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More power for your PV system - with KOSTAL

Replace your inverter. Increase your yield.

Repowering with KOSTAL - Replace inverter & increase yield

More power, more future - why it pays to replace inverters

Get the full potential out of your PV system now - have your inverter replaced by a certified KOSTAL installer and start your new energy future.

Energy Management HEMS

Smart PV systems with intelligent energy management.

Energy Management HEMS

Solar system expansion

Expand your existing photovoltaic system with KOSTAL technology.

Solar system expansion

Warranty reset

Renew your inverter with a full warranty.

Warranty reset

Integrate battery storage

Increase self-consumption with modern battery storage systems.

Integrate battery storage

Future-proof with paragraph 14a EnWG

Make your PV system fit for the future with Section 14a of the German Energy Industry Act (EnWG).

Future-proof with paragraph 14a EnWG

Commercial PV system

Commercial Repowering - More efficiency for your commercial PV system.

Commercial PV system

Time after the EEG

Make your PV system fit for the time after the EEG.

Time after the EEG

Monophase PV system

Modernise your monophase solar system with KOSTAL.

Monophase PV system

Repowering for your PV system - more power, more future

Repowering brings your photovoltaic system up to date: higher efficiency, longer service life and better cost-effectiveness. As a manufacturer, we at KOSTAL rely on future-proof technologies that will make your system fit for the years to come. We will be happy to provide you with further information and recommend a KOSTAL partner in your area on request.

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Repowering of a PV system

Many operators of a photovoltaic system do not realise that their inverter has been in continuous use for over ten years - and is therefore often no longer state of the art. Yet the inverter is the centrepiece of your PV system: it plays a key role in determining how much solar power you can actually feed into the household grid and consume yourself.

Older devices not only operate at a lower level of efficiency, they also often do not offer modern interfaces for battery storage, wallboxes or heat pumps. Added to this are possible failures, a lack of guarantees and limited monitoring functions. The good news is that you don't have to replace the entire system for more power and future-proofing - just the centrepiece.

A technical and economic gain

A modern KOSTAL inverter offers you several advantages:

  • Efficiencies of over 98 % for more yield
  • More MPP trackers for flexible configuration, even with east-west orientation
  • Interfaces for storage, wallbox, heat pump and smart home systems
  • Convenient app and portal connection for monitoring and control

Replacement is also economically worthwhile: just a few per cent more annual yield often amortises the investment within a few years. With a suitable battery storage system, you can increase the proportion of self-consumption and thus permanently reduce electricity costs. You also benefit from a new guarantee and a low risk of failure.

Starting point for your energy management

A new inverter is the key to a holistic energy management system. Whether battery storage, e-car charging station or heat pump - you can intelligently network, control and optimise your energy in future. This will increase your independence from the energy supplier, protect your investment and increase the value of your property in the long term.

Utilising subsidies and tax benefits

In many regions, there are attractive subsidy programmes for retrofitting and storage integration. In addition, photovoltaics and battery storage systems are generally subject to 0% VAT - an advantage that makes the purchase even easier.

Simple, fast, uncomplicated

Switching is often easier than you think: In most cases, no new cable is required, installation only takes a few hours and there is no need to re-register the PV system, as long as the output remains the same. Planning, dismantling, installation and commissioning are carried out by a certified KOSTAL installer.

More transparency with digital monitoring

While older systems hardly provide any data, the KOSTAL Solar App allows you to keep an overview at all times: Yield and consumption data in real time, push notifications in the event of faults and full control over your energy flows - simple, easy to understand and mobile.

Do a repowering check now

Find out how much more yield a new inverter will bring for your system. Your KOSTAL installer will advise you personally, check your existing system and prepare a non-binding offer. Take the opportunity to make your PV system fit for the future - with technology from KOSTAL.

KOSTAL Solar Repower Check