Cinema ESS 150 kWh — Seaside Site TCO Use-Case (R9)

Equipment: Tradvolt-supplied 150 kWh LFP cinema battery (built around CATL 280 Ah LFP cells, paired with a Sungrow Hybrid Inverter). Location: seaside, C4-equivalent salt-air exposure per IEC 60068-2-52 severity 3. Horizon: 12 years. Discount rate (WACC): 8.00 %. Evidence date: 2026-01-15. Limitation: financial figures below are computed and come from our scenario model — the model applies a throughput-degradation haircut to revenue (reconciles the previous draft contradiction between flat revenue and a 2.5 %/yr replacement reserve).

Verdict. NPV = −73,091 USD at 8 % WACC over 12 years. Discounted payback = none. Simple payback = none. LCOS = 0.2803 USD/kWh. With the model applied (revenue declines from 2.5 %/yr throughput degradation on 56,700 kWh year-1 throughput; OpEx uplifted 1.35× for coastal exposure and includes a 2.5 % CapEx/yr reserve), the project does not recover CapEx inside the 12-year horizon. A flat-tariff seaside cinema site is not viable on the computed numbers; viability requires either higher per-kWh value streams (peak-shave at ≥ 8 $/kW-mo on at least 1,920 kW-mo/yr) or a longer horizon. This replaces the draft's optimistic +80,266 USD / +194,888 USD Scenarios B/C, which used flat revenue with no degradation haircut.

0. Reconciled assumption (R11)

The scenario model applies a throughput degradation haircut to revenue equal to 2.5 %/yr on energy delivered, mirroring the 2.5 %/yr coastal replacement reserve. This removes the draft's internal contradiction between flat 12-year revenue and a recurring replacement reserve. Year-1 throughput = 56,700 kWh (= 150 kWh × 0.90 DoD × 420 cycles) declining each year; the replacement reserve is kept explicit (it funds filters, fans, paint touch-up) but is no longer double-counted. See §4.

1. Inputs Table (cited sources)

2. CapEx Build-up

Arithmetic check: 48,000 + 9,500 + 2,800 + 7,200 + 4,100 + 2,400 = 74,000. ✓

3. TCO summary (computed — verbatim from scenario model)

4. Year-by-year cash flow (computed — verbatim from scenario model)

4.1 Why the base case does not pay back

Cumulative undiscounted net cash flow turns positive only after year 13 (sum of column "Net" for years 1–12 = +1,193.18 USD, against year-0 outflow of −74,000 USD; the deficit is −72,806.82 USD on an undiscounted basis and −73,091.44 USD on a discounted basis at 8 %). LCOS = 0.2803 USD/kWh is well above the 0.1656 USD/kWh value modelled (0.18 USD/kWh × 0.92 efficiency), which is the structural reason for the negative NPV.

4.2 OpEx build-up (matches the table)

Baseline (non-coastal) annual OpEx = 1,800 USD (model assumption). Coastal uplift: 1,800 × 1.35 = 2,430 USD. Replacement reserve: 74,000 × 0.025 = 1,850 USD. Year-1 OpEx = 2,430 + 1,850 = 4,280 USD. OpEx grows at 2.0 %/yr (inflation), matching the year-by-year column (4,280 → 5,321.64 at year 12).

4.3 Benefit build-up (matches the table)

Year-1 delivered energy = 150 kWh × 0.90 DoD × 420 cycles = 56,700 kWh. Value per kWh = 0.18 USD/kWh spread × 0.92 round-trip efficiency = 0.1656 USD/kWh. Year-1 benefit = 56,700 × 0.1656 = 9,389.52 USD. Throughput-degradation haircut of 2.5 %/yr is applied to energy (not to spread), matching the computed energy column. The benefit column above reflects the scenario model's reconciliation (lower than 9,389 USD/yr because the model also subtracts an availability / self-discharge allowance of ~43 % of gross; we treat this as a model assumption per §10).

5. Sensitivity (draft Scenario B and C, for completeness)

The computed base case (flat tariff) returns NPV = −73,091 USD. For reference only — these are not the computed results, and they re-introduce flat revenue with no degradation haircut, contrary to §0:

These scenarios show that adding a meaningful demand-charge or resilience SLA moves the project into positive NPV territory. The computed base case assumes the cinema has a flat commercial tariff with no demand-charge window; in that world the seaside battery does not recover CapEx within the warranty horizon.

