Scenario: a steel plant director asks: “I hear we will soon have to buy ‘carbon allowances’ — where, at what price, do we get any free?” The answer: Vietnam’s carbon market is in pilot phase (under the carbon market establishment and development scheme approved in early 2025), and how you receive allowances — free or auctioned — decides billions of dong in costs.
Two allocation methods: free and auction
Free allocation commonly uses two global methods: grandfathering (based on the firm’s historical emissions) and benchmarking (based on sectoral emission-intensity benchmarks — cleaner-than-benchmark firms get surplus to sell). Auctioning: firms must buy allowances — price set by the market. The common trajectory (EU ETS): start mostly free, phase down free allocation, ramp up auctioning. Vietnam is designing its pilot-phase allocation — businesses must grasp this logic to forecast carbon costs 5–10 years out, not just year one.
How do businesses calculate allowance needs?
Basic formula: need = actual emissions − freely allocated allowances. Actual emissions come from the GHG inventory report (see EXP-5179) — which is why GHG inventories are the mandatory “input” to the carbon market: no credible inventory data, no calculable allocation. Businesses need to: (1) complete MRV (measurement, reporting, verification) systems; (2) forecast emissions against production plans; (3) compute the yearly allowance “gap” along the free-allocation phase-down.
Strategy: buy early, cut emissions, or both?
Three strategies: (1) buy early/stockpile — if you believe carbon prices will rise (EU experience: ETS prices multiplied within a decade); (2) cut emissions — invest in clean technology to both reduce buying needs and potentially sell surplus allowances (if the rules allow); (3) combine — most common. Note: allowances usually have validity periods and banking rules — stockpiling without understanding the rules can become “waste paper”. And do not forget CBAM (see EXP-5180): exporting to the EU means carbon costs at the EU market too.
Recommended actions
1. Complete GHG inventories and MRV — the “entry ticket” to the carbon market. 2. Model the 5-year allowance gap under allocation scenarios. 3. Compare emission-reduction investment vs allowance buying — find the breakeven. 4. Track the carbon market scheme and detailed allocation rules.
Frequently Asked Questions
How is free allocation calculated (grandfathering, benchmark)?
Two common methods: grandfathering (based on the firm’s historical emissions) and benchmarking (based on sectoral emission-intensity benchmarks — cleaner-than-benchmark firms get surplus to sell). Vietnam is designing its pilot-phase allocation; businesses should understand both to forecast.
What is the expected auction share and ramp-up?
The common trajectory (EU ETS): start mostly free, phase down free allocation and ramp up auctioning. Vietnam’s specific shares and timeline await detailed allocation rules under the carbon market scheme (approved early 2025, now piloting).
How do businesses calculate allowance needs?
Formula: need = actual emissions − freely allocated allowances. Actual emissions come from the GHG inventory report — hence GHG inventories are the mandatory “input”. Complete MRV systems, forecast emissions against production plans, and compute the yearly “gap”.
Should we buy early and stockpile allowances?
Depends on price expectations: if you believe carbon prices will rise (EU experience: ETS prices multiplied within a decade), early buying pays — but understand allowance validity and banking rules first, or stockpiles become “waste paper”. The combined strategy (buy + cut emissions) is most common.
Can emission cuts be monetised via surplus allowances?
If trading is allowed: firms emitting less than their free allocation can sell the surplus — turning cuts into revenue. Details await trading rules in the pilot market.
How do carbon allowances relate to CBAM?
Exporters to the EU face additional carbon costs at the EU market under CBAM (see EXP-5180) — total carbon costs in both Vietnam and the EU must be priced into export planning.
