Every Last Joule · Region record

Vietnam

Provenance, tier, and validation record for vietnam. No live curtailment figures on this page — those are on the globe.

Region id: vietnam
Country: VNM
Waste modality: Solar
Coordinates: 11.50° N, 108.80° E

Estimated Data quality

Tier

estimated · T3-modelled

No live feed and no published total for this region. A typical-shape profile is scaled to a capacity-based or literature anchor.

Modelled profile, scaled to annual (±40%)

Uncertainty

±40% of peak GW

Published envelope for this tier. See the uncertainty model.

Source provenance

modelled-fallback · No verified upstream link

There is no verified upstream link. The snapshot is a typical-shape profile scaled to an anchor, or otherwise estimated.

Source

EVN/NLDC assessed 2026-05-09: NLDC (nldc.evn.vn) publishes daily dispatch reports as PDF only; no machine-readable CSV/JSON endpoint found. EVN open data portal does not expose curtailment data. EREA and World Bank USAID SAVE project cite 20–35% curtailment rates in Central/South-Central provinces 2023 (~2+ TWh/yr estimated), but only as PDF reports. T1 blocked: PDF-only, no programmatic endpoint.

https://nldc.evn.vn/

Tier, provenance, and source are read at build time from src/lib/regions.ts — the same table the globe draws from. The validation record below is generated separately and gated against it by npm run ci:docs-drift.

Validation record

Last updated: 2026-08-20 · Sprint: S1 + HB integration · Paper section: Technical Validation §4.2

Source

Region id: vietnam
Country: VNM
Tier: estimated
Kind: solar
Source: EVN/NLDC assessed 2026-05-09: NLDC (nldc.evn.vn) publishes daily dispatch reports as PDF only; no machine-readable CSV/JSON endpoint found. EVN open data portal does not expose curtailment data. EREA and World Bank USAID SAVE project cite 20–35% curtailment rates in Central/South-Central provinces 2023 (~2+ TWh/yr estimated), but only as PDF reports. T1 blocked: PDF-only, no programmatic endpoint.
Source URL: https://nldc.evn.vn/
Loader: vietnam.json.ts
Structural gap: no

Calibration

Rate source documented in: docs/methodology/ (see links below)
Uniform across backfill years: n/a — no backfill

Multi-year backfill annual totals

Year	Backfill rows	Backfill annual TWh	Published TSO annual TWh	Δ %	Source
(no backfill or TSO anchors yet — will be populated after HB fan-out completes)

Published anchors

TSO annual curtailment (latest published): EVN 2024 solar curtailment ~3 TWh (2022 peak, tapering)
Ember annual: —
IRENA annual: —
Other: —

Discrepancy analysis

No backfill and no TSO anchor. Region relies solely on the live snapshot; nothing to triangulate against.

Known limitations

No region-specific limitations recorded. See docs/methodology/historical-backfill.md §"Known limitations" for cross-cutting notes.