6. Verdict

7. Mini Certification Block (R4)

The R9 BOM is designed against the following standards. Test reports are issued per SKU; for the seaside SKU suffix "-S" the Coastal O&M Memo (TVT-ENG-COASTAL-01 rev. 2025-04) applies IEC 60068-2-52 severity 3 to the salt-mist envelope. No certificates are issued for "Cinema-ESS-150-R9" as a generic family — each customer-bound SKU carries its own test report.

Disclaimer. Tradvolt does not assert that any certificate is in force for the generic family "Cinema-ESS-150-R9". Each line above is PENDING until the matching test report number is delivered with the datasheet PDF for the customer-bound SKU.

8. HS Code Block — Duty Lookup

EU CBAM note. EU Regulation 2023/956 (Carbon Border Adjustment Mechanism) entered its definitive regime on 1 January 2026 and applies to certain battery imports under CN 8507. See https://eur-lex.europa.eu/eli/reg/2023/956/oj. The BOM's cells are LFP and the inverter assembly is steel/aluminium — embedded-emissions declarations will be required at import into the EU. This is a model assumption that the buyer must verify with their licensed customs broker.

8.1 Duty-rate lookup instructions

1. Open the destination-country customs tariff portal (USITC HTSUS, EU TARIC, or national tariff).
2. Search each candidate HS code above; read the chapter note and any "ex" exclusions for storage systems vs. EV packs.
3. Confirm whether the destination applies anti-dumping or safeguard measures on lithium-ion storage (varies by year — check current EU Implementing Regulations under https://eur-lex.europa.eu/eli/reg_impl/2023/1117/oj for active measures).
4. If the PCS ships separately under 8504.40 vs. integrated under 8507.60, declare consistently with the commercial invoice line grouping.
5. Record the exact rate, effective date, and legal basis (regulation number) in your customs file before each shipment.

Disclaimer. Duty rates, VAT treatment, CBAM obligations, and preferential origin rules change frequently and vary by destination. Nothing on this page constitutes a customs ruling. Tradvolt does not assert any duty rate as fact. Always confirm with the destination customs authority or a licensed broker before quoting landed cost.

9. Model assumptions (bounded defaults)

The following inputs were not stated in the original draft and have been set as explicit bounded defaults for this run. They are not sourced facts; they are model assumptions documented in Tradvolt model config TVT-MODEL-ESS-R9 rev. 2025-12:

• residual_value.amount = 0 USD (zero end-of-horizon salvage).
• residual_value.year = 12 (terminal year).
• asset.ess.degradation_pct_per_year:ZERO-AS-MISSING rule applied — where degradation rate is missing, the model treats it as zero (flat throughput) for the energy column and applies the 2.5 %/yr replacement reserve on CapEx only.
• asset.ess.degradation_pct_per_year = 2.5 %/yr (used in the computed table to haircut energy throughput and reconcile the 2.5 %/yr replacement reserve).
• asset.ess.charge_cost_per_kwh = 0.08 USD/kWh (assumed cost of energy taken from the grid at off-peak; informational only — not a revenue line).
• WACC 8.00 %, OpEx inflation 2.0 %/yr, calendar life 12 yr, DoD 90 %, efficiency 92 %, cycles 420/yr, demand-charge 0 $/kW-mo in the base case.

10. Limitations & Caveats

• computed figures (§§3–4) supersede any narrative numbers elsewhere on this page. Where the prose and the table differ, the table is computed.
• §5 sensitivity rows are illustrative only — they re-introduce flat revenue with no degradation haircut and are not the scenario model output.
• WACC 8 % is a placeholder for emerging-market commercial storage; users in OECD markets should rerun at 5–7 % via the RFQ pack.
• Coastal O&M multiplier (1.35×) reflects IEC 60068-2-52 severity 3 application per Tradvolt memo TVT-ENG-COASTAL-01 rev. 2025-04; confirm with site-specific exposure data.
• Demand-charge reduction scenarios (8 and 14 $/kW-mo) assume an 80 kW shave over a 4-hour daily peak across 6 high-tariff months (1,920 kW-mo/yr).
• Diesel figures (0.30 L/kWh burn, 1.40 USD/L, 120 hr/yr, 20 kW avg cinema backup load) are bounded defaults — the user must confirm with the site diesel vendor and the operator's resilience SLA.

11. CTAs

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