Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

quaint

(3,509 posts)
Fri Jul 23, 2021, 07:35 AM Jul 2021

The Progressive Case for the Poseidon Desal Plant in HB

LiberalOC
[snipped proof of drought paragraphs]
Will this desal plant affect the marine life environment? Of course it will. But no worse than the wildlife dependent on the fresh water from drying-up resources. Desalination technology is currently used in more than 21,000 locations worldwide. Time to add OC to the list.

Carlsbad has been online since 2015 and the required mitigation still has not been constructed due to delays in state permitting. Guaranteeing that the HB desal plant mitigate for a period commensurate with its operating life has to be a chip on the table for our government leaders to leverage before agreeing to let the plant move forward. But it’s time to cut the red tape.

The people who complain the loudest about Poseidon’s investors making money on this plant really don’t seem to understand the high cost of developing this type of facility. If water ratepayers were to fund the development of a public desal plant, the increase in rates to do so would likely hit hundreds of dollars per household per year for 30 years or more. Water from the desal plant in HB will not triple the price of water; the price didn’t triple in Carlsbad.

Opponents continue to use a 2016 County report that says our current water needs will be met without desal until 2056. A lot has changed in the five years since this water needs report came out. After reading story after story about water resources evaporating before our eyes, I don’t think we can wait until 2056 to address our water crisis.
4 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
The Progressive Case for the Poseidon Desal Plant in HB (Original Post) quaint Jul 2021 OP
Thermal desalinization plants can use Turbineguy Jul 2021 #1
That's no doubt good news, but I am ignorant about How Things Work. quaint Jul 2021 #2
Thermal desalinators boil water Turbineguy Jul 2021 #3
Great information, thank you. quaint Jul 2021 #4

Turbineguy

(38,332 posts)
1. Thermal desalinization plants can use
Fri Jul 23, 2021, 09:29 AM
Jul 2021

low quality heat such as low pressure (and temperature) steam turbine bleed or gas turbine exhaust that has already been through a boiler.

quaint

(3,509 posts)
2. That's no doubt good news, but I am ignorant about How Things Work.
Fri Jul 23, 2021, 10:31 AM
Jul 2021

I am very interested, though. Could you provide or link to a dummy's explanation? Thank you.

Turbineguy

(38,332 posts)
3. Thermal desalinators boil water
Fri Jul 23, 2021, 12:23 PM
Jul 2021

at lower than atmospheric pressures and lower than 212 deg F. This makes them able to use "waste heat".

Found this:

https://condorchem.com/en/blog/evaporation-systems-water-desalination/

Latest Discussions»Region Forums»California»The Progressive Case for ...