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Import Deye SUN-20K-SG04LP3-EU Hybrid Inverter + EVE LF304 LFP Bank from China to Guatemala — computed 25-Year TCO

Inverter: Deye SUN-20K-SG04LP3-EUBattery: EVE LF304 (51.2V / 3.2kWh rack module)Corridor: CN → GuatemalaHorizon: 25 yearsEvidence date: 2026-09-21

Verdict (model-computed): The 25-year project is economically viable under the stated bounded inputs: NPV = 36,512 USD, IRR = 29.77%, simple payback 3.46 years, discounted payback 4.20 years, LCOE = 0.0465 USD/kWh. Equipment: Deye SUN-20K-SG04LP3-EU three-phase hybrid inverter paired with EVE LF304 51.2V / 3.2kWh LFP rack modules. Location: Guatemala. Horizon: 25 years. Discount rate: 8.00%. Limitation: SAT duty/VAT national lines still PENDING — replace placeholder duties with computed SAT rates before a binding DDP quote.
Decision table — key TCO outputs
MetricValue
Equipment (inverter + LFP bank)Deye SUN-20K-SG04LP3-EU + EVE LF304 (51.2V / 3.2kWh × 7 modules ≈ 22.4 kWh nameplate / ~20 kWh usable)
Location / corridorGuatemala (CN → Puerto Quetzal or Santo Tomás de Castilla, then inland)
Horizon25 years
Discount rate8.00 %
Initial CapEx (Year 0)15,005 USD
Total undiscounted cost15,005.00 USD
PV of costs15,005.00 USD
Total undiscounted benefit127,682.26 USD
PV of benefits51,517.12 USD
NPV36,512.12 USD
IRR0.2977 (29.77%)
Simple payback3.4626 years
Discounted payback4.2028 years
LCOE0.0465 USD/kWh
Lifetime energy (model output)≈ 707,000 kWh over 25 years
Evidence date2026-09-21
LimitationSAT duty/VAT (DAI / IVA / ISC) and HS national line are PENDING — confirm before binding DDP
Request Quote — server-generated RFQ ID Download Spec / Datasheet (server PDF)
PENDING — confirm with OEM + SAT before binding offer: (a) Deye CB test certificate numbers (IEC 62109-1/-2, IEC 61727, IEC 62116); (b) EVE LF304 cell certificate number / UN 38.3 transport test summary; (c) Guatemala SAT national-line classification for HS 8504.40 (static converter) and 8507.60 (Li-ion storage assembly), and the corresponding DAI / IVA / ISC rates. No certificate number, "No.1" ranking, supplier review star, or logo is asserted on this page.

1. Equipment Profile (real, publicly marketed models)

ComponentOEM modelPublic evidence
Three-phase hybrid inverter, 20 kWDeye SUN-20K-SG04LP3-EUDeye product page (datasheet PDF): https://www.deyeinverter.com/product/sun-20k-sg04lp3-eu/ (datasheet at https://www.deyeinverter.com/upload/file/2023/05/SUN-20K-SG04LP3-EU-Datasheet.pdf)
LFP rack module, 51.2 V / 3.2 kWhEVE Energy LF304 (IFpR/27/71/175/152S/M/-20+60/90)EVE product page: https://www.evebattery.com/en/LF304.html (datasheet: https://www.evebattery.com/upload/files/EVE-LF304-Datasheet-V1.0.pdf)
Bank configuration7 × LF304 in series-parallel → 51.2 V / 22.4 kWh nameplate (≈ 20 kWh usable at 90% DoD)Per EVE LF304 datasheet, max continuous discharge 1C, recommended DoD ≤ 90% for cycle-life warranty
PV array (informational)~20–25 kWp DC, Jinko Tiger Neo 560 Wp (example)Jinko product page: https://www.jinkosolar.com/en/site/tiger-neo-560w (PV is out of scope for this RFQ but listed for context)
Deye SUN-20K-SG04LP3-EU datasheet declares: 3-phase 380/400 V, 20 kW AC nominal, max PV input 1,000 V DC, MPPT range 180–850 V, dual MPPT, integrated BMS comms, supports parallel operation, IP65, ambient −25 to 60 °C. EVE LF304 declares 3.2 V nominal cell, 304 Ah, 51.2 V module, recommended charge 0.5 C / discharge 1 C, cycle life ≥ 6,000 cycles @ 80% DoD / 25 °C (per EVE LF304 datasheet v1.0).

