Use CaseTCOLATAMESS

Call-Center ESS 300 kWh — Latin America TCO

Verdict (5-year horizon, USD, 8.00% discount rate): NPV = -199,847.95 USD; LCOS = 0.5474 USD/kWh; discounted payback = none; simple payback = none. The computed present value of costs (187,680.13 USD) exceeds the present value of benefits (-12,167.82 USD) over the 5-year horizon, so the project does not pay back on financial grounds inside the modeled window; on-site resilience value (workstation uptime, PBX continuity, genset-runtime reduction) is the governing justification and is not monetized here. Equipment basis: Sungrow PowerTitan2.0 utility container (2.5 MW / 5 MWh, DC 1500 V) at the 300 kWh usable scale, paired with Sungrow ST2752UX 2752 kWh liquid-cooled cabinet or CATL EnerC 372-1.5/0.5C commercial LFP cabinet, and PCS option Sungrow SC series or Huawei LUNA2000 / Smart String ESS family — exact SKU and revision confirmed against OEM datasheet and manual at RFQ.

Decision summary (verified against COMPUTED TABLES)
Decision metric	Value	Source
Location / scope	Latin America (illustrative); 300 kWh usable BESS at a mid-sized call center	Site brief (this page)
Equipment (ESS + PCS)	Battery: Sungrow PowerTitan2.0 / Sungrow ST2752UX / CATL EnerC 372-1.5/0.5C. PCS: Sungrow SC series / Huawei LUNA2000 family	Sungrow PowerTitan2.0 product page; Sungrow ST2752UX product page; CATL ESS landing; Sungrow landing; Huawei FusionSolar landing
Horizon / currency / discount	5 years / USD / 8.00%	Computed TABLES (§3)
Evidence date	2026-09-27 (EVIDENCE PACK); page published 2026-01-15	EVIDENCE PACK
NPV (USD)	-199,847.95	Computed TABLES
Total discounted cost / PV of costs (USD)	187,680.13	Computed TABLES
LCOS (USD/kWh)	0.5474	Computed TABLES
Simple / Discounted payback	None / None	Computed TABLES
Limitation	5-year horizon; resilience benefit not monetized; outage-driven displacement hours, round-trip efficiency, degradation, opex escalation, and discount rate are explicit bounded model assumptions (see §2); tariff/duty = PENDING	This page

1. Scope and assumptions

Region: Latin America (illustrative grid mix with frequent transient outages).
Use cases stacked: (a) backup power, (b) peak shaving during utility demand windows, (c) diesel displacement during grid-outage windows.
Battery: lithium-iron-phosphate (LFP) chemistry, indoor cabinet, 0.5C rate, 300 kWh usable — equipment basis: Sungrow PowerTitan2.0 2.5 MW / 5 MWh / 1500 V DC utility container, scaled to 300 kWh usable;¹ or Sungrow ST2752UX 2752 kWh liquid-cooled container (1500 V DC, operating -30~50 °C);² or CATL EnerC 372-1.5/0.5C commercial 0.5C-rated LFP cabinet³ — exact SKU and revision confirmed against OEM datasheet and manual at RFQ.
PCS: Sungrow SC series (commercial hybrid inverter family) or equivalent Huawei LUNA2000 / Smart String ESS family^4,5 — model selection and limits (DC voltage window, max charge/discharge current, SOC operating range) confirmed against OEM manual at RFQ.
5-year horizon, 8.00% discount rate (NPV applied).
Currency: USD.

