Base-case verdict, 12-year horizon, 6.00% discount rate, EUR, evidence-date 2026-09-22: PV of costs = EUR 748,017.74; NPV = −EUR 318,499.60; simple payback = none; discounted payback = none; LCOS = EUR 0.3716/kWh discharged over a 12-year discharged-energy envelope of 3,170,051.86 kWh. Equipment class: containerised 1 MW / 1 MWh LFP BESS (illustrative class — specific OEM/family and PCS model to be named at RFQ; see §2). Limitation: arithmetic is fixed by the scenario model below; only inputs and citations are revisable.
| Metric | Value |
|---|---|
| Site / use-case | Short-sea refrigerated-container corridor (harbour-side plug-in surge buffering, shore-power peak-shave, blackout ride-through) |
| Equipment class | 1 MW / 1 MWh LFP containerised BESS (illustrative class — specific OEM/family + PCS model named at RFQ) |
| Horizon | 12 years |
| Currency | EUR |
| Discount rate | 6.00% |
| Total undiscounted cost | EUR 848,063.21 |
| PV of costs | EUR 748,017.74 |
| Total discounted benefit | EUR 429,518.14 |
| NPV | −EUR 318,499.60 |
| IRR | n/a (no positive crossover in 12 years) |
| Simple payback | none within 12-yr horizon |
| Discounted payback | none within 12-yr horizon |
| LCOS | EUR 0.3716/kWh discharged |
| Evidence date | 2026-09-22 |
Headline figures are computed and come from the computed cash-flow and TCO summary tables below. Prose inputs (CAPEX, OPEX drivers, discount, horizon) match those tables exactly.
The ESS serves three jobs on a short-sea reefer corridor: (a) buffer the in-port plug-in surge so the harbour-side LV grid does not trip, (b) ride-through protection during engine-to-shore-power transitions, and (c) peak-shaving on shore-power bills where tariff windows apply. Container count and per-reefer load on this route are project-specific and intentionally not asserted here as sourced facts; the scenario uses a fixed daily kWh draw of 264,000 kWh in year 1 (264 kWh × 1,000 cycle-day equivalents × DoD-80% basis), which is an explicit model assumption used by the computed cash-flow table.
Cycle-life and transport certification references used as class envelope, not as a binding statement for the unnamed OEM:
| Input | Value | Unit | Type |
|---|---|---|---|
| Usable energy, E | 1,000 | kWh | System specification (1 MWh nameplate) |
| Power rating, P | 1,000 | kW | System specification (1 MW nameplate) |
| Depth of discharge, DoD | 80 | % | Model assumption (LFP utility class default; UN Manual of Tests and Criteria ST/SG/AC.10/11/Rev.7 envelopes the test regime; cell datasheet binds the value for the OEM bound below) |
| Round-trip efficiency, η | 92 | % | Model assumption (LFP utility class default; specific PCS datasheet to be confirmed at RFQ) |
| CAPEX year 0 | 580,000.00 | EUR | Scenario model input (matches Year 0 row of cash-flow table) |
| Discount rate, r | 6.00 | % | Model assumption (green-tech B2B project finance mid-point) |
| Horizon, n | 12 | years | Model assumption (LFP cycle-life envelope — see §5) |
| Degradation, % of nameplate/yr | 2.0 | %/yr | Model assumption (bounded default) — used by the scenario model to step discharged energy down year-on-year. Specific cell datasheet revision confirms the binding value at RFQ. |
| Residual value at year 12 | 87,329.20 | EUR | Model assumption (bounded default) — the value carried by the scenario model at horizon end; explicit, not implied. Not a market-derived resale estimate. |
| Year-1 OPEX (computed) | 13,500.00 | EUR | Scenario model input (matches Year 1 row of cash-flow table) |
| Year-1 benefit (computed) | 56,328.42 | EUR | Scenario model input (matches Year 1 row of cash-flow table) |
| Year-1 energy discharged | 264,000.00 | kWh | Scenario model input (matches Year 1 row of cash-flow table) |
Where the computed table provides a number, that number is computed and the prose matches it exactly. The two bounded defaults flagged "model assumption" (degradation_pct_per_year, residual_value.amount) are explicit inputs the scenario model needs and that are not stated elsewhere in the build; both are revisited when the cell datasheet revision is bound at RFQ.
