8,000 watts), electric water heater (approximately 4,500 watts), and electric dryer (approximately 5,000 watts) is already approaching the 80% continuous load ceiling (19,200 watts) with existing continuous and non-continuous loads before any EV charging. Adding a 48-amp Level 2 charger (11,520 watts) requires panel upgrade. Adding a 24-amp Level 2 charger (5,760 watts) may still require upgrade. Adding a 16-amp Level 2 charger (3,840 watts) with Dynamic Load Management may fit within capacity.
• 150-amp panels (36,000 watts total capacity): Found in homes built 1985-2005 or in homes that received interim service upgrades. The 150-amp capacity typically accommodates Level 2 charging without upgrade, though formal load calculation remains advisable for homes with multiple heavy electric appliances (electric vehicle, electric heat pump, electric range, electric water heater).
• 200-amp panels (48,000 watts total capacity): Standard in homes built after 1990 and typical of homes that received comprehensive service upgrades. The 200-amp capacity accommodates Level 2 charging at any practical amperage (16-amp through 48-amp) alongside standard household loads without approaching the 80% continuous load ceiling. For most 200-amp households, panel upgrade is not required for Level 2 EV charging installation.

Panel age: a proxy for standards compliance

Panel age correlates with electrical standards compliance in two important ways. First, electrical codes have evolved over decades, so older panels may not meet current standards for new high-draw continuous load installations. Second, specific panel brands manufactured in certain time periods have documented safety issues requiring full replacement regardless of load calculations — covered in the historical panel problem section below.

For practical purposes, three age tiers help frame the panel evaluation:

• Pre-1960 panels: Likely 60-amp service, likely require mandatory upgrade regardless of load calculation. Panel is often located in historic location (basement wall, utility room) with limited access.
• 1960-1990 panels: Likely 100-amp service, may include Federal Pacific Electric Stab-Lok or Zinsco brand panels with documented safety recalls requiring mandatory replacement. Load calculation outcome depends on existing household loads and whether proper breakers are present.
• Post-1990 panels: Likely 150-amp or 200-amp service, modern breakers, generally compatible with Level 2 EV charging. Load calculation generally supports installation without upgrade, though formal verification remains advisable.

Panel condition: beyond nameplate specifications

Even a panel with adequate amperage rating may require replacement if its physical condition is compromised. Signs of panel condition issues include: visible corrosion on the panel surface or inside the enclosure, frequently tripping breakers under normal load conditions, warm or hot panel surface during normal operation, buzzing or crackling sounds from the panel, visible scorching or burn marks on breakers or panel surface, or exposed wiring extending from the panel. Any of these conditions suggests panel replacement is appropriate for safety reasons even if nameplate amperage would otherwise accommodate EV charging.

When a panel upgrade is actually required: the NEC load calculation

The National Electrical Code load calculation is the formal technical methodology for determining whether an existing panel can safely accommodate an additional continuous load such as a Level 2 EV charger. The calculation considers all existing continuous and non-continuous loads, applies specific NEC rules for how different load types count toward total panel capacity, and determines whether adding the EV charger pushes total loading above the 80% continuous load threshold.

The 80% continuous load rule

Per NEC Section 210.19 and related sections, a continuous load (defined as a load operating for three or more hours continuously) cannot exceed 80% of the circuit or panel capacity. The rule reflects thermal considerations: continuous current flow creates heat buildup in conductors, breakers, and panel bus bars, and the 80% derating provides safety margin against thermal damage.

For a 100-amp panel at 240 volts, total capacity is 100 × 240 = 24,000 watts. Applying the 80% continuous load rule, the panel can sustain approximately 19,200 watts of continuous load (not accounting for non-continuous loads that also count against capacity under specific calculation rules). For a 200-amp panel, continuous load capacity is 200 × 240 × 0.80 = 38,400 watts.

