Net-Zero for industrial manufacturers in Vietnam — LEAN-TES

NET-ZERO ROADMAP • MAY 2026

Where is your plant on the Net-Zero map?

Vietnam has committed to Net-Zero by 2050. The EU CBAM enters full operation on 1 January 2026. 2,166 facilities now fall under mandatory greenhouse-gas inventory in Vietnam under Decision 13/2024/QĐ-TTg. This page summarises the compliance roadmap, the five solution pillars, 30 standardised technical solutions, IPMVP/ISO 50001 measurement methodology, and flexible financing models.

152

countries committed to Net-Zero

10,000+

companies with SBTi-validated targets

2050

Vietnam’s Net-Zero target year

Vietnam context 7 themes 5 risks Pillar 1 Pillar 2 Pillar 3 Pillar 4 Pillar 5 30 solutions Methodology Contact

Vietnam in the global context

The legal framework is in place — execution is the next chapter

Vietnam has set strong commitments at government level: Net-Zero 2050 (COP26), Decision 232/QĐ-TTg dated 24 January 2025 opening a pilot carbon market from June 2025, Decree 119/2025 amending Decree 06/2022 (effective 1 August 2025), Decision 768/QĐ-TTg dated 15 April 2025 revising the Power Development Plan VIII, the amended Law on Economical and Efficient Use of Energy (Law 77/2025, effective 1 January 2026), Decree 80/2024 (DPPA), Decree 135/2024 (self-consumption rooftop solar) and Circular 62/2025 (BESS tariff framework).

Internationally, EU CBAM moved into its definitive phase on 1 January 2026, CSRD/ESRS now require Scope 1/2/3 disclosure for large companies, while the US SEC Climate Disclosure and California SB 253/261 are tightening supply-chain reporting requirements. Voluntary initiatives — SBTi, RE100, EP100, EV100 — have become de-facto standards for global corporates.

At the plant level, every site starts from a different baseline. Most industrial manufacturers in Vietnam are actively exploring the right pathway — and a few common themes are worth highlighting.

7 common themes in the preparation phase

What we see when plants begin their Net-Zero journey

These are general characteristics of the transition phase — not specific to any one organisation.

1. A widening gap between new requirements and execution capability — increasingly recognised by plants that are building remediation plans.

2. Energy metering is not yet fully digitalised — many plants still rely on manual logs, which complicates verification against international standards (IPMVP, ISO 50015).

3. The required CAPEX and expected ROI are not yet clearly defined for an integrated roadmap that leadership can approve.

4. Limited technical-finance tooling for project planning (NPV, IRR, MACC) across a portfolio of energy-efficiency and decarbonisation projects.

5. IoT sensing and submetering infrastructure is still limited — making it difficult to obtain granular data per production line or load.

6. Net-Zero is a cross-disciplinary field — it blends engineering, finance, environment and automation, and calls for a multi-disciplinary team or partner network.

7. Execution sequence requires careful prioritisation — where to start, what to run in parallel, and how to measure outcomes.

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RISKS OF DELAYING THE START

5 real risks that late-moving plants are facing

1 Loss of product competitiveness

End customers (Apple Supplier Clean Energy Program, Walmart Project Gigaton, Nike Make/Move/Sell, Decathlon DBI, Inditex Green to Pack, IKEA IWAY) already require quarterly CO₂ reporting per product with 30–50% reduction KPIs by 2030. Without data, it is harder to remain on the preferred-supplier list.

2 Carbon border tariffs

EU CBAM (1 January 2026) imposes tariffs on iron, steel, aluminium, cement, fertiliser and hydrogen exports to the EU. The ETP-UNOPS assessment estimates Vietnamese steel exports to the EU could fall by USD 1.1 billion during the transition. Vietnam’s domestic ETS pilot runs from June 2025 to December 2028 (Decision 232/QĐ-TTg), with full operations from 2029. Allowance prices are forecast at USD 8–15 per tCO₂.

3 Supply-chain pressure from global parent groups

Global sustainability programmes (RE100, SBTi Net-Zero Standard v1.3.1, CDP Supply Chain) have moved from \”encouraged\” to \”contractual\” in 2025–2026. Supply-chain audits occur annually with independent verification by Bureau Veritas, SGS, TÜV, DNV and others.

4 Legal risk under the 2020 Law on Environmental Protection

The 2020 Law plus Decree 08/2022 allow temporary suspension of operations for sites breaching air or water discharge rules. CEMS that does not continuously transmit data per Circular 10/2021/TT-BTNMT is one of the most common findings during inspections. Late submission of annual GHG inventories (Decree 06/2022 + 119/2025, due 31 March) also leads to penalties.

