Every Last Joule · Region record

Alberta Solar

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

Region id: alberta-solar
Country: CAN
Waste modality: Solar
Coordinates: 51.00° N, 113.50° W

Measured Data quality

Tier

live · T1a-live-tso

The transmission system operator publishes an hourly series, and the calibration rate comes from the same jurisdiction.

Live TSO feed, own-jurisdiction rate (±2σ from 5-yr backfill, fallback ±15%)

Uncertainty

±15% of peak GW

Regions with a five-year backfill archive use ±2σ of observed annual variance instead of this default fraction.

Published envelope for this tier. See the uncertainty model.

Source provenance

verified · Verified upstream link

The snapshot value comes from a verified upstream feed or anchor.

Source

AESO solar snapshot

http://ets.aeso.ca/ets_web/ip/Market/Reports/CSDReportServlet

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: alberta-solar
Country: CAN
Tier: live
Kind: solar
Source: AESO solar snapshot
Source URL: http://ets.aeso.ca/ets_web/ip/Market/Reports/CSDReportServlet
Loader: alberta.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): —
Ember annual: —
IRENA annual: —
Other: —

Discrepancy analysis

No solar-only Alberta curtailment anchor is currently archived. The loader uses AESO's live solar supply row and shapes the solar component around Alberta local noon so overnight hours remain zero.

Known limitations

AESO CSD is a current-supply snapshot rather than a historical curtailment feed. The solar child is modelled from the solar snapshot and should be upgraded when AESO publishes an hourly solar curtailment or dispatch-down feed.