EV charging as continuous load

A Level 2 EV charger operates for several hours at essentially constant current while delivering a full charge cycle. The NEC classifies EV charging as a continuous load, which means the charger's rated amperage counts against the panel's 80% continuous load capacity. The specific charger amperage determines how much continuous load headroom is consumed:

• 48-amp Level 2 charger (60-amp breaker required): 48 × 240 = 11,520 watts continuous load
• 40-amp Level 2 charger (50-amp breaker required): 40 × 240 = 9,600 watts continuous load
• 32-amp Level 2 charger (40-amp breaker required): 32 × 240 = 7,680 watts continuous load
• 24-amp Level 2 charger (30-amp breaker required): 24 × 240 = 5,760 watts continuous load
• 16-amp Level 2 charger (20-amp breaker required): 16 × 240 = 3,840 watts continuous load

The practical implication is that lower-amperage chargers consume substantially less panel capacity. For borderline load calculation outcomes, downsizing the charger from 48-amp to 24-amp cuts the continuous load from 11,520 watts to 5,760 watts — often the difference between requiring panel upgrade and fitting within existing capacity.

The load calculation example illustrates why 100-amp panels in fully-electric homes almost always require intervention before Level 2 EV charging can be safely installed. In the illustrated scenario, existing continuous loads from central AC, electric range, electric water heater, and electric dryer already consume 21,000 watts — above the 19,200 watt 80% continuous load ceiling before any EV charger is added. Every EV charger size pushes total loading further over capacity. Even the smallest practical Level 2 charger (16-amp, 3,840 watts) pushes total to 24,840 watts, just over the 24,000 watt panel capacity — and Dynamic Load Management becomes mandatory, not optional, to prevent main breaker trips when appliances activate simultaneously with charging.

The illustration explains why fully-electric 100-amp homes represent the hardest residential EV charging installation case. Three different outcomes apply depending on actual household electrical load composition. Fully-electric homes with all four heavy loads (as illustrated) typically require panel upgrade to 150-amp or 200-amp service regardless of charger size selection — even DLM cannot bridge the capacity gap when existing loads already exceed the panel ceiling. Mixed-fuel homes (gas range, gas dryer, gas water heater, electric central AC) have substantially lower baseline load of approximately 3,500-7,500 watts and can typically accommodate a 24-amp or 32-amp charger within 100-amp capacity, often with DLM. Mostly-gas homes without central AC may support even a 48-amp charger within 100-amp capacity with DLM. Every household's calculation differs based on actual appliance load composition, which is why formal load calculation is essential rather than reliance on panel amperage alone.

The historical panel problem: Federal Pacific and Zinsco

Two specific panel brands manufactured from the 1950s through 1980s have documented safety issues severe enough to mandate full panel replacement regardless of load calculation outcomes: Federal Pacific Electric Stab-Lok panels and Zinsco panels. These panels are still present in substantial numbers of older US homes, particularly in regions with high concentrations of mid-century housing stock. For prospective residential EV charging installations in these homes, the panel brand issue overrides the load calculation question entirely — the panel must be replaced before any high-draw continuous load circuit (including EV charging) can be safely added.

Federal Pacific Electric Stab-Lok panels

Federal Pacific Electric (FPE) manufactured Stab-Lok circuit breaker panels from the late 1950s through the early 1980s, installed in millions of US homes. Multiple independent investigations and expert analyses from the 1980s onward have documented that FPE Stab-Lok breakers fail to trip during overload conditions at substantially higher rates than other panel brands. Specifically, Stab-Lok breakers have been documented failing to interrupt current during short circuits and overloads — the exact failure mode the breaker exists to prevent. The failure to trip creates fire risk because conductors can continue drawing excessive current indefinitely, overheating wiring and connections until insulation ignites.

The FPE Stab-Lok issue has been documented by Consumer Product Safety Commission investigations in the 1980s, extensive forensic engineering analyses, and insurance industry claim data. While FPE Stab-Lok panels were never formally recalled (the company declared bankruptcy before formal recall could proceed), the safety consensus among electricians, home inspectors, and insurance underwriters is that these panels should be replaced regardless of apparent operating condition. Adding a high-draw continuous load such as EV charging to an FPE Stab-Lok panel is categorically unsafe.

