"... finally explains why the company stated previously they could achieve "optimal" results with a different "power supply" than the one used in the TC test, which would have been a constant at that pump station at that point. "
Constant? These power supplies have a network interface along with a manual adjustment which can adjust amps, volts over the spec range on the fly.
They would probably want a system that would provide different power for the AOT at different outside temperatures and oil types. The whole process needed to integrate the AOT and all the controls for it is another side to this. That would be enormously complicated and presumably involve software and hardware integration and all kind of fiddling around. Even after the contracts are signed I would imagine that kind of thing itself would take months, and presumably longer to optimise it all.
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