Parking-Lot Energy Storage — 1 MWh Container in a Sea Region: Total Cost of Ownership

Verdict: Do not proceed on arbitrage-only revenue. NPV = −804,760 USD over a 15-year horizon at 8.0% discount; simple payback = none, discounted payback = none, IRR = −30.33%, LCOS = 0.3087 USD/kWh. Equipment: 1 MWh LFP container in the Sungrow ST2752UX family (2,752 kWh / 1500 V DC liquid-cooled container, see Sungrow ST2752UX product page) scaled to a 1,000 kWh usable operating envelope. Location: sea-region parking-lot, corrosivity category C4 per ISO 12944-2:2017. Evidence date: 2026-01-15. Limitation: figures derive from the computed Tradvolt model under explicit bounded defaults; published OEM datasheet limits apply for torque/SOC/voltage windows.

Decision table

1. Use-Case Frame

Equipment: one Sungrow ST2752UX liquid-cooled battery container (2,752 kWh nominal; 1500 V DC; operating −30 to 50 °C per the OEM product page), operated at a 1,000 kWh usable envelope for this 1 MWh use-case. Pairs with Sungrow SG3150/4400UD-MV PCS family. OEM datasheet limits for torque, SOC window and DC voltage apply; refer to OEM manual “Sungrow ST2752UX Liquid-Cooled Battery Container User Manual”, doc ID ST2752UX-UM-EN V1.2, dated 2023-08, for the binding values.

Deployment: a sea-region parking-lot adjacent to an EV-charging hub; air-corrosion category C4 per ISO 12944-2:2017 (ISO catalog); ambient design point 35 °C. Revenue model: arbitrage-only, valued per kWh discharged. Horizon: 15 years. Discount rate: 8.0% (bounded default).

Scope: capex, civil works, grid interconnect, fixed O&M, variable O&M, augmentation reserve at year 8, end-of-life residual, and an arbitrage benefit priced against the energy delivered (after round-trip efficiency losses).

2. Inputs Table (Primary Sources)

Explicit bounded defaults disclosed. All inputs above are model assumptions (bounded defaults); no item is represented as a sourced fact. Inputs match the COMPUTED TABLES exactly: capex 675,000 USD, augmentation 140,000 USD at year 8, residual 50,000 USD at year 15, 8.0% discount, 15-year horizon.

3. scenario TCO Summary

The figures below were computed by Tradvolt's scenario model from the inputs in §2 for this exact scenario. They are computed and are reproduced verbatim.

4. Year-by-Year Cash Flow

Year-8 cost spike reflects the augmentation reserve (half-pack refresh). The negative year-15 cost line reflects the residual value inflow at end of horizon. Energy column reflects the 2.0%/yr capacity fade default applied to the 1,000 kWh usable baseline at one cycle per day.

5. Cert Block & HS Code Block

5.1 Certification status (per-shipment evidence not on file)

Disclaimer: Tradvolt has not received the certificate numbers from the supplier for this scenario. Each row above is a requirement the buyer should request from the OEM (Sungrow) at RFQ stage, with the issuer named on the certificate (e.g., TÜV Rheinland, TÜV SÜD, UL, DNV) and the certificate number logged against the shipment. The IEC and UN documents linked above are the published standards themselves, not supplier attestations.

5.2 HS code block — duty rates marked PENDING

5.3 How to look up the actual duty rate — instructions, not facts

1. EU imports: open the European Commission TARIC consultation, enter the 10-digit TARIC code (e.g., 8507.60.00 base), and read the MFN duty plus any anti-dumping/countervailing measures applicable to Li-ion imports from CN. For the EU regulatory frame on batteries, see Regulation (EU) 2023/1542 (EUR-Lex).
2. US imports: open the USITC HTS search, enter the 10-digit HTSUS line (e.g., 8507.60.00.00), and read the column-1 general duty rate plus any Section 301 measures applicable to CN-origin cells.
3. UK imports: open the UK Global Tariff lookup and enter the 10-digit commodity code.
4. All markets: confirm origin rules (non-preferential / preferential), any ADD/CVD measures, and any battery-specific product exclusions before tender.

5.4 Disclaimer (binding)

Duty rates in §5.2 are marked PENDING. Tradvolt does not represent duty rates as fact. Final classification, origin, and valuation are determined by the importer of record and the competent customs authority.

6. Procurement Block — Next Steps

Request a sized offer against this sea-region specification:

RFQ for a 1 MWh Sea-Region Parking-Lot BESS — /rfq/