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Here is your regular scheduled update from the Holly Plant Decommissioning Project Team:
The TRC, LVI, and Austin Energy team have continued to remove steel and piping from Holly Unit 3. This week’s post details, through the following series of images, the team starting to remove piping and steel components from the boiler structure on Unit 3 now that all asbestos abatement activities have been completed on the unit.
This is a view of the Holly 3 boiler prior to the team starting asbestos abatement activities on Holly Unit 3.
- Holly 3 Boiler
This view shows the boiler being draped with plastic sheathing. The team enclosed the areas where asbestos was removed.
- Holly 3 Boiler
In this view, you can see Holly 4 on the left and Holly 3 next to it with portions of the plastic sheathing removed. The demolition team removes the plastic sheathing when they finish removing the asbestos in the current work areas. Lastly, you can see Holly Units 1 and 2 that were adjacent to unit 3 have been previously removed by the team.
- Holly 3 Boiler
A view of the east or right side of the Holly 3 boiler shows the scaffolding used to assist the demolition team in removing the asbestos.
- Holly 3 Boiler
Workers begin to dismantle the scaffolding used on Holly Unit 3.
- Holly 3 Boiler
The following image shows Holly Unit 3 boiler ready for dismantling. The team finished removing all the asbestos and plastic sheathing. In the far left, Holly 4 boiler is immediately behind Holly 3.
- Holly 3 Boiler
Welders begin to cut the lower portion of the boiler. The demolition team will work upwards until the entire boiler is removed.
- Holly 3 Boiler
A welder cuts a portion of a boiler water tube panel.
- Holly 3 Boiler
Two welders begin cutting another boiler wall panel.
- Holly 3 Boiler
The demolition team continues to cut the left side of the boiler furnace. Notice, the team’s progress in removing the lower portion of the boiler.
- Holly 3 Boiler
Welders are cutting another boiler wall panel.
- Holly 3 Boiler
Workers at the top of the boiler structure continue to remove smaller pieces. These pieces are loaded into a basket and lowered to the ground.
- Holly 3 Boiler
In this view, you can see the progress made by the team in removing the bottom of the boiler. One of the cut wall panels is resting along the right side of the boiler structure and will be moved to the scrap yard.
- Holly 3 Boiler
Welders continue to cut their way up the boiler wall panels. Another worker sprays water over the bottom of the area to keep dust contained and extinguish the hot metal slag.
- Holly 3 Boiler
This is a view looking inside and up towards the top of boiler furnace from the bottom. At the top of the image, you can see the superheater tubes and a wall of tubes that split the furnace into two halves.
- Holly 3 Boiler
This is a view of the opposite side of the furnace highlighting four of the twelve burners that were used to heat the boiler wall tubes inside the furnace.
- Holly 3 Boiler
This is the current view of the Holly 3 boiler from the bottom of the boiler structure.
- Holly 3 Boiler
Lastly, more images can be found in our image gallery. Click Here.
Here is your regular scheduled update from the Holly Plant Decommissioning Project Team:
Demolition activities continue throughout the plant. In the following series of images, you will see the joint Austin Energy, TRC, and LVI team continue to remove piping and steel components from the boiler structure on Unit 4. This is a continuation of the update highlighted in the January blog.
This is a view of the Holly 4 boiler when the demolition team was removing the stack.
Holly 4 Boiler
The following image highlights the team’s progress on the Holly 4 boiler. The team has removed additional boiler wall panels which allow viewers to see through the structure.
Holly 4 Boiler
This view of the boiler structure which the exposed concrete floor at the very top. The team has completed removing the upper portion of the boiler structure.
Holly 4 Boiler
The image highlights the red steam drum vessel and the concrete floor right above it.
Holly 4 Boiler
The welders finished cutting the steam drum which will be removed in pieces after the rest of the team has removed the concrete floor.
Holly 4 Boiler
A worker operates the portable jack hammer which is cracking the concrete floor. Pieces of the floor drop all the way down to ground level. The team will gather and remove the concrete pieces.
Holly 4 Boiler
In this image, you can see that a quarter of the concrete floor on the upper right side of the boiler structure has been cracked and eliminated.
Holly 4 Boiler
At ground level, you can see the concrete pieces that have fallen and accumulated underneath the boiler structure.
Holly 4 Boiler
Looking up from ground level where the boiler furnace used to reside, you can see that the team has left in place only the supporting steel beams. At the very top of the structure, you can see the red steam drum hanging from the structure.
Holly 4 Boiler
Looking at the lower third of the following image and towards the top of the boiler structure, you can see a portion of the red wind box that brought combustion air into the furnace. At the very top, there still remains a portion of the concrete floor that will be removed by the demolition team.
