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.
Older inverters failing or no longer available? Then now is a good time for repowering: until 18 December 2026 we deliver our C&I inverters free of charge. The offer applies to deliveries to Germany and Austria, with no minimum quantity and no other conditions.
Which devices
The offer applies to our C&I inverters from 20 to 50 kW. We will be happy to work out with you which device suits your plant.
Find out more about replacing old inverters on our repowering page.
Products mentioned
REFUsol 20K-2T
Compact entry model for smaller commercial rooftops
- AC power
- 20 kW
- MPPTs
- 2
- max. efficiency
- 98.6 %
REFUsol 20K-3T
Flexible for commercial rooftops with several roof areas
- AC power
- 20 kW
- MPPTs
- 3
- max. efficiency
- 98.6 %
REFUsol 25K-3T
For replacement in existing commercial systems
- AC power
- 25 kW
- MPPTs
- 3
- max. efficiency
- 98.6 %
REFUsol 33K-3T
More power for mid-size commercial systems and repowering
- AC power
- 33 kW
- MPPTs
- 3
- max. efficiency
- 98.6 %
REFUsol 50K-4T
Powerful for large commercial and industrial rooftops
- AC power
- 50 kW
- MPPTs
- 4
- max. efficiency
- 98.8 %
Read more
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.
Products & projects
Optimised PV systems start with the right planning
Sound system planning determines the performance, economic efficiency and operational reliability of a PV plant.
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.
Discuss your project
Would you like to replace old inverters in your plant? We advise you personally, directly with our engineers.
Or directly+49 7121 145 1888info@refu.com
Request a project