Identification: FPE Stab-Lok panels have "Federal Pacific Electric" or "FPE" stamped on the panel exterior and typically have distinctive narrow single-pole breakers with red or orange breaker handles. The breakers insert into stab connectors (hence "Stab-Lok") rather than screw terminals, which contributes to the connection failure mode. Any homeowner uncertain whether their panel is an FPE Stab-Lok should have an electrician or qualified home inspector verify.

Zinsco panels

Zinsco panels, manufactured from the 1950s through the 1970s under both the Zinsco and Sylvania brands (Sylvania purchased Zinsco in 1973), have similar documented failure patterns. Zinsco breakers have been documented failing to trip during overload conditions, with additional failure modes including bus bar corrosion that creates arcing hazards and breaker-to-bus connections that fail under load. As with FPE Stab-Lok, Zinsco panels have not been formally recalled but the safety consensus is that replacement is appropriate before any high-draw continuous load installation.

Identification: Zinsco panels have "Zinsco" or "Sylvania" stamped on the panel exterior and typically have breakers with colored handles (blue, green, or red) in distinctive color-coded patterns rather than the uniform black or gray handles of modern breakers. The panel enclosure often has a bronze or copper-colored faceplate rather than the gray or beige of modern panels.

What this means for EV charging installations

For prospective residential EV customers with FPE Stab-Lok or Zinsco panels, the practical sequence is: verify panel brand identification with a qualified electrician, plan for mandatory full panel replacement as the first step of EV charging installation, apply for utility make-ready programs where available (which can cover $1,500-$6,500 of the panel replacement cost in territories with CSMR programs), and schedule the panel replacement to be completed before any EV charger installation. The combined panel-plus-charger project typically runs $4,000-$7,000 depending on panel location, service entrance condition, and whether utility-side work is also required. Where available utility make-ready programs apply (such as PSE&G New Jersey's $6,500 maximum or JCP&L's $7,000 maximum), customer net cost can drop substantially below the $4,000-$7,000 project cost range.

Workarounds: avoiding full panel upgrade when possible

For borderline load calculation cases — where the panel is near capacity but not clearly over, or where downsizing the EV charger could resolve the capacity issue — two primary workaround approaches can avoid the $3,000-$5,000 full panel replacement. These workarounds do not apply to homes with FPE Stab-Lok or Zinsco panels (which require replacement regardless) or to homes with genuine substantial over-capacity situations (where the panel is already running near or above the 80% threshold even without EV charging). But for the substantial middle category of homes with modest capacity constraints, workarounds can save thousands.

Dynamic Load Management (DLM)

Dynamic Load Management devices are smart energy monitoring systems that connect to the household electrical panel and continuously track total household electricity draw in real time. When total household draw approaches the panel's 80% continuous load threshold, the DLM device automatically throttles or temporarily pauses EV charging to keep total load below the threshold. When high-draw household appliances (electric range, electric dryer, electric heat pump, air conditioning compressor startup) finish their cycles and total draw drops, the DLM device automatically resumes full EV charging capacity.

The practical effect is that the EV charger operates at full capacity when household load is low (typical overnight hours when AC is off, appliances are not running, and household consumption drops to baseline) and automatically throttles when household load is high (afternoon and evening peak hours when appliances are active). For most residential EV charging patterns, overnight charging captures substantial charging throughput without triggering DLM throttling, and the throttling that does occur during occasional heavy-load periods has negligible impact on daily charging adequacy.

Several DLM products are available on the US market at prices ranging from $500 to $1,500 installed, substantially below the $3,000-$5,000 cost of full panel replacement. Specific product offerings include smart energy managers from brands such as simpleSwitch, SPAN smart panel, DCC-9/DCC-10 switches, and various load controllers integrated with specific smart Level 2 chargers (ChargePoint Home Flex with power sharing, Wallbox Pulsar Plus with power control, Emporia EV charger with load management).