5 Missing the 18–36 month \”window\”

Once the Vietnam ETS expands beyond power, steel and cement in 2027–2028 and CBAM extends to plastics and processed goods, retrofit costs are projected 30–50% higher and qualified technical partners will be booked out. Acting early benefits both unit cost and timeline.

Pillar 1 • Energy efficiency

\”Low-hanging fruit\” — ROI of 0.5–4 years, independent of energy markets

This is the fastest-payback group, independent of the electricity market and requiring no change to core process technology. Per IEA and US DOE, over 50% of industrial energy-efficiency capacity globally sits in this pillar.

Variable Frequency Drives (VFD/VSD) on centrifugal pumps, fans and compressors via affinity laws — 25–60% electricity savings. A 20% speed reduction yields a 49% power reduction.
Motor upgrade from IE1/IE2 to IE4/IE5 (SynRM, PMSM) — up to 40% loss reduction. ROI 2–5 years on 24/7 duty.
Compressed-air optimisation — ultrasonic leak detection (25–40% recovery), pressure optimisation (1 bar ≈ 7% energy), heat recovery (50–94%). Payback typically <18 months.
Chiller/HVAC optimisation — Variable Primary Flow, plant manager, free-cooling, EC fans — 20–40% savings.
Steam & thermal — steam-trap repair, O₂-trim combustion (3–8% fuel), conversion to biomass / e-boiler / CO₂ heat-pump (90–160°C).
LED lighting with daylight/motion sensors — 50–70% savings, ROI 1–2.5 years.
Heat Recovery Wheel & ERV for clean-room / pharma / healthcare fresh-air handlers — 40–70% reduction in cooling load.

Standards: TCVN ISO 50001:2019, ISO 50006, IEC 60034-30-1 (motors), ISO 11011 (compressed air), AHRI 550/590 (chillers), ASHRAE 90.1, IPMVP Option A/B/C, ISO 6552 (steam traps).

Pillar 2 • Electrification & renewable energy

Lock in Scope 2 at a stable price for 10–20 years

This pillar ensures the plant meets RE100 commitments from end customers and neutralises most of Scope 2. Vietnamese regulations have unlocked this group through 2024–2026.

Self-consumption rooftop solar per Decree 135/2024 — many configurations exempt from licensing, with up to 20% capacity allowed to be sold back. Yield in northern Vietnam 1,150–1,250, central 1,350–1,450, south 1,450–1,600 kWh/kWp/year. Turnkey cost USD 650–850/kWp. ROI 4–6 years for cash, or zero for third-party PPA.
DPPA – direct power purchase agreement per Decree 80/2024 for consumers ≥200,000 kWh/month. Two models: physical (private line) and virtual (via the EVN grid). Unlocks RE100 for parent-group commitments.
BESS – battery storage per Circular 62/2025/TT-BCT (effective 26 January 2026). Vietnam is the first major ASEAN economy with a two-part tariff. Peak shaving reduces bills by 20–40%. CAPEX USD 450–550/kWh (LFP, 4 h). ROI 3–4 years.
Hybrid microgrid (Solar + BESS + Diesel/Gas) for industrial parks or 24/7 plants — 25–45% electricity cost reduction plus resilience.
Industrial heat-pumps producing steam/hot water at 90–160°C — replace resistance/oil boilers with COP 2.5–4.5. Especially fit for F&B, textile dyeing, pharma.
EV charging & electric forklifts — reduce internal-logistics Scope 1, support EV100 commitments.

Standards: IEC 61730/61215 (solar), IEC 62619 + UL 9540A (BESS), IEEE 1547 (grid connection), GHG Protocol Scope 2 Market-based, RE100, EV100, ISO 17584.

Pillar 3 • Digitalisation

EMS, IoT submetering, AI, M&V to IPMVP

The digital layer underpins everything else — without measurement, the other four pillars cannot be verified. This is Lean-tes’s core area of expertise after 15 years in industrial automation.

Multi-utility Energy Management System (EMS) — monitors electricity, water, compressed air, steam and CO₂. Integrates with existing PLC/SCADA (Siemens S7, Rockwell Logix, Schneider Modicon). USD 30–60 per metering point.
IoT submetering — sub-meters per production line and load. Wireless / Modbus / OPC UA temperature, pressure, flow and current sensors.
AI/ML set-point optimisation for chillers, boilers and compressors — 5–15% on top of already-optimised baselines. SaaS or on-prem.
Carbon accounting platforms automating Scope 1/2/3 — CSRD ESRS E1, CDP, Apple Supplier Clean Energy compatible.
M&V to IPMVP Option C — automated savings reports using baseline regression and adjusted savings.
Digital Twin for major production lines — simulate optimisation scenarios before live changes.

