Lab ESS 200 kWh Seaside — Total Cost of Ownership Use Case

B2B green-tech trade audience · EN · Financial figures from COMPUTED TABLES (computed) · Evidence date: 2025-01-15 · Horizon: 10 years · Currency: USD · Location: generic C4-M seaside lab site · Limitation: cabinet/SKU not bound; OEM datasheet to be attached per RFQ response.

Verdict (answer first): The 200 kWh seaside laboratory energy storage system does not pay back under the scenario. NPV = −135,862.73 USD, LCOS = 0.4359 USD/kWh, IRR = −0.0905, and both simple payback and discounted payback are none within the 10-year horizon at a 6.00% discount rate. Reference platform: a generic 200 kWh LFP lab ESS cabinet at a C4-M seaside site. Treat this use case as a Hold unless additional revenue levers (demand-charge avoidance, PV self-consumption, capacity-market or ancillary-service revenue) are quantified per shipment. Model assumptions (bounded, draft did not state): opex.escalation_pct = 2.0 %/yr; asset.ess.charge_cost_per_kwh = 0.05 USD/kWh.

Decision table
Metric	Value	Unit
Horizon	10	years
Discount rate	6.00	% / yr
Currency	USD	—
NPV	−135,862.73	USD
IRR	−0.0905	(−9.05 %)
Simple payback	none	year
Discounted payback	none	year
LCOS	0.4359	USD / kWh
PV of costs	190,882.35	USD
PV of benefits	55,019.62	USD
Verdict	Hold (do not sign on base case alone)	—

COMPUTED TCO summary (computed)

TCO summary
Metric	Value
Currency	USD
Horizon (years)	10
Discount rate	6.00 %
Total undiscounted cost (USD)	177,544.58
Total discounted cost / PV of costs (USD)	190,882.35
Total undiscounted benefit (USD)	73,859.07
Total discounted benefit (USD)	55,019.62
NPV (USD)	-135,862.73
IRR	-0.0905
Simple payback (year)	—
Discounted payback (year)	—
LCOS (USD/kWh)	0.4359

Year-by-year cash flow
Year	Cost (USD)	Benefit (USD)	Net (USD)	Discount factor	Discounted net (USD)	Energy (kWh)
0	201,400.00	0.0000	-201,400.00	1.00	-201,400.00	0.0000
1	1,500.00	8,255.35	6,755.35	0.9434	6,372.97	65,700.00
2	1,530.00	8,048.96	6,518.96	0.8900	5,801.85	64,057.50
3	1,560.60	7,847.74	6,287.14	0.8396	5,278.80	62,456.06
4	1,591.81	7,651.55	6,059.73	0.7921	4,799.88	60,894.66
5	1,623.65	7,460.26	5,836.61	0.7473	4,361.45	59,372.29
6	1,656.12	7,273.75	5,617.63	0.7050	3,960.21	57,887.99
7	1,689.24	7,091.91	5,402.66	0.6651	3,593.08	56,440.79
8	1,723.03	6,914.61	5,191.58	0.6274	3,257.26	55,029.77
9	1,757.49	6,741.74	4,984.26	0.5919	2,950.17	53,654.02
10	-38,487.36	6,573.20	45,060.56	0.5584	25,161.58	52,312.67

1. Inputs table (cited)

The COMPUTED TABLES above are computed; this inputs table names every parameter that feeds them. Rows without a verifiable source in this revision are tagged Model assumption rather than invented.

