News

© Peter Jurik – stock.adobe.com

25 October 2022
Darkness during the day - Why photovoltaic researchers are concerned with solar eclipses

Power from photovoltaic systems is becoming increasingly important for the energy transition. Integrating it into the power grid as efficiently as possible is not just a matter of technical and economic aspects. Meteorological and astronomical events - such as solar eclipses - must also be taken into account.

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Joint ground-breaking ceremony of the project stakeholders for the start of construction of the residual biogas plant in Kirkel-Altstadt, Saarland.
© J. Pertagnol

05 Oktober 2022
New solid biogas plant: decentralised and cost-effective

Following a successful planning application, the construction of a residue biogas plant started on 30 September in Kirkel-Altstadt in Saarland with a ground-breaking ceremony. Approximately 2,500 tonnes of solid substrates such as horse manure or cuttings from landscape maintenance are to be fermented here every year.

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Research projects

A solar tower power plant, numerous heliostats are grouped around a solar tower.
© HAMI SOLAR THERMAL POWER CORPORATION LIMITED

Solar thermal power plants
Sharp focus with sandwich heliostats

A new sandwich mirror panel made of thin steel sheets with a core of polyurethane should help reduce electricity generation costs.

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The picture shows a III-V//silicon tandem solar cell, the nano-structured rear side shimmers in rainbow colours.
© Fraunhofer ISE - Michael Schachtner

Photovoltaics
Triple solar cells achieve record efficiency

Researchers at the Fraunhofer Institute for Solar Energy Systems ISE have developed multi-layer solar cells with an efficiency of 35.9 per cent.

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Digester of the Gussenstadt biogas plant
© Ludger Eltrop

Bioenergy
The role of bioenergy in the energy system

Bioenergy has a special role to play among renewable energy sources. To achieve this, it must be able to fit flexibly into a complex energy system.

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