Public Service Colorado Solar
Provenance, tier, and validation record for psco-solar. No live curtailment figures on this page — those are on the globe.
- Region id
psco-solar- Country
- USA
- Waste modality
- Solar
- Coordinates
- 38.20° N, 105.50° W
- Tier
anchored· T2-annual-calibratedNo live feed. A published annual or monthly total from an operator, regulator, or satellite programme sets the level.
Published annual anchor (±20%)
- Uncertainty
- ±20% of peak GW
Published envelope for this tier. See the uncertainty model.
- Source provenance
verified· Verified upstream linkThe snapshot value comes from a verified upstream feed or anchor.
- Source
- EIA PSCO solar
https://www.eia.gov/opendata/browser/electricity/rto/fuel-type-data
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:
psco-solar - Country: USA
- Tier: anchored
- Kind: solar
- Source: EIA PSCO solar
- Source URL: https://www.eia.gov/opendata/browser/electricity/rto/fuel-type-data
- Loader:
psco.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
New region (granularity survey 2026-06-10). No multi-year backfill yet; magnitude is a conservative T2 anchor (±20% envelope) pending a BA-published curtailment figure.
Known limitations
- The curtailment rate is a literature/IRP anchor applied to live EIA-930 generation, not a BA-published curtailment number — hence T2 (
anchored), not T1a. - A single territory centroid is a coarse globe placement for a multi-state balancing authority.
Links
- Loader source:
psco.json.ts - Backfill archive:
data/historical/backfill/*_psco-solar_*.parquet(0 years) - Cross-cutting methodology:
docs/methodology/historical-backfill.md - Data source log:
docs/data-source-log.md - Known limitations index:
docs/known-limitations.md
Current GW, 24-hour peak, 30-day TWh, and feed freshness for this region are on the globe. Cite this page as everylastjoule.com/region/psco-solar. The dataset has a DOI; see About.