Construction crews last week prepared a concrete slab to serve as a staging area for the replacement of Limerick's six huge transformers, a $90 million job that will take about two years to complete.
The improvements to the transformers, which convert electricity for transmission on big power lines, are only one component of a complicated effort to "uprate" the plant's output, adding 170 megawatts of generating capacity to each unit. Along with earlier upgrades, the improvements will expand Limerick's total capacity to 2,600 megawatts - 23 percent more power than it produced when the two units were completed in 1989.