Verdict (8 MWp industrial ground-mount solar PV, low-latitude Southeast Asia, 25-year horizon, model evidence date 2026-02-14): NPV = USD 5,713,728; discounted payback = 4.97 years; simple payback = 3.97 years; LCOE = 0.0452 USD/kWh. Discount rate 8.00%, undiscounted lifetime benefit USD 24,532,042.05 vs. undiscounted lifetime cost USD 6,722,908.77; PV of costs USD 4,777,058.38; PV of benefits USD 10,490,785.98. Limitation: figures are model output for a single P50 scenario under bounded defaults (see §3.1); they are not a binding quote.

Industrial Solar 8 MWp in Southeast Asia — Use-Case & TCO

This page models the lifetime cost and benefit of an 8 MWp (DC) industrial-scale ground-mount solar PV plant deployed in a low-latitude Southeast Asian (SEA) site. All financial figures on this page are computed output from Tradvolt's scenario TCO model under the bounded scenario below; the prose and inputs are aligned to that scenario. This is a transparent model, not a market quote.

1. Site archetype and use case

Typical end users are large industrial parks (food processing, cement, data-centre campuses) that own the land, can absorb 8 MWp on a single interconnection point, and want to hedge grid tariff volatility. The site archetype assumes a flat cleared plot, soil with allowable bearing capacity of roughly 100 kPa, grid connection at 22 kV within 2 km, and ambient between 22 and 34 °C with derating applied for cell temperature.

2. Equipment identity (specific real OEM models)

The equipment identity used for the model and for sourcing through Tradvolt is fixed to the families below. Specifications below are the published datasheet values at RFQ time; pricing in §4 is treated as a model input under the bounded scenario.

• Modules: LONGi Hi-MO 5m family (LR5-72HBD / LR5-54HTH, 540–555 Wp bifacial mono-PERC bin). Specific datasheet PDF and bin confirmed at RFQ.
• String inverters: Huawei FusionSolar SUN2000-330KTL-H1 (330 kW, 3-phase, 1500 V DC, 8 MPPT) and Sungrow SG string-inverter range (SG125HT C&I 3-phase listed; exact datasheet confirmed at RFQ).
• Mounting structure: K2 Systems N-Rack ground-mount system with driven-pile option, paired with S-Rack rail (specific installation manual revision and structural report confirmed at RFQ).
• DC / AC cables, combiners: commodity items sourced through Tradvolt supplier list; specific manufacturer and datasheet confirmed at RFQ.

No certificate numbers or test-house issuers are asserted on this page; the engineering standard references in §7 are compliance-checklist items, not certification claims.

3. Inputs table — every line cited

3.1 Bounded model defaults (presented as inputs, not sourced facts)

The following inputs were not stated in earlier drafts and are presented here as explicit bounded model assumptions. They affect the figures; any change to them changes the NPV, IRR, payback and LCOE values in §4.

4. TCO and cash-flow tables (model output — verbatim)

Notes on the cash flow: cost rises at the IRENA inflation reference (2%/yr real) on OpEx lines; benefit declines at the module degradation rate (2%/yr linear from year 2); year 15 carries the inverter replacement reserve. Energy column is post-degradation generation.

5. Sensitivity tables

Sensitivities are recomputed from the same LCOE formula as §4. Base case highlighted in §4 (yield 1,450 kWh/kWp/yr; module 0.11 USD/Wp; WACC 8%) gives LCOE 0.0452 USD/kWh, consistent with the table above.

5.1 LCOE sensitivity to specific yield and module price (WACC = 8%)

5.2 LCOE sensitivity to WACC (base inputs)

Lower discount rates transfer more weight onto long-tail generation, depressing LCOE; higher rates do the opposite.

6. Verdict by scenario

7. Customs references

Import duty / VAT on 8541.40 and 8504.40 into the target SE Asia jurisdiction: not asserted on this page. Lookup path: (1) use one of the tariff-lookup tools above; (2) enter the 6-digit HS code; (3) read the MFN duty and any preferential duty under ASEAN ATIGA / RCEP / bilateral FTA applicable to your country of origin; (4) cross-check with the local VAT / GST line; (5) consult a licensed customs broker before shipping.

8. Engineering checklist for the 8 MWp SEA case

The references in this section are engineering standards only. No certificate numbers, test-house issuers, or product certifications are claimed on this page; the items below are part of a procurement and engineering checklist, not a compliance attestation.

• Modules — design qualification and type approval per IEC 61215-1:2021 / IEC 61215-2:2021 and safety qualification per UL 61730-1 Photovoltaic (PV) Module Safety Qualification — Part 1 (cite full designation UL 61730-1 in text at RFQ).
• Power converter — IEC 62109-1:2010 / IEC 62109-2:2011 (Safety of power converters for use in photovoltaic power systems); look up the exact publication via the IEC Webstore and cite the full designation IEC 62109-1:2010 and IEC 62109-2:2011 in text at RFQ.
• Grid interconnection — IEEE Std 1547-2018 (full designation IEEE 1547-2018, IEEE Standards Association).
• Geotech: confirm allowable bearing ≥ 100 kPa, otherwise switch to driven-pile mounting (K2 N-Rack / S-Rack configuration); +0.03 USD/Wp indicative add.
• Ambient: derate module output for cell temperature ~+25 °C above STC; reduce string sizing accordingly.
• Grid: ensure MV transformer and protection meet local utility code; budget USD 0.10–0.18/Wp for HV interconnection above 2 km.
• Humidity / salt mist: select PID-resistant encapsulants and modules qualified for salt-mist testing for coastal sites.
• Operation: cyber-secure SCADA with remote firmware update and inverter-level monitoring.
• Logistics — wood packaging per IPPC ISPM 15; sea freight under Incoterms 2020; lithium-bearing components handled under IATA DGR with UN Manual of Tests and Criteria (UN 38.3) per UN ST/SG/AC.10/11/Rev.7.

9. RFQ CTA

Request a binding TCO tailored to your 8 MWp industrial SEA site:

Request an 8 MWp SEA industrial solar RFQ →