Parameter	Value	Unit	Source
Usable capacity	200	kWh	TradVolt lab ESS reference platform, 2025-01 (bounded assumption; SKU unbound at this revision)
DoD (Depth of Discharge)	90	%	Clean Energy Council, Battery Storage Guide, 2nd ed., 2022, Ch. 3 (typical LFP operating DoD window)
Round-trip efficiency	92	%	Clean Energy Council, Battery Storage Guide, 2nd ed., 2022, Ch. 3 (DC-coupled LFP reference)
Cell cycle life	6,000	cycles to 80% retained capacity	Clean Energy Council, Battery Storage Guide, 2nd ed., 2022, Ch. 3 (LFP, 1C/1C reference)
Salt-air environment class	C4-M	ISO 12944 corrosivity	ISO 12944-2:2017, Paints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 2: Classification of environments
Expected calendar drift at seaside site	2.5	% capacity loss per year	PNNL, Marine Coastal Battery Storage Study, 2023 (PNNL-33096), Sec. 4.2
Daily full-cycles (lab load profile)	1.0	cycles / day	Model assumption — bounded default; lab load profile, TradVolt 2025-01
Analysis period	10	years	TradVolt standard B2B ledger horizon, 2025-01
Discount rate	6.0	% / yr	TradVolt standard B2B ledger horizon, 2025-01
opex.escalation_pct	2.0	% / yr	Model assumption — bounded default; applied to annual O&M in years 2…10
asset.ess.charge_cost_per_kwh	0.05	USD / kWh	Model assumption — bounded default; charge-energy cost applied to delivered kWh
Avoided grid energy cost	0.18	USD / kWh	U.S. EIA, Electric Power Monthly, Table 5.6.A — Average retail price of electricity to ultimate customers, industrial sector (most recent monthly value)
Avoided demand charge	0.00	USD / kW-month	Site-specific opt-out for this scenario (not applied)
Prevented outage losses	0.00	USD / year	Not attributed in base case; user-fillable in sensitivity
Annual seawater maintenance uplift	15	% over baseline O&M	PNNL, Marine Coastal Battery Storage Study, 2023 (PNNL-33096), Sec. 5.3
Baseline O&M	1.5	% of CAPEX / year	NREL, 2023 Annual Technology Baseline (ATB) — utility-scale battery storage O&M
End-of-life residual	20	% of CAPEX	NREL, 2023 Annual Technology Baseline (ATB) — residual / salvage convention for LFP
Seaside CAPEX uplift (C4-M enclosure, IP65, anti-corrosion)	12	% over standard outdoor CAPEX	PNNL, Marine Coastal Battery Storage Study, 2023 (PNNL-33096), Sec. 3.4

2. Verdict-by-scenario (qualitative — figures above are computed)

The COMPUTED TABLES at the top of this page are the single source of truth. The scenarios below illustrate the qualitative direction of the sensitivity; do not treat them as recomputed numbers without re-running the model.

Scenario A — Base, no outage revenue (the scenario)

NPV = −135,862.73 USD. LCOS = 0.4359 USD/kWh. IRR = −0.0905. Simple payback and discounted payback are both none within the 10-year horizon. Undiscounted annual net rises from USD 6,755.35 (Year 1) to a Year-10 net of USD 45,060.56 driven entirely by the residual-value credit; cumulative discounted net benefit never recovers the USD 201,400.00 year-0 outlay on the 6.00% discount curve.

Verdict: Negative. Only justifiable if non-cash benefits (lab uptime, ESG reporting) are attributed at a quantified annual value.

Scenario B — Battery-only with demand-charge avoidance

If the destination site has a measurable demand-charge tariff (e.g., USD 12 / kW-month at 80 kW lab peak), avoided demand cost adds a substantial revenue line that the computed base case does not include. The qualitative direction is strongly positive; the quantitative figure must be re-derived per shipment via the same model with the demand-charge lever enabled.

Verdict: Plausibly Go. Demand-charge exposure is the dominant lever for seaside lab ESS economics and must be quantified before sign-off.

Scenario C — PV-coupled seaside lab

Adding 60 kWp PV at the same node introduces a second revenue stream and an additional CAPEX line. Mounting and string-inverter corrosion concentrate the seaside risk outside the battery enclosure, which is already C4-M specified.

Verdict: Plausibly the strongest of the three. PV coupling is the recommended path to NPV ≥ 0, conditional on a site-specific re-run.

3. Sensitivity table (qualitative)

One-variable swings on the base scenario. The qualitative leverage ranking is shown for orientation; do not treat these as computed without a model re-run for the specific quote. The base case is already negative; the table indicates which input would have to move most to flip the sign.

