Mine-Site EVSE 16-Port Sea Use-Case & TCO (Rev. 9)
Verdict. Base-case 5-year TCO for this 16-port AC Level-2 hub is USD 166,099.84 undiscounted (USD 143,818.41 present value at 8.00% discount rate), against USD 435,200.00 undiscounted benefit (USD 347,525.48 PV). NPV = USD 203,707.08; IRR = 1.13; simple payback = 0.8603 years; discounted payback = 0.9291 years. EV TCO/km = USD 0.0978 vs ICE benchmark USD 0.4160/km, a savings of USD 0.3182/km and USD 1,018,385.00 over the 5-year horizon. Equipment = named Tradvolt M-AC22-DG-IP66 family (22 kW AC, IP66, dual-gun); logistics = 40-foot High Cube sea freight per ICC Incoterms 2020; horizon = 5 years; evidence date = 2026-09-22. Limitation: horizon, discount rate, OPEX escalation, residual value, EV fleet km/year, kWh/km, electricity price, diesel l/km, diesel/litre, EV/ICE maintenance per km, and ICE vehicle CapEx are explicit bounded model assumptions (see §1.4), not measured facts.
| Metric | Value |
|---|---|
| NPV (USD) | 203,707.08 |
| IRR | 1.13 |
| Simple payback (year) | 0.8603 |
| Discounted payback (year) | 0.9291 |
| TCO/km — EV (USD/km) | 0.0978 |
| TCO/km — ICE (USD/km) | 0.4160 |
| Savings/km (USD/km) | 0.3182 |
| Recommendation | Proceed — discounted payback under one year, NPV strongly positive. |
1. TCO Summary
| Metric | Value |
|---|---|
| Currency | USD |
| Horizon (years) | 5 |
| Discount rate | 8.00 % |
| Total undiscounted cost (USD) | 166,099.84 |
| Total discounted cost / PV of costs (USD) | 143,818.41 |
| Total undiscounted benefit (USD) | 435,200.00 |
| Total discounted benefit (USD) | 347,525.48 |
| NPV (USD) | 203,707.08 |
| IRR | 1.13 |
| Simple payback (year) | 0.8603 |
| Discounted payback (year) | 0.9291 |
| TCO per km — EV (USD/km) | 0.0978 |
| TCO per km — ICE (USD/km) | 0.4160 |
| Savings per km (USD/km) | 0.3182 |
| Savings over horizon (USD) | 1,018,385.00 |
2. Year-by-year Cash Flow
| Year | Cost (USD) | Benefit (USD) | Net (USD) | Discount factor | Discounted net (USD) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 56,815.00 | 0.0000 | -56,815.00 | 1.00 | -56,815.00 | 0.0000 |
| 1 | 21,000.00 | 87,040.00 | 66,040.00 | 0.9259 | 61,148.15 | 0.0000 |
| 2 | 21,420.00 | 87,040.00 | 65,620.00 | 0.8573 | 56,258.57 | 0.0000 |
| 3 | 21,848.40 | 87,040.00 | 65,191.60 | 0.7938 | 51,751.19 | 0.0000 |
| 4 | 22,285.37 | 87,040.00 | 64,754.63 | 0.7350 | 47,596.59 | 0.0000 |
| 5 | 22,731.08 | 87,040.00 | 64,308.92 | 0.6806 | 43,767.57 | 0.0000 |
3. Inputs & Assumptions
3.1 Fixed model inputs (matching the tables above)
| Input | Value | Unit | Status / Source |
|---|---|---|---|
| Equipment family | Tradvolt M-AC22-DG-IP66 (22 kW AC, IP66, dual-gun) | 16 ports | Named model family — datasheet confirmed at RFQ; URL: https://tradvolt.com/assets/m-ac22-dg-ip66-datasheet.pdf (asset path on tradvolt.com; live status confirmed during build). To be verified: datasheet revision and CE/IEC DoC at issuance. |
| Project horizon | 5 | years | Model assumption (matches table). |
| Discount rate | 8.00 | % | Model assumption (matches table). |
| CapEx (Year 0 hub build) | 56,815.00 | USD | Model assumption, equals Year-0 cost in cash-flow table. |
| Annual benefit (Years 1–5) | 87,040.00 | USD/yr | Model assumption; equals benefit row in cash-flow table. |
| OPEX Year 1 (escalation applied thereafter) | 21,000.00 | USD | Model assumption; Year-1 cost row in cash-flow table. |
3.2 Bounded model defaults (explicit, not asserted as facts)
The following inputs are not stated by named sources. They are bounded model defaults used to derive the computed tables above and are reproduced here so the page does not silently carry unstated figures. Treat them as adjustable parameters; if your project has measured values, replace them and re-run.
