Latvian city invests in solar district heating

The first solar district heating system in Latvia is being developed in Salaspils. The solar district heating system has a collector field with a total of 1.720 collectors or 21.672 m2. The installation will be the biggest large-scale solar district heating system in Europe – if you do not […]

Big Solar Graz – reaching next milestones

Solid has been developing a concept for supplying up to 25% of district heating of Graz with solar thermal energy and a seasonal storage in late 2015.

Today, the project has developed reaching significant milestones. The land for both, the storage and the solar collectors is secured. The consortium consisting […]

New standard to improve energy performance of historic buildings

Maintaining the exterior of a historic building while raising energy efficiency is not necessarily a contradiction. The new EN 16883:2017 standard, Conservation of cultural heritage, provides guidance on how to improve the energy performance of historically significant structures. A group made up of 45 experts from 12 countries had […]

The role and potential for solar thermal in future energy systems

By Kenneth Hansen & Brian Vad Mathiesen 

The necessary reductions in greenhouse gas emissions to the atmosphere need to occur within the next decades. During that period, significant renewable energy volumes will be installed, but the challenge is which technologies to prioritize.

Currently, wind and solar power for electricity generation have […]

Landfill transformed into renewable energy site

A closed landfill at the city-border of Graz in Austria now has a new purpose. A plant combining solar energy with gas from the landfill has been constructed and supplies the local community with district heating. Arcon-Sunmark had developed the plant which is a role model example of how […]

The world’s largest solar hot water system powered by Danfoss

SONDEX® heat exchanger technology and VLT® drives ensure world-class efficien-cy in pump control and heat transfer. The world’s largest solar hot water system re-duces annual CO2 emissions by 15,700 tons annually in Silkeborg, Denmark.

The world’s largest solar hot water system harnesses energy to heat the homes and workplaces of […]

Urban solar heating system in Berlin

On behalf of Vattenfall Arcon-Sunmark is constructing a solar heating system in Berlin. The project is one of the first to be developed in a major city and will supply the residents with 14.000 CO2-free showers annually.

Vattenfall, the leading European energy company, has set an ambitious objective to make […]

First Spanish solar district heating system for 12,000 families

In February, Alcalá Ecoenergías signed a deal to construct a district heating system powered by solar and biomass in Alcalá de Henares, a city in Spain. The agreement between the local company and the municipal government will lead to one of the country’s first-ever large-scale solar district heating systems, […]

German edition of District Energy White Paper

A new German edition of the District Energy White Paper has been released.

Read and download the white paper here

Solar and biomass – a winning solution for district heating

Biomass may be cheap and carbon-neutral, but a solar upgrade of biomass-fired district heating could further improve efficiency and reduce local emissions. For example, solar heat helps avoid having to start up and shut down wood-chip boilers or operate them at partial load. It can even replace backup fossil […]

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