Articles written by Mirco Sieg

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When is a yield loss worth investigating? Interview: When investigating module defects, the cost-benefit ratio is key. Robert Golz from O&M company Enovos explains when troubleshooting is worthwhile and in which cases it would be better to wait before applying extensive – and often expensive – inspection methods.
Mirco Sieg
Dec 08, 2017
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Applications & Installations
What happens when… modules get dirty? Troubleshooting series: Steadily declining system yield over the years is to be expected due to module degradation in photovoltaic systems. But in the following case, the yield abruptly dropped – and it happened after several years of operation. In this series based on real cases, pv magazine aims to make assessment of troubleshooting efforts more concrete and stimulate a discussion about troubleshooting efficiency today.
Mirco Sieg
Nov 15, 2017
1
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Leafs on wet module
Applications & Installations
What happens when… insulation fails? Series troubleshooting: Individual insulation failures are often difficult to detect in monitoring. And when such problems are suspected, it is an additional challenge to pinpoint them precisely. In this series of realistic cases, pv magazine aims to make the estimation of troubleshooting efforts more concrete and to stimulate a discussion on today’s troubleshooting efficiency.
Mirco Sieg
Nov 14, 2017
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Applications & Installations
What happens when… several module strings fail? Series troubleshooting: If several module strings fail completely, the result is usually high yield losses. But to identify the strings and correct the failure can sometimes be a challenge. In this series with realistic cases, pv magazine aims to make the estimation of troubleshooting efforts more concrete and to stimulate a discussion on today’s troubleshooting efficiency.
Mirco Sieg
Nov 13, 2017
1
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Applications & Installations
What happens when… bypass diodes fail? Series troubleshooting: Bypass diodes fail regularly, either because they do not have a high enough power rating or because they are overloaded due to nearby lightning strikes. With the following hypothetical, but realistic case pv magazine starts a series which aims to make the estimation of troubleshooting efforts more concrete and to stimulate a discussion on todays troubleshooting efficiency.
Mirco Sieg
Nov 08, 2017
3
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Finding fault O&M case studies: Two hypothetical scenarios and one actual case study of solar faults in the field serve as a reminder of both the importance of sophisticated O&M, and the need for a professional and proactive approach to PV maintenance.
Mirco Sieg
Nov 07, 2017
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Research & Development
Germany’s VDMA publishes new edition of PV Roadmap The roadmap provides an overview of the market for crystalline photovoltaics in 2016 and forecasts the most important developments for the coming years.
Mirco Sieg
Sep 06, 2017
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Technology & Products
SolarWorld announces lay-off plan The company said that continuing it’s business operations is possible only with reduced staff. Production must keep going in the interest of possible future investors.
Mirco Sieg
Jul 18, 2017
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Rising tension High voltage storage: A growing number of battery and inverter manufacturers are introducing high voltage batteries into the market, but the developmental and adoption road maps are not as linear as they may first appear.
Mirco Sieg
Jun 07, 2017