Intersolar Europe 2018: greentech talks about the potential of inverter repowering

The Intersolar Conference is an outstanding platform where international PV-experts share their experience and discuss future trends within the solar industry. This year greentech will participate with a presentation about the potential of inverter repowering and share the collected insights of the last years with the audience. The presentation will illustrate the learnings along practical examples in connection to their regulatory context.

The relevance of inverter repowering evolves in many cases from the fact that manufacturers of these components have left the PV-market and thus cannot offer sufficient services to their customers anymore. In other cases, the warranty has expired and further services are too expensive or not satisfactory. Additionally, there is a significant commercial potential due to technical developments and decreasing costs for string and central inverters. For the implementation of this repowering measure several aspects need to be considered: The planning of the DC side as well as the integration of the new inverter on the AC side are crucial. However, in many situations further aspects such as data communication or regulatory conditions essentially influence the success of the project.

During the presentation greentech will illustrate the relevant project stages along selected practical examples and explain the respective profitability calculations:

• Partial repowering of string inverters because of insolvable downtimes
• Partial repowering of central inverters because of insufficient service quality and high maintenance costs of the manufacturer
• Inverter optimization through exchange of the control board

Conclusively, the main technical aspects, success factors and the relevant regulatory conditions will be summarized. greentech’s approach makes it simple for service providers and plant operators to identify relevant repowering projects and evaluate the economic potential of an inverter repowering.

About greentech

greentech is a service provider with offices in Hamburg and Leipzig, Germany and Milton Keynes, UK, which is specialized in the operation and maintenance of photovoltaic plants. With an interdisciplinary team of experienced professionals, greentech offers a full-service concept for all sizes of PV-plants. This includes compliance with all safety standards, quality assurances and yield maximization. greentech operates independently of component manufacturers and EPC companies and therefor exclusively represents the interests of the plant owners. With a comprehensive service offering and a current portfolio of more than 600 MWp, greentech is among the biggest independent Asset Management and O&M service providers worldwide. The growing customer base of greentech includes private plant owners as well as municipalities, local or international utilities, insurance companies and investment funds.

Along with the technical and commercial management, greentech offers further service products for all stages of a PV-project. During the planning and construction of a PV-plant, important decisions with an impact on the long-term success of the investment are made. As an independent service partner greentech secures a yield optimized plant design with all characteristics for an efficient operation and low maintenance demand. As a consequence, mistakes in the plant design or yield assessment can be identified and corrected at an early stage. Additionally, greentech’s PV-experts supervise the correct construction and support in the acceptance process to guarantee the conformity to all contractual obligations. After commissioning greentech assures a yield optimized operation and offers expertise for topics such as repowering or warranty issues. For projects at the end of their feed-in tariff life, greentech gives advice on professional asset assessment as well as proven financial concepts for a prolonged project lifetime.

You will find further information at: www.greentech.energy