With the new energy tower technology, Perfikot naturally expanded it throughout the Northern Territory.
The existing energy towers only needed to have new temperature control barriers added, which was simply welding a few cooling plates for modification, not a major project.
Producing these cooling plates inscribed with magic arrays was also very simple for factories; just make the molds and get the production line running, it's not a troublesome task.
For really rudimentary conditions, you could assemble two flat steel plates, get a cooling copper pipe, coil the pipe, and weld it to the back of the steel plate — using iron pipe and iron board could work in a pinch too.
The only ones who might need to put in a bit more effort would be the mages, as drawing a magic array is a meticulous task, and they could only work manually. Extensive repetitive work was naturally unacceptable for mages who had always considered themselves superior.
