Symbium supports all residential rooftop solar and battery storage projects for both owner-builders and contractors, including rooftop solar only (PV), solar with battery storage (PV + ESS), and battery storage only (ESS). This includes new installations and additions to existing systems.
Rooftop solar
Symbium supports new rooftop solar installations and additions to existing PV systems, including projects with service panels without a main breaker, new sub-panel installations, and microgrid interconnect devices (MIDs), also known as backup initiation devices.
Building-integrated photovoltaic (BIPV) installations are also supported. Note that some jurisdictions may choose not to activate BIPV permitting in Symbium. Contact your city or county directly to to request activation.
Battery storage
Symbium supports the following battery storage configurations, or a combination thereof:
- AC-coupled (ESS) battery systems. Battery system with a dedicated battery inverter, including ESS-only installations and additions to existing solar systems.
- DC-coupled battery systems. Battery system sharing a hybrid inverter with the PV array.
- Battery expansion packs. Additional capacity added to an existing battery system with no new inverter.
Additions to existing systems
Symbium supports additions to existing rooftop solar and battery storage systems, including adding battery storage to an existing PV system, expanding an existing battery system with expansion packs, and adding solar to a property with an existing battery storage installation. Additions are treated as separate permit projects in Symbium.
Service panel upgrades
Whether a service panel upgrade requires a separate permit is determined by your jurisdiction. See this article for more information.
Hawaiian tie-ins
Symbium supports Hawaiian tie-in configurations, where all loads are transferred from the main panel to a backed-up sub-panel.
Owner-builder availability
Some jurisdictions may choose not to activate solar and battery permitting for owner-builders in Symbium. If this option is not available to you, contact your city or county directly to request activation.