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Author: Christian Hallerberg

Zukunftskraftwerk PV

Photovoltaic hybrid power plants supply grid services and take over tasks of conventional power plants Up to now, the main challenge for photovoltaic systems on a power scale has been to produce cheap and clean electricity. Network services such as frequency regulation, voltage regulation and black-start capability are traditionally provided by fossil power plants. However, with the transition ...
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PV-DIESEL

Operating PV diesel power plants optimally and achieving high solar share - even in megawatt scale Solar power can be generated anywhere where the sun is shining. Thus, photovoltaics is predestined for the electricity supply of network-dependent regions, which until now depended on diesel generators. Currently, the so-called off-grid market for conventional diesel generators has an estimated ...
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PV-KWK

Intelligent combined systems use fluctuating solar power and ensure a sustainable energy supply More and more residential buildings, public buildings and commercial enterprises are being heated by small, decentralized combined heat and power (CHP) units. The produced current can be fed in or consumed locally. The already very cheap solar power generation makes the combination of the mini-cogene...
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LAURA

Optimized photovoltaic systems improve and cheapen solar power production In recent years, solar power generation has already become more and more affordable. Even the solar power produced by small pv systems is only half as expensive as the power from the grid. But in order to make the photovoltaics independent of subsidies, a further reduction in solar electricity production costs is necess...
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HELENE

Increase efficiency of industrially manufactured cells and increase competitiveness At the core of every photovoltaic system are the solar cells. Converted in modules, they produce electricity from the incident light. The more inexpensive the cells can be produced and the higher the efficiency, the more favorable solar power can finally be produced. In this respect, the industry-led research pr...
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HighPERC

Mechanical engineers are developing production lines for the next generation of silicon solar cells The solar sector is working with high pressure on improved solar cells, which can be produced on an industrial scale on the basis of established silicon technology. So-called PERC solar cells ("passivated emitters and rear cells"), ie solar cells, which are passivated on the rear side and are the...
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PV-LEO

Low-cost photovoltaic inverters for extreme climatic conditions The technology of today's PV inverters is geared towards European climate zones. Growth markets for PV are mainly located in the sun-rich southern region of the earth, where increased demands are placed on the ambient conditions of the technology used. These climate zones require new technical concepts and - due to the weak capital...
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SIMPLEX

Making solar cells more efficient and cheaper layer by layer The efficiency of solar cells can be increased with the so-called PERC technology (Passivated Emitter Rear Cell). The current yield increases because the back of the solar cell is passivated. However, additional process steps with high passivating and at the same time cost-effective layer systems are required for the production proc...
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TCO4CIGS

[caption id="attachment_681" align="alignnone" width="640"] Office building of Bosch in Wetzlar with a photovoltaic curtain façade[/caption] New layer systems increase the efficiency of thin-film photovoltaics Photovoltaics as a relatively young technology is far from being fully developed. Great development potential is attributable to the so-called thin film, because this technology needs a mu...
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LeiKoBa

Improved system technology for photovoltaic systems The core of a photovoltaic system is the inverter. It converts the direct current generated by the solar systems into grid-compatible alternating current. However, the requirement profile for modern inverter technology is significantly greater than the simple conversion of the generated electricity. The LeiKoBa research project focuses on syst...
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