System builder
Use the system builder to view the components, system overview, and important tips for any Enphase Energy System.
Service panel voltage
It is the Voltage (V) rating of the main breaker in the service panel.
A third party transformer will be added to make the system compatible with 220V grid.
The system with IQ Battery will only backup two of the three phases.
You've selected a grid-forming system. This means the system will continue to operate, even when the grid is down.
Service panel amperage
It is the current (I) rating of the main breaker in the service panel. If interconnecting PV system into existing service panel, please ensure PV system sizing complies with NEC section 705.12 (B)(2), not to exceed 20% of service panel amperage rating. Otherwise, a service panel upgrade or line side tap with fused disconnect may be required.
You've selected a grid-tied system. This means the system will only operate when the grid is up.
You've selected a grid-forming system. This means the system will continue to operate, even when the grid is down.
Please select the option “Off-grid system without utility connection” if you plan to install a standalone/off-grid system without a utility connection.
PV System size is determined by the module wattage and module count input.
Off-grid systems support only up to 15.36 kW AC rating of PV/ 64A continuous in the system. Please reduce the module count.
Off-grid systems support only up to 15.36 kW AC rating of PV/ 64A continuous in the system. Please reduce the module count.
Arkansas, Illinois, Indiana, Iowa, Kentucky, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Montana, North Dakota, South Dakota, Texas, Wisconsin, Hawaii, New York, Massachussetts (MA)
Your state has adopted IEEE 1547:2018. To comply with IEEE 1547: 2018, your storage system needs the new IQ Gateway or an IQ Combiner 4/4C, that integrates the new Gateway.
The IQ Gateway is only compliant with IQ Series microinverters. Please upgrade your microinverters from M Series to IQ7 or IQ8 to ensure your utility allows your system to be interconnected.
Please edit this BOM, select the Solar and Batteries option, and provide details of your panels so we can recommend suitable IQ Series microinverters.
X2-IQ-AM1-240-4 and X2-IQ-AM1-240-4C are the SKUs for IEEE 1547:2018 compliant IQ Combiner 4/4C. If you have either of these you do not need a new combiner. You can find the SKU printed on the unit or in the device details on the Enphase Installer platform. SKU is also available under devices in the Enphase Homeowner app.
If the Envoy installed at your site is powered by a dedicated 120VAC power outlet, it is an Envoy-R or Envoy-S Standard.
You may require additional IQ Cable drops if some of your modules in a branch circuit are separated by additional gaps (due to obstacles, inter-row gaps, etc.)
Number of extra QD Cable drops
You may require additional QD Cable drops if some of your modules in a branch circuit are separated by additional gaps (due to obstacles, inter-row gaps, etc). This would typically be 5% of the module count.
Select "Yes" if you are center-feeding branch circuits to reduce voltage rise. Enphase recommends center-feeding branch circuits to minimize voltage rise in fully populated branches. To center-feed a branch, divide the circuit into two sub-branch circuits protected by a single overcurrent protection device (OCPD).
Learn more
IQ Combiner 4C and IQ Combiner 5C are compatible with the selected system configuration. There is no difference in functionality between the two units when used in a Solar Only configuration.
They are also compatible with Enphase batteries if you choose to add them in the future. However, the IQ Combiner 4C is designed to work with the IQ System Controller 2 and IQ Battery 3T/10T while the IQ Combiner 5C is designed to work with the IQ System Controller 3/3G and IQ Battery 5P.
The Enphase IQ Load Controller, when used in conjunction with the IQ System Controller, enables control of up to two loads running 240VAC L-L or shedding of up to two solar circuits when operating in an off-grid mode with the Enphase energy management system.
The IQ Load Controller can also be used for controlling four loads running 120VAC L-N.
Up to two IQ Load Controllers can be integrated with each IQ System Controller on a site.
Examples of loads you may want to control include: pool pumps, hot tubs, water pump, and air conditioners.
The Enphase IQ Load Controller, when used in conjunction with the IQ System Controller, enables control of up to two loads running 240VAC L-L or shedding of up to two solar circuits when operating in an off-grid mode with the Enphase energy management system.
The IQ Load Controller can also be used for controlling four loads running 120VAC L-N.
Up to 2 IQ Load Controllers can be integrated with each IQ System Controller on a site.
