News & press
News from REFU: projects, products, trade fairs and our view on grid requirements and cybersecurity in photovoltaics.
Upcoming events
- 5.11.–10.12.2026Tilo brings colour into play. And chocolate to customers.Visiting our customers
- 12.Nov 20266th Photovoltaics Evening Baden-Württemberg: Tilo and Simon will be thereJaz in the City, Wolframstraße 41, 70191 Stuttgart
- 24.–25.Nov 2026Forum Solar PLUS: cybersecurity in networked energy systemsbcc Berlin Congress Center, Berlin
- 2.–3.Dec 2026Sustainable Solutions in Düsseldorf: visit us in hall 14Düsseldorf · Halle 14, Stand F9
Latest posts

Tilo brings colour into play. And chocolate to customers.
REFU on Tour: our Sales Manager Tilo Zwesper is touring all over Germany, visiting customers on site. Anyone who arranges a visit will receive a Lindt chocolate basket.
Trade fairs & events
Forum Solar PLUS: cybersecurity in networked energy systems
On 24 and 25 November we will be at Forum Solar PLUS at bcc Berlin. On Wednesday, Tilo Zwesper will talk about how networked PV plants and storage systems can be planned and operated securely.
Trade fairs & events
42nd PV Symposium at Kloster Banz: we will be there
From 9 to 11 March 2027 we will be at the 42nd PV Symposium at Kloster Banz in Bad Staffelstein with a small stand.
Company
Podcast “Watt ’ne Law”: who controls our solar plants?
Tilo Zwesper and Matthias Reisenauer were guests on the podcast “Watt ’ne Law”. The topic: who may control a PV plant remotely, and what does that mean for technology, procurement and responsibility?
Trade fairs & events
Sustainable Solutions in Düsseldorf: visit us in hall 14
On 2 and 3 December we will be at Sustainable Solutions in Düsseldorf, hall 14, stand F9, with our REFU 261 and REFU 418 battery storage systems and the REFUlink. We have free tickets for meetings.
Products & projects
Repowering: C&I inverters delivered free of charge until 18 December
Replace old inverters and save: until 18 December 2026 we deliver our C&I inverters free of charge in Germany and Austria, with no minimum quantity.
Trade fairs & events
6th Photovoltaics Evening Baden-Württemberg: Tilo and Simon will be there
On 12 November Tilo Zwesper and Simon Hackenberg will attend the 6th Photovoltaics Evening Baden-Württemberg in Stuttgart, the networking event of the regional PV networks.
Products & projects
What if your plant only transmitted when you wanted it to?
Many components in PV plants have a Bluetooth interface that is permanently active. We are currently rolling out a solution in which a Wi-Fi connection is switched on only when it is needed.
Company
What we are taking away from Brussels: inverters are becoming a security issue
REFU took part in the industry exchange in Brussels on cybersecurity, high-risk inverters and EU funding. What this means for operators, EPCs and investors.
For journalists
Are you reporting on photovoltaics, grid integration or cybersecurity in the energy supply? For press releases, images and interviews, please contact our marketing team.
Press contact
marketing@refu.com