Seeking advice from our aquaponic community regarding power usage and pump usage

Hi everyone, We live in NW Oregon and the weather is mild this winter, so we are going forward with greenhouse projects, to jump start our growing season.   Currently we have been using goldfish,   in a chop system, letting the system idle down in late November, keeping the water flowing, and then jump starting the system in late February or March depending  freezing temps with a scratch built…