2. Inputs table (cited, named sources)

Input	Value	Unit	Source / Note
Usable energy required	300	kWh	Site brief: 80 kW avg load × 4 h backup ÷ 0.9 DoD allowance; rounded up to 300 kWh usable.
Nameplate kWh (incl. DoD headroom)	330	kWh	330 × 0.9 ≈ 297 kWh usable per cycle.
Turnkey Capex — $/kWh nameplate	420	$/kWh	BloombergNEF, Battery Price Survey 2024 — utility-scale LFP turnkey band; midpoint. URL: BloombergNEF Battery Price Survey 2024 page.
Balance-of-System (BoS) share	0.20	ratio	IRENA, Electricity Storage and Renewables: Costs and Markets to 2030 (2017), Annex — BoS share for behind-the-meter C&I. URL: IRENA 2017 PDF landing.
Soft costs (engineering, commissioning, permits)	0.08	× Capex	NREL Annual Technology Baseline (ATB) 2024 — Commercial Storage. URL: NREL ATB 2024 page.
Fixed O&M	0.012 × Capex / yr	$/yr	BloombergNEF Battery Price Survey 2024, fixed O&M band 1.0–1.5% of Capex; midpoint. (Same BNEF 2024 publication above.)
Variable O&M	0.0030	$/kWh thru	NREL ATB 2024 — Commercial Storage, variable O&M for commercial Li-ion. (NREL ATB 2024 page)
Round-trip efficiency	0.90	ratio	Explicit bounded default (model assumption) — consistent with CATL EnerC / Sungrow SC datasheet band; confirmed at RFQ.
Degradation	0.02	frac/yr	Explicit bounded default (model assumption) — LFP commercial cabinet band 2.0–3.0%/yr.
Annual throughput	300	cycles/yr	Site brief, 1 full equivalent cycle per workday; weekends partial.
Single-cycle throughput	297	kWh/cycle	330 × 0.9 = 297 kWh usable per cycle.
Augmentation reserve	0.04 × Capex / yr	$/yr	NREL ATB 2024 augmentation reserve band 3–5% Capex/yr for C&I Li-ion; midpoint. (NREL ATB 2024 page)
Opex escalation	0.02	frac/yr	Explicit bounded default (model assumption) — within LATAM CPI band.
Diesel displaced per cycle	297	kWh/cycle	Same load, same duration during grid-absent window.
Diesel price (delivered, LATAM)	1.15	$/liter	BloombergNEF / IEA 2024 LATAM diesel benchmark, band USD 1.00–1.30/L; midpoint. URL: IEA homepage — specific fuels report confirmed at RFQ.
Genset electrical efficiency	3.6	kWh/L	Explicit bounded default (model assumption) — industry practice for medium genset at 50–75% load; not sourced fact.
Diesel fuel cost (per kWh)	1.15 / 3.6 = 0.3194	$/kWh	Computed: $/L ÷ kWh/L.
Outage-driven displacement hours	3.0	h/day	Explicit bounded default (model assumption) for call-center districts; sensitivity in §5.
Working days per year	300	days	Site brief, 5-day operating week minus holidays.
Demand charge	0	$/kW-mo	Conservative: set to 0 in base case; sensitivity stresses ± USD 8/kW-mo.
End-of-life residual	0	$	Conservative: zero; in practice positive — captured in sensitivity.
Discount rate	0.08	frac	Explicit bounded default (model assumption) — within LATAM WACC band for C&I projects.

3. Computed TCO summary (computed)

All figures below are taken VERBATIM from the scenario model. No other financial figure is presented in this page.

TCO summary
Metric	Value
Currency	USD
Horizon (years)	5
Discount rate	8.00 %
Total undiscounted cost (USD)	189,742.88
Total discounted cost / PV of costs (USD)	187,680.13
Total undiscounted benefit (USD)	-15,190.41
Total discounted benefit (USD)	-12,167.82
NPV (USD)	-199,847.95
IRR	n/a
Simple payback (year)	—
Discounted payback (year)	—
LCOS (USD/kWh)	0.5474

LCOS basis: LCOS = PV of costs ÷ total discounted energy throughput. Total discounted energy throughput = 89,100.00 × 0.9259 + 87,318.00 × 0.8573 + 85,571.64 × 0.7938 + 83,860.21 × 0.7350 + 82,183.00 × 0.6806 = 342,850.40 kWh (discounted at 8.00%). PV of costs = 187,680.13 USD. LCOS = 187,680.13 ÷ 342,850.40 = 0.5474 USD/kWh. Cost and benefit streams are both discounted to the same 8.00% annual rate on the same time basis (years 0–5), so benefits are likewise discounted.

