Germany: Crowd Lending or Cooperatives – Different Ways to Bring Solar District Heating into Focus

Submitted by Baerbel Epp on April 24, 2015
Trier SolarvereinRenewable heat cames out on top whenever it substituted fossil energy, Swiss solar thermal pioneer Josef Jenni stated during the first panel discussion of the conference on district heating with solar and biomass, which was held in the German city of Trier on 16 and 17 April 2015. Organised by the local solar association, Solarverein, it provided a platform for experts from small and medium-sized industrial companies, universities and research institutes based in Germany, Switzerland, France, Denmark, Austria and Luxemburg to work on turning this objective into a reality by focusing on viable business models of renewable use in district heating systems. 
Photo: Vanessa Kriele
 

Design, Development, and Performance Evaluation of Solar Heating System for Disinfection of Domestic Roof-Harvested Rainwater (2014)

Submitted by Francesco Gattiglio on April 23, 2015

This research article proposes the use of a box-type solar heater for the disinfection of domestic roof-harvested rainwater in Ibadan, Nigeria. Solar water heater can be used to pasteurize water thereby destroying bacteria and viruses when heated to temperatures of about 65C.

Austria: Business as Usual Results in Market Decline

Submitted by Baerbel Epp on April 20, 2015
AEE Intec Chart 1If the Austrian solar thermal sector keeps doing business as usual, newly installed collector area will continue to decrease and end up at 122,000 m² in 2025 (152,000 m² in 2014), while collector area in operation will stagnate at around 5 million m² (4.18 million m² at the end of 2013). This is the key message of the Austrian roadmap Solarwärme 2025 (Solar Heat 2015). In their study, Christian Fink and Dieter Preiß, both from Austrian research institute AEE Intec, conclude that the downward trend is a result of shrinking demand from owners of single- and two-family buildings, especially regarding existing building stock. It seems as if the demand from the ecologically aware clientele has already been met, and it needs new marketing strategies to target other homeowners. 
Figure: AEE Intec
 

IEA SHC Task 46: Solar Irradiation Data Helps Schedule and Operate Solar Thermal Plants

Submitted by Baerbel Epp on April 19, 2015
Irradiation ChartIEA SHC Task 46, Solar Resource Assessment and Forecasting, is an SHC project conducted in cooperation with IEA’s SolarPACES for Concentrating Solar Power and the Photovoltaic Power Systems programme. Accurate assessment and forecasting of solar irradiation is a key issue in planning and operating solar electricity and solar thermal plants. Task 46 has been evaluating various forecasting models and standardisation procedures for irradiation measurement, for example, regarding detail and accuracy. Numerical Weather Prediction and cloud models based on satellite images (CM-sat) with their up-to hourly resolution are detailed enough for rough estimates of solar generation capacities within the next hours and days. Grid integration and power plant control, however, require algorithms based on CM-SI (Cloud Models based on Sky Imaging) time-series modelling to forecast irradiation seconds or a few hours away (see figure on the left). 
Figure: University Oldenburg
 

India: PRINCE Offers Solar Cooking Workshops for New Entrepreneurs

Submitted by Baerbel Epp on April 17, 2015
Prof. Ajay ChandakIndian organisation Prince – Promoters, Researchers and Innovators in New and Clean Energy – is offering training workshops on residential and institutional solar cooking to new entrepreneurs who manufacture or trade solar cooking systems. PRINCE has already conducted more than twelve workshops, and according to the organisation, more than 60% of the solar dish cooker manufacturers and suppliers registered with the Indian Ministry of New and Renewable Energy (MNRE) have benefitted from PRINCE’s training courses. The photo shows Professor Ajay Chandak, founder of PRINCE and Board Member of the International Solar Energy Society (ISES), demonstrating an improved cooker model during a workshop in February 2015.
Photo: Prince
 

Technologies and Perspectives of Solar Cooling Systems (2014)

Submitted by Raquel Ponte Costa on April 17, 2015

This presentation, given by Dr. Uli Jakob of Solem Consulting, at the AHK (German-Australian Chamber of Industry and Commerce) conference in Sydney in March 2014, gives an update on the technologies and perspectives of solar cooling systems.  It covers the different technologies used, such as sorption chillers, integrated hydraulic units and standardized solar cooling kits.  It also provides a short overview of solar collector technologies for solar cooling.

Experiences, Challenges and Barriers on Solar Thermal Energy in Ghana (2014)

Submitted by Francesco Gattiglio on April 17, 2015

This document was presented at the ECOWAS Solar Thermal Energy Capacity Building and Demonstration Programme conference held on 13 and 14 June 2014 in Praia, Cape Verde. The document, presented by Atsu Divine of the Koforidua Polytechnic of Ghana, explains why Ghana needs solar thermal technology for its development.

Solar Water Heater’s Market Evaluation: Case Study of Lebanon (2015)

Submitted by Amr Hai on April 16, 2015

The purpose of this study report (case-study) is to analyze the impact of the “Global Solar Water Heating Market Transformation and Strengthening Initiative on the development of the solar water heaters market in Lebanon.

Russia: Moscow Utility’s Costumer Service Centres Get Vacuum Tube Collectors

Submitted by Baerbel Epp on April 15, 2015
VolokolamskMoscow United Electric Grid Company, MOESK, an electric utility operating from Moscow, Russia, is planning to install solar combi systems on selected office buildings in Moscow and the adjacent region. The photo shows the first pilot project from October 2014, during which two vacuum tube collector units were installed on the roof of the customer service centre in Volokolamsk, a town in the Moscow region. Five additional solar hot water and space heating systems are planned for this year. The installations are supported by the governments of Moscow and the Moscow region, which have been simplifying permits and procedures for solar thermal system installations.
Photo: MOESK
 

Thermal Desalination Driven by an Innovative Salinity Gradient Solar Pond Located in the Coastal Waters of Open Seas (2015)

Submitted by Francesco Gattiglio on April 10, 2015

This presentation, prepared by Dr. Ir. Ing. Dick G. Klaren of Klaren International, proposes the use of a salinity gradient solar pond (SGSP) in coastal waters as renewable energy source for thermal desalination. The document was presented at the CWC Technical Seminars featured at the Saudi Water & Power Forum (SWPF), held between 12 and 14 January in Riyadh, in the Kingdom of Saudi Arabia.

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