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Energy Efficient Elevators and Escalators

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Elevators and escalators are the crucial element that makes it practical to live and work several floors above ground – more than 4,3 million units are installed in Europe. Due to ageing of the European population the installation of elevators in sin-gle family houses is experiencing a significant growth, as well as equipping existing buildings. Elevators use about 4% of the electricity in tertiary sector buildings. High untapped saving potentials exist with respect to energy-efficient technologies, investment decisions and behavioural approaches, in these sectors. This paper presents preliminary results from the IEE project E4, whose overall objective is the improvement of the energy performance of elevators and escalators, in tertiary sec-tor buildings and in multi family residential buildings. The project is characterizing people conveyors electricity consumption in the tertiary sector and in residential buildings in the EU. The installed park is characterised by a survey among elevators national associations in each country. An assessment of the barriers has been made in the first phase of the project and will be presented. Monitoring campaigns in elevators and escalators are being conducted in each country according to a common developed methodology. More than fifty elevators and escalators will be audited. This will allow the collection of load curves (start up, travel up and down, travel full and empty), including the char-acterization of standby consumption. Standby consumption of an elevator can represent up to 80% of the total energy con-sumed per year, and can be drastically reduced. This paper presents the preliminary results of the first ten audits performed in Portugal by ISR-UC.
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... For residential buildings across europe, geared technology is generally used [38]. We consider geared traction elevators for our calculations. ...
... Generally, the average energy is measured in terms of standby energy consumption and the actual consumption during ascending and descending operation. to measure these parts, the standard procedure described in [38] and [39] is used. ...
... The average characteristics for residential geared elevators[37],[38] ...
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... However, elevators and escalators have not received much attention in terms of energy efficiency for a long time. Results of the E4-project which form the basis for this paper estimate the savings potentials of energy efficient technology up to 55 to 66% for elevators and to 28% for escalators thus holding a significant potential waiting for realization [4]. Energy efficient elevators: performance and strategies Presently elevators and escalators represent 1% of the total electricity consumption in the tertiary sector ( Figure 1), with a trend for a significant increase of this share. ...
... Escalators and moving walks are estimate to consume around 900 GWh of electricity each year [4]. ...
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Draft International Standard ISO/ DIS 25745-1 Energy Performance of Lifts and Escalators – Part 1: Energy Measurement and conformance Lindegger Urs, Energy estimation: Document for Energy consumption and efficiency potentials of lifts
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/DIS 25745-1, 2008] Draft International Standard ISO/ DIS 25745-1 Energy Performance of Lifts and Escalators – Part 1: Energy Measurement and conformance, 2008 [Lindegger, 2008] Lindegger Urs, Energy estimation: Document for E4, ELA, VDI & ISO, 11 June 2008 [Nipkow and Schalcher, 2006] Jürg Nipkow and Max Schalcher, " Energy consumption and efficiency potentials of lifts ", S.A.F.E. (Swiss agency for efficient energy), EEDAL 2006
CIBSE Guide D: Transportation systems in buildings
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CIBSE, 2008] "CIBSE Guide D: Transportation systems in buildings", The Chartered Institution of Building Services Engineers London, September 2005, Reprinted with corrections in July 2008
Electrical and electronic measurement equipment -Expression of the performance [Enermodal
[EN 60359, 2002] EN 60359:2002 Electrical and electronic measurement equipment -Expression of the performance [Enermodal, 2004] "Market Assessment for Energy Efficient Elevators and Escalators", Final Report, Prepared for the Office of Energy Efficiency and Natural Resources of Ottowa by Enermodal Engineering Limited, Canada, September 2004