How a JAKIM-certified Shah Alam food manufacturer combined Huawei SUN2000 and Sungrow SBH battery storage to achieve Scope 2 carbon reporting for European and Middle Eastern export buyers
tCO₂ offset annually
“Our EU buyer's sustainability team gave us a formal notice in late 2025: from 2026, suppliers must provide auditable Scope 2 renewable energy data or face a sourcing review. We had twelve months. Trexon delivered the system, the ATAP grid connection, and the FusionSolar ESG reporting package within that window. Our CFO signed off on the project not just because of the RM 380k annual savings — it is genuinely good — but because the alternative was losing a contract worth RM 12 million a year. JAKIM's auditors reviewed the FusionSolar installation report and confirmed it has no impact on our halal traceability documentation. That was the question we were most anxious about.”
The European Union's Carbon Border Adjustment Mechanism (CBAM) — implemented for direct product categories from 2026 — has sent a ripple effect far beyond the industries explicitly covered in its initial phase. European food and beverage importers, responding to investor pressure and their own ESG reporting requirements under the EU Taxonomy for Sustainable Finance, began inserting Scope 2 renewable energy disclosure requirements into supplier contracts ahead of any regulatory mandate.
For this Tier-1 halal-certified food manufacturer in Shah Alam — producing a range of processed food products, sauces, and ready-to-eat items exported across twelve countries including the UK, Germany, and the UAE — the signal arrived as a formal supplier notice from its largest EU buyer in October 2025. The notice set a clear threshold: suppliers without auditable Scope 2 renewable energy data by Q1 2026 would be subject to a sourcing review. The manufacturer's export revenue from this single buyer was approximately RM 12 million per year.
The commercial calculus was immediate. The CFO convened a capital expenditure review in November 2025. By December, Trexon had been appointed.
The facility operates three production lines on a 24/7 schedule with two shift rotations. The load profile is dominated by three high-energy processes:
Total facility monthly consumption: 1,950,000–2,100,000 kWh. Average monthly TNB bill: RM 145,000 under the E2 medium-voltage tariff. Maximum Demand registration: 2,400–2,600 kW/month, contributing RM 36,000–39,000/month in MD charges.
The IQF compressors were identified as the primary opportunity for ESS integration: IQF compressor rack starts — which occur 3–5 times per shift as lines move between products — each draw 180–220 kW for 4–6 minutes above the continuous load, producing MD spikes that inflate the monthly charge without representing sustained demand.
Solar Array: 1,390 × Trina Vertex N 576W Bifacial
1,390 units of Trina Solar Vertex N 576W bifacial N-type monocrystalline panels were installed across two factory rooftops: the main production block (1,050 panels, 10,200 m², flat concrete roof with ballasted racking) and the warehouse and despatch block (340 panels, 3,300 m², metal deck roof with low-penetration rail mounts). Total installed DC capacity: 800 kWp.
The Vertex N 576W N-type was specified over conventional PERC alternatives for its superior performance at elevated ambient temperatures — relevant for a metal-deck factory roof in Shah Alam, where mid-day roof surface temperatures routinely exceed 65°C. N-type cells maintain a lower temperature coefficient (typically -0.29%/°C versus PERC's -0.34–0.36%/°C), translating to 5–8% additional yield during peak Malaysian afternoon hours compared with equivalent-rated PERC panels.
Eight Huawei SUN2000-100KTL-M2 string inverters (100 kW each, 800 kW total AC) were installed in two inverter rooms — one per rooftop block — with dedicated cable containment routes through the factory's existing cable management infrastructure.
Battery Storage: 2 × Sungrow SBH250 (600 kWh)
Two Sungrow SBH250 battery energy storage units (300 kWh each, lithium iron phosphate chemistry) were installed in a purpose-built battery room adjacent to the main electrical panel. The SBH250 was selected for three reasons specific to the halal manufacturing context:
First, LFP chemistry is the preferred option for food-adjacent industrial environments due to its thermal stability — the absence of thermal runaway risk that characterises some NMC battery chemistries is relevant to JAKIM's fire safety review of the installation site.