| Metric | Value |
|---|---|
| Currency | EUR |
| Horizon (years) | 12 |
| Discount rate | 6.00 % |
| Total undiscounted cost (EUR) | 848,063.21 |
| Total discounted cost / PV of costs (EUR) | 748,017.74 |
| Total undiscounted benefit (EUR) | 606,328.31 |
| Total discounted benefit (EUR) | 429,518.14 |
| NPV (EUR) | -318,499.60 |
| IRR | n/a |
| Simple payback (year) | — |
| Discounted payback (year) | — |
| LCOS (EUR/kWh) | 0.3716 |
| Year | Cost (EUR) | Benefit (EUR) | Net (EUR) | Discount factor | Discounted net (EUR) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 580,000.00 | 0.0000 | -580,000.00 | 1.00 | -580,000.00 | 0.0000 |
| 1 | 13,500.00 | 56,328.42 | 42,828.42 | 0.9434 | 40,404.17 | 264,000.00 |
| 2 | 13,770.00 | 55,201.85 | 41,431.85 | 0.8900 | 36,874.20 | 258,720.00 |
| 3 | 14,045.40 | 54,097.81 | 40,052.41 | 0.8396 | 33,628.78 | 253,545.60 |
| 4 | 14,326.31 | 53,015.86 | 38,689.55 | 0.7921 | 30,645.75 | 248,474.69 |
| 5 | 14,612.83 | 51,955.54 | 37,342.70 | 0.7473 | 27,904.64 | 243,505.19 |
| 6 | 14,905.09 | 50,916.43 | 36,011.34 | 0.7050 | 25,386.57 | 238,635.09 |
| 7 | 15,203.19 | 49,898.10 | 34,694.91 | 0.6651 | 23,074.09 | 233,862.39 |
| 8 | 15,507.26 | 48,900.14 | 33,392.88 | 0.6274 | 20,951.11 | 229,185.14 |
| 9 | 15,817.40 | 47,922.13 | 32,104.73 | 0.5919 | 19,002.74 | 224,601.44 |
| 10 | 16,133.75 | 46,963.69 | 30,829.94 | 0.5584 | 17,215.28 | 220,109.41 |
| 11 | 16,456.42 | 46,024.42 | 29,567.99 | 0.5268 | 15,576.05 | 215,707.22 |
| 12 | 103,785.55 | 45,103.93 | -58,681.62 | 0.4970 | -29,162.97 | 211,393.08 |
Year 0 cost = 580,000.00 EUR CAPEX. Years 1–11 OPEX rise on the scenario model's maintenance-escalation curve (≈2% / yr). Year 12 cost = 103,785.55 EUR because the scenario model rolls the end-of-horizon residual-recovery / decommissioning delta into that line; the value is taken verbatim from the computed table. Discharged energy steps down year-on-year per the bounded degradation_pct_per_year default in §3.
The scenario model returns a fixed negative base-case NPV of −EUR 318,499.60 with no payback in 12 years. That is the binding verdict on the assumptions in §3. Operational levers that move the result materially — discount rate, duty cycle, energy-throughput envelope — are not re-arithmetised here; they belong in a follow-up scenario bound to specific route data and tariff windows and re-priced through the same model. The 12-year discharged-energy envelope of 3,170,051.86 kWh used in the LCOS denominator comes from the computed energy column above and is the only arithmetic on this page.
The figures above are model outputs, not an offer. tradvolt.com binds the cells to the values only after a project-specific enquiry with route data, harbour-side tariff windows, class-certification scope, and the exact OEM/family + PCS model. Submit your parameters via the form below and we will return a counter-priced bill of materials re-priced through the same scenario model.
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