Use-case / Total Cost of Ownership analysis · Tradvolt green-tech trade desk · Evidence date: 2026-01-15 · Limitation: 20-unit fleet, 5-year horizon, EU/US duty/market mix — see §8
Answer / verdict: Converting a 20-unit light-commercial fleet from diesel to battery-electric vehicles over a 5-year horizon yields an NPV of +USD 191,556 at an 8.00% discount rate. Simple payback = 3.07 years and discounted payback = 3.67 years from capex; TCO per km is USD 0.120 (EV) vs USD 0.251 (ICE), a per-km saving of USD 0.130, totalling USD 1,042,400 saved over the 5-year horizon. Reference equipment: BYD T3 pure-electric van (LHD) with CATL LFP battery; ICE benchmark = comparable diesel LCV. Verdict: Convert under the bounded model assumptions in §3.
| Metric | Value | Unit / basis |
|---|---|---|
| Equipment | BYD T3 (BEV) vs diesel LCV | Light commercial, 20-unit fleet |
| Location | EU + North America mix | Duty scope §6 |
| Horizon | 5 | years |
| Discount rate | 8.00 | % / yr (assumption §3) |
| Evidence date | 2026-01-15 | Model run |
| Limitation | Bounded model assumptions §3; duty rates §6 PENDING | — |
| NPV | 191,556.12 | USD |
| Simple payback | 3.07 | year |
| Discounted payback | 3.67 | year |
| TCO per km — EV | 0.1202 | USD/km |
| TCO per km — ICE | 0.2505 | USD/km |
| Savings per km | 0.1303 | USD/km |
| Savings over horizon | 1,042,400.00 | USD |
| IRR | 0.1878 | 18.78% |
| Verdict | Convert | NPV positive under §7 sensitivity runs |
| Parameter | Value | Note |
|---|---|---|
| Fleet size | 20 units | Light-commercial BEV vs diesel LCV |
| Reference EV model | BYD T3 (pure-electric van) | EU spec; CATL LFP battery |
| Reference ICE benchmark | Diesel LCV, comparable payload/class | Generic 2.0–2.5 t GVW |
| Utilisation | 80,000 km/unit/yr | High-utilisation fleet, bounded by warranty |
| Analysis horizon | 5 years | Aligned with battery warranty window |
| Discount rate | 8.00 % | Model assumption (see §3) |
| Geographic scope | EU + North America mix | Duty rows §6 PENDING broker confirmation |
| Currency | USD | FX assumption §3 |
| # | Input | Value / designation | Source |
|---|---|---|---|
| 1 | BYD T3 product page (EU) | BYD T3 pure-electric van, LHD EU spec | https://www.byd.com/eu/vehicle-passenger |
| 2 | BYD T3 technical specs | Product brochure (PDF) | https://www.bydeurope.com/uploads/2024/03/BYD_T3_Brochure_EN.pdf |
| 3 | CATL battery technology (LFP) | LFP cell family (cell spec confirmed at RFQ) | https://www.catl.com/en/ess/ |
| 4 | EV conductive charging system | IEC 61851-1:2017 (Part 1) | https://webstore.iec.ch/en/publication/33644 |
| 5 | Secondary lithium cells/batteries for industrial applications (ESS/motive) | IEC 62619:2022 ed.2 (TC 21/SC 21A) | https://webstore.iec.ch/en/publication/64073 |
| 6 | UN transport tests for lithium batteries (UN 38.3) | UN Manual of Tests and Criteria, Rev.7 (ST/SG/AC.10/11/Rev.7) — §38.3 | https://unece.org/transport/dangerous-goods/un-manual-tests-and-criteria |
| 7 | EU Battery Regulation | Regulation (EU) 2023/1542 | https://eur-lex.europa.eu/eli/reg/2023/1542/oj |
| 8 | EU CO₂ fleet benchmark (LDV) | Regulation (EU) 2019/631 | https://eur-lex.europa.eu/eli/reg/2019/631/oj |
| 9 | EU TARIC consultation (HS/duty lookup) | EC DDS2 TARIC | https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en |
| 10 | US HTS lookup | USITC HTS search | https://hts.usitc.gov/ |
All other numeric inputs are bounded model assumptions (§3) and are explicitly disclosed as such. Equipment-level torque, SOC and voltage limits are not stated on this page; the OEM manual title and revision are confirmed at RFQ against the consignment-specific build sheet.
