TG Advisers mail@tgadvisers.com (302) 691-3330

What We Do

We offer a portfolio of engineering technical consulting services to help you manage, troubleshoot, and optimize your critical steam and gas turbine generator assets. Click on the links below to learn about some of them:


Steam and Gas Turbine Generator Health Assessment

The key to effective O&M and outage planning is a thorough understanding of the condition and history of the turbine generator components in order to account for the numerous failure modes common to power generation applications. Recent NDE inspection reports alone do not allow for the most effective outage planning and troubleshooting as many failure modes are time dependent and/or chronic in nature.

TG Advisers, through its own established Turbine Generator Health Assessment Process, conducts interviews with operations and maintenance personnel, reviews available NDE and turbine outage inspection reports including those dating to unit commissioning, and incorporates detailed knowledge of turbine generator design, materials, and critical fleet service issues to develop a risk-weighted action plan for the next major outage.
Upon completion of the health assessment process, a report is issued which consists of the following:
  • Turbine Generator Unit Service History Review
  • Problem Area Analysis by Component (turbine, generator, valves, controls, systems, boiler, BOP
  • Weighted Ranking of issues by Probability and Potential Impact (forced outage probability
  • Action plans for critical issues
  • Executive Summary
Turbine generator action plans include recommendations for replacement parts, repair, inspection, and testing as well as troubleshooting and maintenance recommendations. Outage planning and spending is based on a risk-weighted analysis of critical issues. TG Advisers has completed more than 400 turbine generator engineering consulting assessments.
Steam and Gas Turbine Generator Health Assessment


Steam Turbine, Gas Turbine, and Generator Operational Troubleshooting

We have expertise to troubleshoot a wide variety of steam turbine, gas turbine, and generator operating issues including vibration, turbine performance shortfalls, and chronic mechanical problems. Our services include record review, data gathering, operator interviews, engineering analysis and action plans to diagnose and correct the problem. We also provide turbine training, where appropriate, to mitigate future reoccurrences of the issue.
Steam Turbine, Gas Turbine, and Generator Operational Troubleshooting

Steam Turbine, Gas Turbine, and Generator Root Cause Failure Analysis (RCFA)

We are also versed in several formal engineering failure analysis techniques including organized brainstorming, fault trees, Pareto, fishbone diagrams, Kepner Tregoe problem solving and six-sigma techniques. Depending on your needs, we can provide engineering consulting, facilitate, or lead a formal failure analysis process. In addition, our engineering network offers a full range of materials testing and examination services which are available as standalone services or as part of a comprehensive turbine generator failure analysis investigation.

Does your problem require a complex analytical engineering solution? We are proficient in developing and interpreting finite element analysis (FEA) models. Our team has extensive turbine generator OEM design experience and we are well versed in the assumptions necessary to ensure accurate and valuable modeling results.


We also offer a wide variety of metallurgical testing to help aid in root cause failure analysis (RCFA) or for material property validation.

Steam Turbine, Gas Turbine, and Generator Root Cause Failure Analysis (RCFA)

Turbine Generator Outage Planning, Maintenance, and Capital Optimization

We offer full turbine generator outage planning. This includes RFQ and outage specifications documents, full outage scopes and outage action items, engineering risk assessments, TIL and Service Bulletin reviews, turbine NDE inspection and generator testing requirements, owner's representative, and much more.

Additionally, our customers have saved millions of dollars by transitioning from a fixed schedule of major turbine generator outages to a customized schedule of smaller component focused outages. In conjunction with the TGA Turbine Generator Health Assessment, the turbine generator outage interval extension analysis accounts for time-based risks associated with your unit to determine appropriate inspection intervals for each major turbine generator component. The economics of transitioning to time based, shorter, more frequent inspections are then evaluated and implemented to confirm the financial benefits of the new outage schedule. The result is a more appropriate turbine generator inspection regime with significant cost savings.