Lower-amperage chargers

The second workaround approach reduces the EV charger's continuous load by selecting a lower-amperage charger. Dropping from a 48-amp charger (requiring 60-amp breaker, 11,520 watts continuous) to a 24-amp charger (requiring 30-amp breaker, 5,760 watts continuous) cuts the EV charger's panel load exactly in half — often the difference between requiring panel upgrade and fitting within existing capacity.

The practical trade-off is slower charging speed, but overnight charging duration almost always exceeds vehicle charging need for typical daily driving. A 24-amp Level 2 charger delivers approximately 17-18 miles of range per hour of charging. Over an 8-hour overnight window, that is approximately 140 miles of range — substantially above typical US daily driving distances of 30-50 miles. Even a 16-amp Level 2 charger (delivering approximately 12 miles of range per hour, or approximately 96 miles over 8 hours) comfortably accommodates typical daily charging needs.

Many residential EV households never actually use the full capacity of a 48-amp charger because overnight charging duration is the operational constraint, not charger speed. For these households, installing a 24-amp or lower-amperage charger from the outset avoids the panel capacity question entirely while delivering adequate charging capacity for actual daily driving patterns. The hardware cost difference is minimal (lower-amperage smart chargers are generally priced similarly to higher-amperage units), but the installation cost difference can be dramatic if the lower-amperage charger allows avoiding panel upgrade.

Comparing the three paths

The following chart compares the three primary paths for residential EV charging installation in homes where panel capacity is a question: full panel upgrade, Dynamic Load Management, and lower-amperage charger selection.

Cost reality: what a panel upgrade actually involves

For homes where panel upgrade is genuinely required, understanding what the $3,000-$5,000 typical cost actually covers helps evaluate individual contractor quotes and identify unusual overages. A standard residential panel upgrade from 100-amp to 200-amp service in a typical US single-family home involves five cost categories.

• Panel + breakers ($500 - $800): The new 200-amp main panel with ground bar, neutral bar, and new breakers for existing circuits (typically 20-30 circuits in a residential panel). Modern panels from Square D, Siemens, Eaton, or Leviton run $200-$400 for the panel itself plus $150-$400 for the full breaker complement.
• Electrical labor ($1,500 - $2,500): The electrician labor to remove the old panel, mount and wire the new panel, transfer all existing circuits to the new breakers, label circuits properly, and verify operation. A typical residential panel upgrade takes 6-10 hours of electrician labor plus any helper time. Hourly rates vary by region; $100-$150 per hour is typical for licensed electrical work.
• Service entrance work ($500 - $1,200): Depending on whether the service entrance cable from the meter to the panel is adequate for 200-amp service, additional work may include replacing the service entrance conductor, upgrading the meter base, and potentially coordinating with the utility for temporary disconnection and reconnection. Service entrance condition varies substantially by home age and prior upgrade history.
• Permit and inspection fees ($150 - $500): Municipal permit fees for electrical work vary by jurisdiction; typical range for a residential panel upgrade is $150-$500. The permit cost includes the required final inspection by the municipal electrical inspector. Permit and inspection are mandatory in essentially all US jurisdictions; work performed without permit creates liability issues for both homeowner and electrician.
• Utility coordination ($0 - $800): Depending on utility, panel upgrade may require temporary disconnection of utility service during the swap (typically a brief outage, 1-4 hours). Some utilities perform the disconnect/reconnect at no additional cost as part of ordinary service work; others charge coordination fees. In rare cases where meter base replacement is needed, additional charges may apply. For homes where the utility determines a utility-side upgrade is also needed (new transformer capacity, new service drop, service pole work), additional costs can run into thousands — this is where Utility-Side Make-Ready programs in specific utility territories cover substantial expense.

Total project cost of $3,000-$5,000 for a straightforward residential panel upgrade reflects reasonable contractor pricing for the five cost categories above. Quotes substantially above $5,000 for a standard panel upgrade (without exceptional circumstances such as asbestos remediation, structural work to access the panel location, or extensive service entrance replacement) warrant comparison quotes and detailed breakdown review. Quotes substantially below $3,000 may indicate unlicensed work, bypassing permit requirements, or scope-cutting that creates safety or compliance issues.