Holly 4 Boiler
In this image looking towards the top of the boiler structure, you can see a portion of the bottom of the air preheater has been exposed. The team will begin to remove the baskets forming the circular part of the preheater.
Holly 4 Boiler
In this view of the entire boiler structure, you can see that the team has removed more of the concrete floor at the top and only a small portion on the left side still remains to be removed.
Holly 4 Boiler
In this view of the top floor of the boiler structure, the team has removed the entire concrete floor exposing the bare steel beams. The steam drum with a circular man hole opening is on the right side of the structure just below the top floor.
Holly 4 Boiler
This is the latest image of the Holly 4 boiler structure. The boiler furnace and its wall panels that comprised the right half side of the structure have been removed exposing the steel structure with daylight coming around the remaining beams. On the far left side towards the top of the structure, a portion of the air preheater is still in place. You can see the team’s progress by comparing this image to the first one in this blog.
Holly 4 Boiler
Lastly, more images can be found in our image gallery. Click Here.
Here is your regular scheduled update from the Holly Plant Decommissioning Project Team:
The TRC, LVI, and Austin Energy team have continued and completed removing one half of the turbine generator building. This week’s post details, through the following series of images, the latest view of the team removing one half of the turbine generator building that housed the four steam turbines and electric generators.
Working on the east end of the turbine generator building, a welder prepares to remove a steel beam.
Turbine Generator Building
With the beam being held by the overhead crane, the welder makes a cut to clear it from the supporting structure.
Turbine Generator Building
The beam is lifted and moved to the scrap yard.
Turbine Generator Building
The demolition team removed the beams and roof covering the truck bay on the east end of the building. In the middle of the image, you can see a section of the roof has been removed by the team.
Turbine Generator Building
A welder cuts the opposite end of the roof section.
Turbine Generator Building
The team is cutting the building roof width wise at every fourth column. Notice the gap that appears in the roof in the middle of the image. This indicates the steel that has been cut and removed by the demolition team in preparation for pulling the building section to the right of the gap.
Turbine Generator Building
An excavator is set up with cables attached to the building section.
Turbine Generator Building
The excavator pulls on the cables causing the building section to collapse forward.
Turbine Generator Building
The demolition team has completely removed the building section and the concrete floor is ready to be removed.
Turbine Generator Building
This image shows the collapsed building section over the concrete portion of the remaining structure. Also, Holly 3 is in the background on the left. Lastly, you can see there are still two sections of the turbine generator building that still need to be removed by the demolition team.
Turbine Generator Building
Notice, day light is now entering the turbine hall. The demolition team has finished lowering the steel columns and left them on the concrete floor, as seen in the background towards the middle of the image. The photographer took the image from the interior of the turbine generator building and facing east.
Turbine Generator Building
In similar fashion as described previously, the team uses the excavator to bring down the second section of the building.
Turbine Generator Building
The excavator grabs and pulls portions of the building off of the turbine hall concrete floor.
Turbine Generator Building
In the lower middle of the following image, a welder cuts one of the steel columns. The rest of the demolition team is preparing to pull the building section down over the concrete floor.
Turbine Generator Building
With cables attached to the middle columns at the top, the excavator pulls on the cables and the building section begins to tilt forward. A water truck is parked in the middle ready to spray water on the collapsed roof debris to contain the dust particles.
Turbine Generator Building
The building is quickly coming down and is half way towards landing on top of the concrete floor.
Turbine Generator Building
The building section is now totally collapsed over the concrete floor. The demolition team is ready to remove the debris and the steel structure.
Turbine Generator Building
Compare the following image to the last image in the previous week’s blog. Holly 3 is on the far left. However, you can see that only half of the turbine generator building is still standing. The remaining part of the building structure is adjacent to Holly 3 and Holly 4.
Turbine Generator Building
Lastly, more images can be found in our image gallery. Click Here.
Here is your regular scheduled update from the Holly Plant Decommissioning Project Team:
Demolition activities continue throughout the plant. In the following series of images, you will see the joint Austin Energy, TRC, and LVI team start to remove turbine generator building that housed the four steam turbines and electric generators.
This image is of the south wall of the turbine generator building before the demolition team began any major cutting of the walls. The Holly 3 boiler is on the left side of the image.
Turbine Generator Building
Two workers on lifts begin to cut the steel siding on the south wall of the building. The elevator shaft that was between the Holly 1 and 2 units and rising past the roof is still in the center of the image.
Turbine Generator Building
A worker operating the shearer begins to cut the steel columns that formed the elevator shaft.
Turbine Generator Building
The shearer moves to the right and begins pulling on the steel columns.
