Data Center ESS — 10 MWh / 5 MW Use-Case TCO (India)

Slug: /use-cases/data-center-ess-10mwh-in-r9/ · Equipment: CATL EnerC 5 MW / 10 MWh containerised LFP (CATL energy storage product family) · Region: IN-R9 (Maharashtra example tariff, MSEDCL HT-II schedule) · Horizon: 12 years · Currency: USD · Evidence pack reference date: 2026-09-22.

0. Verdict (Read First)

NPV = −5,753,115.59 USD over a 12-year horizon at 8.00% WACC on the scenario. Simple payback = None. Discounted payback = None. LCOS = 0.2990 USD/kWh (299.0 USD/MWh). The single-stack use-case does not amortise at the computed inputs; value-creation requires stacking (≥2 cycles/day, ancillary services, or tariff escalation materially above 3%/yr).

ItemValue
Equipment / familyCATL EnerC 5 MW / 10 MWh containerised LFP (CATL ESS product family landing) — specific shipped-manual edition/serial recorded per shipment on the MTC
LocationMaharashtra, IN-R9 — MSEDCL HT-II tariff schedule
Horizon12 years
Discount rate (WACC)8.00%
Evidence date2026-09-22 (model audit; CBIC/EUR-Lex/IEC/UN sources as cited)
Limitationscenario assumes 1 cycle/day and 80 h/yr diesel hedge; stacking scenarios require separate RFQ-grade model run. Specs (RTE 88%, DoD 90%, 1C) named against the CATL EnerC 5 MW / 10 MWh product family landing; exact datasheet PDF edition/serial recorded on MTC at RFQ.
NPV (USD)−5,753,115.59
IRR−11.89%
Simple paybackNone
Discounted paybackNone
LCOS (USD/kWh)0.2990

Equipment manual references (limits cited against the CATL EnerC 5 MW / 10 MWh model designation): SOC operating window, max charge/discharge C-rate, DC bus voltage range, and torque values for inter-container busbars are taken from the CATL EnerC 5 MW / 10 MWh product manual (specific shipped-manual edition/serial recorded per shipment on the MTC; family-level technical specs confirmed against the CATL ESS product family landing).

1. Use-Case Definition

A 2 MW continuous IT load (hyperscale edge / colocation hall) requires (a) 15-minute ride-through at full load to ride grid faults and generator spin-up, (b) 4 h/day peak-shaving to flatten the 17:00–21:00 tariff block, and (c) 4-hour backup autonomy for IT load during extended grid outage. The scenario costs one CATL EnerC 5 MW / 10 MWh containerised LFP unit (1C, 88% round-trip, 90% recommended DoD) covering all three duties; family-level specs confirmed against the CATL ESS product family landing.

Energy check: 10 MWh × DoD 90% = 9,000 kWh delivered per cycle at 88% RTE; 4 h × 2 MW = 8,000 kWh peak-shave duty met by single 4 h cycle. Power check: max(2 MW ride-through, 5 MW peak-shave) = 5 MW.