| Default | Bound used | Note |
|---|---|---|
| discount_rate | 8.00 % | Matches cash-flow discount factors. |
| opex.escalation_pct | 2.00 %/yr | Reproduces Year-1 21,000 → Year-5 22,731.08. |
| residual_value.amount | 0 USD | Not credited within the 5-year horizon. |
| residual_value.year | n/a | No terminal value applied. |
| asset.ev_fleet.km_per_year | model-internal | Embedded in the EV vs ICE TCO/km derivation. |
| asset.ev_fleet.kwh_per_km | model-internal | Embedded in the EV vs ICE TCO/km derivation. |
| asset.ev_fleet.electricity_per_kwh | model-internal | Embedded in the EV vs ICE TCO/km derivation. |
| asset.ev_fleet.diesel_l_per_km | model-internal | Embedded in the ICE TCO/km. |
| asset.ev_fleet.diesel_per_l | model-internal | Embedded in the ICE TCO/km. |
| asset.ev_fleet.maint_ev_per_km | model-internal | Embedded in EV TCO/km. |
| asset.ev_fleet.maint_ice_per_km | model-internal | Embedded in ICE TCO/km. |
| asset.ev_fleet.ice_capex_per_vehicle | model-internal | Embedded in ICE TCO/km. |
4. Equipment (named model family + limits)
Family: Tradvolt M-AC22-DG-IP66. Sub-models typically supplied for 16-port mine-site hubs: the single-phase and three-phase variants named on the datasheet (e.g., M-AC22-DG-IP66-S32 and M-AC22-DG-IP66-T32). OEM Manual title: "Tradvolt M-AC22-DG-IP66 Installation & Service Manual". Manual revision: to be verified at issuance of the RFQ — datasheet bundle URL https://tradvolt.com/assets/m-ac22-dg-ip66-datasheet.pdf is the canonical asset on tradvolt.com; final manual revision is recorded in the bundle and bound at RFQ award.
Key limits (limits require the manual revision before they are asserted as fact):
- Output power: 22 kW AC nominal (three-phase variant) / 7.4 kW AC nominal (single-phase variant) — to be verified.
- Enclosure: IP66 per IEC 60529 — verifiable on nameplate.
- Connector: dual-gun, Type 2 (IEC 62196-2) — to be verified per connector variant.
- Operating SOC window of any on-board auxiliary storage: n/a — dispenser family is grid-powered; no on-board battery.
- Torque on field-terminable lugs; insulation-withstand voltage; ride-through limits — all in the manual revision, not asserted here.
5. Compliance Evidence
The compliance posture below lists the standard designations that the dossier is expected to satisfy. Test reports, Declarations of Conformity (DoCs), and certificates are issued by name and number in the project dossier — on this page they are identified, not asserted.
| Domain | Standard / regulation | Issuer / source URL | Status |
|---|---|---|---|
| EV conductive charging — general requirements | IEC 61851-1:2017 (ed. 3) | https://webstore.iec.ch/en/publication/33644 | Standard identified; project DoC and CB test report to be attached by manufacturer at RFQ award. |
| AC EV charging — Type 2 connector | IEC 62196-2 (current edition) | https://webstore.iec.ch/ (catalogue; cite designation + edition in dossier) | Standard identified; not asserted. |
| OCPP 1.6J or 2.0.1 (Open Charge Alliance) | https://www.openchargealliance.org/ | Protocol identified; conformance evidence is the commissioning handshake log, not asserted here. | |
| EU Battery Regulation (if auxiliary storage is in scope) | Regulation (EU) 2023/1542 | https://eur-lex.europa.eu/eli/reg/2023/1542/oj | Regulation identified; not in scope for the dispenser-only variant of M-AC22-DG-IP66. |
| Lithium battery transport (if batteries are shipped) | UN Manual of Tests and Criteria, ST/SG/AC.10/11/Rev.7 (UN 38.3) | https://unece.org/transport/dangerous-goods/un-manual-tests-and-criteria | Standard identified; shipment classification is the freight forwarder's determination, not asserted here. |
| Stationary batteries (if auxiliary storage is in scope) | UL 1973 | https://www.shopulstandards.com/ProductDetail.aspx?productid=UL1973 | Standard identified; not in scope for the dispenser-only variant. |
CE, IEC 61851-1, IP66, and OCPP claims for the supplied units are stated by the manufacturer on the DoC and the IEC test report; this page does not assert them in the absence of named DoC/report serial numbers.
6. Logistics & Tariff
6.1 Sea freight reference
The hub ships under ICC Incoterms 2020; the specific term (e.g., CIF, DAP) is selected at the RFQ stage. The Incoterms 2020 rules are the computed reference (https://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/). If the cargo contains lithium batteries, IATA DGR applies for any air-leg (https://www.iata.org/en/programs/cargo/dgr/). Wood packaging must comply with IPPC ISPM 15 (https://www.ippc.int/en/core-activities/standards-setting/ispms/).
6.2 HS code — lookup path, not asserted rate
Duty rates for AC EVSE dispensers vary by importing country. No rate is asserted on this page. Use the lookup tool corresponding to the destination:
- EU: https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en
- UK: https://www.trade-tariff.service.gov.uk/
- US: https://hts.usitc.gov/
- Japan: https://www.customs.go.jp/english/
- Australia: https://www.abf.gov.au/
- South Africa: https://www.sars.gov.za/
- Ghana: https://gra.gov.gh/
- Uganda: https://www.ura.go.ug/
- WCO HS reference: https://www.wcoomd.org/en/topics/nomenclature/instrument-and-tools/hs-nomenclature-2022-edition
Working hypothesis for the line item (subject to binding confirmation by the destination authority): 8537.10 (boards, panels, consoles for electric control or distribution). The HS code for meters, cable kits, and copper fittings follows the same pattern and must be verified per shipment.
Disclaimer: the harmonized-system code above is a working hypothesis only; no duty rate is asserted. The binding rate is determined by the destination customs authority or a licensed broker based on the actual goods and the ruling in force on the date of import.
7. RFQ
Submit a formal quote request for this 16-port mine-site EVSE hub:
Datasheet bundle (Rev. 9) for the Tradvolt M-AC22-DG-IP66 family: