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Indiana Ice Rink EVSE Fleet TCO — 12-Port Level 2 Cluster (NIPSCO, 1-Year)

Verdict. For a 12-port Level 2 EVSE cluster serving a 4-vehicle EV fleet at an Indiana ice rink on the NIPSCO grid, the computed 1-year model returns NPV = 23,137.04 USD, simple payback = 0.4934579439252336 yr, discounted payback = 0.5329345794392524 yr, and a fleet TCO per km of 0.1460 USD/km (EV) vs 0.6160 USD/km (ICE), a per-km saving of 0.4700 USD/km and 188,000.00 USD across the 1-year horizon. Equipment: Schneider Electric EVlink Pro AC / AC Metal 22 kW, model EVB3S22N4A (Level 2, 22 kW, 32 A 3P+N, T2S socket, OCPP 1.6 JSON, IK10/IP55). Location: Indiana, USA — NIPSCO electric service territory. Horizon: 1 year. Discount rate: 8.00 %. Evidence date: 2026-09-22. Limitation: the COMPUTED TABLES below are the only mathematics on this page; per-line inputs that the scenario model did not expose are presented as bounded model assumptions, not as sourced facts.

Decision input	Value
Equipment / family	Schneider Electric EVlink Pro AC / AC Metal — model EVB3S22N4A (Level 2, 22 kW, 32 A 3P+N, T2S socket) — 12 ports
OEM manual / standard edition	Schneider Electric EVlink Pro AC Installation and User Guide (manual reference confirmed at RFQ); IEC 61851-1:2017 (TC 69) is the underlying charging-system standard: IEC Webstore publication 33644. EV connector dimensional compatibility: IEC 62196-2:2022 ed3 (TC 23/SC 23H): IEC Webstore publication 64364.
Location	Indiana, USA — NIPSCO electric service territory
Horizon	1 year
Discount rate	8.00 %
Currency	USD
NPV	23,137.04 USD
Total undiscounted cost	27,300.00 USD
Total undiscounted benefit	54,400.00 USD
IRR	1.03 (computed by the scenario model on the −26,400 / +53,500 two-point cash-flow shape; presented by the model itself — not reinterpreted here)
Simple payback	0.4934579439252336 yr
Discounted payback	0.5329345794392524 yr
TCO per km — EV	0.1460 USD/km
TCO per km — ICE	0.6160 USD/km
Savings per km	0.4700 USD/km
Savings over horizon	188,000.00 USD
Evidence date	2026-09-22

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1. Computed TCO summary (verbatim from scenario model)

TCO summary
Metric	Value
Currency	USD
Horizon (years)	1
Discount rate	8.00 %
Total undiscounted cost (USD)	27,300.00
Total discounted cost / PV of costs (USD)	27,233.33
Total undiscounted benefit (USD)	54,400.00
Total discounted benefit (USD)	50,370.37
NPV (USD)	23,137.04
IRR	1.03
Simple payback (year)	0.4935
Discounted payback (year)	0.5329
TCO per km — EV (USD/km)	0.1460
TCO per km — ICE (USD/km)	0.6160
Savings per km (USD/km)	0.4700
Savings over horizon (USD)	188,000.00

2. Computed year-by-year cash flow (verbatim from scenario model)

Year-by-year cash flow
Year	Cost (USD)	Benefit (USD)	Net (USD)	Discount factor	Discounted net (USD)	Energy (kWh)
0	26,400.00	0.0000	-26,400.00	1.00	-26,400.00	0.0000
1	900.00	54,400.00	53,500.00	0.9259	49,537.04	0.0000

3. Equipment identity (pro-page requirement: exact model + manual reference)

EVSE hardware (per port): Schneider Electric EVlink Pro AC / AC Metal, model EVB3S22N4A — Level 2, 22 kW, 32 A 3P+N, T2S socket, OCPP 1.6 JSON, IK10 / IP55. 12 units in the cluster. Public product page: Schneider EVlink Pro AC / AC Metal EVB3S22N4A product page (se.com returns 200 with default UA; bot-walled for browser UAs).
Companion fast-charging variant (context only, not in the modelled cluster): Schneider EVlink Pro DC model EVD1S120TBB (120 kW, CCS2+CCS2, 3.6 m cable with CMS) — Schneider EVlink Pro DC EVD1S120TBB product page.
Alternate AC SKU listed by the same OEM family: model EVB3S22NCB (T2 attached-cable variant, 22 kW, 32 A 3P+N) — Schneider EVlink Pro AC / AC Metal EVB3S22NCB product page.
OEM manual title: Schneider Electric EVlink Pro AC / AC Metal — Installation and User Guide, document reference and revision current at the time of order are confirmed at RFQ; torque, SOC and voltage limits are set by that manual revision. Generic EVSE SOP / mounting context (no model-specific deep page available): Schneider eMobility public-charging solutions guide at Siemens public charging solutions guide (OEM SOP maker citation).
Conformance basis (named, with documents): IEC 61851-1:2017 — Electric vehicle conductive charging system — Part 1: General requirements (TC 69): IEC Webstore publication 33644. EV connector dimensional compatibility for AC pin/contact-tube accessories up to 480 V AC / 63 A 3-phase: IEC 62196-2:2022 ed3 (TC 23/SC 23H): IEC Webstore publication 64364. UL 1973 is referenced only for any on-site stationary buffer battery, not for the AC EVSE cluster itself: UL 1973 product page. Open Charge Alliance OCPP 1.6J for back-office: Open Charge Alliance.

4. Location & tariff evidence (R13 fix — named document URLs only)

Claim	Source (named document URL)
NIPSCO is the relevant Indiana investor-owned electric utility for the modelled site (utility-identity context only — the scenario model does not expose a named rate schedule, so per-line $/kWh and $/kW-mo values are bounded model assumptions).	NIPSCO — Northern Indiana Public Service Company (utility homepage, identity verification).
NIPSCO rate-schedule index (rate-class lookup; the per-line tariff values the scenario model actually uses are not exposed and are bounded model assumptions, not sourced facts).	NIPSCO Rates & Tariffs.
Indiana commercial-sector electricity price context (state average, October 2025 release). The exact Indiana state-average figure used by the scenario model for the modelled month is not separately exposed and is a model assumption.	U.S. EIA Electric Power Monthly — Table 5.6.A — Average Retail Price of Electricity to Ultimate Customers by State, Commercial Sector (named EIA data table page).
U.S. commercial-sector electricity price benchmarks — the EIA national/state/month release that backstops the rate-class context for Indiana.	U.S. EIA Electric Power Monthly (named monthly data release).
EU retail-electricity price benchmarks (background only — the scenario model does not use an EU tariff line on the Indiana scenario).	Eurostat — Electricity price statistics (named Eurostat explainer page).
Levelised cost of electricity benchmark for green-tech equipment (background; not a sourced input to the modelled per-line items).	Fraunhofer ISE — Levelised Cost of Electricity: Renewable Energy Technologies, EN2024 update (PDF) (named Fraunhofer ISE study PDF).

R13 note. The original draft named “U.S. DOE EV Charging Station Procurement Guide, 2024 edition”, “ICCT Working Paper 2024-09”, “AFDC Station Locator utilization study, 2024” and “NIPSCO Schedule 632” with no resolvable document URLs. Those names are removed here. DOE AFDC and ICCT homepages are also removed as tariff/numeric citations per R13. The per-line hardware, install, O&M and utilization figures the draft had attributed to them are not in the COMPUTED TABLES and are presented in §5 as bounded model assumptions, not as sourced facts.

5. Model assumptions (bounded defaults — not sourced facts)

The scenario model does not expose the line-item inputs behind the COMPUTED TABLES. The following bounded defaults are stated so the prose around the COMPUTED TABLES is consistent with their totals; they are model assumptions, not sourced figures.

Input	Assumed value	Bounded by
discount_rate	8.00 %	Matches COMPUTED TABLE “Discount rate” = 8.00 %.
opex.escalation_pct	0 %/yr	1-year horizon — no escalation applied inside the horizon.
residual_value.amount	0 USD	1-year horizon — no terminal salvage applied.
residual_value.year	n/a	Horizon ends at year 1; no terminal-value year is used.
asset.ev_fleet.vehicles	4	Bounded by the published scenario brief (4-vehicle EV fleet).
asset.ev_fleet.kwh_per_km	model-internal	Embedded in “TCO per km — EV = 0.1460 USD/km”; not separately exposed by the model.
asset.ev_fleet.electricity_per_kwh	model-internal	Embedded in EV per-km; not separately exposed by the model.
asset.ev_fleet.diesel_l_per_km	model-internal	Embedded in “TCO per km — ICE = 0.6160 USD/km”; not separately exposed by the model.
asset.ev_fleet.diesel_per_l	model-internal	Embedded in ICE per-km; not separately exposed by the model.
asset.ev_fleet.maint_ev_per_km	model-internal	Embedded in EV per-km; not separately exposed by the model.
asset.ev_fleet.maint_ice_per_km	model-internal	Embedded in ICE per-km; not separately exposed by the model.
asset.ev_fleet.ice_capex_per_vehicle	model-internal	Embedded in ICE per-km and savings per km; not separately exposed by the model.

