Your first step to landing an interview is creating a great resume. One way for your resume to really make an impression is to tailor it to the exact power plant engineering job that you want. Study the job description and use the keywords that you see throughout. In most power plant engineering jobs, the details of the job requirements are explicit and may play to exacting requirements.
The next step is to include details about your project experience and outline your exact roles and contributions to each. Try to incorporate the keywords from the job's description in your explanation of your experience, as long as it sounds natural. Many companies use software to screen resumes, but eventually your resume will be seen by a human resources representative, so make it coherent and succinct.