Alt Energy to power the tank

[spreerider]

you can use a computer UPS for short term power outages to run heaters and pumps but lights would kill one in hours.

best method is to get a small honda genset and use that in the event of an outtage,

if you used a bunch of solar pannels and a battery bank and an inverter you could feed power back into the grid on bright days and get a credit from bchydro then get a slight decrease in consumption when its cloudy.