The 'waste' club

Zero tolerance policy to tackle paper waste

Going digital for the environment

• Digitisation efforts aimed to reduce paper consumption
• 85 % less physical letters (paper) sent to customers
• Graphic paper consumption dropped by 76.4 %

Skandinaviska Enskilda Banken (SEB) is a major Swedish financial group for corporate customers, institutions and private individuals with headquarters in Stockholm. 

An uninterruptible power supply (UPS) is an electrical system containing storage systems (e.g. batteries, flywheels) capable of supplying high-quality electrical power without interruptions. The input of the UPS interface is connected to the main electrical supply, and the output is connected to the customer electrical load.

Seriously, voltage optimisation rocks!

Voltage management is an umbrella term for various technologies aimed at optimising, stabilising, regulating, or plain reducing the amount of volts needed to run equipment.

The implemented measure:

• Optimizes the operating voltage to the required value, depending on the consumption at each stage, stabilizing the overvoltage and undervoltage in the consumer's network

• Filters distortion of harmonics and interharmonic frequencies to the minimum level

Turning over a page in resource saving

A high-efficiency motor (HEM) is an electric motor than performs above mandatory minimum. New materials, better design, and better manufacturing have led to major improvements in motor efficiency overall.

Savings realised by using HEMs can quickly outweigh the purchase and installation costs because these modern motors cost less to run than conventional units. This means the purchase costs can be recuperated during its operational life.

When running at low load, electric motors are less efficient. A motor power optimiser (also known as load sensing optimisers) could save between 5 % and 15 % on electricity.

Motor optimisers are solid-state devices that automatically monitor the load on an electric motor. Under low load conditions, they reduce the voltage.

Flat belt drives are simple mechanisms that enable power from a rotational power source (e.g. electric motor or combustion engine) to be transferred to rotating machinery. Previously, flat belt drives had problems (especially with high tension and alignment). However, improved designs and advances in materials now mean that both low and high-power transmission is efficient using flat belt drives.

Compared to V-belt drives, flat belt drives are 2.5-3 % more efficient, and investment costs can be recouped in a few years. The advantages of using flat belt drives are:

VSDs prove that speed really is relative after all

Variable speed drives (VSDs) – also known as drive frequency converters, adjustable speed drives, or inverters – are an increasingly popular measurement and control system in industry.

VSDs can adjust electricity supply to an AC induction motor, automatically and accurately changing its speed and torque output to match real-time demand on the machine.

Result