Solar Lattice

Product

ASE DER Gateway

ID
prod:ase-der-gateway
IRI
https://solarlattice.org/kb/prod/ase-der-gateway
Status
active
Also known as
CA Rule 21 Gateway
Category
Monitoring and communications
Make
ase
Product level
family

The ASE DER Gateway is a communications gateway that links a distributed energy resource site to the utility headend system and to DER aggregators. It is sold as a CA Rule 21 gateway and is described as SunSpec certified for IEEE 2030.5, with a CSIP-certified aggregator client. On the utility side it can use IEEE 2030.5, DNP3 or IEC 104. On site it talks to smart inverters or energy management systems over Modbus, DNP3 or IEEE 2030.5. Every gateway has to be registered with the kalki.io device management portal. Through that portal, firmware, security patches, licenses and configuration files are updated remotely, and events and alarms are monitored. Kalki.io also gives role-based remote maintenance access to the programming ports of field devices such as inverters and meters. ASE obtains and manages the SunSpec X.509 IEEE 2030.5 certificate. The customer has to get the utility's permission to connect to the utility DER server. Some models ship with an AT&T cellular connection already configured, and data overages are billed extra.

<!-- review notes

Claims

manufactured_by

c1 drafted · lead ASE Telemetry proposed

review note: support check: partial - Passages show ASE/Kalkitech provides the gateway and kalki.io, but don't explicitly state ASE Telemetry as the maker or the org name.

certified_to

c2 drafted · lead IEEE 2030.5 proposed

Described as SunSpec Certified IEEE 2030.5 DER gateways.

uses_protocol

c3 drafted · lead IEEE 2030.5

Used toward the utility headend and DER aggregators, and also to on-site DER devices.

c4 drafted · lead Common Smart Inverter Profile

CSIP-certified IEEE 2030.5 aggregator client.

c5 drafted · lead DNP3

Available both toward the utility side and toward on-site DER devices.

c6 drafted · lead Modbus

Used to talk to on-site devices such as smart inverters or EMS.

c7 drafted · lead Cellular data

AT&T cellular connection comes pre-configured only in select DER Gateway models; data overages are billed extra.

requires

c8 verified · fact Kalki.io device management proposed

All DAS/DER gateways are to be registered and connected to the kalki.io portal.

verified by: review-workflowverified on: 2026-10-24

implements

c9 drafted · lead Remote firmware update

Through kalki.io: firmware, security patches, licenses and configuration files are updated remotely.

c10 drafted · lead Remote maintenance access proposed

Role-based remote access to field device programming ports over a secured link.

c11 drafted · lead Remote inverter control proposed

Lets the utility monitor and control DER assets through the gateway's IEEE 2030.5 aggregator client.

Data