One data estate, one definition per number
Six domains feeding a governed lakehouse. The point is not a new dashboard — it is that the board pack, the directorate review and the regulator return all draw from the same definition.
Bronze · Raw landing
Historian exports, ledger extracts, billing files, HR feeds, scanned documents. Immutable, as-received.
- Plant historians
- Ledger & billing
- Contract scans
- Weather & hydrology
Silver · Conformed
Cleansed, keyed to the asset register, with quality rules and agreed definitions per domain.
- Asset-keyed telemetry
- Receivables ageing
- Contract obligations
- Workforce records
Gold · Business ready
The numbers that reach a directorate or the board, each with one definition and one owner.
- Fleet availability
- Revenue & margin
- Capital delivery
- KPI lineage
Board KPI lineage
Every number on an executive screen, traced to its definition and its source
| Indicator | Value | Definition | Source | Cadence | Confidence |
|---|---|---|---|---|---|
| Available capacity | 2,547 MW | Sum of installed capacity across hydro, thermal and renewable plants | vra.com facts & figures (public) | Annual | Cited |
| Fleet availability | 87% | Available hours divided by period hours, weighted by capacity | Illustrative — plant historians | Daily | Illustrative |
| Bulk receivables over 60 days | GHS 412m | Invoices unpaid beyond 60 days from bulk customers | Illustrative — billing and ledger | Daily | Illustrative |
| Approval cycle time | 9.2 days | Median elapsed time from requisition to final approval | Illustrative — approval trail | Hourly | Illustrative |
| Renewable share of capacity | 1.5% | Installed renewable MW divided by total installed MW | Derived from public capacity table | Annual | Derived |
Domains
Generation data products
What a directorate actually consumes, and who owns it
Only the published capacity figure is cited from the Authority's public record. Every other value on this page is illustrative, and the estate shown is a reference architecture rather than a description of existing VRA systems.