DigiCert Secures Australia's Home Energy Grid Links
The National Energy PKI has selected DigiCert to supply digital certificate infrastructure for rooftop solar and battery systems connecting to Australian electricity networks.
Updated on Nov. 2, 2026 in Energy
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The National Energy Public Key Infrastructure (NEPKI) has selected DigiCert to provide digital certificate infrastructure for Australia's energy network. The system allows rooftop solar and battery systems to communicate securely with electricity distribution networks.
Why it matters
With more than 4.2 million Australian homes already fitted with rooftop solar, securing the connections between these devices and the grid is critical to grid stability and to protecting energy infrastructure and consumers. The National Energy PKI provides a consistent national framework for digital identity across the energy sector.
Forty-four solar and battery manufacturers have been onboarded since launch, covering roughly 94% of the Australian market, in a sector serving more than 4.2 million homes with rooftop solar. The launch date and the status of manufacturers yet to be onboarded were not specified.
The players
DigiCert
DigiCert is a digital security company that provides certificate management and device identity services used across many industries.
National Energy Public Key Infrastructure (NEPKI)
NEPKI is a not-for-profit body that runs the national digital identity framework for Australia's energy sector.
The details
DigiCert was chosen through a selection process to supply the digital certificates that allow devices and network operators to verify each other's identities. The infrastructure supports secure communications under the Common Smart Inverter Profile-Australia (CSIP-AUS) standard, and DigiCert's Device Trust Manager automates certificate renewals.
Timeline
Since launch, 44 solar and battery manufacturers have been onboarded to the National Energy PKI.
Big Picture
The National Energy PKI builds on the CSIP-AUS standard by adding a certificate-based identity layer to inverter communications. It positions Australia's distributed solar and battery fleet on a common, verifiable security footing.
Owners of rooftop solar and home batteries will have their systems authenticated through the National Energy PKI when connecting to distribution networks. The change is designed to be largely invisible to households, with certificate renewals handled automatically by the infrastructure.
The takeaway
Securing every connected home battery and solar inverter is becoming as important as keeping the grid itself running, and the consistent national identity framework is a step toward making that protection routine.
Further reading
For broader context on how the grid is changing, explore the Energy section.
Source note: This article includes information reported by ITWire.
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