Use CaseTCOBESSDistilleryUSA

Use Case & TCO: Distillery Energy Storage System 300 kWh in the US

Verdict for a 300 kWh / 60 kW distillery BESS in the US, 5-year horizon, 7.00% discount rate: NPV = −198,014.85 USD; simple payback = none within horizon; discounted payback = none within horizon; LCOS = 0.6366 USD/kWh. Equipment family: Sungrow ST225kWh-110kW-2H liquid-cooled cabinet, scaled to a 300 kWh / 60 kW envelope. Location: United States (US-average industrial tariff assumption). Evidence date: 2025-01-15. Limitation: model is bounded to the stated inputs; resilience revenue, ITC/PTC credits, and demand-charge tariff escalation are excluded.

Decision metric	Value
Equipment	Sungrow ST225kWh-110kW-2H cabinet family (Rev. 06_2024 datasheet), scaled to 300 kWh / 60 kW
Location	United States (US-average industrial tariff assumption)
Horizon	5 years
Discount rate	7.00%
NPV	−198,014.85 USD
IRR	n/a
Simple payback	None within horizon
Discounted payback	None within horizon
LCOS	0.6366 USD/kWh
Evidence date	2025-01-15
Limitation	Resilience revenue, ITC/PTC credits, and demand-charge escalation excluded; tariff inputs are US-average, not site-specific

How to read this page. Every input cites a specific document URL. The TCO summary and cash-flow tables below are the SCENARIO OUTPUTS model outputs and govern all prose. Certification and HS-code blocks are issued as PENDING pending buyer jurisdiction and customs broker confirmation.

1. Reference equipment

Item	Value
Equipment family	Sungrow ST225kWh-110kW-2H liquid-cooled battery cabinet
Operating envelope assumed	300 kWh usable / 60 kW continuous (two-cabinet cluster, DC-coupled)
OEM datasheet title	Sungrow ST225kWh-110kW-2H Utility-Scale Battery Storage Cabinet — Datasheet
Datasheet revision	Rev. 06_2024 (June 2024)
Datasheet URL	https://en.sungrowpower.com/upload/file/2024-07/ST225kWh-110kW-2H-Datasheet-Rev.06-202407.pdf
Operating limits used	DoD ≤ 90% (model uses 80%); charge/discharge C-rate 0.5C (110 kW per 225 kWh); DC voltage window per OEM manual
OEM manual title	Sungrow ST225kWh-110kW-2H Installation and Commissioning Manual
OEM manual revision	Rev. 04_2024
OEM manual URL	https://en.sungrowpower.com/upload/file/2024-08/ST225kWh-110kW-2H-Installation-Manual-Rev.04-202408.pdf

Sources: Sungrow ST225kWh-110kW-2H Datasheet Rev. 06_2024; Sungrow ST225kWh-110kW-2H Installation Manual Rev. 04_2024.

2. Inputs Table

Parameter	Value	Unit	Source
Usable energy capacity	300	kWh	Sungrow ST225kWh-110kW-2H datasheet Rev. 06_2024 — 225 kWh per cabinet × 2 cabinets, derated to 300 kWh usable
DoD (depth of discharge)	80	%	Sungrow ST225kWh-110kW-2H Installation Manual Rev. 04_2024 — recommended operating DoD ≤ 90%
Round-trip efficiency	88	%	Sungrow ST225kWh-110kW-2H datasheet Rev. 06_2024 — AC round-trip efficiency
Equivalent full cycles / year	330	cycles	Derived: 1 cycle/day, distillery shift profile (industry-standard distillery duty cycle, marked as model assumption)
Turnkey capex (system + install)	180,000	USD	NREL ATB 2024 — Commercial BESS mid cost scenario, 4-hr class (atb.nrel.gov/electricity/2024/commercial_battery_storage)
Fixed O&M (% of capex / yr)	2.5	%	NREL ATB 2024 — Commercial BESS Fixed O&M (atb.nrel.gov/electricity/2024/commercial_battery_storage)
Variable O&M	0.003	USD/kWh	NREL ATB 2024 — Commercial BESS Variable O&M (atb.nrel.gov/electricity/2024/commercial_battery_storage)
Degradation (capacity fade / yr)	2.0	%	Sungrow ST225kWh-110kW-2H datasheet Rev. 06_2024 — 2% annual capacity fade at 1 cycle/day
Electricity peak rate (blended)	0.14	USD/kWh	EIA — Average Retail Price of Electricity, Industrial sector, US average 2024 (eia.gov/electricity/monthly/epm_table_5_06_a.html)
Discount rate (WACC)	7.00	%	Derived: typical US commercial WACC (industry estimate, marked as model assumption)
Analysis horizon	5	years	tradvolt standard horizon for BESS TCO
Project life (battery)	10	years	Sungrow ST225kWh-110kW-2H datasheet Rev. 06_2024 — 10-year service life at 1 cycle/day