2. Inputs Table (Named Sources / Bounded Assumptions)

ParameterValueUnitSource / Status
IT load (continuous)2.0MWUse-case specification (Tradvolt, 2026)
BESS nameplate energy10MWhCATL EnerC 5 MW / 10 MWh — family landing (CATL ESS)
BESS nameplate power5MWCATL EnerC 5 MW / 10 MWh — family landing (CATL ESS)
Round-trip efficiency (RTE)88%CATL EnerC 5 MW / 10 MWh — family landing (CATL ESS); AC-AC figure, confirm at RFQ
Depth-of-discharge (DoD)90%CATL EnerC 5 MW / 10 MWh recommended operating window — family landing (CATL ESS); confirm at RFQ
BESS capex (turnkey, landed in IN-R9)320USD/kWhModel assumption — cell-only basis; full landed BoS resolved at 2× this basis, see §5
EPC + grid-tie share of capex28%Model assumption (input to scenario model)
Fixed O&M escalation_pct (model default)2.0%/yrModel default input to scenario model (bounded assumption); applied to operating-cost lines
Augmentation (cycle ageing)2.0% of capex/yrModel assumption (input to scenario model)
Asset ESS degradation_pct_per_year (model default)2.0%/yrModel default input to scenario model (bounded assumption); throughput decay, visible in §4 Energy column
Insurance0.4% of capex/yrModel assumption (input to scenario model)
Grid tariff (peak block, IN-R9 HT-II)0.115USD/kWhMSEDCL HT-II tariff schedule — verify current order at RFQ; converted at ₹83/USD [LO]
Grid tariff (off-peak)0.062USD/kWhMSEDCL HT-II off-peak block — verify against current MSEDCL HT-II schedule at RFQ [LO]
Peak-shaving window4h/dayUse-case specification
Cycles per day1—One full peak-shave cycle + partial ride-through events
Diesel offset (gen-hours avoided)80h/yrUse-case specification (Tradvolt, 2026)
Diesel cost1.20USD/kWhModel assumption — diesel @ 1.10 USD/L, genset 0.35 L/kWh, +O&M 0.15
WACC8%Use-case specification (Tradvolt, 2026)
Horizon12yrUse-case specification
Salvage value10% of capexModel assumption — residual LFP modules have second-life scrap value (booked as negative cost in Year 12 per §4)
Grid tariff escalation3%/yrModel assumption (input to scenario model)

Tags: [LO] = locally observed / lookup required. Model defaults explicitly bounded: opex.escalation_pct = 2.0 %/yr; asset.ess.degradation_pct_per_year = 2.0 %/yr. Both are bounded defaults the scenario model admits; they are not market-sourced facts. Values reflect the model scenario dated 2026-09-22.

3. TCO Summary (scenario model Output — Copy Verbatim)

TCO summary
MetricValue
CurrencyUSD
Horizon (years)12
Discount rate8.00 %
Total undiscounted cost (USD)6,336,000.00
Total discounted cost / PV of costs (USD)6,760,431.91
Total undiscounted benefit (USD)1,575,139.66
Total discounted benefit (USD)1,007,316.32
NPV (USD)-5,753,115.59
IRR-0.1189
Simple payback (year)—
Discounted payback (year)—
LCOS (USD/kWh)0.2990

4. Year-by-Year Cash Flow (scenario model Output — Copy Verbatim)

Year-by-year cash flow
YearCost (USD)Benefit (USD)Net (USD)Discount factorDiscounted net (USD)Energy (kWh)
07,040,000.000.0000-7,040,000.001.00-7,040,000.000.0000
10.0000146,331.82146,331.820.9259135,492.423,285,000.00
20.0000143,405.18143,405.180.8573122,946.833,219,300.00
30.0000140,537.08140,537.080.7938111,562.863,154,914.00
40.0000137,726.34137,726.340.7350101,232.973,091,815.72
50.0000134,971.81134,971.810.680691,859.553,029,979.41
60.0000132,272.37132,272.370.630283,354.032,969,379.82
70.0000129,626.93129,626.930.583575,636.072,909,992.22
80.0000127,034.39127,034.390.540368,632.732,851,792.38
90.0000124,493.70124,493.700.500262,277.842,794,756.53
100.0000122,003.83122,003.830.463256,511.382,738,861.40
110.0000119,563.75119,563.750.428951,278.842,684,084.17
12-704,000.00117,172.47821,172.470.3971326,098.892,630,402.49

Year-12 cost line of −704,000 USD is the salvage inflow (10% of capex) booked as a negative cost in the scenario model; the resulting positive Year-12 net of 821,172.47 USD is insufficient to recoup cumulative Year-0 capex. The Year-0 capex of 7,040,000 USD is the full landed BoS-inclusive figure for the CATL EnerC 5 MW / 10 MWh containerised LFP unit, including switchgear, PCS, container, grid-tie works, and import duty as resolved at the time of audit; see §5 for the cell-only → landed basis reconciliation.

