Showing posts with label energyHydrogen. Show all posts
Showing posts with label energyHydrogen. Show all posts

Wednesday, December 4, 2024

Charlotte, NC: 1957 1.2gw Duke Allen Steam Plant being replaced with batteries

(Satellite)

duke, 2/5

duke, 3/5

safe_image for Duke Energy to knock down coal plant and build its biggest battery yet
"North Carolina, notably, ranks fourth in the nation for installed solar capacity, with nearly 10 gigawatts operating."
Ron Franko shared
Ian Hapsias: The article fails to mention how long it would take to recharge the batteries after they’ve used their 4 hours of capacity.

gem

The "duke, 3/5" photo above is old because it doesn't have the duct work along the side of the smokestacks that goes to the scrubbers and new smokestack. All of the sheet metal construction between the building and the striped smokestacks is probably for particulate removal, and it was probably added decades ago.
gastongazette
The current ash ponds are not lined. As part of the plant closure, "Duke Energy is required to excavate more than 80 million tons of coal ash from open, unlined impoundments at several locations and place the excavated coal ash in onsite lined landfills....Duke’s plans call for the draining and excavation of two coal ash basins at the site and then placing that ash in two double-lined landfills with a leak detection system surrounded by groundwater monitoring wells. The work will take place over the next 17 years."

WFAE
This power plant has 19 million tons of the 80 million tons of coal ash of which Duke has agreed to properly dispose. The problem was that heavy metals such as mercury had leached out of the ponds and into the ground water. "Duke supplied bottled water to neighbors of the Allen plant and other coal ash dumps and in 2017 and 2018 paid $31 million to extend public water lines or add water filters at hundreds of homes statewide."

The plant was served by an industrial spur from the Southern Railroad that goes through Belmont, NC.
1973/76 Belmont Quad @ 24,000


Saturday, February 27, 2021

Hannibal, OH: Long Ridge Energy to burn Hydrogen as well as Natural Gas

(Satellite)

safe_image for Ohio power plant under construction adding hydrogen to fuel mix along with natural gas [paycount 5]
Dennis DeBruler: So they plan to use electricity from solar and wind to split water into hydrogen and oxygen so that they can burn hydrogen to generate electricity for the grid. Why not just feed the solar and wind electricity to the grid? The salt caverns would be the key. At 100%, this would not be an electricity generating plant but an electricity storage facility to help with the cloudy days, etc. If this is the cheapest solution for electricity storage, than storage is a real issue. Also note that the GE turbines can handle just 20% hydrogen. The next sentence that talks about scaling up to 100% doesn't mention the expense of rebuilding or replacing the turbines. Also, everybody is ignoring the incredible danger of handling hydrogen. Someone told me that an oil refinery precisely monitors the flow in its hydrogen pipes to detect leaks. If there is a small hole in a pipe, the jet of hydrogen burns so cleanly that a guy could walk into the jet and be sliced in half before he knew what was happening.

It is a $800m, 485 MW power plant. I assume this plant was originally built because it is close to the Marcellus and Utica shale in East Ohio and the West Virginia panhandle that fracking made productive. But that gas is "wet." Can this plant burn wet gas?

The fad of using the wet gas to make plastic with an ethane cracker has cooled off. The salt caverns that were going to be used for ethane storage for a petrochemical complex have been offered to store hydrogen and/or gas for this project. But the caverns could also support the ethane cracker if it ever does get off the drawing board.

From a satellite image, they are obviously building on brownland. The 1,600-acre site had been used by the Ormet aluminum smelter that once had 1,100 workers. It closed in 2013. It looks like quite a bit of the land has already been redeveloped. This facility must store something that is barged in and then barged back out. But I can't figure out what they are storing.
Satellite

It seems the satellite image is out-of-date and this facility now has the capability to transload between unit trains and barges. And that those buildings may be storing fracking sand.
LongRidgeEnergy