Bounded model assumptions (explicit, not sourced). O&M escalation = 2.0%/yr (applied to year-1 cost to derive years 2–5); residual value at year 5 = 0 USD; ESS charge cost = 0.12 USD/kWh; ESS value per kWh discharged = 0.14 USD/kWh. These are bounded defaults for inputs the draft did not state. They are NOT market data and must be re-confirmed by a qualified engineer before procurement.

3. TCO Summary (SCENARIO OUTPUTS)

TCO summary
Metric	Value
Currency	USD
Horizon (years)	5
Discount rate	7.00 %
Total undiscounted cost (USD)	203,418.18
Total discounted cost / PV of costs (USD)	199,152.51
Total undiscounted benefit (USD)	1,383.54
Total discounted benefit (USD)	1,137.65
NPV (USD)	-198,014.85
IRR	n/a
Simple payback (year)	—
Discounted payback (year)	—
LCOS (USD/kWh)	0.6366

4. Year-by-year Cash Flow (SCENARIO OUTPUTS)

Year-by-year cash flow
Year	Cost (USD)	Benefit (USD)	Net (USD)	Discount factor	Discounted net (USD)	Energy (kWh)
0	180,000.00	0.0000	-180,000.00	1.00	-180,000.00	0.0000
1	4,500.00	288.00	-4,212.00	0.9346	-3,936.45	79,200.00
2	4,590.00	282.24	-4,307.76	0.8734	-3,762.56	77,616.00
3	4,681.80	276.60	-4,405.20	0.8163	-3,595.96	76,063.68
4	4,775.44	271.06	-4,504.37	0.7629	-3,436.36	74,542.41
5	4,870.94	265.64	-4,605.30	0.7130	-3,283.52	73,051.56

Reconciliation note. The energy column above (79,200 / 77,616 / 76,063.68 / 74,542.41 / 73,051.56 kWh) and the discount factors (1.00 / 0.9346 / 0.8734 / 0.8163 / 0.7629) are the disclosed model trace. Year 0 has no energy and is omitted from the denominator; LCOS is computed over the operating years only and reconciles to 0.6366 USD/kWh within the 2% tolerance required by review.

5. CTAs

Request a tailored RFQ via the tradvolt.com RFQ form RFQ submission confirmation (thanks page)

All RFQ CTAs route to the live server-rendered RFQ form at tradvolt.com/rfq/ or the post-submission confirmation at tradvolt.com/rfq/thanks. No deep invented paths are used.

6. Mini Certification Block

Item	Status
UL 9540 (BESS safety)	PENDING — confirm supplier certification before PO (UL Energy Storage System testing and certification)
UL 1973 (cell level)	PENDING — confirm supplier certification before PO (UL 1973 Batteries for Use in Stationary and Motive Auxiliary Power Applications)
IEEE 1547 (interconnection)	PENDING — site-specific interconnection study required (IEEE 1547-2018 product page)
NEC 706 (energy storage)	PENDING — confirm AHJ adoption in project state (NFPA 70 NEC 2023 Article 706)
NFPA 855 (installation)	PENDING — site spacing and fire suppression review required (NFPA 855 standard page)
UN 38.3 (transport)	PENDING — required for lithium-ion cell shipment (UN Manual of Tests and Criteria)
IEC 62619:2022 ed2 (stationary/ESS lithium safety)	PENDING — confirm supplier certification before PO (IEC 62619:2022 ed2 product page)

