Volume IX · Issue 09 · September 2025
The Variance Review
A monthly account of how operating dirhams were planned, spent and re-projected across the plant.
Reporting Period
YTD · Jan – Sep 2025
Currency · USD '000 unless stated
Lead story
Plant under-spent by — through September, with fuel savings absorbing maintenance over-runs.
Gas hedge tier locked at $7.20/mmBtu since April delivered the bulk of favourable variance; Bonga-X unplanned overhaul drove the principal overrun.
Budget YTD
—
USD · operating + small capex
Actual YTD
—
Oracle GL · trial balance
Forecast FY
—
YTD actual + remaining plan
Variance · A vs B
—
—
favourable
Generation
3,540 GWh
Availability 92.4% · Heat rate 7,540 Btu/kWh
Cost per MWh
$28.0
Budget $27.2 · +2.9%
Forced outages
3 events
36 lost hours · within EFOR band
Headcount
214 FTE
Plan 220 · -2.7%
Chapter One
By department & cost centre.
| Department | Cost Centre | Budget | Actual | Forecast | Var $ | Var % | FY Outlook |
|---|---|---|---|---|---|---|---|
| Total — Plant operating budget | — | — | — | — | — | — |
Chapter Two — at a glance
B / A / F by department.
Each row reads as planned (sand), realised (sage) and projected (terracotta). Bars are normalised to the budget for that line.
Chapter Three — composition
Where the spend went.
Total
—
Fuel
—Labour
—Maintenance
—G&A & Other
—Chapter Four — drivers
What moved the number.
Top favourable
Top unfavourable
Chapter Five — the year, month by month
Cumulative OPEX walk.
Editor's note
Three lines that defined the quarter.
- Fuel — Gas (CC-1300): $2.32M under plan, courtesy of the Q1 hedge bracket and three weeks of cooler ambient temperatures lifting heat-rate performance.
- Mechanical Maintenance (CC-1210): $0.27M overrun on Unit-2 HRSG tube replacements; an additional $1.10M is contracted for Q4 — visible in the forecast.
- IT & Cyber (CC-1800): $0.19M overrun is intentional — accelerated OT segmentation under the new NIS2 regime.
Chapter Six — the grid
Cost-centre variance, by month.
Favourable
Unfavourable
Cells show variance % vs monthly budget. Positive = under budget. Hover the row label for the cost-centre code.