Proven and Robust Communication for Smart Metering, Smart Grids and IoT
The G3-Alliance
Our Alliance is dedicated to advancing two communication technologies: G3-PLC and G3-Hybrid. These technologies, standardized under ITU-T G.9903, utilize existing powerline infrastructure as well as radio for cost-effective data communication.
G3 Standard:
A Robust Alternative to Wi-SUN and PRIME for Smart Metering & IoT
G3 offers cost-effective, secure, and long-range communication for smart metering, grid automation, and industrial IoT; outperforming technologies like Wi-SUN and PRIME in many deployments. As an open and standardized solution, G3 enables seamless connectivity, interoperability, and scalability across energy networks worldwide.
MEMBERS
CERTIFIED DEVICES
PRODUCTS DEPLOYED
Why Choose G3 standard for Smart Metering?
- Interoperability
Fully compatible with smart meters and grid devices from multiple vendors. - Long-Range Communication
Overcomes coverage limitations of RF only based technologies like Wi-SUN in urban and underground environments. - Cybersecurity & Reliability
Ensures robust, encrypted communication over existing power lines. - Proven Technology
Deployed in millions of smart meters and advanced metering infrastructure (AMI) networks globally.
Cost effective
Minimizes infrastructure and maintenance costs by communicating over the existing powerlines.
Robust
Designed for harsh network conditions; G3-Technologies enable a robust mode for reliable communication under noisy conditions.
Interoperable
International standard with strong certification program guarantees interoperable solutions.
UPCOMING EVENTS
LATEST NEWS
How Multi-Vendor Interoperability Protects Your Long-Term Grid Investments
Smart grid investments last 15–20 years. Vendor strategies often don’t. What happens if your smart grid communication network depends on a single supplier? • Can they still deliver in 10 years? • Can they support security updates? • Can they scale during mass rollout?...
Press Release: G3-Alliance Achieves Record-Breaking 2025 Certifications and Announces Expansion of Certification Program to Battery-Powered Devices
2025 marks a historic milestone for the G3-Alliance, with more than 100 new G3 products and platforms certified during the year — the highest annual number since the launch of the G3 Certification Program in 2014. This achievement brings the total number of certified...
New Whitepaper Release: G3-Hybrid for the Resilience of Safety-Critical Systems
We are pleased to announce the publication of our latest technical whitepaper, G3-Hybrid for the Resilience of Safety-Critical Systems. This new document highlights how G3-Hybrid technology ensures secure, robust, and low-latency communication in infrastructure where...