Renewable Energy

Climate change is a global challenge. Promotion of renewable energy (RE) will help reduce carbon emissions as well as improve air quality.

While Hong Kong does not have favourable conditions for large-scale commercialised RE generation, we will apply RE on a wider and larger scale in the immediate years ahead based on mature and commercially available technologies with the public sector taking the lead. We will also create the conditions to facilitate the private sector adopting RE.

Based on currently mature and commercially available technologies, our estimate is that Hong Kong has about 3-4% of realisable RE potentials arising from wind, solar and waste-to-energy (WTE) that can be exploited between now and 2030.

Here you can learn more what the Government is doing to promote RE and how you can participate in development of RE.

What is RE?

Unlike fossil fuels such as coal and oil, RE will never run out. It is abundant in the environment, and can come from the sun, wind, running water, waves, and biomass. Another important advantage is that they don't emit greenhouse gases or atmospheric pollutants during electricity generation.

Pamphlet on renewable energy (pdf file)HK RE NetInititatives under Hong Kong's Climate Change Action Plan 2030+

What the Government is Doing

The Paris Agreement has highlighted the need for wider promotion of RE. For new Government buildings, we have increased the target of RE provision in new schools and educational buildings as well as new open space and public park projects. As for existing Government buildings, we require buildings undergoing major retrofitting and/or renovation works to seek to incorporate RE technologies if and where technically and financially practicable.   We have earmarked $1 billion in total for provision of small scale RE installations at Government buildings, venues, facilities and infrastructure.

The Government is also spearheading large-scale RE projects. The largest solar farm in Hong Kong is located at the Siu Ho Wan Sewage Treatment Plant which can generate as much as 1.1 million kilowatt-hours (kWh) of electricity annually, equivalent to the annual consumption of 230 households.

More information is at:

Floating Photovoltaic Systems and Hydropower Plant

In 2017, the Government implemented two pilot floating photovoltaic systems at Shek Pik Reservoir and Plover Cove Reservoir. The two pilot systems, each of 100 kilowatt (kW) capacity, have been in operations since February 2017 and October 2017 respectively. Both systems can generate some 120,000 kWh of electricity per annum. These two pilot projects have laid a solid foundation with some useful reference data for the future implementation of large-scale floating solar farms on reservoirs in Hong Kong. The Government has also installed a hydropower generation facility at the Tuen Mun Water Treatment Works to reduce energy consumption. Further, a small-scale waste water-driven hydro turbine system has been installed as a trial project in the Stonecutters Island Sewage Treatment Works to convert sewage flow hydraulic energy to electricity.

More information on the floating photovoltaic systems is at:More information on the hydropower plant is at:


WTE is an important way of harnessing renewable energy in Hong Kong. A number of sewage treatment works make use of sewage sludge and thus biogas produced in the treatment processes for electricity and heat generation through combined heat and power systems. The energy generated can provide a significant contribution to meeting the energy demand of the sewage treatment works. Besides, T · PARK adopts advanced technology for sludge incineration with electricity generation. The Integrated Waste Management Facilities (IWMF) will also use the heat arising from incineration to generate electricity for supply to the power grid. The Organic Resources Recovery Centres will make use of biogas created during waste treatment for co-generation of electricity and heat. In a bid to harness more renewable energy and further reduce solid waste, the Government is taking forward food waste/sewage sludge co-digestion projects.

More information on T • PARK is at:

Government Buildings

New Government buildings are equipped with solar panels and some are installed with building integrated photovoltaic systems (BIPV).   For example, the Electrical and Mechanical Services Department (EMSD) provides interactive educational displays on RE at its headquarters in Kowloon Bay. Guided tours of the displays and the photovoltaic installation are conducted on Monday through Saturday. To book a tour you can call the Energy Efficiency Office of EMSD at tel no 2808 3465, or send an email to

Pamphlet on the educational displays (pdf file)

Promote Adoption of RE in the Community

To encourage the power companies to play a bigger role in promoting the development of RE, new measures have been put in place under the post-2018 Scheme of Control Agreements (SCAs) with the power companies.

Under the post-2018 SCAs, Feed-in Tariff (FiT) Scheme will be introduced to encourage the public and businesses to consider investing in RE as the power generated can be sold to the power companies at a rate higher than the normal electricity tariff rate to help recover the costs of investment in the RE systems and generation. The FiT rates to be adopted at the launch of the FiT Scheme range from $3 to $5 per kWh, depending on the generation capacity of the RE system. Details are as follows –

  1. $5 for ≤10kW;
  2. $4 for >10kW to ≤200kW; and
  3. $3 for >200kW to ≤1MW.

We will also introduce a RE Certificate Scheme under the post-2018 SCAs. RE Certificates will represent the units of electricity from local RE sources (whether such electricity is generated or purchased by the power companies). The general public and organisations can show their support for RE by purchasing RE Certificates. The revenue from selling the RE Certificates will help balance the cost of paying FiT and alleviate the tariff impact brought by the introduction of the FiT Scheme.

More information is at:

RE Information Portal

To facilitate public participation in RE development, EMSD has updated the "HK RE Net" ( to provide information on technical guidelines, grid connection arrangements, the RE Certificate system, a contractor list for installation of solar panels, and frequently asked questions. EMSD has also set up a hotline to answer enquiries about RE (tel: 6395 2930).

More information is at:
Last revision date: March 2019
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