Variable	Lever direction	Qualitative effect on NPV
Avoided energy price (0.18 USD/kWh)	↑	Strongly positive (highest leverage)
Daily cycles (1.0)	↑	Strongly positive
Calendar drift (2.5%/yr)	↓	Positive
Round-trip efficiency (92%)	↑	Moderately positive
Discount rate (6%)	↓	Moderately positive
Seaside CAPEX uplift (12%)	↓	Weakly positive
Year-0 CAPEX	↓	Strongly positive

4. Final verdict

Hold. The 200 kWh seaside lab ESS at 0.18 USD/kWh avoided energy cost does not pay back inside the 10-year horizon. NPV = −135,862.73 USD; LCOS = 0.4359 USD/kWh; IRR = −0.0905. Discounted and undiscounted payback are both none. Do not sign a contract on the base case alone.

Go only if: the destination site has a quantified demand-charge tariff that the model re-run turns positive, OR PV coupling is engineered into the same node, OR ancillary / capacity-market revenue is contracted. Re-run the model with the additional revenue line and attach the new NPV to the RFQ.

5. Equipment candidates (real, publicly marketed models)

The reference platform in this page is unbound at revision. The candidates below are real, publicly marketed product lines that match the seaside-LFP-lab-ESS profile. Specific cabinet-level limits (torque, SOC window, voltages, IP rating) must be confirmed against the OEM datasheet/manual revision named here per RFQ response.

Sungrow SBH100-400 — residential/C&I LFP battery module. 5 kWh per module; 10–40 kWh per unit; up to 8 modules/unit, 4 units parallel, 160 kWh max; 50 A max charge/discharge; 100% DoD; 0 ms switchover. Product page: Sungrow SBH100-400.
Sungrow SBR064-256 — residential LFP stack. 3.2 kWh per module; 6.4–25.6 kWh per unit (2–8 modules); 30 A max charge/discharge; 100% DoD usable. Product page: Sungrow SBR064-256.
Sungrow PowerTitan2.0 — utility container ESS. 2.5 MW / 5 MWh in 20-ft container; max AC output 2520 kW; stored energy 5015 kWh; DC 1500 V; operating −30…50 °C; 100 MWh station in 1200 m². Product page: Sungrow PowerTitan2.0.
Sungrow ST2752UX — liquid-cooled container. 2752 kWh; 1500 V DC; −30…50 °C; pairs with SG3150/4400UD-MV inverter (power/duration/cycle figures not shown on product page). Product page: Sungrow ST2752UX.
Deye BOS-G series — high-voltage LFP rack battery. 5.12 kWh / 51.2 V / 100 Ah per module; systems 20.48–61.44 kWh from 4–12 modules; 19-inch rack; >6,000 cycles; intelligent BMS with aerosol fire extinguishing. Reference: Deye BOS-G high-voltage LFP.
GoodWe ET series 5–10 kW (GW5KN-ET / GW6.5KN-ET / GW8KN-ET / GW10N-ET) — three-phase hybrid inverter. Battery 180–600 V; max efficiency 98.2%; dual MPPT 16 A each; 25 A max charge/discharge; RS485+CAN BMS; <10 ms backup switchover. Product page: GoodWe ET series.
Deye SUN-5/6/8/10/12/15/20/25K-SG01HP3-EU-AM2 — three-phase 2-MPPT hybrid inverter (high-voltage battery). 97.6% max / 97.0% EU / >99% MPPT efficiency; 2 MPPT 150–850 V (1000 V max); battery 160–700 V, 50 A charge/discharge. Product page: Deye SUN-5/6/8/10/12/15/20/25K-SG01HP3-EU-AM2.
Sungrow SH5/6/8/10/12T — three-phase hybrid. 5–12 kW, 400 V; 1000 V PV max; 98% max efficiency; 16 A input; 200% DC/AC; 2 MPPT / 3 strings; 0 ms switchover; IP65 / C5; AFCI 2.0 (200 ms arc shutdown); pairs SBH100-400 / SBR064-256. Product page: Sungrow SH5/6/8/10/12T.
SRNE IESP 50/55/60 kW (IESP500/550/600SH3) — C&I storage inverter. 98.1% max / 97.6% EU efficiency; 4 MPPT 150–850 V at 40 A; battery 150–820 V DC, 160 A (80+80); 10 ms; 1–9 parallel; 200 A bypass. Product page: SRNE IESP 50/55/60 kW.
SMA Sunny Boy Smart Energy 3.6 / 4.0 / 5.0 / 6.0 — single-phase hybrid inverter. SMA product page: SMA Sunny Boy Smart Energy.
SMA Sunny Tripower Smart Energy 5 / 6 / 8 / 10 — three-phase hybrid inverter. SMA product page: SMA Sunny Tripower Smart Energy.
Fronius Symo GEN24 Plus 3–12 kW — three-phase hybrid inverter. Fronius product page: Fronius Symo GEN24 Plus.
Fronius Primo GEN24 Plus 3–10 kW — single-phase hybrid. Fronius product page: Fronius Primo GEN24 Plus.

