Verdict (base case, 10-year horizon, 8.00% discount rate, USD): NPV = −55,474 USD. Simple payback = None. Discounted payback = None. LCOS = 0.4730 USD/kWh. Equipment: CATL EnerC-120 LFP cabinet (120 kWh) paired with Sungrow SH5.0RS hybrid PCS (residential-commercial 5 kW class; SKU/rated PCS kW confirmed at RFQ). Location: LATAM capital (country-agnostic; pick your customs jurisdiction in §6). Evidence date: 2026-09-22. Limitation: this is a single use-case run with explicit bounded assumptions on residual value, degradation, charging cost, and value-per-kWh-discharged; treat as one scenario, not a market forecast.
| Field | Value |
|---|---|
| Equipment (exact) | CATL EnerC-120 LFP cabinet + Sungrow SH5.0RS hybrid PCS (5 kW class; SKU rev confirmed at RFQ) |
| Useable energy | 120 kWh |
| Location | LATAM capital (country-agnostic) |
| Horizon | 10 years |
| Currency | USD |
| Discount rate | 8.00 % |
| CAPEX (Year 0) | 84,000 USD |
| NPV (base) | −55,474 USD |
| IRR | −0.1154 |
| Simple payback | None within 10-year horizon |
| Discounted payback | None within 10-year horizon |
| LCOS | 0.4730 USD/kWh |
| Evidence date | 2026-09-22 |
A mid-size LATAM capital consulate compound runs on a mix of unreliable grid and a diesel genset. The use case sizes a 120 kWh LFP ESS to back the secure comms room (Loads A) and consular waiting-area lighting + HVAC (Loads B) for an approximate 4-hour ride-through. Goal: cut genset runtime, raise outage ride-through, and report verifiable 10-year TCO in USD.
Equipment named to OEM SKU so a procurement professional can verify any number:
Cell-level torque limits, SOC window, voltage limits, and DC-side grounding are OEM-defined and supplied in the as-shipped manual. Final limits must be read from the as-shipped CATL EnerC-120 OEM manual and matching Sungrow SH5.0RS datasheet, not inferred from this page.
| Parameter | Symbol | Value | Unit | Source / row |
|---|---|---|---|---|
| Useable energy | E_u | 120 | kWh | CATL EnerC-120 nameplate (OEM datasheet rev confirmed at RFQ) — see §7 |
| Discount rate | r | 8.00 | % / yr | Model assumption (bounded default) |
| Horizon | N | 10 | years | Project case |
| CAPEX (Year 0) | C_0 | 84,000 | USD | Computed in COMPUTED TABLES (§3) |
| Residual value (Year 10) | — | 0 | USD | Model assumption: bounded default (residual_value.amount = 0; residual_value.year = N) |
| Degradation (ESS capacity fade) | — | 2.0 | % / yr | Model assumption: bounded default (asset.ess.degradation_pct_per_year = 2.0) |
| Charge cost per kWh charged | — | 0.10 | USD / kWh | Model assumption: bounded default (asset.ess.charge_cost_per_kwh = 0.10) |
| Value per kWh discharged (avoided cost) | — | 0.30 | USD / kWh | Model assumption: bounded default (asset.ess.value_per_kwh_discharged = 0.30) |
| Round-trip efficiency | η | 92 | % | Model assumption (LFP ESS band; OEM datasheet prevails at RFQ) |
| Depth-of-discharge per cycle | DoD | 80 | % | Model assumption (LFP design DoD; OEM manual prevails at RFQ) |
| Cycles per year | n_y | 330 | cycles / yr | Model assumption (site outage profile, base) |
| Approx. 4-h ride-through | — | ~4 h at 30 kW continuous | h | Site spec: E_u / (DoD × P_avg) ≈ 5 h at 19.2 kW; ~4 h at 24 kW (model assumption) |
| Diesel displaced per year (base) | D_y | — | L / yr | Not used in this run; benefit stream is value-per-kWh-discharged, not fuel arbitrage |
| Diesel price (delivered, site) | p_d | — | USD/L | Not used in this run |
Copy of the COMPUTED TABLES block. These are the only financial figures on this page.
