Your solar system, truly understood.
Simulate, design, monitor and maintain your system — all in one place. Before you install it, and after.
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12 Roma Street, Monza · south-facing roof
Estimated production in a year
8.400kWh
- System
- 6 kW
- Yield in your area
- 1.400 kWh/kWp
- CO₂ avoided
- 1,7 t
Mapping Italy's solar systems, one at a time
In Italy there is nowhere to see what a solar system actually cost — on a house, on a warehouse or on the ground. There are the price lists of the people selling and the quotes that reach you, and nothing in between: whoever buys decides in the dark, once, on a figure that starts in the tens of thousands.
A quote on its own cannot be judged: what makes it comparable is the price per kWp installed, and almost nobody works it out. If you already own a system, put yours in: we tell you straight away, and it stays in the archive for whoever still has to decide.
- Systems simulated
- 4,030
- Systems configurated
- 937
- kWp total
- 80,217
Manufacturers on Sunnix
Who's behind Sunnix
It's not a black box. It's the tool we use ourselves, first.
Sunnix was born inside Solink, which has worked in solar for years — and we use it ourselves every day, to simulate and design the systems we work on. We built it to answer the question we get asked most often — "is my system actually performing well?". That's why we don't just give you a score: we show you the real production, the production expected from your local weather, and the gap between them, day by day.
Sunnix has been around for a while: thousands of people already use it to simulate and design their systems. Digital-twin monitoring is our most recent feature — we just launched it and we're rolling it out carefully, one system at a time, before offering it at scale. If you have questions about how it really works before activating it, write to us — we answer personally, not a call center.
See how it works in detailWhy you can trust the numbers
Every number we give you has a source and a date
Tax deductions, incentives, energy prices, avoided CO₂: these are the figures you take to your accountant or your installer. For each one we record where it comes from and when somebody last checked it against the official source.
How we calculate everything50% deduction on your main home
36% on other properties, on up to €96,000 spread over ten yearly instalments.
Agenzia delle Entrate · checked on 13 agosto 2026 · in force until 31 dicembre 2026
180% hyper-depreciation for businesses
The system cost is deducted with an uplift, provided output stays within 105% of consumption.
MIMIT · checked on 13 agosto 2026 · in force until 30 settembre 2028
CO₂ factor of the Italian grid
How much carbon dioxide you actually avoid for every kWh you don't buy.
ISPRA · checked on 13 agosto 2026
And when a rule is about to expire we notice first: an automated check fails ninety days before the deadline. That is not a figure of speech — it is why the Superbonus, abolished by the 2026 Budget Law, cannot sit in here winning comparisons.
From the first question to the day your system works for you
Sunnix is not a simulator, nor a monitoring tool. It is the whole journey — and you can join it wherever you are.
Before you install
To decide for real
Seven calculators for the sums that matter
Energy needs, incentives, EV charging, petrol versus electric: the numbers you want before you sign.
See the toolsThe paperwork, with a price on it
Grid connection, GSE, ENEA, CILA, landscape permits. A clear price list, final prices, and someone to do them.
See the paperwork
After installation
And afterwards, the digital twin
Every day we compare what your system produced with what it should have, and tell you why it did not.
See the monitoringA drone, when you need a real look
Thermographic inspection, 3D survey and cleaning: when the data says something is wrong and someone has to go up there.
See the services
At any point along the way
A doubt about the design, an odd case, a quote to read through: we answer, not a form.
Is your system producing what it should?
Sunnix compares what your system actually produces with what it should produce based on the day's weather. So you always know whether it's working well — and if something's off, it tells you right away.
We don't alert you when it rains. Only when something's actually wrong.
If your system produces less on a cloudy day, that's normal. But if it produces less on a sunny day, something's off. Sunnix tells weather apart from real faults, so you always know whether your system is working well.
- Knows if it was cloudy or sunny in your area
- Identifies dirty panels, dead strings, or faults
- Calculates losses in euros, day by day
Performance dropped to 52% of the theoretical potential in clear sky conditions.
Probable Cause: Inverter / String Failure
- Financial Loss Today:
- − € 2.40
- 30-day projection
- − € 72.00
Have questions or want to see a demo?
Contact us for a personalized monitoring demo or for any questions about how it works.
If solar is your job
The same calculation engines, from the side of whoever installs, designs or manufactures.
The component catalogue
Panels and inverters from the main manufacturers, with datasheets and reference prices.
Browse the cataloguePut Sunnix on your site
Generate a link or a widget with your own panels: your visitors simulate on their roof, with your products.
Generate the linkAdd your products
A manufacturer or a distributor? Bring your catalogue into the configurator designers actually use.
How it worksDomande frequenti
Non riesci a trovare la risposta che cerchi? Contatta il nostro supporto clienti. Scrivici qui.
Solar monitoring, simulation and configuration in one platform
Sunnix is the Italian platform for solar system monitoring via digital twin technology. Unlike traditional monitoring systems, Sunnix requires no sensors, gateways or SIM cards. The system uses PVGIS climate data from the European Commission and real satellite weather to simulate your system's expected production every day, comparing it with the actual production recorded by your inverter.
The free Sunnix solar simulator calculates estimated energy production for any GPS position in Italy and Europe, considering solar irradiance, temperatures, horizon profile and local shading. The configurator lets you design the system directly on your roof map, selecting panels and inverters from updated catalogs of leading manufacturers (LONGi, JA Solar, Huawei, Fronius, SolarEdge, Enphase, Zucchetti). The technical report includes the bill of materials, monthly production curve and investment payback calculation.
Digital twin monitoring calibrates itself against your system's real production, telling clear days apart from mixed and overcast ones. When it detects an abnormal drop it identifies the probable cause — dirty panels, hardware fault, grid curtailment or exceptional weather — and works out the daily financial loss. Compatible with any inverter on the market: just upload your production data as a CSV.
Want the technical detail? There is the documentationWhere do you want to start?
Whether you are still deciding, choosing panels, or have had the system on your roof for ten years: you join wherever you are, and for free.
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