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District Heating

SHC2015: Conference Combines New Technologies, Market Analysis and Policies

Submitted by Baerbel Epp on November 2, 2015
SHC ConferenceThe development of the international solar heating and cooling markets is posing great challenges: Whereas the residential market has been on the decline, market demand is shifting towards complex industrial solutions, large-scale plants for solar district heating and innovative solutions for building integration. The leading international solar thermal conference, the SHC2015, will address these key issues facing the industry. The three-day event will take place in Istanbul between 2 and 4 December 2015. The conference programme of SHC2015 has now been available online.
Photo: PSE/SHC2013
 

IEA SHC: Start of International Research Network on GW-Sized Solar Thermal Plants

Submitted by Baerbel Epp on October 23, 2015
The IEA’s solar heating and cooling programme has begun its research activities on solar thermal systems of gigawatt size. Scientists, industry representatives and utilities have been invited to participate in a definition workshop for a new task in the Austrian city of Graz on 5 November 2015. Sabine Putz, COO and R&D Manager at S.O.L.I.D., an Austrian large-scale turnkey system supplier, has proposed a four-year research programme entitled Large Scale Solar District Heating and Cooling Systems, which aims at studying economic, engineering and quality factors influencing solar district heating and cooling systems above 3.5 MW and up to GW size. 
 

Denmark: Performance Guarantees Constitute Key Element in District Heating

Submitted by Baerbel Epp on September 14, 2015
Arcon-SunmarkIn Denmark, there are currently around 576,000 m² of solar collectors providing 403 MW of thermal power to 61 district heating systems. Another 28 plants with 395 MW and 564,000 m² of collector area are in the pipeline, according to a presentation held by Danish consultant Per Kristensen at the SDH conference in Toulouse in June 2015. Widely replicable plant concepts are part of the success story. 
Source: Arcon-Sunmark
 

Germany: Solar District Heating Tenders with 3-Year Solar Yield Guarantee

Submitted by Baerbel Epp on August 27, 2015

And the winner is: Ritter XL Solar. The German large-scale turnkey system supplier was awarded the contract for a 1,422 m2 solar district heating field in the southern German town of Simmern. The solar thermal plant is part of a newly built district heating system which supplies the two communities Külz and Neuerkirch. 142 mostly residential buildings will be connected to a new, 100 % renewable heating network with a length of 5,700 m. The main heating source is a wood chip boiler, and the solar thermal system should deliver hot water over the summer months, as well as in spring and autumn. The installation of the collector field is planned for November and should take one month. It will be the largest solar collector field of Ritter XL in Germany.
Figure: Ritter XL Solar

Demonstration project: Finnish Collector Field Operating in Denmark

Submitted by Baerbel Epp on August 18, 2015
LogumklosterThe first solar district heating collector field in Denmark with direct-flow, aluminium absorbers from Finnish company Savo-Solar came into operation in July 2015. Municipal district heating company Løgumkloster Fjernvarme had ordered 9,400 m² of collector area (6.6 MWth) during the first phase of the project. “If we are satisfied with the performance, we will extend the collector field by 35,000 m² next year,” confirmed Peter G. Andersen, Head of Operations at Løgumkloster Fjernvarme. Savo-Solar used this demonstration project for a successful entry into the Danish district heating market, which was dominated by only one supplier, Arcon-Sunmark, since a merger in February 2015. The Finnish collector manufacturer won the tender by Jelling Varmevaerk in June 2015 and negotiated the final contract for the delivery of 15,000 m² collector area (10.5 WMth) with the municipality in southern Denmark. The utility aims at receiving the permits and confirming the contract by the beginning of November.
Photo: Savo-Solar
 

Austria: Up to 500 MWth for District Heating in Graz

Submitted by Baerbel Epp on August 7, 2015

Graz, the capital of one of Austria’s federal states, Styria, and a city with a population of 276,000, is planning to increase the share of solar thermal in its district heating grid by 20 %. The regional utility Energie Steiermark and the Austrian turnkey provider S.O.L.I.D. agreed in June to carry out a feasibility study for a collector field of up to 500 MWth with a matching seasonal storage. The proof-of-concept study will be a joint project of regional energy providers, S.O.L.I.D. and outside specialists. The photo shows the four collector fields with a total of 7,400 m2 partially belonging to the AEVG, the municipal waste disposal company in Graz, operating since 2007, and to Energie Steiermark, operating since 2014.
Photo: S.O.L.I.D.

Austria: Results of 40 Monitored, Non-Residential Projects

Submitted by Baerbel Epp on July 29, 2015

The sixth invitation to tender for large-scale solar thermal systems in Austria is still accepting applications until 24 September. The Austrian Climate and Energy Fund has again allocated a budget of EUR 5.9 million for installing collector fields of between 100 and 2,000 m2 for process heat, district heating, solar cooling, systems with high solar coverage above 20 % in trade and business and innovative technologies. The subsidy covers 40 % of the additional, environmentally relevant costs of the installation and grants a 5 % bonus for small and medium enterprises. As in the past, applicants must consult with experts from one of the three selected Austrian research institutes before submitting their proposal. Over the first five years, the Austrian Climate and Energy Fund spent EUR 17,258,324 on 163 projects. The pie chart shows the distribution of the 163 approved projects broken down by application.
Figure: Austrian Climate and Energy Fund

Central Europe: Solar District Heating Cost Comparison

Submitted by Baerbel Epp on July 15, 2015
Solites CostsGerman research institute Solites has compared different models of solar heat use in district heating networks by focusing on the economic viability of these projects. The study Solar Heat Networks for Baden-Württemberg – Fundamentals. Potentials. Strategies. published at the beginning of July was supported by the Ministry of the Environment, Climate Protection and the Energy Sector of Baden-Württemberg, a federal state in the south of Germany (see the attached document in German). The authors of the study analyse seven different generic types of district heating systems which integrate solar thermal, and they come to the conclusion that type 3, 6 and 7, i.e., applications in small rural district heating systems as well as integrations into existing larger urban district heating systems, generate the lowest solar heat costs. On average, heat costs are around 60 EUR/MWh over a period of 25 years, excluding subsidies. In some cases, they even get below 50 EUR/MWh. 
Source: Solites 
 

Webinar: New Business Models for Commercial Solar Thermal Applications

Submitted by Baerbel Epp on June 29, 2015
Webinar ISESThe solar thermal industry is facing a great challenge in entering new commercial solar thermal markets, be it tourism, solar process heat or large solar district heating. It needs new business models to convince commercial customers to use or to invest in solar thermal. A webinar jointly organised by International Solar Energy Society (ISES) and solarthermalworld.org on 23 June 2015 thoroughly analysed the current situation during presentations by the International Renewable Energy Agency (IRENA) and three turnkey system suppliers: Industrial Solar, Germany, S.O.L.I.D., Austria, and Nextility, USA (find all four presentations attached to this news article). One thing to take away from the webinar was: Financing is a crucial bottleneck for large-scale turnkey system suppliers.
 

Building a Solar Future – Recovering America’s Homes, Businesses and Industry with Solar Energy (2010)

Submitted by Raquel Ponte Costa on June 16, 2015

This report was put out in 2010 by Environment America Research & Police Center. The basis of this report is America’s potential and how the goal should be set to obtain 10 percent or more total energy consumption from the sun by 2030 using solar technology. Technologies described to accomplish this include: concentrating solar power, solar water heaters, solar space heating/cooling, and passive solar design. Through the use of these technologies, it can affect homes, businesses, transportation and entire communities.

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