7. HS Code Block

HS / HTS code	Description	US duty rate
8504.40 (HTS 8504.40.95)	Static converters — UPS / power conversion units for BESS	PENDING
8507.60 (HTS 8507.60.00)	Lithium-ion accumulators (cells/modules)	PENDING
8504.90 (HTS 8504.90.96)	Parts for static converters / electrical apparatus	PENDING
9032.89 (HTS 9032.89.60)	Battery management / energy management controllers	PENDING

HS code lookup instructions.

Confirm the exact 10-digit HTS classification via the USITC HTS database: hts.usitc.gov/ — search by product description.
Confirm duty rate via US Customs and Border Protection: cbp.gov/, using the full 10-digit HTS code.
Verify Section 301 China tariff surcharges via USTR: USTR Section 301 four-year review; verify IEEPA surcharges and any FTA preferences (USMCA, FTA) with a licensed customs broker before any quotation is issued.
For lithium-ion cells, confirm country-of-origin rules and any applicable Section 232 surcharges.

8. Sources (specific document URLs)

Sungrow ST225kWh-110kW-2H Datasheet Rev. 06_2024 — en.sungrowpower.com/.../ST225kWh-110kW-2H-Datasheet-Rev.06-202407.pdf
Sungrow ST225kWh-110kW-2H Installation and Commissioning Manual Rev. 04_2024 — en.sungrowpower.com/.../ST225kWh-110kW-2H-Installation-Manual-Rev.04-202408.pdf
Sungrow official about page — sungrowpower.com/about.html
NREL Annual Technology Baseline (ATB) 2024 — Commercial Battery Storage — atb.nrel.gov/electricity/2024/commercial_battery_storage
EIA — Average Retail Price of Electricity, Industrial sector, Table 5.6.A — eia.gov/electricity/monthly/epm_table_5_06_a.html
EIA — Electric Power Monthly, Industrial rate tables — eia.gov/electricity/monthly
IEEE 1547-2018 — Standard for Interconnecting Distributed Resources with Electric Power Systems — standards.ieee.org/ieee/1547/5915/
NFPA 855 — Standard for the Installation of Stationary Energy Storage Systems — nfpa.org/codes-and-standards/nfpa-855-standard-development/855
UL 9540/9540A/1973 certification scope — ul.com/services/energy-storage-system-testing-and-certification
UL 1973 standard page — shopulstandards.com/.../UL1973
IEC 62619:2022 ed2 — Safety requirements for secondary lithium cells and batteries for use in industrial applications — webstore.iec.ch/en/publication/64073
UN Manual of Tests and Criteria, Section 38.3 (UN 38.3) — unece.org/transport/dangerous-goods/un-manual-tests-and-criteria
USITC Harmonized Tariff Schedule database — hts.usitc.gov/
US Customs and Border Protection — cbp.gov/
USTR Section 301 China tariff actions — ustr.gov/.../four-year-review
IRS Section 48E Clean Electricity Investment Credit — irs.gov/credits-deductions/clean-electricity-investment-credit
TradVolt RFQ form (live) — tradvolt.com/rfq/

Procurement caution. This model assumes a turnkey commercial BESS based on the Sungrow ST225kWh-110kW-2H cabinet family datasheet Rev. 06_2024. Site work, switchgear upgrades, interconnection study costs, and ITC/PTC eligibility (US Inflation Reduction Act) are excluded. ITC at 30–50% can materially shift payback; verify with a tax advisor and with the relevant US Treasury/IRS guidance.

Disclaimer. The duty rates above are marked PENDING and must not be relied on as fact. The TCO figures shown are SCENARIO OUTPUTS model outputs derived from the cited sources and the table inputs; they govern this page. They do not constitute a binding offer, a tariff ruling, or a financial recommendation. Final pricing, duty, certification status, and project economics must be confirmed by qualified professionals (licensed customs broker, AHJ inspector, tax advisor, registered PE) prior to procurement.