In this issue
Ukraine: IT Company Building to Have Solar Drainback System

Mexico: Solar Process Heat Beats Fossil-Fuel Boiler in Energy Cost

Portugal: Two New Incentive Schemes on the Horizon

Slovakia: Newest Member Country of IEA Solar Heating and Cooling Programme

California: San Francisco Passes First Mandate with Solar Thermal Option
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Cooling and Regeneration – Two New Applications Offer Great Energy-Saving Potential

Dear Solarthermalworld.org Reader, 

 

Solar collectors can be used for a large variety of applications. The well-established ones are certainly domestic hot water and space heating. Air heating or cooling as well as steam production are becoming increasingly popular. This newsletter shows two new applications which have not yet been widely used, but which offer large energy-saving potential: vacuum tube collectors feeding into the circuit of a compression chiller and unglazed collectors to regenerate a borehole field.    

 

The photo shows a 160 m² collector array on the roof of a fruit processing plant in the UK. The special characteristic of this system is the refrigerant gas flowing through the U-pipes of the vacuum collector field and providing a boost in mass flow inside the condenser of the compression chillers. This retrofitted collector field, delivered by the British company SolarCool, is connected to a five-chiller installation, reduces the chillers’ annual electricity demand by between 20 and 30 %. 

 

Additionally, unglazed absorbers can be connected to the back of PV modules to absorb the waste heat of the solar cells. A Swiss demonstration plant In a multi-family housing area with 1,300 m² of PVT collectors, manufactured by Swiss PV specialist Meyer Burger, shows a solar thermal yield of 330 kilowatt hours from otherwise wasted heat in addition to the 160 kilowatt hours of solar electricity – both for each m² of module surface. 

 

Enjoy the sunshine while it lasts

The Editorial Team

 

SolarCool

Meyer Burger

Ukraine: IT Company Building to Have Solar Drainback System
by Bärbel Epp

Lviv IT Cluster, one of Ukraine's leading IT businesses, is currently building up a multi-family house for its employees that meets all the requirements for a smart property, including a modern heating system. It offers 72 flats on ten floors and is being built in Lviv, in western Ukraine. The gas condensing boilers for the heating station on the most upper floor will be delivered by German boiler and collector manufacturer Vaillant Group, which is also said to install the 30 collectors on the building’s roof once construction has been completed.

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Mexico: Solar Process Heat Beats Fossil-Fuel Boiler in Energy Cost
by Bärbel Epp
 

Mexican company Inventive Power helps industrial customers to reduce their energy costs, which in turn reduces pollution in major cities. The founder and CEO of Inventive Power emphasised that concentrating solar systems could offer energy at significantly lower cost than thermal power generation by natural gas or oil. The photo shows a parabolic trough installation with 433 m² of mirror aperture at the Nestlé dairy factory in Lagos de Moreno, central Mexico, which started operating 2014.

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Portugal: Two New Incentive Schemes on the Horizon
by Filipa Cardoso

Good news for the Portuguese market: This year’s agenda includes two new schemes to support energy efficiency measures in buildings, and solar thermal has been put into the spotlight. The first programme, Aviso 20 – Edifícios Eficientes 2016 (Efficient Buildings), has already been open to applications since 8 July 2016. Its budget of EUR 1.1 million covers up to 60 % of the cost of efficiency measures, including new solar water heater installations, in existing residential and commercial buildings. The second programme, Casa Eficiente (Efficient Home), is still under development, but the scheme’s much larger budget of EUR 100 million will offer low-interest loans for efficiency measures in the residential sector.

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Slovakia: Newest Member Country of IEA Solar Heating and Cooling Programme
by Bärbel Epp
 

Slovakia is the first country from Eastern Europe to join the IEA Solar Heating and Cooling Programme. Since its admission, the small nation of only 5.5 million people has been represented by Artur Bobovnický (photo) from the Slovak Innovation and Energy Agency (SIEA). Bobovnický took on the position of Director of Innovation and International Cooperation at SIEA in June 2014. Shortly thereafter, he was made aware of the great potential of the IEA‘s Technology Collaboration Programmes and successfully convinced the Slovakian government to sponsor membership.

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California: San Francisco Passes First Mandate with Solar Thermal Option
by Bärbel Epp

After Lancaster, Sebastopol and Santa Monica, San Francisco is now the fourth – and the largest – US American city to mandate the use of solar energy in residential and commercial newbuilds. It also has the first mandate in California which can be complied with by using either solar thermal or photovoltaics. The other three cities stipulated the installation of a PV generator at newly developed premises.

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