2027 Chemical Engineering Intern – Geysers

Constellation; Middletown (CA); On-site; USD 25,000 - 39,000; Full time

Benefits offered by this job

Paid internship

Hands-on project experience

Job summary

Constellation invites motivated Chemical Engineering students to apply for a paid internship at The Geysers power plant in Middletown, CA. Gain real-world experience in process control, lab work, and project development under supervision.

The ten-week program runs June 7–August 13, 2027, with mentorship and opportunities to contribute to plant improvements and data analyses in a dynamic energy environment.

Qualifications

• Legally eligible to work in the U.S. now and in the future for any company.
• Junior-year engineering science coursework including chemical engineering subjects.
• Proficient with Microsoft Office tools; Excel, Word, PowerPoint; VBA preferred.
• Team player with strong writing and communication skills.
• Must have a valid driver’s license and ability to drive on mountain roads.
• Work environment includes office and outdoor plant settings.
• Strong work ethic and initiative.
• Good academic standing.
• 4×10 work schedule (Mon–Thu).

Responsibilities

• Assist Chemical Engineers on Plant Performance, Historical Analysis, and Chemical Lab improvements.
• Learn H2S Abatement system operation and conduct studies at various plant locations.
• Build material balance spreadsheets for a geothermal plant and develop kinetic equations for H2S abatement.
• Support lab personnel with analytical tasks, data entry, and field sampling.
• Operate lab equipment (wet chemistry, atomic absorption, GC, etc.) and analyze geothermal samples.
• Perform site visits with Calpine personnel to learn environments and activities at plants.

Education

Engineering coursework (Chemical Process Analysis, Transport Phenomena)

General Chemistry with lab

Quantitative Analysis with lab

Tools

Microsoft Word

Microsoft Outlook

Microsoft Access

Microsoft PowerPoint

Microsoft Excel

VBA (Excel)

Job description

As the largest private-sector power producer in the world and the nation’s largest producer of clean and reliable energy, Constellation is focused on our purpose: lighting the way to a brilliant tomorrow for all. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes.

Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we’re creating healthier communities and a cleaner planet, and our people are the driving force behind our success. At Constellation, you can build a fulfilling career with opportunities to learn, grow and make an impact. By doing our best work and meeting new challenges, we can accomplish great things. Join us in meeting the country’s energy needs today and tomorrow.

We are currently seeking highly motivated Chemical Engineering students for internships for 2027. These paid internships will last approximately 10 weeks starting June 7th, 2027 through August 13th, 2027. This job will be based at the Geysers power plant located at 10350 Socrates Mine Road, Middletown, CA 95461. Interns will work on specific projects, designed to help them gain real-world, hands‑on experience working independently under an assigned supervisor and technical mentor.

Job Responsibilities

Assist the Chemistry Department in a variety of chemical process control and monitoring efforts for The Geysers, which may include for example:

• Work alongside Chemical Engineers on projects including: Plant Performance, Historical Analysis, and/or Chemical Laboratory improvements.
• Learn how H2S Abatement systems operate and conduct studies and audits at different plant locations, and evaluating H2S abatement process salt minimization strategies.
• Building a spreadsheet material balance around a geothermal power plant and develop an overall kinetic equation for the H2S abatement reaction.

The remainder of unloaded intern time will be utilized in assisting lab personnel in analytical laboratory tasks including field sampling, chemical analyses and data entry, which may include:

• Utilize lab equipment including wet chemistry, atomic absorption, liquid chromatography, spectrophotometry, and gas chromatography. Analyze geothermal steam and cooling water samples including iron, hydrogen sulfide, ammonia, and other geothermally sourced chemical species.
• Perform site visits with Calpine personnel at local plants to learn the environment and activities in them and assist in troubleshooting H2S abatement system problems.

The above statements reflect the general details considered necessary to describe the essential functions of the job and are not to be construed as a detailed description of all the work requirements that may be inherent in the position.

Job Requirements

• Legally eligible to work in the U.S. now and in the future for any company
• Candidate should have completed coursework in their junior year in engineering science, including chemical engineering coursework in Chemical Process Analysis, Transport Phenomena, and chemistry coursework in General Chemistry with lab, and Quantitative Analysis with lab.
• Candidate should be familiar with Microsoft Office Tools software (Word, Outlook, Access, PowerPoint, and Excel (& preferably VBA as well)), willing to work as a team with good writing and communication skills.
• The candidate should also be willing to work as a team with good writing and communication skills. Intern must hold a valid driver’s license, and have the ability to drive mountainous, winding, narrow roads. Work environment includes an office setting as well as outdoors in an industrial/power plant setting.
• Strong work ethic and initiative
• Good academic standing
• Work schedule is 4×10 (Monday — Thursday)

Constellation is proud to be an equal opportunity employer and employees or applicants will receive consideration for employment without regard to: age, color, disability, gender, national origin, race, religion, sexual orientation, gender identity, protected veteran status, or any other classification protected by federal, state, or local law.