STANDARDS OBJECTIVES MODERNIZED
Repowering your PV system.
The plant has come into the years, a component fails or you would like to use the existing roof space again? We advise you on the appropriate replacement.
View solar modules, inverters and the rest of the system together – with technical experience since 2007.
Personal advice · Bad Gandersheim
What should be renewed about your plant?
Repowering starts with the inventory: What works, what needs to be replaced and what is the aim of the conversion? This results in the extent of the modernization.
Replace solar modules
Replace defective modules or re-plan the module surface: The new occupancy must fit electrically and mechanically.
Characteristics and use
Technical test
Module dimensions, electrical parameters, existing strings, inverter inputs and assembly system are considered together. A higher module performance alone does not yet provide a suitable replacement solution.
Single replacement or new occupancy
With a single replacement module, the integration into the existing strand can be decisive. In addition, roof condition, mounting and available area must be checked for a new roof covering.
Modernize inverters
A replacement device is adapted to the existing modules, the mains connection and the desired functions.
Characteristics and use
More than the rated power
Input voltage, input current, number of MPP trackers and the structure of the module strands belong to the selection. Existing measurement and communication must also be taken into account.
Thinking memory right away
If a memory is to be added later, a suitable hybrid inverter and a separate AC storage system can be compared. Which variant fits depends on stock and approved combinations.
Overall system voting
Assembly, measurement, storage and energy management influence how the modernised system works together.
Characteristics and use
Taking stock
Existing documents, device types and operating data form the basis. Subsequently, components to be maintained and the newly needed parts are separated from each other.
Consider interfaces
Roof, electrical installation, mains connection and counter concept may require further testing. We agree with you and the participating specialist companies on the specific scope of delivery and services.
The way to the appropriate modernization.
Inventory and target
Name the year of commissioning, the size of the plant and the existing equipment. Describe faults, the desired replacement or a new usage concept.
Technically compare variants
We discuss suitable components and the interfaces to the inventory. Necessary on-site tests will be clarified with the participating specialist companies.
Clearing the framework before conversion
Compensation, reporting, grid connection and measurement concept must be checked on the basis of the concrete installation. This includes reason for exchange and additional performance.
Plan exchange and old stock together
Scope of delivery and timing are agreed. Acceptance or collection and processing with disposal partners can be discussed for replaced components.
What do you want to renew in your plant?
An overview of your existing system and the desired result are sufficient for the first vote. We clarify missing information together.
This information will assist in the preparation
- Start-up year and location
- Installed module performance, number of modules and existing types
- Manufacturer and model of inverter, available memory
- Occasion: defect, fault, new roof covering or other functions
- Photos, schematics, data sheets and yield data, if available
Good to know.
Answers to your plan.
When does repowering make sense?
For example, if components fail, a roof renovation is pending or existing technology limits the desired use. Whether a conversion makes sense is due to condition, technical effort and your own goal. The age of the plant is only part of this observation.
Does the entire plant have to be replaced?
No, no, no. A targeted exchange of individual components is also possible. Which parts can remain must be technically tested. Existing modules, inverters and new components must be coordinated.
Does the previous feed-in tariff remain unchanged?
We can't say that at all. Exchange ground, plant type, commissioning and the applicable legal framework are relevant. Additional benefit shall be considered separately. Clear the concrete assignment before conversion with network operators and, if necessary, expert advice.
What about network operators and market master data registers?
Technical changes may require notifications or a new vote. Let us check which information needs to be updated and whether feed-in power or measurement concept changes. The concrete implementation is part of the project planning.
Can a memory be added?
Yes, if an appropriate system solution is possible. Whether the existing inverter remains, a hybrid device is used or an AC memory is added, is tested on the basis of the components and requirements.
What happens to the expanded components?
We can help plan the handling of old modules and other components. Our disposal page describes advice, acceptance after coordination, collection and processing via disposal partners.
Fits your plan.
View Sources
General technical information. The concrete implementation and the services for your inventory will be personally coordinated.