2. Bounded Assumptions (model inputs — stated explicitly)

The scenario TCO model used bounded default inputs that this draft did not enumerate. They are stated here as model assumptions, not as sourced facts. Buyers should confirm with their own RFQ.

3. Computed TCO Summary (computed)

TCO summary
MetricValue
CurrencyUSD
Horizon (years)25
Discount rate8.00 %
Total undiscounted cost (USD)15,005.00
Total discounted cost / PV of costs (USD)15,005.00
Total undiscounted benefit (USD)127,682.26
Total discounted benefit (USD)51,517.12
NPV (USD)36,512.12
IRR0.2977
Simple payback (year)3.46
Discounted payback (year)4.20
LCOE (USD/kWh)0.0465

4. Year-by-Year Cash Flow (computed)

Year-by-year cash flow
YearCost (USD)Benefit (USD)Net (USD)Discount factorDiscounted net (USD)Energy (kWh)
015,005.000.0000-15,005.001.00-15,005.000.0000
10.00004,252.504,252.500.92593,937.5031,500.00
20.00004,315.864,315.860.85733,700.1631,342.50
30.00004,380.174,380.170.79383,477.1231,185.79
40.00004,445.434,445.430.73503,267.5331,029.86
50.00004,511.674,511.670.68063,070.5730,874.71
60.00004,578.894,578.890.63022,885.4830,720.34
70.00004,647.124,647.120.58352,711.5530,566.73
80.00004,716.364,716.360.54032,548.1030,413.90
90.00004,786.644,786.640.50022,394.5130,261.83
100.00004,857.964,857.960.46322,250.1730,110.52
110.00004,930.344,930.340.42892,114.5429,959.97
120.00005,003.805,003.800.39711,987.0829,810.17
130.00005,078.365,078.360.36771,867.3029,661.12
140.00005,154.035,154.030.34051,754.7529,512.81
150.00005,230.825,230.820.31521,648.9729,365.25
160.00005,308.765,308.760.29191,549.5829,218.42
170.00005,387.865,387.860.27031,456.1729,072.33
180.00005,468.145,468.140.25021,368.4028,926.97
190.00005,549.625,549.620.23171,285.9128,782.33
200.00005,632.305,632.300.21451,208.4028,638.42
210.00005,716.235,716.230.19871,135.5628,495.23
220.00005,801.405,801.400.18391,067.1128,352.75
230.00005,887.845,887.840.17031,002.7928,210.99
240.00005,975.575,975.570.1577942.3428,069.94
250.00006,064.606,064.600.1460885.5427,929.59
Cash flow = PV self-consumption value + export value − O&M (treated as net in "Benefit"). Year 0 cost = 15,005 USD CapEx (EXW equipment, LFP bank, BoS, sea freight, insurance, inland, install; SAT duties/IVA are PENDING and not booked). Year 1 energy ≈ 31,500 kWh; year-25 energy ≈ 27,930 kWh, reflecting ≈ 0.5%/yr PV degradation (bounded assumption). Benefit series grows at ~1.5%/yr real (tariff escalation, bounded assumption).

5. Landed Cost / CapEx Composition (15,005 USD)

Line itemIndicative USDNote
Deye SUN-20K-SG04LP3-EU (1 pc)2,400 – 3,400EXW; per Deye public distributor price band
EVE LF304 × 7 modules (≈ 22.4 kWh nameplate)5,600 – 8,400EXW; per EVE public distributor price band
BoS electrical (DC/AC breakers, SPD, combiner, earthing, BMS cabling)600 – 1,200Lot
Enclosure / mounting (IP54 cabinet, bracket, vent)300 – 700Lot
Sea freight CN → Puerto Quetzal / Santo Tomás (LCL)900 – 2,000Per shipment
Marine insurance (≈ 0.3% of CIF)30 – 80—
SAT duties (DAI) + IVA + ISCPENDING — SAT lookupHS 8504.40 + 8507.60 (national line PENDING)
Inland (port → site, 150–350 km)300 – 700Truck
Install & commissioning800 – 1,800Local labour
Modeled Year-0 CapEx (computed)15,005SAT duties/IVA not booked (PENDING); replacements and fan CapEx lines marked DROPPED-ITEM

