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Heat Storage

Switzerland: New Factory for Large Storage Tanks

Submitted by Baerbel Epp on December 2, 2013

Swiss tank manufacturer Jenni Energietechnik is about to complete its new production line for large solar tanks in the Swiss town of Oberburg. The company invested Swiss Franc (CHF) 14 million in machinery and a four-storey building. The first tanks are said to leave the factory at the beginning of 2014. The expansion already started in the second half of 2011. Jenni plans to use the new production line to manufacture tanks between 700 litres and 200 m³. The photo shows the new multi-coil cutting machine that can process steel coils with a thickness of up to 6 mm. So far, the old line has only been able to cut steel coils of up to 3 mm. Thicker sheets had to be cut and transported to Oberburg from another company.
Photo: Jenni Energietechnik

India: New Five-Year Guarantee on Solar Tanks

Submitted by Baerbel Epp on December 2, 2013

Many Indian regions suffer from bad water quality: More than 75% of the country has moderately hard to very hard water. Chloride levels are also high in specific areas when water is obtained from boreholes. The “desired” legal chloride limit for drinking water is 0.25 g/litre, but is allowed to increase to 1 g /litre. As a result, solar thermal storage tanks gradually corrode and tend to develop leaks. Statistics obtained from the national Helpline show that over 70% of product-related complaints are about leakages in storage tanks. The photo shows a corroded extremely scaled hot water tank.
Photo: Jaideep Malaviya

Philippe Papillon speaks of INES' different Solar Thermal Energy Projects

Submitted by Raquel Ponte Costa on March 27, 2012

Interview with Philippe Papillon from INES, made during ESTEC 2011 conference in Marseille. Philippe speaks of his organisation's work on solar thermal energy. 30% of the 15-strong team's time is spent on system design and testing, with a main focus on auxiliary consumption and the reduction of cost of solar energy. They also work on component design, specifically targetting preliminary components as an effective way to reduce costs.

Technology Review and Selection of CSP and Desalination Configurations (2009)

Submitted by Raquel Ponte Costa on December 20, 2011

This Final Report is the deliverable of Work Package (WP1) from the MED-CSD Project. Designed to assess combined solar power and desalination plants’ technico-economic potential in Mediterranean Partner countries, it was a project funded by the European Commission under the 7th Framework Programme (FP7). It ran between June 2008 and June 2010.

Case Study: Dairy Farmers Milk Free Energy (2009)

Submitted by Raquel Ponte Costa on November 7, 2011

This case study is the result of a partnership between New Zealand’s Energy Efficiency and Conservation Authority (EECA), the country’s dairy farmers and technical experts, showing the benefits of solar water heating and waste heat recovery systems used to reduce energy costs.

Europe: Solar Keymark Scheme Rules for concentrating solar collectors

Submitted by Baerbel Epp on November 6, 2011

 Solar Keymark Network MeetingDuring the meeting in Paris in October 2011, the Solar Keymark Network has accepted an extension of the Solar Keymark Scheme Rules. In the future, Solar Keymark will be available for both solar water heater stores and concentrating solar collectors. At the same meeting, the Solar Keymark Network has approved the new Annual Collector Energy Output Calculation Tool as a standard measuring tool for all Solar Keymark certified collectors. The energy output calculated with it can from now on be found on all Solar Keymark data sheets.
Photo: Henry Rosik

Germany: District Heating Companies encourage Customers to feed in Solar Heat

Submitted by Baerbel Epp on October 27, 2011

 District Heating Project in Hamburg WilhelmsburgIn Hamburg in northern Germany, two district heating providers encourage their customers to supply the companies' networks with heat generated from individually owned solar collectors or other renewable sources. E.On Hanse Wärme offers to store heat for a fee, whereas Hamburg Energie buys renewable heat for a fixed price per kWh.
Photo: IBA Hamburg

Switzerland: Jenni Energietechnik AG expands Production Capacity

Submitted by Baerbel Epp on October 24, 2011

 Storage Production of Jenni Energietechnik AG, Switzerland Orders for large solar storage tanks are on the rise: Swiss Jenni Energietechnik AG is currently expanding its production capacity to meet the greatly increased demand. At its Oberburg headquarters, the solar company is constructing a new building for the manufacturing of large storage tanks. According to CEO Josef Jenni, the additional facility will enable the company to produce five times as much as before.
Photo: Jenni Energietechnik AG

Germany: Independent of Energy Utilities

Submitted by Baerbel Epp on May 18, 2011

 Helma’s energy self-sufficient home ” Living without gas and electricity grid connection: On 5 May, German building promoter Helma Eigenheimbau AG inaugurated its first energy self-sufficient home located in the 'show house park for sustainable construction' at the company’s headquarters in Lehrte, Germany. The sun supplies the thermal energy required for hot water and space heating, as well as the electricity for the household and the electric car. As a result, the house is completely independent from any energy suppliers.
Photo: Helma Eigenheimbau AG

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