SolarEdge Home Battery - New Label Requirements; Guidance Related to PV DC Oversizing of Solaredge Systems

Version 6.2, February 2025
SolarEdge Solution Connection and Configuration Guide for Australia 46
AS/NZS 4777.2:2020 Residential STC kWp Calculations
New label requirements
To align with the new testing requirements and product definitions contained within AS/NZS
4777.2:2020. All SolarEdge inverters will have their labelling updated to reflect the new requirements
illustrated in Table 1.
Depending upon additional hardware components installed, the inverter and overall system will fall
into one of three definitions across two main categories:
1. Non-multiple mode inverters – incapable of providing backup. HD-Wave, HD- Wave Genesis,
HD-Wave EV and Residential 3Ø inverters.
2. Multiple mode inverters – capable of providing backup. The Home Hub inverter with Backup
Interface.
Inverter/System
Definition
Backup
System Configuration
Product Code
Suffix
PV & Battery Inverter
-
Solar + DC-Coupled Battery
SExxxxH
AUB
Multiple Mode Inverter
Y
Solar + DC-Coupled Battery + Backup
SExxxxH-MM
Table 1: Definitions and corresponding Product Code suffix designations.
Guidance related to PV DC oversizing of SolarEdge systems
To SolarEdge inverters provide the ability to significantly oversize the system's PV array once a
battery is connected to facilitate improved battery charging performance.
The following table details the maximum volume of PV DC Capacity and therefore number of STC's,
which can be generated based on the inverter capacity and associated hardware components.
Home Hub Inverter
STC Calculation for PV Oversizing
PV only
133.3% x inverter AC output
PV + Battery
Up to 300% (or22kW) x inverter AC output (See Table 3)
with battery
Genesis
STC Calculation for PV Oversizing
PV only
133.3% x inverter AC output
PV + Battery
Up to 200% x inverter AC output (Inverter + DC Combiner)
3Ph Booster
STC Calculation for PV Oversizing
PV only
133.3% x inverter AC output
PV + Battery
133.3% x inverter AC output
Table 2: System Definition and STC Calculation for PV oversizing
Home Hub as a multiple mode inverter allows greater PV DC oversizing than the non-multiple mode
inverters, such as the Genesis inverter.
When adding extra PV DC capacity for battery charging, we suggest using the following
methodology:
1. Oversize the inverter by 133.3% in line with the CER recommendation.
2. Connection of a battery will all up the maximum allowable level specified on the Home Hub or
Genesis inverter datasheet.