According to an EnergyAustralia spokesperson, the company is hoping to employ around one-third from within the Lithgow region.

Lithgow City Council mayor Cr Ray Thompson said it was exciting for the community of Lithgow.

"We were disheartened when Wallerawang [power station] closed and Angus Place Colliery, we lost quite a few hundred jobs," he said.

"We are not a huge community and when we lose a few hundred jobs it's devastating, so it is great to get announcements like this to get Lithgow back on track again.

"It is exciting to see two turbines being upgraded, it just gives a real lift to our community."

READ MORE: EnergyAustralia to invest $80 million to upgrade turbines at Mt Piper power station

Member for Bathurst Paul Toole MP welcomed the boost to the region.

"This is a tremendous announcement that is sure to have an immeasurable impact on the community of Lithgow and surrounds," Mr Toole said.

"This isn't just about securing the state's power supply, it's about securing growth and jobs for the Lithgow community."

The turbine upgrades will increase economic activity in the Lithgow region during the upgrades with around 100 workers expected to contribute to the project.

"This investment by EnergyAustralia is significant. It shows their commitment to this plant, its future and its employees," he said.

"The plant is considered an important energy asset for New South Wales and the local Lithgow community, providing direct and in-direct jobs for around 250 people and contributing around $40 million each year to the local economy."

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According to an EnergyAustralia spokesperson, the 100 workers will be employees of principle contractor, Toshiba, and working full time for the 70 day project period.

The majority will be skilled tradespeople with turbine experience, including riggers, electricians, fitters, boilermakers and pressure welders but will also require cleaners and general hands.

"In addition, there will be a further 150 people working at Mt Piper to support our major outage maintenance program that will take place at the same time," the spokesperson said.

The major outage is set to focus on plant integrity and reliability, to ensure Mt Piper continues to run safely and efficiently, the spokesperson said.

"This means an investment in the region of $55 million on top of the $80 million for the turbine upgrade works."

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According to the representative the investment will be used to procure equipment, supporting infrastructure, labour and systems to keep these workers safe.

"Workers will also require local accommodation," the representative said.