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
4.0
Mar 10, 2026

Good company

Recommend
CEO approval
Business Outlook

Pros

Really good manager and patience team

Cons

Company environment feels very rigid

5.0
Feb 19, 2026

Rotational

Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Good comp, exposure to high responsbility early on

Cons

Longer hours are expected on trade floor.

Viewing 163 - 165 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.