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.
To satisfy the aspirations from the community, and in support of Government’s energy and environmental policy objectives, HK Electric has launched a suite of "Smart Power Services".
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 Investments is committed to meeting the long-term energy needs and supporting the sustainable development of the community we serve. To do this, we focus not only on powering Hong Kong with a world-class electricity supply, but also on the way we deliver it and the impacts it has on the environment.
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.
HK Electric has three types of tariff. For details of the tariff structure, please click the picture below:
Maximum Demand Tariff
This section explains the structure of Maximum Demand Tariff and how to evaluate whether the Maximum Demand Tariff can help you reduce electricity charges.
Structure of Maximum Demand Tariff
Maximum Demand Tariff consists of two parts, i.e. demand charge and energy charge. The demand charge is based on the maximum demand in kVA, while the energy charge depends on the energy consumption in Unit (kWh) of the month. Tariff charges are subject to a minimum of 100 kVA of the chargeable demand.
Maximum Demand Tariff is only beneficial to electrical installations with a high load factor. This applies to accounts of considerably high electricity consumption over a long period of time with a steady load. If these conditions are not satisfied, it is possible that the electricity charge could be higher under Maximum Demand Tariff than Non-Residential Tariff.
Basic Criteria for Applying for Maximum Demand Tariff
The following basic criteria must be fulfilled for you to apply for Maximum Demand Tariff:
Maximum Demand (kVA) of An Installation
The Maximum Demand is expressed in kVA and will be recorded by a Maximum Demand Meter. The demand is averaged over a period of 30 minutes.
The graph below demonstrates how the demand of each 30-minute interval is measured.
The demand of an installation for the period under consideration= (1 min x 1000 kVA + 20 min x 200 kVA + 9 min x 500 kVA) / 30 min= 317 kVA(i.e. average value of kVA over 30 minutes interval)
There are thus 48 'demand' values in a day and the Maximum Demand in a month is the largest 'demand' value occurred in the month.
Comparison Between Maximum Demand Tariff and Non-Residential Tariff
Note:1. The above examples are for reference only2. Net Rate = Basic Charge + Fuel Clause Charge - Rebates
Assessment of Maximum Demand
The above two examples illustrate how the value of Maximum Demand (kVA) affects the actual amount payable of the electricity bill. Therefore, customers should conduct maximum demand measurement / monitoring of their installations to ascertain there are savings made under Maximum Demand Tariff.
We strongly recommend our customers install recorders to measure the actual kVA value of their installations by registered electrical contractors and assess whether Maximum Demand Tariff is beneficial to them before applying for Maximum Demand Tariff.
Customers who wish to apply for Maximum Demand Tariff after the appraisal can send an application letter to us to initiate the processing. If all the criteria for Maximum Demand Tariff are fulfilled, we will forward an application form and the Terms & Conditions for Maximum Demand Tariff to the applicant.
Upon receipt of the completed application form and the Terms & Conditions for Maximum Demand Tariff from the applicant, we will arrange for an inspection of the electrical installation to check if a Maximum Demand Meter can be installed. The account will then be charged under Maximum Demand Tariff after the Maximum Demand Meter is installed upon satisfactory inspection.
Regular Review and Load Management
As the circumstances may change from time to time, customers should regularly review and decide whether the Maximum Demand Tariff is still beneficial for them. Based on the information (kVA and kWh values) available from the monthly electricity bills for the Maximum Demand Tariff, customers can easily compare the amount of electricity charge under the Maximum Demand Tariff with that of Non-Residential Tariff (please refer to the examples for detailed calculation). Customers are also recommended managing their electrical loads effectively so that they can maximise the benefits of the Maximum Demand Tariff for their installations.
Please contact our Enquiry Office at 2887 3455 if you have any query about the Maximum Demand Tariff.