18
Operating Mode - selects the operating mode
for the storage system.
• Time of Use - used in areas with high peak rates
during specific times. The grid is used to charge
the batteries during off peak times.
• Self Consumption - maximizes solar self
consumption. The solar is used to power loads
and charge batteries. When there is not enough
solar to power loads the batteries will discharge
to cover consumption. This mode does not use
the grid to charge the batteries.
• Backup - the storage system remains at a full
charge until the grid power is lost. Solar will
work during the grid outage and can be used
to both power loads and charge the batteries
if there is any excess solar to do so. The grid is
also used to charge the batteries.
Fig. 23 Backup buffer
Backup Buffer - Only used in Self Consumption
mode.
▶
Sets a battery reserve so that there is some
capacity remaining for an unsuspected grid
outage. For example, if the backup buffer is set
to 20%, then the batteries will stop discharging
at 20% instead of the default 5% SOC. The
homeowner would have 15% of usable capacity
when the system switches to backup mode.
Time of Use - Allows user to set the high peak
time periods for focused self consumption. Check
with the local utility for the rate schedule.
Fig. 24 Grid enable option
• Grid enable - The storage system will use the
grid to charge the batteries immediately after
the peak hour end time. Default setting is YES.
Changing this setting to NO will cause the
storage system to only charge the batteries
using solar. The risk of using the NO setting
is that the batteries might not be charged up
during the day before the high peak rate period
begins.
• Peak hour start time - the beginning of the
high peak rate time
• Peak hour stop time - the end of the high peak
rate time
• Low tariff charge time - an alternative time
to start charging the batteries from the grid
during a different low peak time. For example,
if there is a low peak period from 10 p.m. to
6 a.m. then the low tariff charge time could
be set to 3:00 a.m. to ensure the batteries
are fully charged before the next higher peak
period begins.
Microgrid
Fig. 25 Re-enable microgrid
This parameter allows the user to set three
different “wake up” time periods for the storage
system in the event of a grid outage. If the battery