Standards: ISO 50001 §6.6, ISO 50006 (EnPI), ISO 50015 (M&V), ISO/IEC 30141 (IoT reference), IPMVP 2022, GHG Protocol Corporate Standard.

Pillar 4 • Process & materials

Fuel switching, heat recovery, water reuse, emissions treatment

This pillar acts directly on Scope 1 (fuel combustion and process emissions) — the hardest to abate because it is tied to core production technology. Reductions of 30–95% of Scope 1 are typical when correctly implemented.

Coal/oil boiler conversion to biomass / biogas / e-boiler — 60–95% Scope 1 reduction; biomass is 30–55% cheaper than DO. Refer to QCVN 19/2024 emissions and QCVN 21:2018 steam standards.
High-grade heat recovery — recover 50–90% of compressor and flue heat for CIP heating, drying, hot water.
Water reuse (RO/MBR/MBBR) — 30–70% water-input reduction; supports Water Positive 2030 commitments (Apple/Samsung) and AWS Standard.
Fine particulate control (bag filter / ESP) — 95–99% reduction; required under QCVN 19:2024.
VOC capture (RTO/RCO) + CEMS — 95–99% VOC reduction; 60–85% heat recovery. CEMS data transmission per Circular 10/2021/TT-BTNMT.
Combustion optimisation + O₂ trim on boilers, furnaces and heat-treatment lines — 3–8% fuel savings.

Standards: QCVN 19/2024 (emissions), QCVN 40:2011 (wastewater), QCVN 14:2025, AWS Standard, ISO 17584, US EPA Method 25.

Pillar 5 • Compliance & reporting

Required by Vietnamese law and global supply-chain expectations

This pillar is mandatory — not optional. Done well, it unlocks contracts and avoids penalties rather than being merely a cost.

Scope 1/2 GHG inventory per Decree 06/2022 + 119/2025 for the 2,166 facilities listed in Decision 13/2024/QĐ-TTg. Biennial cadence. Annual reporting deadline: 31 March. IPCC 2006/2019 methodology.
Scope 3 inventory as required by CSRD ESRS E1, CDP, Apple Supplier Clean Energy, SBTi — 15 categories.
ISO 50001 — Energy Management System — TCVN ISO 50001:2019. Effectively required for designated key energy users.
ISO 14001 — Environmental Management + ISO 14064-1 (organisational GHG inventory).
CBAM documentation for EU exporters — CBAM certificates begin trading 1 January 2026.
Carbon credits — register under CDM, JCM, Article 6.4 Paris Agreement; HNX exchange operating from June 2025.
Energy audit every three years per Circular 19/2016/TT-BCT; appointment of a certified Energy Manager per Law 77/2025 (effective 1 January 2026).

Standards: Decree 06/2022 + 119/2025, Decision 13/2024, Decision 232/2025, Law 77/2025, TCVN ISO 50001/14001/14064, GHG Protocol, IPMVP, IPCC 2006/2019.

Want to discuss one pillar in more depth?

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Technical catalogue

30 standardised Net-Zero solutions across five sectors

Each solution is briefly described below. Contact Lean-tes for a full data sheet including: definition, where to apply, typical savings, CAPEX, payback, recommended brands, monitoring KPIs and applicable standards.

EE-01

IE4/IE5 motor upgrade

Replace IE1/IE2 motors >7.5 kW running >3,000 h/year.

ROI 2–5 yr • 5–15% vs IE3

EE-02

VFD for variable-load pumps/fans

Affinity laws — 20% speed drop = 49% power reduction.

ROI 0.5–2.5 yr • 25–60%

EE-03

Soft-starter

50–70% inrush current reduction; longer mechanical life.

ROI 0.8–1.5 yr

EE-04

High-efficiency drive trains

Synchronous belts / advanced couplings.

ROI 1–2 yr • 2–7%

EE-05

Compressed air: leak + pressure + controller

Ultrasonic leak detection, master pressure controller.

ROI <1.5 yr • 20–60%

EE-06

Compressor heat recovery

Recover 50–94% of waste heat for hot water/drying.

ROI 1.5–3 yr

EE-07

VSD compressor + storage tank

For highly variable air demand.

ROI 2–3 yr • 20–35%

EE-08

Chiller VPF + plant manager

For chiller plants >500 RT in clean-room/F&B.

ROI 1.5–3 yr • 20–40%

EE-09

Free-cooling / waterside economizer

Northern Vietnam and data centres.

ROI 2–3 yr • 10–25%

EE-10

EC fan AHU

Save 30–60% supply-fan power.

ROI 2–3 yr

EE-11

Heat recovery wheel / ERV

For clean-rooms, pharma, healthcare.

ROI 2.5–4 yr • 40–70%

EE-12

Steam trap audit + condensate

Failed traps represent 15–30% of steam losses.