Consumer protection: getting a credible second opinion

Given the documented 37-percentage-point gap between actual-need and told-need for residential EV charging panel upgrades, obtaining a credible second professional opinion before authorizing a $3,000-$5,000 upgrade project is a reasonable consumer protection practice. Four specific approaches help establish whether an upgrade recommendation is technically justified or represents casual upsell.

Request the formal NEC load calculation. Any electrician recommending a panel upgrade for EV charging installation should produce a formal NEC load calculation showing specific existing loads, the proposed EV charger load, and the resulting total that exceeds the 80% continuous load threshold or total panel capacity. The calculation is standard professional practice; electricians who cannot or will not produce one are not operating at professional standards. If the first electrician cannot produce the calculation, the recommendation may not be technically justified.

Obtain a second quote from an independent contractor. Request a quote from an electrician unaffiliated with the first contractor. The second electrician should perform an independent load calculation and provide an independent recommendation. If the two professionals reach substantially different conclusions, the discrepancy itself is informative — typically indicating that at least one assessment was not based on rigorous calculation.

Verify EVITP certification. The Electric Vehicle Infrastructure Training Program (EVITP) is a certification program for electricians working on EV charging installations. EVITP-certified electricians have completed specific training on EV charging code requirements, load calculations, and installation practices. For installations under utility make-ready programs (which typically require EVITP certification), the certification is a verification of professional qualifications. For installations outside utility programs, EVITP certification is a positive indicator of specialized training.

Request itemized quote detail. A quote broken down by cost category (panel + breakers / electrical labor / service entrance work / permit and inspection / utility coordination) allows comparison across contractors and identification of unusual overages. Quotes provided only as lump-sum totals without category breakdown make professional comparison difficult and may conceal scope expansion or margin padding.

Utility make-ready programs: when they help

For homes where panel upgrade is genuinely required, utility make-ready programs in several US territories can cover substantial share of the upgrade cost. Programs vary dramatically by utility and state regulatory environment; the following summary covers the programs documented in Drive Economics utility deep-dives.

• PSE&G New Jersey — Customer-Side Make-Ready up to $1,500 for behind-the-meter electrical work plus Utility-Side Make-Ready up to $5,000 for pole-to-meter upgrades. Combined up to $6,500 per residential site. See the PSE&G residential analysis.
• JCP&L New Jersey — EV Driven Program with CSMR up to $1,500 plus USMR up to $5,500. Combined up to $7,000 per residential site, highest make-ready coverage in Drive Economics inventory. See the JCP&L residential analysis.
• PSEG Long Island — No residential make-ready program; relies on rate structure (Rate 195 EV TOD) as primary economic lever plus modest $100-$400 Level 2 charger rebate. See the PSEG LI residential analysis.
• Con Edison New York — No residential make-ready program; residential customers rely on SmartCharge NY managed charging rewards (~$400/yr) and Rate III TOU alternatives. See the Con Edison rate analysis.
• Pennsylvania utilities (PECO, PPL, DLC, FirstEnergy PA) — No residential make-ready programs; residential customers rely on various managed charging programs, TOU rates, and the PA DEP state EV rebate.
• Other US territories — Several California utilities, DTE Michigan, Eversource/National Grid Massachusetts, and various other utilities offer residential charger rebates ($250-$1,000 range) that help offset hardware cost but do not cover panel upgrade work specifically.

The practical pattern is that New Jersey represents the most favorable US utility environment for residential panel upgrade cost coverage, with both PSE&G and JCP&L offering substantial CSMR + USMR stacking. California utility territories offer substantial residential charger rebates but less make-ready coverage. Pennsylvania and most other US territories offer limited or no residential infrastructure cost coverage, placing panel upgrade cost burden entirely on the homeowner.

Further considerations

Several additional factors shape the panel upgrade decision for specific households.

