Verdict (15-yr, 8.00% discount, USD): NPV = -152,256 USD; LCOS = 0.3296 USD/kWh; discounted payback = none; simple payback = none; IRR = -9.55%. Equipment (named single-OEM basis for RFQ): Sungrow ST2752UX liquid-cooled container BESS (cabinet rating 2752 kWh / 1500 V DC / -30~50 °C operating; cabinet manual revision and exact 300 kWh sub-system configuration to be confirmed with the OEM at RFQ; see Sungrow ST2752UX product page). Cell basis prismatic LFP (EVE Energy LF280K-class); see EVE Energy for the cell-maker range (cell manual revision to be confirmed at RFQ). Location: seaside golf course (coastal, ISO 12944-2:2017 §5 corrosivity category C4/C5). Horizon: 15 years. Evidence date: 2026-01-15. Limitation: no certificate has been issued or verified by tradvolt.com for the specific product; the 0.88 RT efficiency, 0.05 coastal derate, 2.0%/yr capacity loss and 330 cycles/yr are bounded model assumptions, not vendor-confirmed values — exact equipment model, OEM manual revision, and certificate numbers must be confirmed at the RFQ stage.

This page presents the scenario TCO tables only. Numbers are computed and were produced by the tradvolt.com scenario model on the inputs stated in §1. The verdict is negative on energy-arbitrage economics alone; resilience, demand-charge avoidance, or ancillary services would be needed to flip NPV.

1. Inputs and assumptions

No certificate has been issued or verified by tradvolt.com for the specific product. The 0.88 RT efficiency, 0.05 coastal derate, 2.0%/yr degradation, 8.00% discount rate, 330 cycles/yr, asset.ess.charge_cost_per_kwh and asset.ess.value_per_kwh_discharged inputs above are bounded model assumptions used to size the scenario; they must be replaced with vendor-quoted values and applicable standard edition numbers before procurement.

2. TCO summary

3. Year-by-year cash flow

4. Reading the result

NPV is negative across the 15-year horizon; both simple and discounted payback fail to occur within the horizon. LCOS of 0.3296 USD/kWh is the discounted cost per discounted kWh delivered (LCOS denominator basis = discounted kWh delivered, i.e. PV of the energy column in §3) and is the figure to compare against the local peak/off-peak spread at the point of interconnection. IRR is computed as the discount rate that sets the NPV of the §3 cash-flow stream to zero. The base case is not a recommendation to proceed on energy-arbitrage economics alone.

5. Certification and conformity

Stationary BESS procurements typically reference the following. Confirm scope against the specific product manual revision at RFQ. Disclaimer: no certificate has been issued or verified by tradvolt.com for the specific TBD product; the references below are the standards typically cited for the product class, with full designation, issuer, and edition in line.

• UL 1973:2022, Underwriters Laboratories — Standard for Batteries for Use in Stationary and Motive Auxiliary Power Applications (UL 1973 product page); see also UL Solutions battery module and pack testing.
• UL 9540:2023 / UL 9540A:2019 (4th ed.), Underwriters Laboratories — Energy Storage Systems and thermal-runaway test method; certification scope at UL 9540/9540A/1973 certification scope page and test method at UL 9540A test method page.
• IEC 62619:2022 ed2, International Electrotechnical Commission (TC 21/SC 21A) — Safety requirements for secondary lithium cells and batteries for use in industrial applications, including stationary/ESS (IEC 62619:2022 ed2 publication page).
• IEC 62485-5:2020, International Electrotechnical Commission (TC 21) — Safety requirements for secondary batteries and battery installations, Part 5: Safe operation of stationary lithium ion batteries (IEC 62485-5:2020 publication page).
• UN 38.3, UNECE — Lithium battery testing provisions, per the UN Manual of Tests and Criteria, ST/SG/AC.10/11/Rev.7 (UN Manual of Tests and Criteria).
• Regulation (EU) 2023/1542, European Parliament and Council — EU Battery Regulation, applies to placing on the EU market (Regulation (EU) 2023/1542 — EUR-Lex); see also EU battery safety, air-transport and regulation docs.
• NFPA 855, Standard for the Installation of Stationary Energy Storage Systems (NFPA 855 standard development page).
• IEEE 1547-2018, Standard for Interconnection and Interoperability of Distributed Energy Resources with Associated Electric Power Systems Interfaces (IEEE 1547-2018 page).
• IEC 62109-1:2010, International Electrotechnical Commission (TC 82) — Safety of power converters for use in photovoltaic power systems, Part 1: General requirements (IEC 62109-1:2010 publication page).
• ISO 12944-2:2017, International Organization for Standardization — Paints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 2: Classification of environments (§5 corrosivity categories; cite ISO number, title, year; ISO standards search — ISO search).

6. HS code and customs duty

Duty rates are jurisdiction- and configuration-specific and must be confirmed with a licensed broker and the relevant national authority.

Other national tariff lookup tools, used here as reference paths and not as a substantive claim: Japan Customs tariff schedule (English); Australian Border Force tariff classification; South African Revenue Service customs and excise tariff; Central Board of Indirect Taxes and Customs (India); ICEGATE (India customs electronic gateway); NZ Customs Working Tariff Document; Taiwan Customs web portal; Ghana Revenue Authority; Uganda Revenue Authority. Incoterms 2020 apply to the freight leg — see ICC Incoterms 2020. US importers must additionally clear US Customs and Border Protection entry procedures; see CBP Tips for New Importers and Exporters; see also US International Trade Administration.

7. Sources

8. Call to action

Request a quotation (RFQ) for a 300 kWh seaside golf-course ESS. The RFQ form is the only live intake path; tradvolt.com does not host datasheet downloads for this use-case.

9. Disclaimer

All figures are produced by the tradvolt.com scenario model on the inputs in §1 and are computed for that scenario only. Real-world outcomes vary with tariffs, climate, financing, cycling profile, and the specific OEM product selected. Inputs marked "model assumption" must be replaced with vendor-quoted values before procurement. The 0.88 RT efficiency, 0.05 coastal derate, 2.0%/yr degradation, 8.00% discount rate, 330 cycles/yr, asset.ess.charge_cost_per_kwh and asset.ess.value_per_kwh_discharged inputs are bounded model assumptions; the named equipment basis (Sungrow ST2752UX liquid-cooled container BESS, cabinet rating 2752 kWh / 1500 V DC / -30~50 °C, with EVE Energy LF280K-class prismatic LFP cells) is a model assumption pending supplier selection at RFQ, and no certificate has been issued or verified by tradvolt.com for any specific product on this page. tradvolt.com is a B2B trade-introduction platform and does not provide engineering, customs, or financial advice; confirm all numbers with qualified professionals before import.