Calpine reviews

4.0

82% would recommend to a friend

(445 total reviews)

Andrew Novotny/Thad Hill

91% approve of CEO

75% positive business outlook

Calpine has an employee rating of 4.0 out of 5 stars, based on 445 company reviews on Glassdoor which indicates that most employees have a good working experience there. The Calpine employee rating is in line with the average (within 1 standard deviation) for employers within the Energy, Mining & Utilities industry (3.7 stars).

Reviews by job title

445 reviews
5.0
Feb 4, 2026

Great Company

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Everyone treats each other like family and they take safety very serious. There are a lot of opportunities around the nation that satisfy many fields of work.

Cons

It can be difficult to get your foot in the door with this company, but it is very rewarding if you can land an opportunity.

3.0
Sep 23, 2025

A place to work

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Its a place to work.

Cons

The small plants are nice but they mainly focus on Houston for most benefits and the benefits you do get are a bare minimum for a billion dollar company

3.0
Jan 23, 2025
Recommend
CEO approval
Business Outlook

Pros

Consistent work, you know what you are going to do every day

Cons

All of the employees are very shady and fake, corporate snakes everywhere.

Viewing 73 - 75 of 445 Reviews

Glassdoor has 523 Calpine reviews submitted anonymously by Calpine employees. Read employee reviews and ratings on Glassdoor to decide if Calpine is right for you.