Added Jun 18, 2026Completed May 13, 2023
Company
Gulf Turbine Services
Client
Vistra (Luminant)
Source
MANUAL
Contract Type
LUMP SUM
Market Segment
GT_OUTAGE
Public/Private
PRIVATE
Project Manager
Ray Daniels
Estimator
Phil Carter
Superintendent
Marcus Hill
Location
Midlothian, TX
Margin Analysis
Original Margin
13.0%
$357,500
Revised Margin
10.2%
$297,500
Final Margin
3.1%
$92,165
Margin Fade (Bid)
-9.9%
CO Impact
$-60,000
Margin Fade (Revised)
-7.0%
Where They Land
Final Margin+3.1%
Break Even
-0.9%+24.4%
Gain / Fade-7.0%
As Predicted
-7.9%+2.0%
This project
Other projects
Zero reference
Revenue & Cost Summary
| Stage | Revenue | Cost | Profit | Margin |
|---|---|---|---|---|
| Original | $2,750,000 | $2,392,500 | $357,500 | 13.0% |
| Revised | $2,930,000 | $2,632,500 | $297,500 | 10.2% |
| Final | $2,930,000 | $2,837,835 | $92,165 | 3.1% |
Cost Category Variance
| Category | Original | Revised | Final | Variance $ | Over/Under % |
|---|---|---|---|---|---|
| Labor | $790,677 | $850,757 | $965,609 | +$114,852 | +13.5% |
| Material | $656,935 | $778,769 | $786,557 | +$7,788 | +1.0% |
| Subcontractor | $687,462 | $638,786 | $646,788 | +$8,002 | +1.3% |
| Equipment | $190,834 | $199,050 | $215,173 | +$16,123 | +8.1% |
| Other | $71,775 | $165,138 | $223,708 | +$58,570 | +35.5% |
Labor Productivity
Original Rate
$76/hr
Revised Rate
$84/hr
Final Rate
$77/hr
Hours Variance
2,136
Rate Variance $
$12,602
Volume Variance $
$162,330
Lessons Learned
Lump sum on an HGP without confirmed parts lead time is risky. Transition pieces arrived late, crew idled 2 shifts. Fade was schedule, not execution.