Renewable Energy Solutions

iC clean energy solutions GesmbH [email protected] www.ic-group.org www.ic-ces.at

Renewable Energy Solutions Solart Thermal and Heat-Pump Systems for Hotels

Klaus Kogler09.05.2014


Contents Introduction: iC group of companies

Introduction: personal expertise

Characteristics of the hotel / tourism sector regarding EE and RE

Reflection on solar thermal energy / heat-pump systems for hotels


iC consulenten is a strong collective of top experts from different countries and disciplines who offer customised solutions for problems and projects

all over the world, focussing on Austria, CEE and SEE. iC consulenten employs over 300 people and is one of the largest engineering firms in

Austria. The company boasts a wide range of skills, which allows interdisciplinary thinking and provides innovative solutions.

innovative | interdisciplinary | international

SERVICESProject Planning & DevelopmentTendering & Award of ContractsProject ManagementProject Coordination & ControllingSite SupervisionStudies & ConsultingDue DiligenceSmart Cities ResearchMasterplanning

SECTORSEngineering & EconomicsBuildings & StructuresMechanical & Electrical EngineeringTunnelling & GeotechnicsEnergy & EnvironmentWater & Waste ManagementTransport & LogisticsInformation & Technology

MAIN OFFCIEiC consulenten Ziviltechniker GesmbHSchönbrunner Strasse 297A-1120 Vienna

Branch offices in

Carinthia • Lower Austria • Salzburg • Ankara • Athens • Belgrade • Bratislava • Bucharest • Kiev • Ljubljana • Pristina • Sofia • Tirana


www.etf-group.org


Characteristics Hotel Sector Large hotel chains in Europe

mostely city locations / city tourisms / occupation all year round have established benchmarking systems standardisation allows for high end solutions towards energy efficiency attract manufacturing companies proving energy efficiency solutions energy savings potential is typcially between 2 % and 5 % (max. 10 %) solar thermal energy is considered as a viable source for DHW preparation /

other renewable energy solutions depend on philosophy of the owner/s Individual hotel operations less standardisation, if any more often focusing on seasonal tourism less stable ownership energy savings potential typcially above 10 % , up to 30 % RE are typcially not considered as a viable solution


Hot Water Consumption Especially for 4* and 5* hotels

up to 2000 L/m²a up to 100 kWh/m²a pool heating, pool feed water, laundry, etc.

Reference hotel case (worst case)

100,00 kWh/m²a

4.600,00 m²

460.000,00 [kWh/a] … demand

511.111,11 COPel 0,9 … consumption

0,10 EUR/kWh

51.111,11 EUR/a


Solar Thermal


Solar Thermal (5% interest)


Solar Thermal (16 cEUR/kWhel)


Heat Pump


Heat Pump (5% interest)


Heat Pump (16 cEUR/kWhel)


Reflection on ST vs HP Careful, the above calculations were not taken into consideation the

piping costs for the required distribution, but, in conclusion:

Electricity price is key to achieve a viable investment in RE Low interest rates are supportive All year round operation is recommended for Solar Thermal HP system outperforms ST at the availability of low cost energy ST becomes interesting at 16 cEUR/kWhel and above

Summary on the expected paybacks

Solar Thermal Hot Water Preparation Hot Water Preparation through a HeatPump10 cEUR /kWhel 16 cEUR/kWhel 10 cEUR /kWhel 16 cEUR/kWhel

10% interest 15 to 20 years 10% interest 4 to 7 years5 % interest 9 to 15 years 5 to 10 years 5 % interest 3 to 6 years 2 to 5 years


Thank you for your attention!

Klaus KOGLER, DI (FH), MScSenior Expert, LEED AP, Estidama PQPInnovative Building Services Engineering and RTD Services

CES clean energy solutions GesmbHSchönbrunner Str. 297, 1120 Vienna, AustriaT +43 1 521 69-232, F +43 1 521 69-180M +43 664 601 69 [email protected]


Renewable Energy Solutions Solart Thermal and Heat-Pump Systems for Hotels

Klaus Kogler09.05.2014

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Renewable Energy Solutions