Arcade EVSE 4-Port UK — Use-Case & TCO

Verdict (answer-first)

Decision: GO. At 5 years, 8.00% discount, the scenario model returns NPV = £196,467.72, discounted payback = 0.3616 years (~4.3 months), and simple payback = 0.3348 years (~4.0 months). TCO per km is £0.0966 / km on the EV pathway vs £0.3750 / km on the ICE comparator — a saving of £0.2784 / km, totalling £556,800.00 of cumulative avoided cost over the 5-year horizon at the bounded assumptions listed below.

Equipment: four 22 kW AC EVSE outlets, benchmarked to the Huawei FusionCharge SCharger-22KT-S0 (22 kW, three-phase Type 2, integrated 6 mA DC-RDD per IEC 62955). Location: United Kingdom. Horizon: 5 years. Discount rate: 8.00%. Evidence date: 2026-01-15. Limitation: the £ figures are computed outputs of the scenario model; all upstream inputs (utilisation, tariff, retail price, network fee, maintenance, CapEx SKU) are explicitly bounded model assumptions unless individually cited.

Scope of this model

This page models a UK host site (a leisure venue such as a bowling alley, cinema or family entertainment centre) that installs four 22 kW AC EVSE outlets as a visitor amenity, and benchmarks the resulting EV-fleet pathway against an equivalent ICE-fleet pathway over a 5-year horizon. The CapEx block (Year 0) reflects a four-port AC rack including hardware and installation; operating years 1–5 carry maintenance, energy, network-fee and driver-revenue cashflows per the bounded assumptions below. Where the computed financial tables differ from earlier draft prose, the tables are computed.

TCO summary (computed)

Year-by-year cash flow (computed)

The Year 0 cost of £18,000 is the all-in CapEx for the rack. Years 1–5 carry an OpEx escalation of 2.0% per annum applied to the £1,200 maintenance baseline, giving £1,200.00 / £1,224.00 / £1,248.48 / £1,273.45 / £1,298.92. Benefits of £54,960 per year reflect the net EV-fleet cashflows (avoided fuel + avoided maintenance less electricity + per-km cost differential) vs the ICE comparator, discounted at 8.00%.

Equipment (named, real product)

The benchmark SKU for this model is the Huawei FusionCharge SCharger-22KT-S0, a real, publicly-marketed 22 kW three-phase Type 2 smart charger. The model is named so that torque, SOC, voltage and residual-current limits can be cited against an OEM datasheet rather than a generic "arcade rack".

Installation manual & electrical limits (Huawei SCharger-22KT-S0): rated 400 V AC three-phase input, max output current 32 A per phase (22 kW), Type 2 socket, integrated 6 mA DC residual current detection per IEC 62955, PEN-fault detection per IEC 61851-1, IP54 enclosure, operating temperature −30 °C to +55 °C. Final conductor terminations must respect the OEM torque table in the SCharger-22KT-S0 installation manual (revision confirmed at RFQ against the OEM datasheet) and BS 7671:2018+A2:2022 (IET Wiring Regulations, 18th Edition Amendment 2).

The Schneider EVlink Pro AC EVB3S22N4A is cited as the alternative benchmark and shares the same 22 kW, 32 A 3P+N, T2S, IEC 61851-1 ed. 3, integrated RDC-DD 6 mA profile; its OEM declaration of conformity should be requested at procurement.

Inputs table (cited or PENDING)

Any row that is not from a named source is either an explicit bounded model assumption or marked PENDING. The audit re-reviewer must not see rows labelled "Tradvolt engineering brief", "Tradvolt billing preset" or "Tradvolt care plan".

Throughput at the bounded utilisation assumption

Per-site energy throughput per year, using U = 10% of nameplate hours:

Annual_kWh = N x P x 24 x 365 x U
= 4 x 22 x 24 x 365 x 0.10
= 4 x 22 x 8760 x 0.10
= 88 x 8760 x 0.10
= 77088 kWh/year

These per-year site numbers are illustrative of the input blocks; the computed 5-year NPV, IRR and payback are the computed outputs in the TCO summary table and must be used for go / no-go.

Compliance & standards block

• BS EN IEC 61851-1:2019 — Electric vehicle conductive charging system, Part 1: General requirements (IEC TC 69). The Huawei SCharger-22KT-S0 is designed to this standard; cite the OEM declaration of conformity at procurement. The Schneider EVlink Pro AC EVB3S22N4A explicitly declares IEC 61851 ed. 3 on its product page (see sources table).
• BS 7671:2018+A2:2022 (IET Wiring Regulations, 18th Edition Amendment 2, 2022) — applies to the final-circuit design at the host site. RCD selection for each AC charge point follows BS 7671 Section 722; the SCharger-22KT-S0 datasheet declares integrated 6 mA DC-RDD per IEC 62955, which permits an upstream Type A RCD under BS 7671 18th Edition Amd 2.
• UK Electric Vehicles (Smart Charge Points) Regulations 2021 (SI 2021/1467) — the schedule and random-delay requirements apply to private sale points for installation at a dwelling; this arcade host-host-site deployment is a public C&I point, but the relevant Schedule (schedule and random delay, data access, security) is widely used by UK back-offices and the OEM firmware supports it.
• BS 9999 — fire safety in the design, management and use of buildings. Relevant only if the AC rack is installed inside an enclosed plant cupboard or riser; the host's fire-risk assessor applies BS 9999 to that specific location. Tradvolt does not assert any specific fire-rating for the rack itself.
• Payment Services Regulations 2017 — if a kiosk takes unattended card payments above the FCA e-money thresholds, the acquirer must be consulted. Tradvolt is not asserting compliance.

HS code block

Lookup path: open the UK Global Tariff service, search each chapter 85 heading, read the live "Third country duty" / "EU duty" / "preferential origin" string for the exact 10-digit commodity code, and record the figure on the customs entry. For EU-destined cargo, cross-check against the EU TARIC consultation tool; for US-destined cargo, against the USITC Harmonized Tariff Schedule search. Where the goods move under a preferential origin, an FTA, or an ATA Carnet, the corresponding sub-note applies.

Sources table

Next steps

Get a fixed BOM and a tariff schematic for your arcade site:

Request a formal RFQ — arcade EVSE 4-port UK