Which means that if this rate of installation continues, in 20 years you'd have replaced about 100% of the power requirements of today in nameplate values- but

Which means that if this rate of installation continues, in 20 years you'd have replaced about 100% of the power requirements of today in nameplate values- but the actual production is at best 20%-30% of that value. So in 20 years you would have offset say 30% of that 27% of emissions due to electricity generation: so 8% of todays' emissions. In 2040. Is this your grand plan to save earth from an existential threat? If we installed nuclear capacity for 200% of today's power generation, instead, we'd have enough spare capacity to convert transport, heating and some industrial processes to electric, reducing our carbon footprint beyond the 30% mark into the 40% or 50%.