V2G Benefit Calculator

Vehicle & Household Parameters

Enter your vehicle specs and typical usage below. If you're not sure, leave the defaults — they reflect a typical Metro Manila EV owner.

{{ batterySize }} kWh

Minimum State of Charge % ≈ {{ (batterySize * minSoc / 100 * evEfficiencyN).toFixed(0) }} km reserved

{{ minSoc }}%

Average Daily Travel km / day

{{ dailyKm }} km

Average Monthly Electricity Bill {{ activeCurrency }} / mo

Feedback optional

{{ feedbackWordCount }} / 200 words

Capacity Summary

SoC window ({{ minSoc }}% → {{ maxSoc }}%){{ usableRawN.toFixed(1) }} kWh

Travel reservation ({{ dailyKm }} km ÷ {{ evEfficiencyN }} km/kWh)−{{ energyForTravelN.toFixed(1) }} kWh

Sellable via V2G{{ sellableCapN.toFixed(1) }} kWh

Daily travel uses ≥80% of usable capacity. V2G headroom is limited.

EVSE Connection Rate

How often is your EV plugged in during each part of the day? Set 100% if it's almost always connected, lower if you're often out. The more time plugged in, the more it can earn. Set weekdays and weekends separately — most people are home more on weekends.

Weekdays (Mon – Fri)

{{ slot.label }} {{ weekday[slot.key] }}%

Weekends (Sat – Sun)

{{ slot.label }} {{ weekend[slot.key] }}%

Almost there — Display your V2G Report

Select your country so we can show financial values in your local currency, then click Display Report.

Details pre-filled from your survey — check and confirm below

Country ★ — sets your display currency

All financial values will display in {{ activeCurrency }}{{ fxRateLabel }}

Hourly Energy Tariff

Buy (charging)

Sell (discharging)

USD / kWh

Save your report

Projected Annual Benefit · 261 weekdays · 104 weekend days · 365 days/yr

Annual V2G Revenue

selling {{ results.avgDailyDischarge.toFixed(1) }} kWh/day at peak

Annual Charging Cost

{{ results.avgDailyCharge.toFixed(1) }} kWh/day (V2G + travel)

Avoided Fuel Costs

{{ results.litresSaved.toFixed(0) }} L/yr at {{ fmtC2(fuelCostN) }}/L

EV Maintenance Savings

vs petrol car servicing costs

VPP-V2G Subscription

−{{ fmtC(subAnnualN) }}

{{ fmtC(subMonthlyN) }}/mo × 12

Total Annual Savings

vs the cost of a petrol car

Total 5-Year Benefits of an EV with V2G Charging

Based on {{ fmtC(results.totalHouseholdSaving) }}/year total savings × 5 years. Includes V2G revenue, avoided fuel, reduced maintenance and lower electricity costs vs owning a petrol car.

Annual kWh Energy Balance — Reconciliation

All figures are annual kWh — consistent with the financial projections above

Category	Annual kWh	Avg kWh/day	Note
↑ Battery Charging	+{{ results.reconcAnnualCharged.toFixed(1) }}	{{ (results.reconcAnnualCharged/365).toFixed(2) }}	V2G pre-charge {{ results.reconcAnnualV2gCharge.toFixed(1) }} + travel {{ results.reconcAnnualTravelCharge.toFixed(1) }} kWh
↓ Travel (driving)	−{{ results.reconcAnnualTravelCharge.toFixed(1) }}	{{ (results.reconcAnnualTravelCharge/365).toFixed(2) }}	{{ dailyKm }} km/day ÷ {{ evEfficiencyN }} km/kWh × 365 days
↓ Battery Discharging (V2G)	−{{ results.reconcAnnualDischarged.toFixed(1) }}	{{ (results.reconcAnnualDischarged/365).toFixed(2) }}	Sold to grid — drives Annual V2G Revenue
↓ Round-trip Loss	−{{ results.reconcAnnualEffLoss.toFixed(1) }}	{{ (results.reconcAnnualEffLoss/365).toFixed(2) }}	10% of V2G pre-charge ({{ results.reconcAnnualV2gCharge.toFixed(1) }} × 10%)
= Net Balance	{{ results.reconcCheck.toFixed(3) }}	—	Must equal 0 — confirms charge = discharge + travel + losses

Estimated Daily Battery State of Charge — 24h Profile

Max SoC

Min SoC

Charging

Discharging

Total Annual Household Energy Cost — Before vs After V2G

{{ fmtCShort(compareMaxVal) }} {{ fmtCShort(compareMaxVal*0.75) }} {{ fmtCShort(compareMaxVal*0.5) }} {{ fmtCShort(compareMaxVal*0.25) }} {{ currencySymbol }}0

Before V2G

After V2G

Electricity (net of V2G revenue & charging)

Petrol fuel cost

VPP-V2G subscription

Hourly V2G Activity Profile (opacity = connection probability)

Charging

Discharging

Idle

⚠ Tariff prices and internal values in USD. Financial values displayed in {{ activeCurrency }}{{ fxRateLabel }}. Electricity price ${{ elecPriceN.toFixed(2) }}/kWh. Assumes 90% round-trip efficiency, optimal daily scheduling, and 365 days/year. Travel reservation deducted from dischargeable capacity. Does not account for battery degradation, grid constraints, or regulatory requirements. Not financial advice.