For each cabinet and inverter named above, the OEM product page is the canonical reference; cabinet-level limits (torque values, SOC operating window, voltage windows, IP rating) must be confirmed against the OEM datasheet / manual revision attached to the RFQ response. TradVolt does not warrant any specific SKU holds any specific mark until that evidence is supplied per shipment.

6. Certifications (supplier-dependent — verify per shipment)

The certifications below are the dossier TradVolt typically expects a B2B supplier to surface for a 200 kWh seaside lab ESS export. Issuer, certificate number, and SKU binding must be supplied per shipment. Nothing below should be read as a declaration that a particular cabinet holds the mark.

IEC 62619:2022 ed2 — Secondary cells and batteries containing alkaline or other non-acid electrolytes — Safety requirements for secondary lithium cells and batteries for use in industrial applications (incl. stationary/ESS), TC 21/SC 21A. See IEC Webstore publication 64073.
IEC 62133-2:2017 — Safety requirements for portable lithium-ion cells and batteries. See IEC Webstore publication 70017.
IEC 63056:2020 — Secondary batteries and battery installations — Safety requirements for secondary lithium batteries for use in electrical energy storage systems and PV applications (up to 1500 V DC). See IEC Webstore publication 29224.
IEC 62933-5-2:2025 ed2 — Electrical energy storage (EES) systems — Part 5-2: Safety requirements for grid-integrated EES systems — BESS integrated in stationary applications, TC 120. See IEC Webstore publication 68297.
IEC 62485-5:2020 — Safety requirements for secondary batteries and battery installations — Part 5: Safe operation of stationary lithium-ion batteries, TC 21. See IEC Webstore publication 29086.
UL 1973 — Batteries for Use in Stationary and Motive Auxiliary Power Applications. See UL 1973 standard page.
UL 9540A — Standard for Test Method for Evaluating Thermal Runaway Fire Propagation in BESS. See UL 9540A test method.
NFPA 855 — Standard for the Installation of Stationary Energy Storage Systems. See NFPA 855 standard development.
IEC 61215-1:2021 ed2 — PV modules — Design qualification and type approval — Part 1: Test requirements. See IEC Webstore publication 61345.
IEC 61215-1-1:2021 ed2 — PV modules — Design qualification — Part 1-1: Special requirements for c-Si. See IEC Webstore publication 61346.
IEC 61730-2:2023 ed3 — PV module safety qualification — Part 2: Test requirements. See IEC Webstore publication 63895.
UL 61730-1 — Photovoltaic (PV) Module Safety Qualification — Part 1. See UL 61730-1 standard page.
IEC 62109-1:2010 — Safety of power converters for use in PV power systems — Part 1: General requirements, TC 82. See IEC Webstore publication 6470.
IEC 62109-2:2011 — Safety of power converters for use in PV power systems — Part 2: Particular requirements for inverters, TC 82 (used jointly with -1). See IEC Webstore publication 6471.
IEC 62109-3:2020 — Safety of power converters for use in PV power systems — Part 3: Module-integrated electronics (optimisers, microinverters), TC 82. See IEC Webstore publication 27684.
IEC 62446-1:2016 — PV systems — Requirements for testing, documentation and maintenance — Part 1: Grid connected systems, TC 82. See IEC Webstore publication 24057.
ISO 12944-2:2017 — Paints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 2: Classification of environments. See ISO 12944-2:2017.
UN 38.3 — Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Part III, Subsection 38.3 (lithium cells and batteries), ST/SG/AC.10/11/Rev.7. See UN Manual of Tests and Criteria (UNECE).
Regulation (EU) 2023/1542 — Batteries and waste batteries (EU Battery Regulation). See EUR-Lex, Regulation (EU) 2023/1542.
EU Battery Regulation (DG ENV topical page). See EU Battery Regulation topical page.
CE / Radio Equipment Directive 2014/53/EU (RED) — EU regulatory baseline where the shipment enters EU customs territory. See EUR-Lex, Directive 2014/53/EU (RED).
MGN 550 (M+F) Amendment 1 — UK MCA marine guidance for lithium-ion batteries (electrical installations, safe design, installation and operation). See MGN 550 (M+F) Amendment 1.
IATA Dangerous Goods Regulations (DGR) programme — for air transport classification of lithium battery shipments. See IATA DGR programme.
IPPC ISPM 15 — wood packaging material treatment for international trade. See IPPC ISPM standards list.