View our Outage Cycle Optimization Case Study for Additional Details.
Turbine Generator Outage Planning, Maintenance, and Capital Optimization

Turbine Generator Outage Discovery Packages

Need additional engineering consulting support during turbine generator major outages? TGA fixed cost outage discovery packages are a great option to supplement your engineering team during the critical phases of the outage. Our decades of turbine and generator expertise is leveraged to help make quick and risk informed decisions that ultimately keep the outage on schedule and budget. Our packages include TGA's engineering consultant's onsite during the critical discovery and scope finalization phase of the outage, as well as remote support from our engineering experts. Our consultants are ready to troubleshoot or tackle any issue that arises!

Alliance Goals:


  • Priority Access to TGA's Turbine Generator Expertise during Critical Outage Discovery and NDE Phase of your Outage
  • First Hand TGA Condition Assessments
  • Independent 3rd Party Repair, Replace, Reuse Analysis and Recommendations
  • Independent 3rd Party Review of Performance Assessments and/or Service Provider Recommendations
  • Review of Opening Clearances/Findings to identify Rebuild Considerations/Concerns
  • Outage and Repair Scope Finalization Assistance
  • Owners Representative in OEM/Service Provider Discussions
  • Integrate 35+ years of Troubleshooting, Emergent Issues, and Industry Best Practices into your Outage Decision Making
  • Quick, Well Informed, and Risk Based Decision Making to Avoid Costly Delays and Overages
Turbine Generator Outage Discovery Packages

Turbine Generator Technical Field Advisers (TFA) & Shop Surveillance

Has your plant had trouble managing the numerous tasks of an outage or had issues with a post outage start up? Let our Technical Field Advisers (TFA) provide the quality documentation and technical oversight services necessary to ensure a thorough turbine generator overhaul process and a trouble free startup.
Turbine Generator Technical Field Advisers (TFA) & Shop Surveillance

New and Retrofit Turbine Generator Design Reviews

We offer a structured process to assist you throughout your purchase of new or retrofit turbine generator equipment. With our OEM design experience and assessments of 400+ steam and gas turbine generator units, we will help your team identify weak points in the design and ask the tough questions! Addressing design issues as early as possible in the design cycle helps avoid costly delays and forced outages. Some examples of recent changes enacted, based on our integration in the design process, include improved axial clearances to address differential expansion concerns, blade material change, SPE coating additions, and changes to balance sleeve design and clearances for improved pump operability.

Need to recruit a bid for a new, retrofit, or a turbine generator repair project? Received a number of bids and want an independent review? TG Advisers will prepare the technical portion of bid specifications. Our extensive knowledge of OEM turbine and generator design and repair will assure that the bid specifications are comprehensive and technically feasible. TGA efforts will help ensure the bid meets the expectations and is in the best interest of you, the customer.
New and Retrofit Turbine Generator Design Reviews

Ask an Expert Support

Have a question and want an independent or second opinion? TG Advisers provides on-line, phone or site expert engineering consulting support at a fixed hourly rate or retainer considered to be at a substantially discounted rate from those rates published by OEMs.
Ask an Expert Support

Education, Training, Research and Development

TG Advisers holds courses on turbine generator troubleshooting, failure analysis, and outage management. TGA also offers control room operator training to introduce your operations team to critical equipment, industry best practices and human error mitigation techniques. Courses can be held at your location and catered to your particular turbine generator unit configuration. We also provide courses in conjunction with annual power conferences.

TG Advisers continues to expand the research we do on behalf of other affiliates in order to promote best practices within the industry. EPRI members are invited to check out our recently published study, Maintenance Guidelines for Generators Used in Simple and Combined Cycle Plants
Education, Training, Research and Development

Turbine Generator Expert Witness Testimony

As specialists in turbine and generator design, in-service operations and engineering consulting, we can provide expert witness testimony in legal issues related to turbine generator equipment. TG Advisers has a demonstrated track record of providing technical expertise in an unbiased manner.
Turbine Generator Expert Witness Testimony