MCY Mercury NZ ( MRP Mighty River Power)

[fish]

Do you want to know what the cheapest mass stored energy device is?

Drum roll please.... It is a lake.

Boop boop de do
Marilyn

What a star
Cheapest by far-and thats where mcy obtains most of its energy .
MCY are building with Tesla experimental battery storage.
I think the cost to mcy is a drop in the ocean and it will gain a lot of information.
For instance under a wet winter they could purhase surplus electricity for a pittance at night and release it direct into Auckland at peak times and potentially make a profit.Other uses might be if there is a transmission fault....etc