keep in mind that almost all the cost of pv plants is construction (capex), while most of the cost of nuclear is during operation and decommissioning (opex)
so 20 cents per watt capex is close to 60 cents per watt total, twice the price of pv
as emmaengineer pointed out, though, you did the division backwards: it's 0.20 watts per dollar, not 0.20 dollars per watt. the correct quotient is 490ยข per watt, or maybe closer to 15 dollars per watt including opex
keep in mind that almost all the cost of pv plants is construction (capex), while most of the cost of nuclear is during operation and decommissioning (opex)
so 20 cents per watt capex is close to 60 cents per watt total, twice the price of pv
as emmaengineer pointed out, though, you did the division backwards: it's 0.20 watts per dollar, not 0.20 dollars per watt. the correct quotient is 490ยข per watt, or maybe closer to 15 dollars per watt including opex