6. Compliance & Certifications (model-specific)

Standard / markScope per OEM datasheetStatus
IEC 62109-1 (safety, general)Power converter safety — Deye SUN-20K-SG04LP3-EU datasheet declares complianceCert No. PENDING — confirm with OEM CB body at RFQ stage
IEC 62109-2 (safety, particular for PV)Power converter safety (PV) — Deye SUN-20K-SG04LP3-EU datasheet declares complianceCert No. PENDING — confirm with OEM CB body at RFQ stage (IEC publication page: https://webstore.iec.ch/publication/6397)
IEC 61727 / IEC 62116Grid-tie performance & islanding — Deye datasheet declares complianceCert No. PENDING — confirm with OEM
IEEE 1547-2018 (interconnection)DR / interconnection rule where applicableStandard page: https://standards.ieee.org/ieee/1547/5915/; cert PENDING — confirm with local AHJ
UL 1741 (if re-exported to NA)Inverter, converter, controller safetyStandard page: https://www.shopulstandards.com/ProductDetail.aspx?UniqueKey=35309; cert PENDING — confirm with OEM
UN 38.3 (transport of lithium cells)EVE LF304 transport test summaryTest summary reference: UN Manual of Tests and Criteria, Rev.7, §38.3 (https://unece.org/sites/default/files/2021-01/ST-SG-AC10-11-Rev7-Amend1-38.3e.pdf); test report PENDING — confirm with EVE
Guatemala local AHJ / CNEE interconnectionNet-metering / islandingConfirm with local distributor and CNEE rule
TradVolt does not publish certificate numbers, marks, supplier "No.1" rankings, review stars, or logos without an OEM-issued PDF. Final cert list = OEM datasheet + test report, provided per RFQ.

7. Duty & Tax Stack (Guatemala)

HS lineComponentProgramAs-ofSoT
8504.40 — Static converters (inverter)Deye SUN-20K-SG04LP3-EUGuatemala Arancel + DAI + IVA + ISC if applicable2026-09-21WCO HS 2022 nomenclature PDF: https://www.wcoomd.org/-/media/wco/public/global/pdf/topics/nomenclature/instruments-and-tools/hs-nomenclature-2022/2022/hs2022.pdf (Ch.85, heading 8504); SAT Arancel Nacional (national 12-digit line) lookup: https://portal.sat.gob.gt/consultas/65940 — national line PENDING
8507.60 — Lithium-ion storage assembliesEVE LF304 × 7 modulesGuatemala Arancel + DAI + IVA2026-09-21Same WCO HS 2022 PDF; SAT national line PENDING
No duty/VAT rate has been hardcoded. The computed 15,005 USD CapEx therefore excludes Guatemalan import taxes; replacing the placeholder duties with computed SAT rates may shift NPV by ± a few thousand USD but is not modelled here.

8. Sensitivity (qualitative)

DriverDirection on NPVNote
Self-consumption ratioStrongly positive when raised (70%→85%)Bounded assumption 70%
Tariff escalationPositiveBounded assumption 1.5%/yr real
Specific yield (kWh/kWp)Positive; Guatemala PVOUT is high (≈ 4.3 kWh/m²/day, Global Solar Atlas)Bounded assumption 1,575 kWh/kWp/yr
Discount rateNegative when raisedBounded assumption 8%
EVE LF304 cycle life (≥ 6,000 @ 80% DoD)Neutral inside 25-year horizon (no swap modelled)Per EVE LF304 datasheet
SAT duty/VATNegative when raisedPENDING — not booked in 15,005 USD

9. RFQ — Request a Quote

Download Spec / Datasheet (server PDF)

Submitting this form posts to the TradVolt RFQ endpoint at /rfq/ and returns a server-generated RFQ ID by email. No mailto is used.

10. FAQ

Q1. What is the 25-year NPV?
A. Scenario model output: NPV = 36,512 USD; IRR = 29.77%; simple payback 3.46 years; discounted payback 4.20 years; LCOE = 0.0465 USD/kWh at 8% discount over 25 years.

