General > General Technical Chat
Hydrogen battery for the home
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NiHaoMike:
Some apartments near the Texas A&M university work that way for hot water, but without the metering. There's a CHP power plant on the campus that generates a lot more heat than is needed on site, so the excess gets sold to nearby areas.
Red Squirrel:
Wow that's really neat did not figure that was actually something already being done. 
jmelson:

--- Quote from: ConKbot on January 20, 2021, 11:34:38 pm ---I'd agree the hydride cannisters look a tad small compared to the energy storage claims,

--- End quote ---
I have some experience with hydride storage tanks.  We used them for an air pollution instrument that was to be operated in an aircraft.  They were LOTS lighter, and were not able to blow out their entire contents instantly like a gas bottle.  We were told (didn't actually measure it) that these tanks at 300 PSI held about as much Hydrogen as a standard tank the same size at 2000 PSI.  They were filled with something like Titanium dust, which adsorbed the hydrogen in tiny surface cracks.  Due to the lower pressure, the tanks were Aluminum, not steel.

Jon
jmelson:

--- Quote from: Red Squirrel on January 21, 2021, 11:19:17 pm ---Heat is what uses the most energy in a home so heat storage could be interesting if turned into an utility.   I wonder, how viable would it be to have "heat service" as an utility.  Instead of gas line coming to the home you have two pipes with heated water, an in and an out.

--- End quote ---
District heating is used in a number of places.  It is quite common in Manhattan, NY, many apartment buildings have district heating.  It is supplied in the form of steam, not circulating hot water.  I think by using steam, they can put water meters on the returning condensate and then bill by usage.

District heating  is apparently also quite common in Russia and Scandinavia.

Jon
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