ROI 0.5–1 yr • 5–15%

EE-13

Biomass / e-boiler / biogas

Replace coal/DO/FO boilers 5–50 t/h.

ROI 3–5 yr • 60–95% Scope 1

EE-14

Heat-pump 90–160°C

COP 2.5–4.5; F&B, textile dyeing, CIP.

ROI 3–5 yr • 60–80%

EE-15

O₂ trim & combustion tuning

For boilers and furnaces.

ROI 1–2 yr • 3–8% fuel

EE-16

LED + sensors

Highbay / warehouse / office / parking.

ROI 1–2.5 yr • 50–70%

RE-17

Self-consumption rooftop solar

Decree 135/2024, USD 650–850/kWp.

ROI 4–6 yr

RE-18

DPPA direct power purchase

Decree 80/2024, customers ≥200k kWh/month.

Zero CAPEX via 3rd-party PPA

RE-19

BESS peak shaving

Circular 62/2025, USD 450–550/kWh.

ROI 3–4 yr • 20–40%

RE-20

Hybrid microgrid

Solar + BESS + Diesel/Gas.

ROI 5–7 yr • 25–45%

RE-21

EV charging for logistics

Distribution centres, warehouses, parking.

ROI 4–6 yr

RE-22

AGV/AMR & e-forklifts

Lithium replacing diesel/LPG.

ROI 3–5 yr • 40–60%

DG-23

EMS + IoT submetering

USD 30–60 per point; auto-generates Decree 06/2022 reports.

ROI 1–2 yr • 3–10%

DG-24

AI/ML set-point optimisation

Chillers, boilers, compressors.

ROI 1–2 yr • 5–15%

DG-25

Carbon accounting SaaS

Auto Scope 1/2/3; CSRD-ready.

ROI <1 yr

EV-26

Water reuse (RO/MBR)

30–70% water-input reduction.

ROI 3–5 yr

EV-27

Bag filter / ESP

95–99% particulate reduction; QCVN 19.

Required • ROI 2–4 yr

EV-28

RTO/RCO + CEMS

VOC abatement + continuous emissions monitoring.

ROI 3–5 yr

CR-29

ISO 50001 / 14001 / 14064

Implementation + training + first-year certification.

0.5–1 yr • unlocks contracts

CR-30

GHG inventory + carbon credits

Decree 06/2022, Decision 232/2025, Article 6.4.

Required + revenue generating

Measurement methodology & standards

How Lean-tes measures and verifies results

IPMVP — International Performance Measurement and Verification Protocol

Published by EVO (Efficiency Valuation Organization). Four method options: A (key parameter + estimate), B (all-parameter measurement), C (whole facility — main meter + regression), D (calibrated simulation).

GHG Protocol Corporate Standard

WRI & WBCSD’s de-facto standard for corporate GHG accounting. Scope 1 (direct), Scope 2 (location- and market-based), Scope 3 (15 categories).

ISO 50001 / 50006 / 50015

50001 — energy management system. 50006 — EnPI and Energy Baseline. 50015 — measurement and verification at organisational level. Adopted as TCVN ISO 50001:2019 in Vietnam.

Relevant Vietnamese law

Law on Environmental Protection 72/2020/QH14 • Decrees 06/2022 + 119/2025 • Decision 13/2024 (2,166 facilities) • Decision 232/2025 (ETS roadmap) • Decision 768/2025 (revised PDP8) • Law 77/2025 (amended Energy Efficiency Law) • Decree 80/2024 (DPPA) • Decree 135/2024 (rooftop solar) • Circular 62/2025 (BESS).

Lean-tes role

Automation & digitalisation specialist — alongside leading Net-Zero experts

Lean-tes specialises in industrial automation and digitalisation. For client engagements we partner with leading Net-Zero experts to ensure advice complies with international and Vietnamese standards while staying anchored to real on-site execution capability.

Measurement & digitalisation: install submetering, IoT and EMS — turn manual logs into auditable real-time data.
Engineering & EPC: design and deliver the 30 technical solutions — VFD, IE5 motors, chillers, solar, BESS, heat-pumps.
Automation integration: connect new equipment to existing PLC/SCADA without production downtime.
M&V to IPMVP: reporting for parent-group and independent audits.
Flexible commercial models: EPC turnkey, EaaS savings-share (zero CAPEX), BOO solar/BESS, or fractional Energy Manager.

Ready to talk?

Four ways to start — pick what’s easiest

Lean-tes responds within 4 working hours. The first conversation is free, no commitment. NDA can be signed upfront if needed.

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Or take the 2-minute readiness survey first:

10 short questions so Lean-tes understands your plant — result and recommended next-step checklist sent back by email within one working day.

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