Rental power plants are also a money making scheme by PPP. Most of the machinery is old, worthless. Barely able to produce / generate Power.
Huge amount of kick back has been received, many large companies (e.g. Siemens) are not allowed to directly bid. They have to go through agents. All agents are connected with PPP politicians. In order to get government contracts you have to pay a very large commission to the intermediary agents. All of them are required to share the proceeds with PPP.