Smart metering is not a single global rollout — it is dozens of national programmes, each driven by its own policy environment, grid challenges, and technology choices. This page maps the landscape.
The Scale of the Transition
Over 1 billion smart meters are expected to be deployed globally by 2027. The reasons differ by country, but the drivers are consistent: reduce energy theft, improve billing accuracy, enable time-of-use pricing, and give grid operators real-time visibility.
China — The World's Largest Rollout
China State Grid and Southern Grid have deployed over 550 million smart meters — the largest single national rollout in history. Key facts:
- Standard: DL/T 645 (domestic protocol, not DLMS)
- Communication: PLC (G3 variant), RF
- Reading frequency: Daily
- Data collected: 15-min load profile, tamper events, power quality
China essentially created its own metering ecosystem with domestic standards and domestic manufacturers (DTSD, Holley, Clou).
Europe — The Policy-Driven Mandate
The EU Electricity Directive mandated that member states deploy smart meters where the cost-benefit analysis is positive. This resulted in uneven but significant rollouts:
| Country | Status | Technology |
|---|---|---|
| Italy | Complete (2nd gen) | PLC (G3), DLMS/COSEM |
| UK | Near complete | SMETS2, GBCS, DLMS |
| Spain | Complete | PRIME PLC, DLMS |
| Germany | Phased rollout | OSGP, mMSB regulation |
| France | Complete (Linky) | G3-PLC |
| Netherlands | Complete | DSMR, P1 port standard |
The European standard is DLMS/COSEM (IEC 62056), making meters broadly interoperable across vendors.
USA — Utility-Led Fragmentation
Unlike Europe, the USA has no federal smart meter mandate. Each utility deploys independently, resulting in fragmented standards:
- AMI vendors: Itron, Landis+Gyr, Sensus/Xylem, Honeywell
- Communication: RF mesh (Wi-SUN, Zigbee), PLC, cellular
- Protocol: ANSI C12.18/C12.19 (not DLMS) dominates
- Scale: ~115 million meters deployed
ANSI C12.19 is the US table-based data model (vs COSEM object model), and ANSI C12.22 is the network transport (vs DLMS framing). The two ecosystems are largely incompatible.
India — The RDSS Programme
India's Revamped Distribution Sector Scheme (RDSS), launched 2021, targets deployment of 250 million smart prepaid meters by 2025–2026 — the largest ongoing rollout in the world by target size.
Key specifications:
- Standard: IS 16444 (based on IEC 62056 / DLMS/COSEM)
- Communication: G3-PLC (primary), RF, cellular fallback
- Prepaid mode: STS token-based or DLMS SET-based credit
- Data frequency: 15-minute load profile mandatory
- Remote operations: Connect/disconnect, firmware update
The programme aims to eliminate AT&C (aggregate technical and commercial) losses, which currently average 17–20% in Indian distribution — representing billions of dollars in lost revenue annually.
Middle East
Gulf states are deploying smart meters primarily for demand management — peak cooling loads in summer push grids to the edge.
- Saudi Arabia (SEC): 10M+ meter rollout, DLMS/COSEM, G3-PLC
- UAE (DEWA, ADDC): Advanced deployments with AMI + solar net metering
- Oman, Kuwait, Bahrain: Active procurement programmes
Southeast Asia and Africa — Emerging Markets
Many developing nations are jumping directly to smart metering, skipping the intermediate AMR phase. Prepaid metering is particularly dominant where revenue collection is challenging.
- Africa: STS-based prepaid dominates; AMI rollouts beginning in South Africa, Kenya, Nigeria
- Indonesia, Thailand, Vietnam: Phased AMI programmes underway
- Bangladesh: Large smart meter tender recently concluded
Standards Landscape
Key Takeaway
Smart metering is a global movement but not a uniform one. DLMS/COSEM is the dominant international standard, but ANSI (USA) and DL/T 645 (China) represent large independent ecosystems. If you are building products for the global market, DLMS/COSEM compliance is the most valuable starting point — it covers Europe, India, the Middle East, and increasingly the rest of the world.