Turbine Generator Building
The steel column collapses and half of the shaft structure begins falling.
Turbine Generator Building
The entire elevator shaft structure begins to tilt downward as the shearer pulls the columns.
Turbine Generator Building
A worker operating the excavator now approaches the shaft from the left side.
Turbine Generator Building
The excavator pulls the last remaining portion of the elevator shaft. A worker continues to spray water to keep dust particles from becoming air borne.
Turbine Generator Building
The south wall of the building is beginning to disappear as the demolition team removes more sections of siding. The Holly 3 boiler is on the left side of the image. On the right side of the image, the team is beginning to remove the roof at the end of the building.
Turbine Generator Building
Workers, on top of the right side or east end of the building, are cutting the roof panels. The wall siding has been removed by the demolition team. The roof and walls cover the east end truck bay. Additionally, one of the electric generators is still in the truck bay.
Turbine Generator Building
The demolition team continues to remove wall siding from the north side of the building. Workers, on the right side of the image behind the excavator, are on lifts removing siding as they work their way down the side of the building. The excavator at the front is pulling siding panels opening the walls of the building.
Turbine Generator Building
Welders continue to cut and remove the roof panels exposing the roof to the structural steel columns that surround the building.
Turbine Generator Building
On the south side of the building, the excavator is used to pull more of the wall siding down to the ground.
Turbine Generator Building
The excavator tears down the yellow brick siding that appears between the steel columns.
Turbine Generator Building
The demolition team tore off the yellow brick siding which is now dropped to the ground.
Turbine Generator Building
A welder cuts one of the steel roof beams on the east end of the building.
Turbine Generator Building
The crane lifts and moves the steel beam to the scrap yard.
Turbine Generator Building
This is the current view of the turbine building looking in the direction where Holly units 1 and 2 used to stand. The opening in the center of the image will be expanded to allow the shearer and excavator to enter the lower floors of the turbine building and remove all of the remaining equipment.
Turbine Generator Building
Lastly, more images can be found in our image gallery. Click Here.
Here is your regular scheduled update from the Holly Plant Decommissioning Project Team:
The TRC, LVI, and Austin Energy team have continued and completed removing all equipment from the turbine floor. This week’s post details, through the following series of images, the latest view of the team removing the last of the electric generators off the turbine floor.
This image shows the turbine floor when the demolition team began working on the turbine floor. The turbine generator units shown below from the front to the back are unit 3, unit 2, and lastly unit 1.
Holly 3 Generator
A welder is cutting around the end housing of the Holly 3 electric generator. The rest of the demolition team is preparing to remove the Holly 3 generator.
Holly 3 Generator
The demolition team uses the crane to lift the pedestal which supported the Holly 3 generator exciter.
Holly 3 Generator
The pedestal is on its way to the truck bay for disposal.
Holly 3 Generator
The demolition team will use the overhead crane and rigged the Holly 3 generator rotor for a horizontal pull.
Holly 3 Generator
The Holly 3 generator rotor rests on the floor after the team pulled it out of the generator stator.
Holly 3 Generator
A welder begins cutting the end of the Holly 3 generator stator.
Holly 3 Generator
The team removed the end of Holly 3 generator stator while the stator remains in place. Next, they will cut and remove the top half of the stator.
Holly 3 Generator
The team removed the top half of the Holly 3 generator stator and temporarily laid it on the turbine floor.
Holly 3 Generator
The demolition team moved the Holly 3 generator stator into the truck bay where it will be shipped to a recycling facility.
Holly 3 Generator
A welder is cutting the remaining pipes that are connected to the Holly 4 generator stator.
Holly 4 Generator
A welder pulls his torch and hose to make additional cuts on the Holly 4 generator stator.
Holly 4 Generator
The welder has finished making his cuts and the team has removed the Holly 4 generator coolers.
Holly 4 Generator
The team lifted and stored the Holly 4 generator stator in the truck bay. Workers inspect the interior of the stator to determine the best way to remove the copper windings.
Holly 4 Generator
A welder uses a high temperature burning bar to cut the Holly 4 generator rotor into three sections for easier transport to a recycling facility. The Holly 3 generator rotor is on the left.
Holly 4 Generator
The team took the Holly 4 generator rotor sections to the scrap yard for shipment. The thick rough cut featured in the right hand side of the image was made by the welder’s burning bar featured in the previous image.
Holly 4 Generator
This is the current view of the turbine hall after the team has removed all four of the steam turbines and electric generators. Compare this view to the first image. The team has completed the work on this floor and now will start on removing the building structure and equipment in the lower floors.
Holly 4 Generator
Lastly, more images can be found in our image gallery. Click Here.