Thank you for providing us with this feedback, though we are sorry to hear that we didn't live up to your expectations.
The entry ticket is for a self-guided audio tour, which is an app that you can download onto your phone. While this is a self-guided tour, our staff is on hand at the front desk and they are always happy to answer any questions you may have during your visit. We are quite surprised to hear that no one was there to answer questions - there is always at least one staff member on duty at the front desk specifically for this purpose. If you still have any questions we would be more than happy to answer them if you send us an email to firstname.lastname@example.org.
Due to safety and security reasons it is not possible to go into the actual plant (even our exhibition staff cannot enter). You can though see into the high and low pressure turbine halls from the third floor, and from the outer observation decks you can see the pipes, separation tanks, cooling towers, and scrubbing tower.
We hope that you enjoyed the rest of your stay in Iceland, and thank you for visiting us.