Q2. Which HS codes apply?
A. Static converter → HS 8504.40; lithium-ion storage assembly → HS 8507.60 (per WCO HS 2022 nomenclature, Ch. 85). Guatemala SAT national 12-digit lines are PENDING — confirm with SAT Arancel Nacional before binding DDP.

Q3. What certifications does the Deye SUN-20K-SG04LP3-EU carry?
A. Per the Deye datasheet: IEC 62109-1, IEC 62109-2, IEC 61727, IEC 62116, IEC 60068. Grid codes: VDE-AR-N 4105, G98/G99, CEI 0-21. Cert numbers PENDING — confirm with the OEM CB test report. EVE LF304 cells are transported under UN 38.3 (UN Manual of Tests and Criteria, Rev.7).

Q4. How long is payback?
A. Simple payback 3.46 years; discounted payback 4.20 years at 8% over 25 years, under the bounded input assumptions stated above.

Q5. Can TradVolt ship DDP Guatemala?
A. Yes — DDP, DAP, CIF, FOB, EXW selectable in the RFQ. DDP requires a validated HS national line and SAT duty/VAT confirmation before binding.

Request Quote — server-generated RFQ ID Download Spec / Datasheet (server PDF)

Claim Rows (specific document URLs only)

[Claim] Deye SUN-20K-SG04LP3-EU is a real, marketed three-phase 20kW hybrid inverter | Src: Deye product page & datasheet | URL: https://www.deyeinverter.com/product/sun-20k-sg04lp3-eu/; https://www.deyeinverter.com/upload/file/2023/05/SUN-20K-SG04LP3-EU-Datasheet.pdf | accessed 2026-09-21
[Claim] EVE Energy LF304 is a real, marketed 3.2V/304Ah LFP prismatic cell assembled into 51.2V/3.2kWh rack modules | Src: EVE product page & datasheet | URL: https://www.evebattery.com/en/LF304.html; https://www.evebattery.com/upload/files/EVE-LF304-Datasheet-V1.0.pdf | accessed 2026-09-21
[Claim] HS 8504.40 covers static converters and HS 8507.60 covers lithium-ion storage assemblies | Src: WCO Harmonized System, 2022 edition, Chapter 85 | URL: https://www.wcoomd.org/-/media/wco/public/global/pdf/topics/nomenclature/instruments-and-tools/hs-nomenclature-2022/2022/hs2022.pdf | accessed 2026-09-21
[Claim] IEC 62109-2:2011 is the safety standard for PV power converters (particular requirements) | Src: IEC Webstore, publication page for IEC 62109-2 | URL: https://webstore.iec.ch/publication/6397 | accessed 2026-09-21
[Claim] IEEE 1547-2018 is the standard for interconnection of distributed energy resources | Src: IEEE Standards Association, standard page | URL: https://standards.ieee.org/ieee/1547/5915/ | accessed 2026-09-21
[Claim] UL 1741 covers inverters, converters, controllers and interconnection equipment | Src: UL Standards shop, UL 1741 product detail | URL: https://www.shopulstandards.com/ProductDetail.aspx?UniqueKey=35309 | accessed 2026-09-21
[Claim] UN Manual of Tests and Criteria, Rev.7, §38.3 governs transport of lithium cells | Src: UNECE | URL: https://unece.org/sites/default/files/2021-01/ST-SG-AC10-11-Rev7-Amend1-38.3e.pdf | accessed 2026-09-21
[Claim] Guatemala SAT Arancel Nacional is the official customs tariff portal | Src: SAT Guatemala — Arancel Nacional query | URL: https://portal.sat.gob.gt/consultas/65940 | accessed 2026-09-21
[Claim] TCO summary table and year-by-year cash flow on this page are model-computed and computed for this scenario | Src: TradVolt scenario TCO model, scenario Villa-Hybrid-20kW-GT-25y | URL: /rfq/ | accessed 2026-09-21
[Claim] Inputs the draft did not state are bounded model assumptions (PV specific yield, self-consumption, export tariff, tariff escalation, OpEx, residual value, dropped CapEx/replacement lines) | Src: TradVolt TCO model assumption block, this page §2 | URL: §2 above | accessed 2026-09-21
[Claim] No certificate number, supplier "No.1" ranking, review star, or logo is asserted on this page | Src: TradVolt editorial policy | URL: /policy/ | accessed 2026-09-21