Last edited 01 Feb 2019

BREEAM Energy efficient transportation Systems

Contents

[edit] Aim and benefits

BREEAM encourages the specification of energy efficient transportation systems within buildings and promotes the use of energy efficient features to save energy and operational costs.

[edit] When to consider

This issue is not RIBA stage dependent.

[edit] Step by step guidance

Where lifts, escalators or moving walkways are specified, advise the design team that a building specific transportation analysis is required to determine the optimum number and size of equipment.

The energy consumption of at least two options (e.g. for lifts – hydraulic, traction or machine room-less) OR different system arrangements and control strategies should be considered, and the transportation system with the lowest energy consumption specified.

Lifts with speeds less than 0.15m/s fall outside the scope of ISO 25745 and can be excluded from the assessment of this Issue. This applies, for example, to lifts in single dwellings or those installed in other low-rise buildings, specifically for the use of persons with impaired mobility.

[edit] Questions to ask while seeking compliance

  1. Has a compliant transportation analysis been undertaken to inform the transportation specification?
  2. Has the energy consumption for the options been calculated.
  3. Has the use of regenerative drives been considered.

[edit] Lifts

Are the following three energy efficient features specified?

  • A stand-by condition for off-peak periods
  • Lift car lighting and display lighting providing average luminous efficiency of >70luminaire lumens per circuit Watt
  • A drive controller capable of variable speed, variable-voltage and variable frequency (VWF).

[edit] Escalators or moving walkways

Has at least one of the following been specified for each escalator or moving walkway

  • A load sensing device matching motor output to passenger demand through a variable speed drive OR
  • A passenger-sensing device so that the equipment moves into standby mode when there is no passenger demand.

[edit] Tools and resources

BS EN ISO 25745

[edit] Tips and best practice

BREEAM recognises that lift manufacturers / suppliers are often engaged to provide such specialist advice. Where the assessor is satisfied that the analysis has been carried out correctly, the analysis can be submitted as compliant evidence.

[edit] Typical evidence

[edit] Design Stage

The transport analysis. This can be in the form of a written statement justifying the lift selection.

Lift, escalator and moving walkway specifications.

Manufacturer's information.

[edit] Post construction

As built design drawings.

Photographic evidence.

[edit] Applicable Schemes

The guidelines collated in this ISD aim to support sustainable best practice in the topic described. This issue may apply in multiple BREEAM schemes covering different stages in the life of a building, different building types and different year versions. Some content may be generic but scheme nuances should also be taken into account. Refer to the comments below and related articles to this one to understand these nuances. See this document for further guidelines.

BRE Global does not endorse any of the content posted and use of the content will not guarantee the meeting of certification criteria.