A clear price per property
One eWatt Reader on the property's electricity meter is all it takes. With self-service, the findings, their likely causes and what they cost are in the app. If you want, your own expert goes through them with you.
Smart
€29/ month / property
+ €290 one-time device fee
+ €590 service opening fee, once per customer
Excl. VAT
Self-service: findings, their likely causes and what they cost, straight in the app.
Order nowSmart + Expert
€49/ month / property
+ €290 one-time device fee
+ €590 service opening fee, once per customer
Excl. VAT
Everything in Smart, plus your own expert who goes through the findings and the action plan with you.
Order nowEnterprise
Content, rollout and ongoing service are agreed together, based on your needs, the number of sites and the scope of the work.
For large property portfolios, and for companies, property owners and automation and data operators who need electricity data shaped to their own needs. We connect precise metering data to your systems and build forecasting models, analytics or automated workflows to fit.
Request a quoteDevice fee €239 per property from 11 properties, down to €209 from 51. The step's fee applies to every property in the order.
A 12-month contract. The device stays eWatt's, under warranty for as long as you use it.
Example: 3 properties on Smart: €870 in device fees and the €590 opening fee once, then €87 a month.
Included in every plan
- The eWatt Reader: plugs into the meter's HAN port and reads it every 10 seconds
- Live view: power, consumption and what it costs in euros right now
- History: trends and base load over days, weeks and months
- Findings: what happened, the likely cause, what to do, and what it costs in euros
- Peak power, base load and phase balance watched from day one, with an alert when something is off
- A weekly digest, a monthly PDF report and an annual summary
No HAN port on the meter yet? Ask sales
How it starts
Order
Online, on the order page: one eWatt Reader for each property.
We check the meters
eWatt checks that each electricity meter is suitable and asks the network company to open its HAN port.
Delivery
The Readers are posted to you, ready to plug in.
Plug it in
About five minutes per property. No electrician and no site visit.
Data and findings
A reading every 10 seconds from the first day. Findings the next day: the likely cause, what to do, and what it costs.
eWatt Reader
A small device next to the electricity meter. It reads the meter and sends the data straight to the eWatt service.
Plug in and done
An RJ11 cable into the meter's HAN port, in about five minutes. No electrician, no installation.
Powered by the meter
The reader takes its power from the meter. No separate power supply, no socket.
Its own SIM card
Connects over the mobile network. No Wi-Fi, no building network, no IT integration.
10-second accuracy
Short peaks and anomalies don't disappear into 15-minute averages.
Encrypted connection
Data travels encrypted and is stored to EU and Finnish requirements. The data is always the customer's.
Maintenance-free
Once it is plugged in there is nothing to do: no batteries to change, no settings to adjust.
Questions about pricing
What is the price for?
The price is per property you monitor. Each property gets one eWatt Reader on its electricity meter, and all prices are excluding VAT.
A large portfolio, an integration with your own systems or another custom need is Enterprise, priced by quote. Contact sales.
What does the order include?
An order includes an eWatt Reader for each property, the meter check, delivery, and getting the service running. It costs a one-time device fee of €290 per property, less from 11 properties, and a service opening fee of €590, charged only once per customer. Prices exclude VAT.
The one-time fees are invoiced at the end of the first month, together with the monthly fees.
How is the monthly fee billed?
At the end of the first month comes one invoice: the device fees, the opening fee and the monthly fees for 12 months. If you return the eWatt Readers within the first month, there is no invoice.
How long is the contract?
The contract runs for 12 months. It renews automatically 12 months at a time. To end it, tell eWatt in writing at least 30 days before the current 12 months are up.
The eWatt Reader remains eWatt's property and is returned within 30 days of the contract ending. It is under warranty for as long as you use it.
What if my meter's HAN port is closed?
eWatt checks that each electricity meter is suitable and asks the network company to open its HAN port, before the eWatt Readers are delivered. You do not need to do anything.
The pricing page lists the meter models the eWatt Reader works with. If yours is not there, ask sales before you order.
Which meters does eWatt work with?
eWatt works with several electricity meter models in use in Finland. Below are the supported meter models, their connections, and things to note about them.
eWatt is compatible with these meter models
| Manufacturer | Model | Connection | Type | Network companies / notes |
|---|---|---|---|---|
| Aidon | 6000-sarja (6141, 6161, 7534) Base model, low voltage | P1 | Low voltage | Elenia, Helen, Caruna, Vantaan Energia and others. The most widespread model in Finland. |
| Aidon | 6000W / 6800 CT model | P1 | Current transformer / Medium voltage | For larger properties (CT measurement). Used by several network companies. |
| Landis+Gyr | E360 (ZMF120) Base model, low voltage | P1 | Low voltage | HSY/Helen Sähköverkko, Turku Energia, PKS, Savon Voima. Common in southern Finland. |
| Landis+Gyr | E360 CT (ZMF320) CT model | P1 | Current transformer / Medium voltage | Larger properties, CT connection. Used by several regional network companies. |
| Kamstrup | OMNIPOWER Multifunction AMI | P1 / HAN | Low voltage / Current transformer | Järvi-Suomen Energia, EPV Alueverkko and some smaller network companies. |
| Iskraemeco | AM550 DLMS/COSEM based | P1 | Low voltage | Some smaller regional network companies. Slovenian manufacturer, more limited use. |
| Sagemcom | T210-D / SICONIA French manufacturer | P1 | Low voltage | Some network companies acquired as part of AMM expansions. Limited presence in Finland. |
Connection: P1 = RJ12 connector (DSMR protocol). HAN (Home Area Network) refers to the same user port under a different name. Types: Low voltage = under 1 kV | Current transformer = CT measurement for larger properties | Medium voltage = 1–36 kV