| Metric | Value |
|---|---|
| Currency | USD |
| Horizon (years) | 10 |
| Discount rate | 8.00 % |
| Total undiscounted cost (USD) | 97,796.65 |
| Total discounted cost / PV of costs (USD) | 93,142.76 |
| Total undiscounted benefit (USD) | 55,431.71 |
| Total discounted benefit (USD) | 37,668.40 |
| NPV (USD) | -55,474.37 |
| IRR | -0.1154 |
| Simple payback (year) | — |
| Discounted payback (year) | — |
| LCOS (USD/kWh) | 0.4730 |
| Year | Cost (USD) | Benefit (USD) | Net (USD) | Discount factor | Discounted net (USD) | Energy (kWh) |
|---|---|---|---|---|---|---|
| 0 | 84,000.00 | 0.0000 | -84,000.00 | 1.00 | -84,000.00 | 0.0000 |
| 1 | 1,260.00 | 6,060.52 | 4,800.52 | 0.9259 | 4,444.93 | 31,680.00 |
| 2 | 1,285.20 | 5,939.31 | 4,654.11 | 0.8573 | 3,990.15 | 31,046.40 |
| 3 | 1,310.90 | 5,820.53 | 4,509.62 | 0.7938 | 3,579.88 | 30,425.47 |
| 4 | 1,337.12 | 5,704.11 | 4,366.99 | 0.7350 | 3,209.87 | 29,816.96 |
| 5 | 1,363.86 | 5,590.03 | 4,226.17 | 0.6806 | 2,876.26 | 29,220.62 |
| 6 | 1,391.14 | 5,478.23 | 4,087.09 | 0.6302 | 2,575.56 | 28,636.21 |
| 7 | 1,418.96 | 5,368.67 | 3,949.70 | 0.5835 | 2,304.61 | 28,063.49 |
| 8 | 1,447.34 | 5,261.29 | 3,813.95 | 0.5403 | 2,060.56 | 27,502.22 |
| 9 | 1,476.29 | 5,156.07 | 3,679.78 | 0.5002 | 1,840.80 | 26,952.17 |
| 10 | 1,505.82 | 5,052.95 | 3,547.13 | 0.4632 | 1,643.01 | 26,413.13 |
Scenarios below hold the bounded defaults from §2 and vary only what is named in the "Lever" column. They are illustrative off-shoots of the base case, not separate computed runs; treat as directional.
| Scenario | Lever vs. base | NPV direction | Verdict |
|---|---|---|---|
| S1 — Base case | 120 kWh CATL EnerC-120 + 5 kW-class Sungrow SH5.0RS, 8% discount, 10 y, defaults as §2 | Negative (NPV = −55,474 USD) | NO-GO at the assumed avoided-cost rate |
| S2 — Higher avoided cost (0.50 USD/kWh) | Raise asset.ess.value_per_kwh_discharged only | Increases benefit stream; directionally positive | Re-spec needed; rerun model before quoting |
| S3 — Lower charge cost (0.05 USD/kWh) | Halve asset.ess.charge_cost_per_kwh | Mild NPV improvement (cost-side) | Marginal; not a standalone case for go |
| S4 — Shorter horizon (5 y) | Reduce N to 5 | Removes 5 years of net positive contribution | Worse NPV; not a go |
| S5 — Resilience-only (no energy throughput) | Set throughput to 0 in benefit stream | NPV collapses to −CAPEX + PV(OPEX) | NO-GO on financial grounds; resilience becomes policy/safety case, not TCO case |
The standards below are the standard family likely applicable to a CATL EnerC-120 LFP cabinet + Sungrow SH5.0RS hybrid PCS shipped to a LATAM embassy site. tradvolt.com does not hold or imply any certificate, file number, or test report for any specific SKU on this page. Final certificate IDs, issuer names, and report numbers must be requested from the OEM at RFQ against the as-shipped serial numbers.
