HK Electric Investments is the first fixed single investment trust listed in Hong Kong with a focus on the power industry. Our principal operating subsidiary, The Hongkong Electric Company, Limited (HK Electric), commenced operations in 1890 and is one of the longest-established utility companies in the world.
Over our long history, we have consistently supported Hong Kong's economic journey by offering safe, reliable and affordable electricity while minimising the impact of our operations on the environment as we strive to deliver sustainable growth in long-term value to our investors.
HK Electric Investments believes that open and on-going communication with our stakeholders is central to our operation and development. We engage different stakeholders through a variety of channels and stakeholder suggestions and feedback are highly valued in our decision making process as we strive for continuous improvements.
Underpinned by its core value of "Pursuit of Excellence", HK Electric is committed to delivering excellent services and supply reliability to our customers. We have been providing a world-class supply reliability of over 99.999% since 1997 and all our service standards are achieved or even surpassed every year.
As modern families aspire to an eco-friendly lifestyle, HK Electric promises its customers a green and comfortable way of life made possible by the use of electric appliances.
HK Electric is one of the longest-established power companies in the world. The Company has a world-class record of providing a highly reliable electricity supply to Hong Kong and Lamma islands at a reasonable and affordable price.
HK Electric has been the power behind Hong Kong for more than 120 years, having established a long and fruitful partnership with the community. While our prime mission is to provide a world-class electricity supply, we focus not only on the results, but also on the way we deliver them.
HK Electric aspires to be an employer of choice. We have policies and systems in place to attract talents and through continuous training and development, nurture them for a fulfilling career. We offer competitive remuneration, an ideal workplace and comprehensive wellness programmes for our employees while maintaining regular and open dialogues with them.
Marsh Road Station Building adopts a green building concept
cable tunnel in Hong Kong --- Wah Fu-Bowen Cable Tunnel
The process of transmitting electricity from the power station to the load centres is termed 'Transmission', whilst the process for distributing electricity from the load centres to customer buildings is termed 'Distribution'.
HK Electric supplies electricity to Hong Kong Island and Lamma Island. Electricity is generated at Lamma Power Station and transmitted at very high voltage - 275kV and 132kV - to various load centres via the transmission system. The network mainly comprises 275kV and 132kV underground and submarine cables. At present, there are only a few 132kV overhead lines remaining in the system. In the major load centres where the transmission circuit ends, large capacity transformers are used to step down the voltage to 11kV or 22kV before distribution to customer substations.
Electricity is distributed at 11kV and 22kV to over 3,900 customer (distribution) substations on Hong Kong Island and Lamma Island. Voltage is further stepped down to 380V 3-phase or 220V single-phase and supplied via the low voltage underground cable system to customers. Distribution substations are equipped with remote control and monitoring facilities so that operation of switchgear and auxiliary equipment can be activated remotely from the System Control Centre located at Ap Lei Chau.
The use of underground cables in the transmission system ensures supply reliability even in inclement weather such as typhoon and is ideal for a densely loaded area like Hong Kong. In addition to burying the cables directly underground, six dedicated cable tunnels have been built to accommodate some of the 275kV fluid-filled cable circuits. The first cable tunnel, connecting Wah Fu and Bowen and measuring 3.1km, was commissioned in 1988. Inside this tunnel, there are four conventional fluid-filled cable circuits. The second cable tunnel between Nam Fung Road and Mount Parker, which was commissioned in 1993, has a length of 5.7km. It carries one XLPE insulated and two fluid-filled 275kV cable circuits which have adopted Polypropylene Laminated Paper (PPLP) as insulation material so that smaller conductor size could be used for the same cable rating, in order to reduce the transportation size of the cable used inside the tunnel. The other four cable tunnels are the Tin Wan-Wah Fu Cable Tunnel and Cyberport-Wah Fu Cable Tunnel, both of about 0.8km, the 0.2 km Yung Shue Wan Cable Tunnel and 0.1 km Pak Kok Tsui Cable Tunnel.