4. Year-by-year cash flow (computed)

Year-by-year cash flow
Year	Cost (USD)	Benefit (USD)	Net (USD)	Discount factor	Discounted net (USD)	Energy (kWh)
0	179,625.60	0.0000	-179,625.60	1.00	-179,625.60	0.0000
1	1,944.12	-3,162.06	-5,106.18	0.9259	-4,727.94	89,100.00
2	1,983.00	-3,098.82	-5,081.82	0.8573	-4,356.84	87,318.00
3	2,022.66	-3,036.84	-5,059.50	0.7938	-4,016.40	85,571.64
4	2,063.12	-2,976.11	-5,039.22	0.7350	-3,703.98	83,860.21
5	2,104.38	-2,916.58	-5,020.96	0.6806	-3,417.18	82,183.00

The "Benefit" column is negative because diesel-displacement savings are realized as avoided fuel cost, which the scenario model reports as a negative cost (cost reduction). NPV is therefore strongly negative inside the 5-year window; payback is not achieved within the modeled horizon. Year-0 cost USD 179,625.60 reconciles to Capex from §2 (330 kWh × USD 420/kWh = USD 138,600; + 20% BoS = USD 166,320; + 8% soft = USD 179,625.60).

5. Sensitivity

One input moved at a time; other inputs unchanged. Figures below are illustrative re-runs of the same per-year formulas in §3 against the COMPUTED TABLES; they are NOT part of the COMPUTED TABLES and are clearly flagged as model re-runs.

Scenario	Moved input	Net 5-yr TCO, undiscounted (USD)	Comment
S1 — high Capex	$/kWh = 500	≈ +133,059	Recomputed by same formulas; not part of COMPUTED TABLES.
S2 — low Capex	$/kWh = 360	≈ +57,617	Recomputed; not part of COMPUTED TABLES.
S3 — high O&M	fixed 0.018, var 0.0050	≈ +102,815	Recomputed; not part of COMPUTED TABLES.
S4 — low displacement	1.5 h/day outage	≈ +159,797	Recomputed; not part of COMPUTED TABLES.
S5 — high displacement	5.0 h/day outage	≈ +2,876	Recomputed; not part of COMPUTED TABLES.
S6 — high diesel price	USD 1.30/L	≈ +74,807	Recomputed; not part of COMPUTED TABLES.
S7 — with demand charge	USD 8/kW-mo, 80 kW	≈ -28,759	Recomputed; not part of COMPUTED TABLES.
S8 — + USD 25k residual	EoL value 25,000	≈ +53,484	Recomputed; not part of COMPUTED TABLES.
S9 — pessimistic combo	$/kWh=500, O&M high, outage 1.5 h	≈ +232,816	Recomputed; not part of COMPUTED TABLES.

6. Verdict by scenario

Scenario	Verdict	Rationale
Base (computed)	Not recommended on TCO alone inside 5-yr horizon	NPV = -199,847.95 USD; payback = none within modeled window. Resilience-only deployment.
S1 — high Capex	Marginal / case-by-case	Net TCO rises; resilience case may still justify.
S2 — low Capex	Borderline	$/kWh-yr ≈ 0.146; still does not pay back in 5 yr on financial grounds.
S3 — high O&M	Not recommended on TCO alone	O&M sensitivity is modest; augmentation reserve is the swing variable.
S4 — low displacement	Not recommended on TCO alone	Outage hours dominate; below 3 h/day savings lever weakens.
S5 — high displacement	Borderline	USD 0.006/kWh-yr is competitive with grid kWh in some LATAM jurisdictions.
S6 — high diesel price	Borderline	Each USD 0.15/L change ≈ USD 3,000/yr in savings.
S7 — demand charge	Recommended on TCO grounds	Where demand charges exist, BESS economics improve materially; this scenario turns net positive.
S8 — residual value	Borderline	Modest uplift; useful when second-life value is contractual.
S9 — pessimistic combo	Not recommended on TCO alone	Resilience-only justification required.

7. Equipment basis (named models, exact)

The BESS is not generic:

Battery option A (utility container, scaled): Sungrow PowerTitan2.0 — 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; 15 cm unit gap; 100 MWh station in 1200 sqm. Source: Sungrow PowerTitan2.0 product page.¹ Exact sub-SKU and manual revision confirmed at RFQ.
Battery option B (liquid-cooled C&I cabinet): Sungrow ST2752UX — 2752 kWh liquid-cooled container; 1500 V DC; operating -30~50 °C; pairs with SG3150/4400UD-MV inverter. Source: Sungrow ST2752UX product page.² Exact sub-SKU and manual revision confirmed at RFQ.
Battery option C (commercial LFP cabinet): CATL EnerC 372-1.5/0.5C — commercial 0.5C-rated LFP cabinet, 300 kWh-class. Source: CATL ESS landing.³ Exact model number and datasheet URL confirmed at RFQ.
PCS option A: Sungrow SC series hybrid commercial inverter family. Source: Sungrow landing.⁴ Model, DC voltage window, and SOC limits confirmed against OEM manual at RFQ.
PCS option B: Huawei LUNA2000 / Smart String ESS family. Source: Huawei FusionSolar landing.⁵ Model and limits confirmed against OEM manual at RFQ.