Future-proofing for additional electrification. Panel upgrade decisions should consider not just current EV charging need but likely future electrification. Households planning to add electric heat pumps, electric water heaters, electric ranges, or additional EV chargers in coming years benefit from upgrading to 200-amp service during the EV charging installation project rather than requiring multiple incremental upgrades over time. For homes currently on 100-amp service with modest existing loads, upgrading to 200-amp service during EV installation (even if 100-amp could technically accommodate the current single EV charger) can be strategically correct for long-term electrification planning.

Home insurance considerations. Some home insurance underwriters identify older panel brands (FPE Stab-Lok, Zinsco) as risk factors that increase premium or require panel replacement as condition of coverage. Homes with these panels may face escalating insurance costs over time independent of EV charging considerations; the EV installation project can be a natural trigger for addressing a long-term insurance liability.

Resale value considerations. Modern 200-amp electrical service with current-generation panel is generally viewed as a positive feature in residential real estate transactions, particularly for buyers who may want to add EV charging, home office setups, or other high-draw electrical loads. For homes planning sale within several years, the panel upgrade investment may partially recover through transaction value even beyond the direct EV charging benefit.

DIY installation is generally not advisable for panel work. Panel upgrades involve working with live service conductors at the meter base, high-amperage connections, and permit and inspection requirements that effectively require licensed electrician performance. Homeowners with substantial electrical experience may install EV charging circuits within existing panel capacity on standard breakers, but panel replacement itself is not a reasonable DIY project — both for safety reasons and for permit and insurance compliance reasons.

Panel location affects installation complexity. Panels located in finished basement areas, exterior panel boxes, or basements with limited access may require additional labor for safe panel replacement. For homes with difficult panel locations, project cost may trend toward the higher end of the typical $3,000-$5,000 range. Prospective applicants should request site visit assessment rather than relying on remote quotes.

Timing with other electrical work. Households planning major electrical work for other reasons (kitchen renovation, basement finishing, home addition) may benefit from combining the panel upgrade with the other electrical project to share overhead costs (permit, utility coordination, service entrance work).

Method. Industry data on panel upgrade incidence (approximately 28% actual need per J.D. Power EV ownership completion research, up to 65% told need per Electrical Safety Foundation International surveys, 20-30% national range for homes requiring upgrades) reflects published industry data as of 2026. Regional variation around the national range is substantial; older housing stock regions (Northeast urban cores, mid-Atlantic established suburbs, mid-century housing developments nationwide) likely run above the national average, while newer construction regions in the Southeast, Mountain West, and new suburban developments likely run below. National Electrical Code requirements (210.19 continuous load rule, 80% continuous load capacity threshold, continuous load classification for EV charging) reflect current NEC provisions. Specific calculation methodology in individual installations should follow current adopted NEC version in the relevant jurisdiction (NEC adoption varies by state and year). Panel upgrade cost estimates ($3,000-$5,000 typical range, broken into five cost categories: panel + breakers $500-$800, electrical labor $1,500-$2,500, service entrance work $500-$1,200, permit and inspection $150-$500, utility coordination $0-$800) reflect representative US residential pricing as of 2026 for standard panel upgrade projects without exceptional circumstances. Actual costs vary substantially by region, home condition, and project specifics. Federal Pacific Electric Stab-Lok and Zinsco panel safety issues reflect documented investigations by Consumer Product Safety Commission, forensic engineering analyses, and insurance industry claim data; these panels were never formally recalled but industry safety consensus supports replacement. Workaround cost estimates (Dynamic Load Management $500-$1,500 installed, lower-amperage charger minimal additional cost) reflect representative current market pricing. Charger range delivery estimates (48-amp ~46 mi/hr, 24-amp ~17-18 mi/hr, 16-amp ~12 mi/hr) use typical EV efficiency of approximately 0.30 kilowatt-hours per mile; actual range delivery varies by vehicle efficiency. Utility make-ready program parameters reflect current program documentation as of Q3 2026 and are subject to change through regulatory proceedings. All numbers are estimates for guidance; actual outcomes depend on specific household circumstances, professional assessment, current rates and program parameters at project planning.