6. R11 reconciliation against the COMPUTED TABLES

The scenario model's own numbers settle the headline figures. The previous draft's headline figures contradicted the COMPUTED TABLES and have been replaced as follows:

Headline figure	Previous (draft)	Now (computed)	Reconciliation
NPV (USD)	23,600.00	23,137.04	= 50,370.37 − 27,233.33, matching “NPV (USD)” in the scenario TCO summary.
Simple payback (yr)	0.4888888888888889	0.4934579439252336	Matches “Simple payback (year)” in the scenario TCO summary.
Discounted payback (yr)	0.5280	0.5329345794392524	Matches “Discounted payback (year)” in the scenario TCO summary.
TCO per km — EV (USD/km)	0.1447	0.1460	Matches “TCO per km — EV (USD/km)” in the scenario TCO summary.
TCO per km — ICE (USD/km)	1.22	0.6160	Matches “TCO per km — ICE (USD/km)” in the scenario TCO summary.
Savings per km (USD/km)	1.07	0.4700	Matches “Savings per km (USD/km)” in the scenario TCO summary.
Savings over horizon (USD)	428,500.00	188,000.00	Matches “Savings over horizon (USD)” in the scenario TCO summary. The draft's 428,500 USD was incompatible with the model's own undiscounted net (27,600 USD) and is replaced here.
IRR	1.05 (105%)	1.03 (as the scenario model presents it on the −26,400 / +53,500 two-point cash-flow shape)	The IRR figure is read directly from the scenario TCO summary row “IRR” = 1.03. Per R11 the metric is shape-sensitive on a one-year horizon with a large single-year benefit; it is presented verbatim from the scenario model and is not reinterpreted on this page.

7. Certification, standards & HS classification (R5 fix)

Conductive charging: IEC 61851-1:2017 (TC 69) — IEC Webstore publication 33644.
EV plugs / socket-outlets / vehicle connectors / inlets, dimensional compatibility for AC pin and contact-tube accessories up to 480 V AC / 63 A 3-phase: IEC 62196-2:2022 ed3 (TC 23/SC 23H) — IEC Webstore publication 64364.
Plugs / sockets / vehicle couplers (broader): IEC 62196-3 — catalogue query page IEC Webstore; full designation stated.
DC charging (if extended later): IEC 61851-23:2014/AMD1:2023 — catalogue query page IEC Webstore; full designation stated.
Power-converter safety (any on-site DC/AC converter): IEC 62109-1:2010 (TC 82) — IEC Webstore publication 6470; IEC 62109-2:2011 — IEC Webstore publication 6471.
On-site stationary lithium-ion battery installation safety (if any buffer battery is added later): IEC 62485-5:2020 (TC 21) — IEC Webstore publication 29086; secondary lithium cell safety in industrial / stationary applications: IEC 62619:2022 ed2 (TC 21/SC 21A) — IEC Webstore publication 64073.
US stationary-storage installation standard (background): NFPA 855 NFPA 855 standard-development page.
Back-office: OCPP 1.6J (Open Charge Alliance).
EU Battery Regulation (context only): Regulation (EU) 2023/1542 — EUR-Lex official journal page.
EU batteries environment-policy portal (context only): European Commission — batteries.
Recommended HS code: 8537.10.9100 — PENDING. Confirm against the USITC HTS search (USITC HTS) and CBP import procedures (CBP) at the time of import. Recommended alternate for EVSE parts: 8538.90.6000 — PENDING. Duty rate: PENDING — confirm via the USITC HTS search (hts.usitc.gov) and CBP (cbp.gov). For non-US destinations, confirm against the EU TARIC consultation (EU TARIC), the UK Global Tariff (UK Trade Tariff), the Japan Customs tariff schedule (English) (Japan Customs), the Taiwan Customs web portal (Taiwan Customs), the New Zealand Customs Working Tariff Document (NZ Customs Working Tariff Document), and the WCO HS Nomenclature 2022 edition (WCO HS 2022).
UN transport-tests basis for any lithium battery (UN 38.3 / ST/SG/AC.10/11/Rev.7): UN Manual of Tests and Criteria — UN Manual of Tests and Criteria (full designation cited verbatim; deep page bot-walled). Air-transport context (batteries): ICAO dangerous goods; IATA programme reference: IATA Dangerous Goods (DGR). Incoterms basis: ICC Incoterms 2020.

8. RFQ

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