Cert block is advisory only; no certificates held or implied. File numbers, issuer names, and attached PDFs are not provided on this page because tradvolt.com has not been supplied with them for any specific SKU.
Lookup instructions. Pull the live 6-digit subheading and duty rate from the destination country's national tariff before any quotation is issued. Reference tools: EU TARIC consultation, US USITC HTS search, UK UK Global Tariff, Japan Japan Customs, Australia Australian Border Force, South Africa SARS, Ghana GRA, Uganda URA. For HS chapter/note methodology: WCO HS Nomenclature 2022 edition. Customs broker must reconcile the WCO HS explanatory notes against the destination country's national tariff line. ICC Incoterms 2020 govern freight allocation. Lithium cells are dangerous goods under IATA DGR and require UN 38.3 test summary on the shipper's documents. Wood packaging must meet IPPC ISPM 15.
Each row maps a named source used in §2 to its publisher, year, full title, and URL. Only allow-listed publishers are cited (OEM datasheet landing pages, certification bodies, regulators/customs). Where the model needs a number that no allow-listed source provides, the row is labelled "Model assumption: bounded default".
| Used for | Publisher | Year | Full title / designation | URL |
|---|---|---|---|---|
| CATL EnerC-120 LFP cabinet nameplate (120 kWh) and limits (torque, SOC, voltages) — exact datasheet rev confirmed at RFQ | Contemporary Amperex Technology Co., Limited (CATL) | ongoing (as-shipped rev at RFQ) | CATL EnerC-120 LFP cabinet (120 kWh nameplate) | https://www.catl.com/en/ess/ |
| Sungrow SH5.0RS hybrid PCS (5 kW class) limits and firmware rev — exact datasheet rev confirmed at RFQ | Sungrow Power Supply Co., Ltd. | ongoing (as-shipped rev at RFQ) | Sungrow SH5.0RS single-phase hybrid inverter | https://www.sungrowpower.com/en |
| IEC 62619:2022 (standard catalogue) | International Electrotechnical Commission (IEC) | 2022 | IEC 62619:2022 — Secondary cells and batteries containing alkaline or other non-acid electrolytes — Safety requirements for secondary lithium cells and batteries for use in industrial applications | https://webstore.iec.ch/ |
| UL 1973 (standard page) | UL Solutions | current edition | UL 1973 — Batteries for Use in Stationary and Motive Auxiliary Power Applications | https://www.shopulstandards.com/ProductDetail.aspx?productid=UL1973 |
| IEC 62477-1 / IEC 62109-1 (PCS safety, standard catalogue) | International Electrotechnical Commission (IEC) | 2022 / 2010 | IEC 62477-1:2022 / IEC 62109-1:2010 — Power converter safety (hybrid PCS) | https://webstore.iec.ch/ |
| UN 38.3 lithium battery transport provisions | United Nations Economic Commission for Europe (UNECE) | Rev.7 (current edition) | UN Recommendations on the Transport of Dangerous Goods — Manual of Tests and Criteria (ST/SG/AC.10/11/Rev.7), §38.3 | https://unece.org/transport/dangerous-goods/un-manual-tests-and-criteria |
| EU Battery Regulation (compliance posture for LATAM-bound shipment referencing EU markets) | European Union (EUR-Lex) | 2023 | Regulation (EU) 2023/1542 of the European Parliament and of the Council (EU Battery Regulation) | https://eur-lex.europa.eu/eli/reg/2023/1542/oj |
| EU HS / duty lookup tool | European Commission, DG TAXUD | ongoing | TARIC consultation database | https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en |
| US HS / duty lookup tool | United States International Trade Commission | ongoing | Harmonized Tariff Schedule of the United States | https://hts.usitc.gov/ |
| UK HS / duty lookup tool | HM Government (UK) | ongoing | UK Global Tariff | https://www.trade-tariff.service.gov.uk/ |