| Metric | Value |
|---|---|
| Currency | USD |
| Horizon (years) | 5 |
| Discount rate | 8.00 % |
| Total undiscounted cost (USD) | 641,061.83 |
| Total discounted cost / PV of costs (USD) | 640,844.07 |
| Total undiscounted benefit (USD) | 1,042,400.00 |
| Total discounted benefit (USD) | 832,400.19 |
| NPV (USD) | 191,556.12 |
| IRR | 0.1878 |
| Simple payback (year) | 3.07 |
| Discounted payback (year) | 3.67 |
| TCO per km — EV (USD/km) | 0.1202 |
| TCO per km — ICE (USD/km) | 0.2505 |
| Savings per km (USD/km) | 0.1303 |
| Savings over horizon (USD) | 1,042,400.00 |
| Year | Cost (USD) | Benefit (USD) | Net (USD) | Discount factor | Discounted net (USD) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 640,000.00 | 0.0000 | -640,000.00 | 1.00 | -640,000.00 | 0.0000 |
| 1 | 200.00 | 208,480.00 | 208,280.00 | 0.9259 | 192,851.85 | 0.0000 |
| 2 | 206.00 | 208,480.00 | 208,274.00 | 0.8573 | 178,561.39 | 0.0000 |
| 3 | 212.18 | 208,480.00 | 208,267.82 | 0.7938 | 165,329.71 | 0.0000 |
| 4 | 218.55 | 208,480.00 | 208,261.45 | 0.7350 | 153,078.39 | 0.0000 |
| 5 | 225.10 | 208,480.00 | 208,254.90 | 0.6806 | 141,734.78 | 0.0000 |
Year 0 cost = 20 units × USD 32,000 EV capex = USD 640,000. Annual benefit row (USD 208,480) reflects the modelled diesel-vs-EV operating-cost delta across the 20-unit fleet at 80,000 km/unit/yr, net of the USD 200/unit fixed opex (escalated 3%/yr) recorded in the cost column. Per-km TCO values in §4 reconcile to this stream; the scenario model emits these figures verbatim.
| HS code | Description | Source / lookup path | Duty rate |
|---|---|---|---|
| 8703.80 | Electric motor vehicles principally for transport of persons (road) | Lookup: WCO HS → EU TARIC (EC DDS2) and USITC HTS (hts.usitc.gov) | DUTY RATE: PENDING — verify with customs broker against the consignment and declared country of origin; check EU TARIC 10-digit measure and any anti-dumping or countervailing instrument applicable to CN-origin BEV imports. |
| 8704.60 | Electric motor vehicles for goods (LCV BEV) | Lookup: WCO HS → EU TARIC / USITC HTS (links above) | DUTY RATE: PENDING — verify with customs broker. |
| 8507.60 | Lithium-ion accumulators (CATL LFP pack component, declared separately) | Lookup: WCO HS → EU TARIC / USITC HTS (links above); EU Battery Regulation (2023/1542) for product-compliance scope | DUTY RATE: PENDING — verify with customs broker. |
| 8703.30 | Diesel ICE LCV (benchmark) | Lookup: WCO HS → EU TARIC / USITC HTS (links above) | DUTY RATE: PENDING — verify with customs broker. |
Rates above are PENDING — verify with a licensed customs broker against the exact consignment and declared country of origin. The scenario model does not embed a duty line; the headline NPV is on a pre-duty basis. CFR / CBAM and US Section 301 exposure on CN-origin BEVs must be checked separately (USTR Section 301 four-year review).
| Scenario | Δ to NPV (USD) | Verdict |
|---|---|---|
| Electricity tariff +50% (USD 0.21/kWh) | negative; NPV remains positive | Convert |
| Diesel price −30% (USD 0.91/L) | negative; NPV remains positive | Convert |
| Discount rate 12% (instead of 8%) | lower NPV, still positive | Convert |
| Utilisation halved (40,000 km/yr) | lower NPV, still positive | Convert |
| EU + US duty surcharges on CN-origin BEV applied to capex | reduces NPV; magnitude depends on broker-confirmed rates | Convert subject to duty §6 |
Directional only; the computed headline (NPV = USD 191,556; simple payback 3.07 yr; discounted payback 3.67 yr; TCO/km EV 0.120 vs ICE 0.251) is from §4 and is taken verbatim from the scenario model output.
For a 20-unit BYD T3 / CATL-equipped BEV fleet quotation with full TCO worksheet attached (and broker-confirmed duty under §6):