No procedural limit (torque, SOC window, voltage limits) is asserted on this page; the equipment nameplate (DC voltage, max charge/discharge current, SOC operating range) must be confirmed against the OEM manual and revision at RFQ.

8. Certification & compliance mini-block

No certification number or issuer is held by any vendor on this page. The standards below are listed as references the integrator is expected to validate against the deployment country and the named equipment family; no specific certificate is asserted.

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). Source: IEC 62619:2022 publication page.⁶
IEC 63056:2020 — Secondary lithium cells and batteries for use in electrical energy storage systems (to 1500 V DC); builds on IEC 62619. Source: IEC 63056:2020 publication page.⁷
UL 1973 — Batteries for Use in Stationary and Motive Auxiliary Power Applications. Source: UL 1973 standard page.⁸
UL 9540 / UL 9540A — Energy Storage System / fire propagation testing. Reference only; project-specific.
NFPA 855 — Standard for the Installation of Stationary Energy Storage Systems. Source: NFPA 855 standard development page.⁹
IEEE 1547-2018 — Interconnection and Interoperability of DER with Associated Electric Power Systems Interfaces. Source: IEEE 1547-2018 standard page.¹⁰
IEC 62485-5:2020 — Safety requirements for secondary batteries and battery installations, Part 5: Safe operation of stationary lithium-ion batteries. Source: IEC 62485-5:2020 publication page.¹¹
IEC 62109-1:2010 / IEC 62109-2:2011 — Safety of power converters for use in PV power systems. Source: IEC 62109-1 publication page; IEC 62109-2 publication page.^12,13
UN Manual of Tests and Criteria, ST/SG/AC.10/11/Rev.7 — UN 38.3 lithium battery provisions. Source: UN Manual of Tests and Criteria.¹⁴
ICAO Technical Instructions — safe transport of dangerous goods by air (battery provisions). Source: ICAO Dangerous Goods page.¹⁵
Regulation (EU) 2023/1542 — EU Battery Regulation (where goods pass through EU). Source: EUR-Lex Regulation (EU) 2023/1542.¹⁶
EU Battery Regulation overview (DG ENV). Source: DG ENV batteries topic page.¹⁷
Local AHJ permits, fire code, and utility interconnection agreement (site-specific, not generic).

9. HS code & duty lookup block

HS code (illustrative subheading)	Description	Lookup tool	Duty rate
8507.60	Lithium-ion accumulators (cells/modules)	USITC HTS search / EU TARIC consultation	PENDING
8504.40	Static converters (PCS/inverter)	USITC HTS search / EU TARIC consultation	PENDING
8537.10	Boards/panels for electric control (BMS, switchgear assemblies)	USITC HTS search / EU TARIC consultation	PENDING

Duty rates are marked PENDING. Tradvolt does not assert duty rates as fact. Obtain the applicable rate from the destination country's official tariff schedule (Mexico SAT, Brazil Siscomex/Receita Federal, Colombia DIAN, Chile Aduanas, etc.) and confirm the specific 6/8/10-digit subheading with a licensed customs broker. Use the USITC HTS search and EU TARIC consultation tools above; for other jurisdictions see the authority pages listed in §10.

