About us

Solar with a number in front, and a check afterwards.

Sunnix is the software born inside SoLink, which has designed and manufactured photovoltaic technology in Italy since 2013. It does one thing: it shows the real numbers of a system, before you buy it and after you switch it on.

Write to us039 2183918

In three numbers

  • 26cities with hand-calibrated PVGIS climatology: every value on the city pages is within 0.3% of PVGIS, month by month
  • 5,000+systems already estimated or configured by people who got here before you
  • 23 MWof simulations and configurations in the first six months of Sunnix 1.0, February 2026

How we work

Four rules, written before the features.

They are why Sunnix is built this way and not otherwise.

  • Every number has a source and a date

    Yield, incentives, energy price, CO₂ avoided: where each figure comes from is written on a page, with the date of the last check. If a rule is about to expire we notice first, with an automatic check.

  • Open to everyone, free, no sign-up

    Homeowners, businesses, designers and installers use the same tool, with the same calculation engines. You pay only when Sunnix works with a company's name in front, or when it verifies a system already running.

  • We do not keep your customers' contacts

    Requests born from a quote go to whoever should receive them and do not stay with us. The PDF is generated in your browser and never touches our servers. It is not a missing feature: it is a rule.

  • The numbers aren’t for sale

    Nobody pays to change the maths of an estimate, and no lead is resold. It is the only way an estimate and a price comparison stay credible.

How we calculate everything

Milestones

From the first commit to today.

In the order it happened.

  • 2003SoLink's founder starts working on solar. Twenty years before Sunnix.
  • 2013SoLink is founded. It designs and manufactures photovoltaic technology in Italy.
  • November 2023The first lines of Sunnix. A configurator for our own work: roof faces drawn on the map, real panels and inverters.
  • August 2024The configurator goes online. Alpha 0.0.1, the first tool open to anyone.
  • February 2025From the phone. The mobile configurator, energy-needs and savings estimates.
  • May 2025The manufacturers' catalogue. Custom panels and configurations even where the satellite does not reach.
  • August 2025Quick simulations. From the address to the number in a minute, without drawing anything.
  • September 2025The public launch. As an experiment on the Italian market.
  • February 2026Sunnix 1.0. In under six months, over 23 MW of simulations and configurations.
  • April 2026The calculators and the account. Seven free tools, and estimates that stay.
  • May 2026Paperwork, with a written price list. Grid connection, GSE, ENEA, CILA, landscape permits. And the virtual plant, producing every day before it exists.
  • June 2026Field services. 3D survey, thermography and drone cleaning.
  • August 2026Monitoring and the observatory. Every night produced against promised, with the day's weather. And real prices, collected from people who already paid.
  • September 2026Sunnix Pro and the twenty-six cities. Links signed by companies, with their logo and price list. City pages calibrated on PVGIS.
  • NextClosing the circle. Every estimate with its check: promised this much, produced this much, on every system.

Write to us

If you write, the person who writes the software answers

There is no call centre. A doubt about a project, a strange case, a number that does not add up: we answer.

039 2183918info@sunnix.it
8:0013:0018:00