System Modes Overview; Grid Tie; Clean Backup - Generac Power Systems XVT076A03 Installation And Owner's Manual

System Operation

System Modes Overview

Generac PWRcell offers several system modes for vari-
ous installation configurations, markets, and applications.
Connected REbus devices work together to manage the
distribution of power based on the selected system
Priority

Grid Tie

Support local
1
loads.
2 Export to grid.
3 –
4 –
Net-metering solar energy without a battery.
Keep batteries charged using only solar power.
Keep batteries charged as much as possible.
Use grid as little as possible.
Export maximum power including stored energy.
Grid Tie
In Grid Tie mode, the PWRcell Inverter functions as a
conventional grid-tied inverter system. The system
powers local loads and when generation exceeds load
demand, excess power is exported to the utility for net
metering and other credits.
NOTE: Grid Tie is intended for use with systems that do
not include a PWRcell Battery. For systems where a
PWRcell Battery will be connected at a later date,
operate in Grid Tie mode until the battery is installed.

Clean Backup

NOTE: Grid power is not used to charge batteries in this
mode.
See Figure 7-3. In Clean Backup mode, the inverter
prioritizes keeping the battery charged and ready for a
grid interruption using solar power only. If the battery is
not fully charged, the inverter uses all available solar
power to charge the battery. PWRcell Batteries will not
export to grid in this system mode.
See Figure 7-4. When the battery is fully charged, solar
power will flow to local loads and the grid.
40
Table 7-1. Most Common System Inverter Modes
Clean Backup
Charge batteries
from solar only.
Support local loads.
Export to grid.
–
Table 7-2. Optimal Configuration for Goal
Goal
mode. Some modes interact with PWRcell Batteries to
store power and/or balance production and consumption.
See and
Table 7-1
system modes.
Priority Backup
Charge batteries from
Support local loads.
solar.
Charge batteries from
grid.
Support local loads.
Export to grid.
Optimal Inverter Configuration
Figure 7-3. Clean Backup (1 of 2)
Figure 7-4. Clean Backup (2 of 2)
Installation and Owner's Manual for Generac PWRCell Inverter
for an overview of available
Table 7-2
Self Supply
Exports maximum
amount of power
using any energy
Charge batteries
Charge batteries
from excess solar
from solar.
Export to grid.
–
Grid Tie
Clean Backup
Priority Backup
Self Supply
Sell
Sell
available.
energy.
009956
009957