| Japan HS / duty lookup | Japan Customs | ongoing | Japan Customs Tariff Schedule (English) | https://www.customs.go.jp/english/ |
| Australia HS / duty lookup | Australian Border Force | ongoing | Australian Border Force — customs notices and tariff info | https://www.abf.gov.au/ |
| South Africa HS / duty lookup | South African Revenue Service (SARS) | ongoing | SARS customs and excise | https://www.sars.gov.za/ |
| Ghana HS / duty lookup | Ghana Revenue Authority (GRA) | ongoing | GRA customs | https://gra.gov.gh/ |
| Uganda HS / duty lookup | Uganda Revenue Authority (URA) | ongoing | URA customs | https://www.ura.go.ug/ |
| WCO HS chapter/note methodology | World Customs Organization (WCO) | 2022 edition | WCO HS Nomenclature 2022 edition | https://www.wcoomd.org/en/topics/nomenclature/instrument-and-tools/hs-nomenclature-2022-edition |
| Incoterms 2020 (freight allocation) | International Chamber of Commerce (ICC) | 2020 | Incoterms 2020 — ICC rules for the use of domestic and international trade terms | https://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/ |
| Air freight dangerous goods (DGR) | International Air Transport Association (IATA) | annual edition | IATA Dangerous Goods Regulations (DGR) | https://www.iata.org/en/programs/cargo/dgr/ |
| Wood packaging (ISPM 15) | International Plant Protection Convention (IPPC) | ongoing | International Standards for Phytosanitary Measures No. 15 (ISPM 15) — regulation of wood packaging material in international trade | https://www.ippc.int/en/core-activities/standards-setting/ispms/ |
| Residual value (Year 10) | — | — | Model assumption: bounded default (residual_value.amount = 0 USD; residual_value.year = 10) | — |
| Degradation (capacity fade per year) | — | — | Model assumption: bounded default (asset.ess.degradation_pct_per_year = 2.0 %/yr) | — |
| Charge cost per kWh charged | — | — | Model assumption: bounded default (asset.ess.charge_cost_per_kwh = 0.10 USD/kWh) | — |
| Value per kWh discharged (avoided cost) | — | — | Model assumption: bounded default (asset.ess.value_per_kwh_discharged = 0.30 USD/kWh) | — |
| Discount rate (numeric input) | — | — | Model assumption: bounded default (8.00 %/yr) | — |
| Cycles per year, DoD, η | — | — | Model assumptions: bounded defaults (n_y = 330 cycles/yr; DoD = 80%; η = 92%) | — |
Disclaimer: This page is a single use-case TCO run for a 120 kWh CATL EnerC-120 LFP cabinet + Sungrow SH5.0RS hybrid PCS sized for a mid-size LATAM capital embassy/consulate compound. All financial figures in §3 and §4 come from the COMPUTED TABLES (computed). The NPV of −55,474.37 USD reconciles exactly to the sum of discounted nets in the §4 cash-flow table (−84,000.00 + 4,444.93 + 3,990.15 + 3,579.88 + 3,209.87 + 2,876.26 + 2,575.56 + 2,304.61 + 2,060.56 + 1,840.80 + 1,643.01). No third-party reviews, rankings, "No.1" badges, or partner logos are referenced or implied on this page. The cert block is advisory only; tradvolt.com holds no certificates and implies none for any specific SKU — final file numbers, issuer names, and test reports must be requested from the OEM at RFQ against the as-shipped serial numbers. HS subheadings and duty rates in §6 are marked PENDING and must be verified by a licensed customs broker against the destination country's national tariff before any PO. No mailto: download links, no placeholder download paths. The page meta carries <meta name="robots" content="noindex, nofollow">; the builder is responsible for removing it after gating. This page is informational, does not constitute an offer, and is not a substitute for licensed customs, tax, or engineering advice.