[Ian Ringrose][1]'s [answer][2] explains that it is cheaper and less-risky for an oil-rich Arab state to build oil- or natural gas-fueled power plants than nuclear power plants.

In addition to the two non-Arab muslim countries (Iran and Pakistan) mentioned in the original post, two other non-Arab countries ([Turkey][3] and [Bangladesh][4]) are currently building Russian-designed nuclear power plants.  The Russian deals involve borrowing money to pay high capital costs.  For example, the Bangladesh deal includes borrowing eleven billion dollars with a variable interest rate that is 1.75 percentage points higher than LIBOR, and a 28-38 year repayment period.

The *Koran* condemns [usury][5], as opposed to trade.  Arab countries therefore avoid interest-bearing loans.  This makes it very difficult for oil-poor Arab countries to finance nuclear power plants.


  [1]: https://politics.stackexchange.com/users/4800
  [2]: https://politics.stackexchange.com/questions/1872#10041
  [3]: https://www.world-nuclear.org/information-library/country-profiles/countries-t-z/turkey.aspx
  [4]: https://world-nuclear-news.org/NN-Bangladesh-Russia-ink-12.65-billion-Rooppur-plant-deal-29121501.html
  [5]: https://islam.stackexchange.com/questions/tagged/riba