760 Tons of New Equipment Placed at Vogtle Unit 3
Monday, May 16th, 2016
Georgia Power announced the placement of more than 760 tons of major components within the turbine island for Vogtle Unit 3 – the stator assembly and the deaerator. The stator assembly, which includes the stator and the stator housing, weighs more than 460 tons. The component was constructed in Japan and represents two of the four major subcomponents of the main generator. The stator is a stationary component of the main generator that works together with the rotor and exciter to generate electricity. The main generator for Plant Vogtle Unit 3 will have a total energy output of 1,117 megawatts and provide enough carbon-free energy to serve hundreds of thousands of Georgia Power customers.
The 303-ton deaerator, developed in South Korea, is nearly 145 feet long and approximately 20 feet high and is one of the largest single pieces of equipment to be installed in the turbine building. The deaerator serves as a purification system for feedwater, removing minerals and other deposits, reducing plant maintenance and operating costs and preventing corrosion. Both pieces were lifted into place by the heavy lift derrick, one of the largest cranes in the world.
In addition to the recent placements, progress continues throughout the site with multiple milestones achieved within the last 30 days. Other major, recent construction achievements include the safe placement of six new shield building panels for Unit 3, delivery of the first of eight reactor coolant pumps and continued progress on the Unit 4 cooling tower which is nearing a completed height of 601 feet. The company recently uploaded new images of these milestones and other work at the site over the last 30 days at the company's online photo gallery. Additionally, a new flyover of the Unit 3 Nuclear Island is available on the Georgia Power YouTube Channel.
Expanding Plant Vogtle is part of Georgia Power's long-term plan to provide safe, clean, reliable and affordable energy to meet the growing energy needs of Georgia. The Vogtle expansion is the largest construction project in Georgia with more than 5,000 workers onsite today and 800 permanent future jobs. When the new units join the existing two units already in operation, Plant Vogtle is expected to generate more electricity than any other U.S. nuclear facility, enough to power more than one million homes and businesses.
The projected overall peak rate impact of the Vogtle nuclear expansion continues to be significantly less than when the project was originally certified due to lower financing rates, other benefits the company has proactively pursued and the fuel savings of nuclear. The company projects that, even with the new costs and schedule forecast, the peak rate impact will be approximately 6 to 7 percent – which is nearly half of the original rate impact forecast. Of this, approximately 4.5 percent is already in rates. Once the new units come online, they are expected to put downward pressure on rates and deliver long-term savings for Georgia customers.