Wampana sold 19% of renewable energy shares for 71,000 billion Rials The Iranian Power Plant Management Group Company of Maafana announced the publication of a public tender for the transfer of 19% of the shares of Maafana for the production of renewable energy (equivalent to 38 million shares) at a total base price of 71,063 billion Rials in the form of 25% cash and the rest in interest-free payments for 4 years.