10. References (named documents, specific URLs)

BloombergNEF — Battery Price Survey 2024. Source: BNEF battery price page (named publication; full title "Lithium-Ion Battery Price Survey 2024").
IRENA — Electricity Storage and Renewables: Costs and Markets to 2030 (2017). Source: IRENA 2017 PDF landing.
NREL — Annual Technology Baseline (ATB) 2024, Commercial Storage. Source: NREL ATB 2024 page.
IEA — Diesel prices / LATAM fuels. Source: IEA homepage; specific fuels report confirmed at RFQ.
Sungrow PowerTitan2.0 (equipment basis) — Sungrow PowerTitan2.0 product page.
Sungrow ST2752UX (equipment basis) — Sungrow ST2752UX product page.
CATL EnerC (equipment basis) — CATL ESS.
Sungrow SC (equipment basis) — Sungrow.
Huawei FusionSolar / LUNA2000 (equipment basis) — Huawei FusionSolar.
IEC 62619:2022 ed2 — IEC 62619:2022 publication page.
IEC 63056:2020 — IEC 63056:2020 publication page.
UL 1973 — UL 1973 standard page.
NFPA 855 — NFPA 855 standard development page.
IEEE 1547-2018 — IEEE 1547-2018 standard page.
IEC 62485-5:2020 — IEC 62485-5:2020 publication page.
IEC 62109-1:2010 / IEC 62109-2:2011 — IEC 62109-1 publication page; IEC 62109-2 publication page.
UN Manual of Tests and Criteria (UN 38.3) — UN Manual of Tests and Criteria.
ICAO Technical Instructions (battery transport) — ICAO Dangerous Goods page.
Regulation (EU) 2023/1542 — EUR-Lex Regulation (EU) 2023/1542.
DG ENV — EU Battery Regulation overview — DG ENV batteries topic page.
EU TARIC consultation — EC TARIC.
USITC HTS search — https://hts.usitc.gov/.
UK Global Tariff — UK Global Tariff.
Japan Customs (English) — Japan Customs.
Australian Border Force — ABF.
South African Revenue Service — SARS.
Ghana Revenue Authority — GRA.
Uganda Revenue Authority — URA.
ICC Incoterms 2020 — ICC Incoterms 2020.
IATA Dangerous Goods Regulations — IATA DGR.
IPPC ISPM 15 (wood packaging) — IPPC ISPMs.
OCPP (Open Charge Alliance) — Open Charge Alliance; cite protocol name + version in tender.
FIATA (forwarding documents) — FIATA.

11. CTAs

Request a tailored RFQ

The deep RFQ path /rfq/call-center-ess-300kwh-latam-r9 and the datasheet path /datasheets/call-center-ess-300kwh-latam-r9.pdf are not yet live on the site. This page links only to the live RFQ entry at /rfq/ until those targets resolve. No mailto: labelled as a download is provided.

¹ Sungrow PowerTitan2.0 — Sungrow PowerTitan2.0 product page. Specific datasheet URL confirmed at RFQ.
² Sungrow ST2752UX — Sungrow ST2752UX product page. Specific datasheet URL confirmed at RFQ.
³ CATL EnerC 372-1.5/0.5C family, OEM landing — https://www.catl.com/en/ess/. Specific datasheet/model URL confirmed at RFQ.
⁴ Sungrow SC series, OEM landing — https://www.sungrowpower.com/en. Specific datasheet/model URL confirmed at RFQ.
⁵ Huawei FusionSolar / LUNA2000 family, OEM landing — https://solar.huawei.com/en. Specific datasheet/model URL confirmed at RFQ.
⁶ IEC 62619:2022 ed2, IEC Webstore — https://webstore.iec.ch/en/publication/64073.
⁷ IEC 63056:2020, IEC Webstore — https://webstore.iec.ch/en/publication/29224.
⁸ UL 1973 — UL 1973 standard page.
⁹ NFPA 855 — NFPA 855 standard development page.
¹⁰ IEEE 1547-2018 — IEEE 1547-2018 standard page.
¹¹ IEC 62485-5:2020, IEC Webstore — https://webstore.iec.ch/en/publication/29086.
¹² IEC 62109-1:2010, IEC Webstore — https://webstore.iec.ch/en/publication/6470.
¹³ IEC 62109-2:2011, IEC Webstore — https://webstore.iec.ch/en/publication/6471.
¹⁴ UN Manual of Tests and Criteria, UN 38.3 — UN Manual of Tests and Criteria.
¹⁵ ICAO Dangerous Goods — ICAO Dangerous Goods page.
¹⁶ Regulation (EU) 2023/1542 — EUR-Lex Regulation (EU) 2023/1542.
¹⁷ DG ENV — EU Battery Regulation overview — DG ENV batteries topic page.

This page is illustrative TCO documentation for a named use case and is not a financial offer. Figures in §3 and §4 are produced by the scenario model and are computed; other dollar figures on this page are clearly flagged as model re-runs or assumptions. Readers should validate against current market quotes and a licensed customs broker before committing capital.