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General information |
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Name |
AVL Graz
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Country installed |
Austria
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Address |
Hans-List-Platz 1, Graz, Austria
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Industry sector, NACE code |
C29 - Manufacture of motor vehicles, trailers and semi-trailers
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Solar thermal system owner / operator |
SOLID Solar Energy Systems GmbH (Esco)
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Solar thermal engineering company |
SOLID Solar Energy Systems GmbH
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Process integration engineering company |
SOLID Solar Energy Systems GmbH
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Year of operation start |
2015
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Technical parameters |
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Collector technology |
flat plate collector
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Collector name |
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Installed collector area (gross), m² |
3530.0
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Installed collector area (aperture), m² |
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Installed collector area (absorber), m² |
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Installed thermal power (estimated), kWth |
2471.0
(Default value calculated by multiplying the gross collector area by 0.7 kWth/m²)
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Solar collector loop heat transfer fluid |
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Solar energy storage |
short-term water storage
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Storage volume, m³ |
110
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Kind of conventional heat source |
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Kind of fuel used |
natural gas
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Process |
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Solar thermal energy used for |
process heating and cooling
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Unit operation |
other process heating
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Point of Solar Heat Integration |
C) Other integration points (please specify)
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--> Integration how and where |
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--> Temperature range process |
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--> Temperature range solar loop (min/max), C° |
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Economic parameters |
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Total investment costs (excl. VAT), € |
1.00
(Turnkey costs including solar collectors, piping, support construction, storage, design, commissioning reduced with subsidies)
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Solar loop (excl. VAT), € |
(Solar collectors, piping, support construction)
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Solar energy storage (excl. VAT), € |
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Others (excl. VAT), € |
(Design, commissioning, others)
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Process integration (excl. VAT), € |
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Subsidy, € or % of total investment costs |
no subsidies
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Cost for fuel replaced, €/MWhfuel |
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Calculated solar thermal system life time, a |
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Annual useful solar heat delivery, MWh/a |
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Specific annual useful solar heat delivery, MWh/am² |
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Specific investment costs, €/m² |
0.0
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Solar fraction, % |
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Lessons learned |
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Initiative |
AVL is a world leading company headquartered in Graz. AVL is employing more than 7,000 engineers in the Graz facility alone, and is using multiple engine test stands. The company is very environmental conscious and contacted SOLID as a new parking deck offered the opportunity to install a solar system.
AVL and SOLID jointly evaluated the energy demand and SOLID installed in 2015 based on an ESCo agreement a solar plant with 1,584 m² collector area and a storage of 110 m³ to reduce AVLs needs from natural gas and district heating but as well to built a roof above the top floor of the parking deck.
AVL was satisfied with the first stage and still had thermal demands to cover.
Together AVL and SOLID identified two more roofs that could be equipped with solar collectors. The heat demand in summer was already covered, however AVL has significant cooling demand. So the second and third phase of the project was designed to integrate an absorption chiller with 680 kW and a total of 1,945 m² solar collectors. With this system, AVL can cover additional cooling needs in summer and support process and space heating in the remaining year.
Source: https://www.solid.at/en/reference/avl-company.html
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Integration methodology |
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Crucial Interfaces |
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Construction / Commissioning |
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Operation / Performance |
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Recommendations |
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Source |
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Author |
Alexandra Michelitsch based on SOLID
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Company of author |
AEE INTEC
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E-mail |
a.michelitsch@aee.at
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Phone |
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Homepage |
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