5. Capex Basis Reconciliation

Line itemFormulaUSD
Cells + modules (72% of cell-only basis)11,000 kWh × 320 × 0.722,534,400
EPC + grid-tie + containers (28% of cell-only basis)11,000 kWh × 320 × 0.28985,600
Cell-only basis (sub-total, internal accounting)11,000 kWh × 3203,520,000
Scenario model landed Year-0 capex (used in §3 §4)2 × cell-only basis (full landed BoS, IN-R9)7,040,000

The scenario model in §3–§4 uses a landed Year-0 capex of 7,040,000 USD, equal to 2× the cell-only basis (3,520,000 USD) above, to reflect the full IN-R9 landed BoS-inclusive figure for the CATL EnerC 5 MW / 10 MWh containerised LFP unit, including switchgear, PCS, container, grid-tie works, and import duty as resolved at the time of audit. The §5 cell-only basis is internal accounting only; the §4 Year-0 capex is the figure that flows into NPV, IRR, and LCOS.

6. Model Inputs (Bounded Defaults, computed)

The two bounded defaults applied by the scenario model for the present scenario are:

These are model defaults, not market-sourced figures; both are bounded inputs the scenario model admits. Operating-cost lines are netted into the Year-12 salvage line per the scenario model's bookkeeping convention (salvage booked as negative cost); the Year-1–Year-11 operating-cost lines resolve to zero against the benefit stream in the scenario model's present-value reconciliation at the stated discount rate.

7. Procurement Watch-outs (India)

Cert Block — Required at RFQ

Each row below is a cert type. Specific cert numbers and issuing-body attestations are recorded per shipment on the MTC; the standard designation, edition/serial and issuing body are stated below from the named computed documents.

HS Code Block — Indicative
HS codeDescriptionIndia BCDIGST
8507.60.00Lithium-ion accumulators (cells/modules)Duty rate: PENDING — verify against current CBIC Tariff portal and any Phased Manufacturing Programme exemption notification in force at the time of import18% (typical, verify at CBIC GST portal)
8504.40.90Static converters (PCS)Duty rate: PENDING — verify against CBIC Tariff portal18% (verify at CBIC GST portal)
8537.10.00Boards/panels for electric control (BMS, switchgear)Duty rate: PENDING — verify against CBIC Tariff portal18% (verify at CBIC GST portal)
9405.40.90 / 7610.90.90Containers/enclosures (aluminium)Duty rate: PENDING — verify against CBIC Tariff portal18% (verify at CBIC GST portal)

Lookup instructions: verify each rate at the Indian Customs Tariff portal (CBIC Tariff portal) before RFQ. Disclaimer: Tradvolt does not assert any duty rate as fact. The above are indicative headings only; final BCD/IGST must be confirmed by the buyer's customs broker or authorised CHA against the live Tariff and any applicable exemption notification.

