Energy Technology Development and Demonstration Program

EUDP supports research and development within new climate-friendly energy technologies that may help Denmark on the road to becoming free of fossil fuels (coal, oil and gas) by the year 2050. Meanwhile, EUDP funded projects are aimed at developing Danish business potentials for economic growth and employment.


The purpose was to develop and demonstrate a new efficient and flexible technology for fault localization/-diagnosis in PV systems. The technology is aimed the growing PV service market. Measurements can be carried out at the string level, and O&M costs are minimized. At the same time performance is optimized and the cost of energy is lowered.

The project brings together a number of key players for the task of developing and demonstrating a new efficient technology for screening and characterization of faults in Photovoltaic (PV) systems and panels. The project focus on a new impedance measurement technology. The technology meets the demands on the growing PV service market. Globally there is installed at least 220 GW of PV capacity (800 MW in Denmark) and the global trend is high growth rates in coming years. It is widely recognized within the PV O&M industry that faults are particular difficult to localize in systems, and that that state-of-the-art instruments must be applied on individual panels to find faults. The Danish GreenTech entrepreneur EmaZys Technologies ApS, has therefore developed a technology and an instrument, that allows fast location of faults in strings of PV panels. The instrument is connected at the terminals of the system, and measurements are carried out at an easily accessible position. The method works with different levels of solar irradiation and with all types of PV panels. Currently the alternative is to measure the electrical output power of individual panels in full daylight, in order to find the position of faults, which is inefficient and costly.


EUDP project – New technology for fast localization and characterization of faults in solar cell systems

In the project we will develop and demonstrate a new and updated version of the measurement instrument. The instrument can measure and analyse electrical data. The technical development will be focused at building mathematical models for data analysis software. A number of challenges regarding the electronic design will also be solved in the project.
The instrument will firstly be developed and optimized in a laboratory setting with simulated sunlight and reference instruments. We then proceed and conduct a full-scale demonstration of the instrument and the method for strings of panels installed in the field. Demonstration will take place on ground mounted and building integrated PV systems, to demonstrate the full spectrum of industrial applications. The technology certainly also applies for large ground mounted PV systems. Therefore we can also address the global PV O&M market where many systems in the MW range are found.

In March 2012 a new Energy Agreement was reached in Denmark. This agreement focuses on bringing Denmark closer to a target of 100% renewable energy by 2050. Wind power and renewable energy in buildings have high priority in the agreement. This project supports the Danish energy policies in a direct manner since we focus on delivering a solution that reduces service costs especially for residential PV systems. This will reduce the total cost of energy for PV, which in turn supports the spread of this environmentally friendly energy technology. At the same time we can create a new business, that has a solid export potential and we can enhance export of Danish knowledge-based GreenTech solutions.

Research fuels Asian partnership for Danish cleantech entrepreneur

Fast and accurate fault detection in photovoltaic systems is made possible by use of impedance spectroscopy through a ground-breaking Danish research project. An ideal collaboration between scientists from 3 different fields and 2 private companies has succeeded in developing a handheld device for cost efficient fault detection and has led to a collaboration with a leading Asian supplier of instruments to the photovoltaic business.

According to SolarPower Europe the solar PV market keeps growing faster than any expert is really able to predict and the latest “high scenario” prediction is up to 700 GW of global installed PV capacity by 2020. The impressive growth creates an expanding market for solar photovoltaic operations and maintenance, and further a market for products that can help to lower cost within solar system troubleshooting. The research funded by EUDP (Energy Technology Development and Demonstration Program) has developed a novel solar testing technology and brought it to the market in a hand held device called Z100. The Z100 PV Analyzer is now helping solar companies to speed up tedious fault finding routines, and optimizing the overall system economy.

As the world’s inventory of solar PV assets grows, it is not surprising to see those industries related to post-installation—operations, maintenance and asset management—exploding as well.

The cost ($/kWh) of solar electricity depends mainly on the system components and installation costs, the efficiency of the system, and the service lifetime. The service lifetime of the PV system can vary greatly if careful operations and maintenance procedures are not taken into account. For this reason, a challenge within the solar PV industry is to secure long-term stable operation form systems. It is in this context we find the outcome of the EUDP project, in the form of new products and innovations for maintenance cost optimization.
The initial market phase has focused on the market in the EU region, where about 100 GW of solar power is currently installed. This has created a solid market for operations and maintenance technology. Typical customers include EPC´s such as Conergy AG. In August 2016 EmaZys Technologies finalized a contract that confirms long-term collaboration with EKO Instruments, with the aim of bringing the technology to markets in Japan and SE Asia.

Project partners:

DTU Department of Photonic Engineering

Aalborg University Photovoltaic Systems

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