{"id":1656,"date":"2025-10-10T19:11:21","date_gmt":"2025-10-10T19:11:21","guid":{"rendered":"https:\/\/www.guardexy.eu\/guardexy\/"},"modified":"2026-03-13T20:55:37","modified_gmt":"2026-03-13T20:55:37","slug":"guardexy","status":"publish","type":"page","link":"https:\/\/www.guardexy.eu\/en\/","title":{"rendered":"Guardexy"},"content":{"rendered":"\t\t
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A shield for your
PV system.<\/span><\/h1>\t\t\t\t<\/div>\n\t\t\t\t
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Made in the Czech Republic.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Protect your power plant’s data. For owners, businesses, and municipalities. Starting December 2025. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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Our story.<\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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In just a few years, the photovoltaic market has transformed from a niche segment into one of the fastest-growing pillars of European energy. Today, every power plant operates as a smart, data-connected device \u2013 featuring online monitoring, remote access, and cloud management. Digitalization has brought efficiency, but also a new type of vulnerability that has long remained overlooked: the cybersecurity of the inverters themselves. <\/p>

This gap in the ecosystem was the impetus for the creation of the Guardexy project.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Guardexy is a specialized security device that monitors and manages photovoltaic inverter communication in both directions \u2013 inbound and outbound. It can audit, log, and filter data transfers in real time. It identifies non-standard behavior and blocks suspicious commands in real time. It is a response to real market demand for a technology-neutral, practical, and rapidly deployable tool that protects the data integrity of photovoltaic systems in residential, commercial, and municipal installations. <\/p>

The development of Guardexy is backed by a Czech team from the companies SOLSOL and MaNoSens. Key components are manufactured in the European Union, where all data is also stored. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t

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Preventive defense against attacks<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tIt doesn’t wait for something to happen. Guardexy acts as a digital fuse for your PV system \u2013 recognizing suspicious data flows before they become a threat. It protects households, businesses, and municipalities through smart prevention. \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t
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A shield that protects both ways<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tSmart data control, both inbound and outbound. Guardexy monitors and filters data communication bidirectionally \u2013 capturing risky commands and intrusion attempts. It protects the inverter, data, and users from external attacks. \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t
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Plug & Play without downtime\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tPlug in, turn on, secure. Installation takes just a few minutes and requires no system modifications. Unlike conventional firewalls, the PV system remains online \u2013 with monitoring and remote service intact. \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t
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European security in PV cyber protection<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tGuardexy is the first smart security filter developed in Europe, offering an answer to new threats that the energy sector has ignored until now. Key components originate from the EU, and all data remains securely stored on European servers. \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\u201cWe realized how vulnerable the distribution grid can be during a cyberattack conducted through inverters. Guardexy is our answer \u2013 a Czech device that protects systems without the need for compromise.\u201d \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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Martin Nov\u00e1k, Product Development Director at Guardexy (SOLSOL)<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\u201cEurope must learn to protect its energy sector before it is too late. Guardexy is our answer \u2013 the first product for the preventive protection of photovoltaic infrastructure.\u201d \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tMat\u00fa\u0161 Nosko, Svetoz\u00e1r Nosko, Guardexy development team (MaNoSens)\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t
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\u201cI want to be sure that my inverter is protected against unwanted external commands. And hundreds of thousands of Czechs who own PV systems should have the same need.\u201d <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Ji\u0159\u00ed Hlavenka, entrepreneur and investor<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t

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Products<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Guardexy is available in three variants: for owners of PV systems on family houses and apartment buildings, for businesses, and for municipalities. <\/p>

SOLSOL partners can purchase the Guardexy product via the client B2B portal<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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Solutions for businesses and commercial installations<\/h3>\t\t\t\t<\/div>\n\t\t
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Solutions for municipalities and public administration<\/h3>\t\t\t\t<\/div>\n\t\t
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Solutions for residential PV system owners<\/h3>\t\t\t\t<\/div>\n\t\t
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250k+<\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tpotentially at-risk photovoltaic power plants in the Czech Republic\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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15+<\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tstrategic partners in the field of energy and IT security\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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100%<\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tsuccess rate in detecting suspicious data flows\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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24\/7<\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tpermanent and bidirectional protection of sensitive data from inverters\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Frequently Asked Questions<\/h2>\t\t\t\t<\/div>\n\t\t
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Why should I address PV protection right now? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Early prevention is always cheaper than dealing with the consequences.<\/span><\/p>

Because cyberattacks on internet-connected devices are on the rise \u2013 and PV systems are no longer an exception. Most modern inverters communicate with manufacturers’ clouds (often outside the EU) and send data about your power plant. Guardexy acts as an active protective filter that prevents unauthorized transfers and protects your investment and data. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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What are the risks if I don't protect my power plant? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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An unprotected PV system = an open gateway to the network.<\/span><\/p>

Your power plant could be remotely shut down, slowed down, or exploited for attacks. Through a vulnerable inverter, an attacker can also gain access to your home network, where you have computers or smart home devices. Guardexy can detect, block, and report these attempts before they occur. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Will Guardexy limit the warranty or device monitoring in any way? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tNo. All operational data and manufacturer monitoring are preserved, without affecting the manufacturer’s warranty. \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t
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How do I know if my power plant is vulnerable? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Are you online? Then you are a target. <\/span><\/p>

Whether you only own a mobile phone or other smart home devices: if your inverter has remote access, a cloud connection, or a mobile app, then it is online \u2013 and therefore potentially vulnerable. Guardexy offers the same solution that your computer likely uses: a high-quality firewall, a shield against unwanted data traffic and commands. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Does Guardexy work with my type of inverter? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Compatibility is broad, and we are constantly expanding it.<\/span><\/p>

Guardexy supports all common brands (Solax, Goodwe, Growatt, Huawei, Sungrow, etc.) and works independently of the manufacturer. It monitors data traffic at the network level \u2013 so it does not interfere with hardware or void the warranty. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Can Guardexy, for example, slow down data transfer? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Security without compromising speed.<\/span><\/p>

The device operates passively in real time \u2013 checking data flows without delay, without interfering with operations, and without affecting performance. All transfers that are safe and permitted pass through completely freely. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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How is Guardexy installed and who will do it? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Installation is plug-and-play: it simply connects between the inverter and the router (or LAN switch). Any electrician or installation company \u2013 or our partners \u2013 can handle it. The entire process takes a few minutes, without any power plant downtime. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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How much does Guardexy cost and what do I get for it? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Low investment, long-term security.
You get continuous 24\/7 protection, data transfer monitoring, automatic updates, and threat alerts. The price depends on the type of power plant and its use \u2013 ranging in the thousands of Czech korunas per device. More in the \u201cProducts<\/a>\u201d section. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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What happens if Guardexy stops working? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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A security layer that never slows down production.<\/span><\/p>

Guardexy is designed not to affect PV operation even in the event of a failure \u2013 production continues. At the same time, the system automatically reports if it is out of service, so you will know about the problem in time. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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How does Guardexy differ from a standard firewall or router? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t\t<\/path><\/path><\/g><\/rect><\/clipPath><\/defs><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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A firewall for the solar world \u2013 tailored specifically for PV systems.<\/span><\/p>

A router protects the home network; Guardexy protects the inverter itself. It analyzes traffic specifically for photovoltaics, recognizing the difference between normal communication and suspicious data transfer. <\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t