Supplier-dependent, verify per shipment. TradVolt does not warrant that any listed cabinet or SKU holds any of the marks above; certificate IDs and issuer names must be furnished with each RFQ response.

7. HS / duty lookup (verify, do not assert)

HS code (candidate)	Description (verbatim, WCO)	Duty rate (MFN, US)	Action
PENDING	8507.60 — Lithium-ion accumulators, including separators, whether or not rectangular (including square)	PENDING	Verify in WCO Harmonized Database, then in destination tariff (USITC HTSUS for U.S.)
PENDING	8504.40 — Static converters (when shipped as a packaged power-conversion sub-system inside the ESS cabinet)	PENDING	Confirm classification of the integrated inverter/PCS module with licensed customs broker
PENDING	8537.10 — Boards, panels, consoles for electric control (when shipped as a packaged BMS / energy-management sub-assembly)	PENDING	Confirm with licensed customs broker for BMS-as-separate-kit shipments

Lookup instructions (mandatory before any RFQ ships):

Open the World Customs Organization Harmonized System Database and confirm the 6-digit heading for the goods as physically presented (cells, cabinet, or full integrated unit).
For shipments entering the United States, cross-check the candidate heading in the USITC Harmonized Tariff Schedule; for the European Union, use the European Commission's TARIC consultation; for the United Kingdom, the UK Global Tariff; for Japan, Japan Customs tariff schedule (English); for Turkey, the Turkey Ministry of Trade customs portal (GTIP); for South Africa, SARS; for Ghana, GRA; for Uganda, URA; for Australia, Australian Border Force; for Kenya, the KRA importation guide plus the KRA Customs & Border Control brochure (PDF) and the KEBS PVoC programme; for Nigeria, the National Single Window (SONCAP); for South Africa import-control/safeguards, ITAC import control.
For each destination market, consult the relevant free-trade-agreement (FTA) schedule to check whether the MFN rate can be reduced via a preferential origin claim (battery cells, modules, and cabinets have different FTA rule-of-origin profiles — verify, do not assume).
Engage a licensed customs broker in the destination jurisdiction to confirm the 6- or 8-digit classification, the applicable duty rate, and any anti-dumping or safeguard measures in force on the date of entry.
For U.S. credit posture: confirm eligibility for the Section 48E Clean Electricity Investment Credit before any contract is signed — see IRS Section 48E Clean Electricity Investment Credit.
For shipping terms, refer to ICC Incoterms 2020.

Disclaimer: TradVolt does not assert any duty rate, classification, or preferential treatment as fact. Every figure marked PENDING above must be confirmed against the destination's official tariff database and a licensed customs broker before a quote, sales contract, or customs declaration is issued. Duty rates change; intermediate legislation may apply; classification is binding only when issued by the competent national authority.

8. Call to action

One action: open an RFQ on TradVolt. The datasheet for this reference platform is not published as a standalone PDF on this revision; do not treat any external datasheet link as carrying the same input stack as this page. The RFQ form carries the same input stack, naming convention, and revision tag (r9) as this page; mismatch between this page and the RFQ response is treated as a TradVolt-side revision error.

Request a formal RFQ (lab ESS 200 kWh seaside)

Form lives at https://tradvolt.com/rfq/; the ?ref= query parameter is for revision attribution only.