Solar Thermal

New Business Models for Commercial Solar Thermal

A large solar thermal system on the roof of a bank in Geneva. (Photo: Helvetic Energy)

Which approach works best for commercial solar thermal? Several participants presented their successful business models in a webinar. S&WE recaps the most interesting points they mentioned.


Start-up company presents autonomous parabolic trough collector

The new parabolic trough collector that perSolar displayed at the Intersolar Europe in Munich. (Photo: Jan Gesthuizen)

The Berlin-based start-up company perSolar unveiled a new off-grid parabolic trough collector at the Intersolar Europe in Munich. It allows conventional pipes to be used as absorber tubes.


GREENoneTec is now selling under its own name

The new thermosyphon system from austrian manufacturer GREENoneTEC. (Photo: Jan Gesthuizen)

The Austrian OEM solar collector manufacturer GREENoneTEC has now begun selling solar energy systems under its own name for the first time. In Central and Northern Europe, however, this will go largely unnoticed.


Intersolar Award: And the winner is ...

Proud winners of the Intersolar Award 2015 (Photo: Solar Promotion)

At the start of the Intersolar Europe, particularly innovative solutions in the areas 'Photovoltaics' and 'Solar Projects in Europe' received the Intersolar Award. The prize was awarded for the eighth time as part of an official ceremony at the trade fair's Innovation Exchange.


Intersolar Europe opens doors

1,000 exhibitors are awaiting 40,000 anticipated visitors. (Photo: Solar Promotion)

Intersolar Europe has opened its doors. More than 1,000 exhibitors present their products and services on the world’s leading exhibition for the solar industry in Munich.


Parabolic solar collector for harsh conditions

The parabolic dish collector is specifically designt for harsh conditions in remote desert regions. (Photo: ZED Solar)

Solar thermal power plants with highly concentrating collectors that are located in deserts usually have an abundance of sunlight to generate energy with. Unfortunately, the mirrors must also be cleaned regularly and water is scarce and expensive in such regions. Maintenance work in remote areas is time-consuming and not exactly inexpensive.


Pressure or drain-back? The new solar heating system from Vaillant can do both!

The auroSTEP plus by Vaillant can be used as a drain-back or pressurised solar heating system. (Photo: Jens-Peter Meyer)

The system provider Vaillant has introduced a new entry-level system for solar water heating. What makes it special is that it can be used for both pressurised and drain-back systems. The system is available with storage tank capacities of 150, 250 or 350 litres. The standard version is equipped with a high-efficiency pump. For higher discharge heights in drain-back systems, the pump group has room for a second pump.