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THE BIGGEST RISK IS THE ONE YOU CANNOT SEE YET

A solar system does not always tell you when it has stopped or is already producing less. SM Sentinel watches it.

A stopped string, faulty connector or abnormal inverter can reduce production while the rest of the system keeps running. SM Sentinel regularly checks the available operational data, preserves the history and sends a notification about deviations that require attention.¹

Two minutes, using your own system data.
HOW DETECTION LOOKS Deviation detected
100%75%50%25%
-100%
SM SENTINEL DETECTIONComplete shutdown
DEVIATION STARTED30 days ago
ESTIMATED LOSS1,973 kWh
ESTIMATED IMPACTHUF 295,890
LOSS DOES NOT START WITH THE BILL

The cost begins when production starts to fall.

The system may appear operational while the deviation grows day after day in the background.

  1. 01Complete or partial shutdown

    Production, a string, an inverter or the data connection may stop.

  2. 02Hidden production loss

    The system continues running but no longer delivers its potential output.

  3. 03Lost energy

    Energy not produced today cannot be recovered later.

  4. 04Financial impact

    Missing energy must be purchased from the grid.

WHAT DOES SM SENTINEL MONITOR?

From complete shutdown to gradual performance decline.

Even a complete shutdown is not always obvious. A partial shutdown is harder to see: the system may keep producing and appear to be operating normally.

01

Complete shutdown

If system operation, production or the data connection stops, SM Sentinel flags the condition that needs attention.

02

Available fault signals

It follows fault codes and operating states available from the inverter and sends a clear notification about confirmed issues.

03

Partial production loss

Where sufficiently detailed data is available, SM Sentinel also monitors defined partial operational deviations.¹

04

Persistent performance change

Preserved operational history provides a baseline for investigating slow and persistent changes.

¹ Available data varies by manufacturer and access level. During connection, we show exactly what SM Sentinel can see from your system.

LOSS CALCULATOR

What can late detection cost?

Enter your own system data to estimate the financial impact of unnoticed production loss.

Lost production cannot be generated later.
Start SM Sentinel monitoring
ESTIMATED FINANCIAL LOSS BY SEASON
SummerHighest exposure
493,043 Ft

Estimated lost production: 3,287 kWh

Spring–autumn
295,082 Ft

Estimated lost production: 1,967 kWh

Winter
96,000 Ft

Estimated lost production: 640 kWh

This is an indicative seasonal estimate. It allocates 42% of annual production to summer, 8% to winter and 50% to spring–autumn. Actual production depends on weather, orientation, shading, the consumption profile and individual settlement terms.

SM SENTINEL IS THE MEMORY OF YOUR SYSTEM

The production curve is only the end of the story.

SM Sentinel stores not only how much the system produced, but also the available AC, DC, string, temperature, status, fault and communication data at the frequency defined by the selected plan.¹

“Manufacturer monitoring shows how much the system produced. SM Sentinel remembers how it operated.”

The relationship between these values can provide useful clues when investigating a deviation and its possible cause.¹

WHAT WE PRESERVESystem memory
Operational history
01Production history
02AC voltage, current and power
03DC and string data
04Inverter temperature
05Fault codes and states
06Communication events
MONITORING IS NOT THE SAME AS SUPERVISION

The manufacturer portal shows available data. SM Sentinel checks it regularly.

It keeps watch at the frequency defined by your plan, even when you do not open the manufacturer application.

TYPICAL MANUFACTURER MONITORINGSM SENTINEL

Even a complete shutdown may only be noticed during a later check

Monitors when operation, production or the data connection stops

A manufacturer fault signal still has to be noticed and interpreted

Follows available fault signals and sends clear notifications about confirmed issues

A partial shutdown can remain hidden while the system still produces

Uses available telemetry to monitor defined partial operational deviations

Slow changes can blend into normal seasonal variation

Preserved history provides a baseline for investigating persistent changes

Solar-system owners should not be expected to interpret charts, fault codes and inverter data every day.

SUPPORTED INVERTERS AND MANUFACTURER PORTALS
REAL EXPERIENCE, NOT THEORY

Built from faults that were invisible from the outside.

SM Sentinel grew from years of installing, operating and troubleshooting solar systems in real conditions.

REAL, ANONYMIZED CASE

A burnt connector and one silent string

The rest of the system kept producing, so the missing output was not visible from the outside.

Read the story
EXPERIENCE BEHIND THE SERVICE

SM Sentinel was not invented at a desk.

It is based on long-term technical experience with solar systems, inverters and real-world faults.

Learn about our background
THE VALUE OF PEACE OF MIND

SM Sentinel keeps watch so you do not have to.

You receive feedback even while everything is operating normally: event history with Őrszem, a monthly summary with Plusz and a detailed monthly report with Prémium.

You do not have to interpret manufacturer charts, fault codes and technical data on your own.

Know when the system is operating normally — and when it is time to act.
DIFFERENT CONTEXT, SAME LOST ENERGY

Who bears the cost of late detection?

01HOMEOWNERS

A running inverter does not necessarily mean the system is producing as it should.

SM Sentinel helps make deviations visible earlier without requiring constant manual portal checks.

Start monitoring →
02BUSINESSES

When your system produces less, your company buys more electricity from the grid.

SM Sentinel helps make deviations visible earlier without requiring constant manual portal checks.

Start registration →
03MUNICIPALITIES

An institutional energy investment can lose output while appearing to operate normally.

SM Sentinel helps make deviations visible earlier without requiring constant manual portal checks.

Request consultation →
04OPERATORS AND PARTNERS

See which site needs attention without checking separate manufacturer portals.

SM Sentinel helps make deviations visible earlier without requiring constant manual portal checks.

Partner consultation →
HOW IT WORKS

Four steps. You only need to read the notification.

SM Sentinel checks incoming operational data at the frequency defined by your plan. When a monitored value departs from a configured condition, it sends a clear notification about the detected state.

  1. 1
    We monitor

    Available operational data is received and preserved.

  2. 2
    We notice

    Operation outside the configured conditions is highlighted.

  3. 3
    We notify

    You receive a clear notification about the detected state.

  4. 4
    You decide

    Expert diagnosis or repair can be requested as a separate service.

PLANS

Choose how often SM Sentinel should check your system.

Compare current prices, check frequencies and report content in one place. Displayed HUF prices and contractual terms apply to Hungary.

FEATURED RESIDENTIAL PLAN

SM Sentinel Prémium

24,990 HUF / year, gross

Checks every 1 hour with clear issue notification.

Start with this plan
BUSINESS AND MUNICIPAL

SM Sentinel Üzleti Kritikus

Capacity-based pricing

Checks every 30 minutes with the report included in the plan.

View prices
ALL PLANS

Plans, prices and optional service levels

All current Hungarian prices and conditions in one place, without hidden costs.

View plans
WHAT YOU CAN EXPECT

Find out before payment whether SM Sentinel works with your system.

01
Checked before payment

We first verify that the system can be connected. Payment is due only after a successful connection.

02
Operational history is preserved

Preserved data provides a long-term comparison baseline for investigating the system.

03
You decide the next step

SM Sentinel monitors and notifies. Expert diagnosis and repair can be requested as separate services.

04
You do not have to interpret it

Instead of charts and fault codes, you receive a clear notification about the detected condition.

YOU SHOULD NOT HAVE TO NOTICE IT YOURSELF

Let SM Sentinel watch your system every day.

Choose an SM Sentinel plan, have compatibility checked and keep the operation of your solar system visible over time.

Compatibility is checked before payment. A payment obligation arises only after a successful connection.