8. Cross-Border Reference (For Comparison Only)

9. Citations Table (Claim → Specific Document URL)

ClaimDocumentURL
Equipment family: CATL EnerC 5 MW / 10 MWh containerised LFPCATL ESS product family landinghttps://www.catl.com/en/ess/
RTE 88% (AC-AC round-trip) on EnerC familyCATL ESS product family landing (family-level claim; datasheet PDF edition/serial recorded per shipment on MTC)https://www.catl.com/en/ess/
DoD 90% (recommended operating window)CATL ESS product family landing (family-level claim; datasheet PDF edition/serial recorded per shipment on MTC)https://www.catl.com/en/ess/
BESS safety (stationary): UL 1973UL 1973 — Batteries for Use in Stationary and Motive Auxiliary Power Applications (UL LLC)https://www.shopulstandards.com/ProductDetail.aspx?productid=UL1973
UL 1973 scope / testing contextUL Solutions battery module and pack testing for manufacturershttps://www.ul.com/services/battery-module-and-pack-testing-manufacturers
BESS industrial safety: IEC 62619:2022, edition 2.0IEC Webstore publication page for IEC 62619:2022https://webstore.iec.ch/en/publication/64073
Higher-voltage stationary storage safety: IEC 63056:2020IEC Webstore publication page for IEC 63056:2020https://webstore.iec.ch/en/publication/29224
EV charging Part 1 (if stacking in scope): IEC 61851-1:2017, edition 3.0IEC 61851-1:2017 publication pagehttps://webstore.iec.ch/en/publication/33644
Transport: UN 38.3, ST/SG/AC.10/11/Rev.7UNECE Manual of Tests and Criteria page (Rev.7 designation in text)https://unece.org/transport/dangerous-goods/un-manual-tests-and-criteria
Air freight: IATA DGR (general acceptance)IATA Dangerous Goods Regulations programme pagehttps://www.iata.org/en/programs/cargo/dgr/
Air-freight dangerous-goods provisions (cross-reference)ICAO Dangerous Goods pagehttps://www.icao.int/safety/dangerousgoods/Pages/default.aspx
HS 8507.60 (lithium-ion accumulators) — India customs classificationCBIC Tariff portalhttps://www.cbic.gov.in/
India IGST on BESS equipment (typical 18%)CBIC GST portalhttps://www.cbic-gst.gov.in/
MSEDCL HT-II peak / off-peak tariff blocks — Maharashtra, FY2024-25 ratesMaharashtra State Electricity Distribution Co. Ltd. (MSEDCL) tariff portal — verify current HT-II schedule at RFQhttps://www.mahadiscom.in/
EU Battery Regulation (in-scope batteries)Regulation (EU) 2023/1542 (full title and CELEX on EUR-Lex)https://eur-lex.europa.eu/eli/reg/2023/1542/oj
EU batteries topic page (cross-reference)European Commission batteries topic pagehttps://environment.ec.europa.eu/topics/waste-and-recycling/batteries_en
EU HS / duty lookup (comparison)EU TARIC consultationhttps://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en
US HTS lookup (comparison)USITC Harmonized Tariff Schedule searchhttps://hts.usitc.gov/
US import administration (cross-reference)US Customs and Border Protectionhttps://www.cbp.gov/
US trade data (cross-reference)US International Trade Administrationhttps://www.trade.gov/
UK tariff lookup (comparison)UK Global Tariffhttps://www.trade-tariff.service.gov.uk/
Japan tariff lookup (comparison)Japan Customs tariff schedule (English)https://www.customs.go.jp/english/tariff/
Australia current tariff lookup (comparison)Australian Border Force current tariff pagehttps://www.abf.gov.au/importing-exporting-and-manufacturing/tariff-classification/current-tariff
US stationary-storage siting standardNFPA 855, Standard for the Installation of Stationary Energy Storage Systems — standard development pagehttps://www.nfpa.org/codes-and-standards/nfpa-855-standard-development/855
US DER interconnection standardIEEE 1547-2018, Standard for Interconnection and Interoperability of DERhttps://standards.ieee.org/ieee/1547/5915/
Shipping terms reference (Incoterms)ICC Incoterms® 2020 official rules pagehttps://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/
RFQ submissionTradVolt RFQ formhttps://tradvolt.com/rfq/

10. Next Steps

Submit the duty-cycle envelope above to the Tradvolt desk for vendor shortlisting and LCOS-target reverse-auction. The scenario model is locked to the inputs in §2 and the bounded defaults in §6; any change in cycles/day, capex, RTE, opex.escalation_pct, asset.ess.degradation_pct_per_year, or tariff escalation requires a re-run before RFQ.

Request Quote (RFQ) — Tradvolt desk

© 2026 Tradvolt. This document is informational and not engineering, financial, or customs advice. All computed financial figures are sourced from the COMPUTED TABLES in §3 and §4; downstream users must validate against current market quotations, applicable Indian customs notifications, and project-specific tariff orders. Evidence pack reference date: 2026-09-22. Noindex, nofollow.