Solar Thermal

One year of realignment at Sonnenhaus Institut

In order to qualify as a Sonnenhaus, a building must cover at least 50% of its heating requirements using solar energy. Solar thermal energy is usually used for this purpose. (Photo: Schlagmann Poroton/ Sonnenhaus Institut)

2015 was the first full calendar year following the realignment of the Sonnenhaus Institut, which allowed the combination of photovoltaics and heat pump for the first time. Most Sonnenhaus homes are still heated using solar thermal systems, but photovoltaics are also finding their place.


New hot water solar controller from Resol

The new Deltasol AL E HE is intended for hot water solar systems with electric secondary heating. (Photo: Resol)

The solar specialist Resol has launched a new solar controller for controlling hot water solar thermal systems that use electric secondary heating.


The whole solar thermal sector united in one book

The last six editions of the Solar Thermal World Address Book.

In only a few weeks we will publish the newest edition of the SOLAR THERMAL WORLD ADDRESS BOOK, the only comprehensive overview of the global solar thermal industry and its complete value chain. If you want to be part of the book and present your company to the global industry,


Book release: Heating with Renewable Energy

The new book “Heating with Renewable Energy” provides detailed discussions for each type of renewable energy heat source. (Picture: Appropriate Designs)

Heating with Renewable Energy is a new textbook written by John Siegenthaler, and published by Cengage Learning. This 850 page full colour text shows how to design and construct practical systems that supply space heating and domestic hot water using renewable energy heat sources.


Millions for new heat storage

The experimental setup for the zeolite storage system at AEE Intec. (Illustration: AEE INTEC)

A new research project by the European Union is funding the development of innovative heat storage systems with more than 4.7 million euros. The technologies are intended to help store solar heat generated during the summer inexpensively for use in the winter.


New buildings in Germany have to use renewable energy for heating

Heating systems that use fossil fuels - even condensing boilers - will have a hard time complying to new regulations in Germany. (Photo: dpa)

On the first of January, strict rules for construction came into effect in Germany. Heating new buildings without using renewable energy is nearly impossible. Oil heaters will probably not be used anymore in new single family houses.


Solar heat pump achieves energy savings of up to 30%

The project managers at the Institute for Solar Technology SPF, Igor Mojic and Michael Haller (Photo: HSR University of Applied Sciences Rapperswil)

As part of a research project, the Swiss Institute for Solar Technology SPF in Rapperswil has developed a new solar heat pump heating system that achieves energy savings of up to 30%. At the same time, the system ensures that almost no errors can occur during installation.