The Open Meter from Enel S.p.A. - digital classic of Italy’s power grid

Reviewed: ad hoc news Classics & Longseller desk. Edited and checked on 2026-06-28, 02:55. Details in the imprint.

The Open Meter from Enel S.p.A. sits on the wall where an old mechanical counter once hummed, its clean white plastic and quiet LED replacing the faint buzz and clack of spinning discs. You still hear the click of the breaker, but the readings flow invisibly to the utility.

How Open Meter works

Enel’s Open Meter is a second-generation smart electricity meter designed to be read remotely rather than by a technician knocking on the door. It measures consumption in short intervals and sends data back over the power line or a dedicated telecom channel.

The unit replaces Italy’s first wave of smart meters and supports features such as remote activation, disconnection, and tariff changes without a worker needing to enter the home. For most households the only visible sign of a change is the digital display and a small status LED.

Daily life with a smart meter

For a family in Rome, the Open Meter means the bill reflects more accurate, near real-time readings instead of the estimated curves that came with old meters. You can watch the kilowatt-hour count jump when the oven switches on, and fall back when lights are off.

When Enel’s then-CEO Francesco Starace talked about the rollout, he framed it as a step toward a more flexible grid where demand and supply talk to each other instead of moving blindly. That ambition shows up in the meter’s support for dynamic tariffs and time-of-use pricing.

Why regulators like it

Italian regulators pushed for advanced metering to improve billing accuracy and give the grid operator better visibility of load patterns. A meter like Open Meter allows more precise tracking of consumption peaks and valleys, which supports planning and grid stability.

By making it possible to switch customers to time-of-use tariffs, Open Meter nudges heavy consumption toward off-peak hours. That can reduce strain on transformers and lines during hot summer evenings when air-conditioners compete with cooking and lighting.

Step toward flexible demand

Open Meter is also a foundation for demand-response programs where appliances and industrial loads can be shifted in response to price signals. The meter’s granular data feed lets Enel coordinate with customers instead of guessing based on past averages.

In practice this might mean an industrial customer agreeing to dial back some equipment when the system is tight, with the meter providing the measured proof of how much load was reduced and when.

Design, installation, and feel

The meter itself is about the size of a small paperback book, with a tactile front button to cycle through register information. Installers typically mount it in the existing meter box, swapping cables and sealing it with a numbered tag.

For many residents the installation visit is a brief interruption: a worker lowers the main breaker, swaps the hardware, and the lights flicker off for a few minutes before coming back with a new digital face on the wall.

Limitations and annoyances

Not every customer is happy with the change. Some complain that the small screen and abbreviated labels are harder to read than the old analog dial, especially for older people who were used to the rotating disc and simple number row.

Others worry about the privacy of detailed consumption data, even though utility regulations typically set strict rules for how long data can be stored and for what purposes it can be used.

Open Meter as a long-term asset

From Enel’s perspective, Open Meter is a long-lived infrastructure asset with a life measured in decades, not years. It sits between customer and grid as a quiet translator, turning household demand into digital signals that software can understand.

Rolling out millions of units costs billions of euros over time, but it also reduces manual meter-reading expenses and improves billing quality, which can cut disputes and bad debt.

Stock context and venue

Smart metering is one pillar of Enel’s broader strategy that covers networks, generation, and retail supply, and it has been part of the company’s narrative to investors for years. The Enel share price is primarily quoted on the Borsa Italiana in Milan in euros under ISIN IT0003128367.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.

en | IT0003128367 | ENEL | boerse | 69643045 | bgmi