Page 1 of 1

Energy storage

Posted: Mar 14 2019 8:29am
by unklegrumpknee
It doesn't have to be a battery!!!!

Phase change material.
Better yet Bio PCM.
Look at phasechange.com

Using this system one can use off peak power for air conditioning at a time when the outside temperature is less getting more " Cold for the buck"
Virtually unlimited cycle life.
The company has installed data to back up their claims of a three year pay back.
And it doesn't have to be an either/ or situation.
A much smaller battery combined with the PCM system could eliminate peak use completely.

Re: Energy storage

Posted: Mar 14 2019 1:28pm
by billvon
unklegrumpknee wrote:
Mar 14 2019 8:29am
Using this system one can use off peak power for air conditioning at a time when the outside temperature is less getting more " Cold for the buck"
Google Ice Bear. It's on the market now.

Re: Energy storage

Posted: Mar 15 2019 12:42pm
by unklegrumpknee
Thanks Bill
What they offer is not new technology.
The use of ice has been practiced for a long time. That's where the term ton of air conditioning started. A ton of ice a day.
A very dense storage system.

But think, doesn't it make more sense to store the energy at a temp closest to it's use.
No additional moving parts.
Less Delta T for the AC unit.

Re: Energy storage

Posted: Mar 18 2019 2:10pm
by billvon
unklegrumpknee wrote:
Mar 15 2019 12:42pm
But think, doesn't it make more sense to store the energy at a temp closest to it's use.
Not for A/C systems. They need a more significant temperature difference for effective cooling.

But for things like refrigerators (maintaining one constant temperature, with one level of heat flow in and out) they are great.