Examples of loads you may want to control include: pool pumps, hot tubs, water pump, and air conditioners.
High electric noise environment
Electrical noise is a high-frequency interference in the frequency spectrum. Noise can be transmitted and picked up by a power cable acting as an antenna, or it can be carried through the power line. Electrical Noise can originate from loads or other devices such as air conditioners, motors heat pumps, industrial machines etc. in commercial and industrial settings and may cause communication disturbances.



The components you’ll need
Enphase products
An overview of the system
System summary
System wiring
Refer to the design guide for detailed wiring and planning information.
Important tips to consider
System notes
You've selected a grid-tied system. This means the system will only operate when the grid is up.
You've selected a grid-forming system. This means the system will continue to operate, even when the grid is down.
PV system size is determined by the module wattage and module count input.
Exceeds normally allowed capacity (kVA). Requires special DNO approval for system installation.
For systems greater than kVA, an off the shelf compliant central protection relay must be added to the system.
For systems over 15 kVA single phase and 30 kVA three-phase, please contact enphase for a design review: drs_au@enphaseenergy.com
You may require additional IQ Cable drops if some of your modules in a branch circuit are separated by additional gaps (due to obstacles, inter-row gaps, etc). We recommend to use 1 additional drop per branch circuit.
Select "Yes" if you are centre-feeding branch circuits to reduce voltage rise. Enphase recommends centre-feeding branch circuits to minimise voltage rise in fully populated branches. To centre-feed a branch, divide the circuit into two sub-branch circuits protected by a single overcurrent protection device (OCPD).
The PV module pairing is not applicable for STC rebates in Australia/New Zealand with the selected microinverter.
Exceeds normally allowed capacity (kVA). Requires special DNO approval for installing IQ Batteries.
For systems greater than kVA, an off the shelf compliant central protection relay must be added to the system.
For systems over 15 kVA single phase and 30 kVA three-phase, please contact enphase for a design review: drs_au@enphaseenergy.com
To prepare this site for the easy addition of IQ Batteries in the future, install an IQ System Controller 3 INT instead of the solar-only IQ Gateway, Solar Distribution Board, IQ Relay, and CTs components. If you have any questions or require design review assistance, please contact Enphase Support.
Exceeds normally allowed capacity (kVA). Requires special DNO approval for installing IQ Batteries.
For systems greater than kVA, an off the shelf compliant central protection relay must be added to the system.
The components you’ll need
Enphase products
Third-party products
This list of equipment is an estimate only. Your actual equipment requirements may vary.
An overview of the system
System summary
System wiring
Important tips to consider
System notes
Service panel voltage
It is the Voltage (V) rating of the main breaker in the service panel.
Service panel amperage
It is the current (I) rating of the main breaker in the service panel. If interconnecting PV system into existing service panel, please ensure PV system sizing complies with NEC section 705.12 (B)(2), not to exceed 20% of service panel amperage rating. Otherwise, a service panel upgrade or line side tap with fused disconnect may be required.
PV System Size
PV System size is determined by the module wattage and module count input.
Typical PV module lengths will be in the range of 1.8m to 2.4m.
Number of extra QD Cable drops
You may require additional QD Cable drops if some of your modules in a branch circuit are separated by additional gaps (due to obstacles, inter-row gaps, etc). This would typically be 5% of the module count.
You may require additional IQ Cable drops if some of your modules in a branch circuit are separated by additional gaps (due to obstacles, inter-row gaps, etc.)
Center feeding
Select "Yes" if you are center-feeding branch circuits to reduce voltage rise. Enphase recommends center-feeding branch circuits to minimize voltage rise in fully populated branches. To center-feed a branch, divide the circuit into two sub-branch circuits protected by a single overcurrent protection device (OCPD).
Learn more
High electric noise environment
Electrical noise is a high-frequency interference in the frequency spectrum. Noise can be transmitted and picked up by a power cable acting as an antenna, or it can be carried through the power line. Electrical Noise can originate from loads or other devices such as air conditioners, motors heat pumps, industrial machines etc. in commercial and industrial settings and may cause communication disturbances.
The components you’ll need
Enphase products
Third-party products
This list of equipment is an estimate only. Your actual equipment requirements may vary.
An overview of the system
System summary
System wiring
Refer to the design guide for detailed wiring and planning information.