A post-project review (PPR) was performed to assess costs, review power usage, and capture improvement opportunities. Three areas were identified:
- Hard savings – total cost of in-house power use vs. diesel generators
- Cost avoidance – 100% elimination of fuel cost vs. fuel cost associated with using similarly-sized diesel generators
- Soft savings – Labor savings and productivity derived from 100% system reliability vs. one at 99.9%.
On a turnaround where the client was spending more than $100M, Aggreko’s on-grid system delivered $2.295M in cost savings and avoidance. Because recorders captured loads, the client could also identify the number of emissions the on-grid system avoided, excluding those generated by the local utility. NOx elimination was more than 30,000 pounds. As an added benefit, the site now knows what the load should be when the next turnaround on the unit occurs three years from now.
The number one critical success factor is early engagement and allowing Aggreko, experts in temporary power, to design a system that meets the unique needs of each turnaround.