The feasibility of the power plant is not really our concern since Russia is footing the bill. But I'm more interesting with this quote "value of acquiring the nuclear power technology". What do you mean by it, what did we get?
"the value of clean secure energy"
Clean energy aspect of the investment is correct but these days almost every energy investment is clean because they're much cheaper than alternatives. And it's not secure energy if Russia owns and operates it. We just gave Russia another leverage over us. So much for the energy independence.
It is Russia's powerplant through and through. There is no taking over it. Russia will operate it till it's decommissioning.
We have sent students to Russian universities to study nuclear energy and we have required Russia to work with local contractors as much as possible when building the plant so that the nuclear energy ecosystem in the country gets started up. So you get a lot of experience with nuclear energy where there was none before and you kickstart efforts to build your own reactors in the future and do R&D on things like molten salt reactors.
When I say clean and secure energy, I mean secure in the sense that supply can't be interrupted just like Iran interrupts supply from time to time for "maintenance." Also, renewables, while very important, will not solve our problems alone due to their intermittent nature. You need continuous energy sources to smooth over renewable supply cycles and stabilize the overall supply. Batteries are a future option but not advanced enough yet.
It's also not a big leverage that Russia has over us, especially after the construction is complete. Only 50% of the supply is guaranteed to be bought at a certain price. Apart from that you have a setup where Turkiye can buy energy from any source but the nuclear plant can sell only to Turkiye. If Russia were to try to do something funny Turkiye would not buy energy from the plant and Russia would lose on the huge initial investment. If anything, Turkiye has leverage over Russia.
Energy is pretty much the most important topic in the economy and we had our first nuclear plant built with no money spent upfront, to be paid in very reasonable installments in the form of the premium we pay for energy for as short a period as 15 years. We even got transfer of technology in the deal. This project is clearly a huge win for the country and arguing otherwise becomes absurd.
Maybe some will remember that Turkiye had also got the heavy industry around steel started with Russian help back in the day. It is interesting that same thing is happening with nuclear.