Green Technology | Breeam
BREEAM: the Environmental Assessment Method for Buildings around the World - BREEAM website.
Our lifts and escalators can generate BREEAM credits to support your building achieve the highest rating possible. We aim to recognise and encourage the specification of energy efficient transportation systems; contributing up to 2 BREEAM credits by complying with the following:
a) An analysis of the transportation demand and usage patterns for the building has been carried out by the design team to determine the optimum number and size of lifts (including counter-balancing ratio), escalators and/or moving walks.
b) The energy consumption has been estimated for one of the following:
- At least two types of system (for each transportation type required) or
- An arrangement of systems (e.g. for lifts, hydraulic, traction, MRL) or
- A system strategy which is ‘fit for purpose’ (scheduling)
- The lift or escalator solution with the lowest energy consumption is specified
Criteria “1” is achieved.
For lifts, of the following energy-efficient features the three that offer the greatest potential energy savings are specified:
- The lifts operate in a stand-by condition during off-peak periods. For example the power side of the lift controller and other operating equipment such as lift car lighting, user displays and ventilation fans switch off when the lift has been idle for a prescribed length of time.
- The lift car uses energy-efficient lighting and display lighting i.e. an average lamp efficacy, across all fittings in the car, of >55 lamp lumens/ circuit watt and lighting switches off after the lift has been idle for a prescribed length of time.
- The lift uses a drive controller capable of variable-speed, variable-voltage, variable-frequency (VVVF) control of the drive motor.
- The lift has a regenerative drive unit so that any energy generated by a traction lift (due to running up loaded to less than the counterbalancing ratio or running down loaded to more than the counter balancing ratio) or by a hydraulic lift (due to running down) is returned back to the electricity utility supplier or used elsewhere in the building.
3. For escalators and/or moving walks, each escalator and/or moving walk complies with EITHER of the following:
- It is fitted with a load sensing device that synchronises motor output to passenger demand through a variable speed drive. OR
- It is fitted with a passenger sensing device for automated operation (auto walk), so the escalator operates in stand-by mode when there is no passenger demand.