03-10-2018, 05:43 AM
more power available at the array than you can harvest
Diversion load is useful here. Most common is hot water; there are DC heater elements for retrofitting an electric water heater. If the inverter is big enough, you can also drive an electric water heater directly.
Pumping water up a hill can also be useful.
Not all storage need be in the form of electricity (batteries). Easiest if the controller has a "diversion control" output, otherwise use a voltage controlled switch (VCS-1AH or similar) tuned to the float voltage of your battery plant.
Diversion load is useful here. Most common is hot water; there are DC heater elements for retrofitting an electric water heater. If the inverter is big enough, you can also drive an electric water heater directly.
Pumping water up a hill can also be useful.
Not all storage need be in the form of electricity (batteries). Easiest if the controller has a "diversion control" output, otherwise use a voltage controlled switch (VCS-1AH or similar) tuned to the float voltage of your battery plant.