Second, the SBH250's modular design allows capacity to be expanded in future phases. The manufacturer's production expansion plan includes two additional IQF lines from 2027, which will increase MD by an estimated 400 kW; the battery room was sized during this installation to accommodate four additional SBH250 units.
Third, Sungrow's ESS monitoring platform integrates with Huawei FusionSolar via Modbus TCP, allowing unified generation and storage data to be reported in a single dashboard — the format most readily accepted by EU buyers' sustainability teams.
The ESS operates on an MD-shaving schedule: charge from 09:00 to 14:00 (solar peak) and discharge during the two highest MD-risk windows — the 07:00–09:00 morning production ramp-up and the 19:00–21:00 evening peak shift transition. This schedule is reviewed monthly by the energy manager using FusionSolar's demand-response analytics module.
JAKIM's halal certification requirements for food manufacturers focus on ingredient sourcing, production process segregation, and equipment sanitation protocols. There is no explicit restriction on renewable energy installations — however, the manufacturer's JAKIM-accredited internal halal committee had flagged a practical question: would the solar installation require any new third-party contractors to access production areas, and if so, what were the implications for the facility's controlled-access halal production zone protocols?
Trexon addressed this directly in the project risk register. All inverter and battery room installations are in non-production areas (mechanical plant rooms and the dedicated battery room outside the production perimeter). No solar or electrical contractors required entry to the halal production zones at any point during installation. The FusionSolar monitoring system operates on the facility's existing IT network via a separate VLAN with no connection to the production-area OT network.
Trexon prepared a written installation methodology statement for the JAKIM-accredited halal committee, confirming these protocols. The committee reviewed and accepted the statement, confirming no impact on the facility's halal certification status — a confirmation the CFO described as "the question we were most anxious about, answered definitively in writing."
The system was filed under Malaysia's ATAP programme (GP/ST/No.60/2025) as an E2-tariff NEM 3.0 commercial-industrial grid-tied system. At 800 kWp, the system is below the Large Scale Solar connection threshold and was processed under the standard NEM 3.0 commercial track. Grid-energisation was achieved in March 2026, within five months of contract signing — notably ahead of the manufacturer's Q1 2026 EU reporting deadline.
The facility's 24/7 load profile means net export to TNB is minimal: self-consumption over the first two months of operation averaged 94.1%, with the remaining 5.9% exported at ATAP's Displaced Cost rate during low-demand weekend nighttime hours.
Within 30 days of commissioning, Trexon provided the manufacturer with:
The manufacturer's sustainability manager submitted this package to the EU buyer's supplier portal on 28 March 2026 — three days before the Q1 deadline. The EU buyer accepted the documentation as qualifying Scope 2 renewable energy evidence under its 2026 Supplier Sustainability Programme.
The manufacturer's preferred supplier status was renewed for the 2026–2028 contract cycle. The CFO confirmed that Trexon's ability to package the technical and ESG documentation in a buyer-ready format — rather than delivering raw monitoring data for the internal team to interpret — was a material factor in the project's on-time delivery.
Generation performance: Average monthly generation: 92,600 kWh — a specific yield of 1,389 kWh/kWp/year, consistent with Shah Alam's irradiance profile.
Savings breakdown: Average monthly TNB bill reduction: RM 31,700: - Energy consumption savings: RM 25,100/month (92,600 kWh × blended E2 consumption rate) - MD charge reduction: RM 6,600/month (IQF compressor start ESS discharge reducing MD registration from 2,520 kW average to 2,300 kW average, a 220 kW reduction at RM 30.00/kW E2 MD rate)
Projected annual savings: RM 380,400. System installed cost: approximately RM 1.87 million. Simple payback: 4.9 years.
Environmental performance: The system displaces approximately 1,105 tonnes of CO₂ equivalent per year — the figure now cited in the manufacturer's annual sustainability disclosure to all export buyers.
Note: Financial figures represent indicative modelling based on Trexon installation data and TNB E2 tariff schedules. Client details are anonymised per B2B confidentiality.
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