Carroll County Energy LLC, a 700-megawatt natural gas fired electric generation facility with cutting edge General Electric Turbine technology has been in commercial operation since 4th quarter 2017. Advanced Power is the asset manager and the facility is operated and maintained through a third-party agreement with EthosEnergy Group. 


EthosEnergy is a leading independent service provider for owners and operators of rotating equipment in the power generation, oil & gas, and industrial sectors.

Employing more than 4,500 people and serving customers in over 100 countries, our vision is to be the top performing provider of innovative solutions that materially increase the life cycle value of our customers’ assets across global energy markets.

Our services include:

  • Facility operations & management
  • Design, manufacture and application of engineered components, upgrades and re-rates
  • Repair, overhaul and optimization of gas and steam turbines, generators, compressors and transformers
  • Delivery of gas turbines and supply of overhauled and warrantied equipment on a fast track basis

Our business has depth and experience in asset management and term maintenance agreements and offers transactional factory-based parts and repair services.


The word Ethos is defined as the underlying characteristic of a culture or team. As a culturally diverse company we use values to bind us together, that common element that each and every one of us shares. We refer to the as Our Ethos.

Our Ethos is our foundation, the rock on which we built our company. It marks who we are and what we do, and even better; all five elements were selected and defined by our employees.

We live and demonstrate Our Ethos with one another, with our customers and in our communities. It is how we create our one team culture.

The five elements of Our Ethos are; Safety, Service Excellence, People, Financial Responsibility and Integrity. 


EthosEnergy provides comprehensive third-party operations and maintenance (O&M) services for power plant owners. Our proven programs, practices and procedures have been honed from a solid foundation of operating experience, with a focus on enhanced plant performance and reliability, commercial optimization and regulatory compliance.