Good morning sir/ma,
As a graduate of computer science, I am aware of how versatile I can be in any industry.
I am proficient in using all the Microsoft office tools, during my IT days I was known to be a fast learner so learning about energy will be a walk in the park.
I am efficient and effective and the best man for the job.
I look forward to hearing from you 
Regards,
Udonsi Tessy