Return anniversary. Hong Kong creates an ecological floating island of solar energy

July 1 is a special day for Hong Kong people - the anniversary of Hong Kong's return. On this day in 1997, Hong Kong broke away from British colonial rule and returned to China to realize autonomy. It is the beginning of "one country, two systems" in Hong Kong. Today, I wish Hong Kong people worldwide a happy anniversary

25 years have passed. This period was a period of rapid development in China. In the early years, Hong Kong provided important support for the economic development of the mainland of China. With the expansion of China's economy, Hong Kong has also received a lot of development support. A typical case is energy supply.

Today we are going to discuss the topic of energy structure. Coincidentally, in order to celebrate the 25th anniversary of Hong Kong's return to China, the Hong Kong Drainage Services Department launched a new energy pilot project to create an ecological floating island using solar power

New energy pilot projects in Hong Kong

According to a report in 《Ta Kung Pao》 of Hong Kong on June 27, in response to the goal of carbon neutrality and promoting renewable energy, the Hong Kong Drainage Services Department launched the pilot project of "flood storage pond floating solar power generation system" in Xintian, Yuen Long for the first time, and tried out " Walkable " and "flexible" solar power generation systems.

Since its operation in March this year, the three solar energy systems have produced more than 10000 kilowatt hours. The annual power generation of the three systems has reached 47000 kilowatt hours, which is equivalent to the power consumption of 14 three person families in a year, and the emission reduction effect is equivalent to 1400 trees. It can roughly meet the demand of rainwater pump room in Xintian.

Solar energy ecological floating island in Xintian, Hong Kong

An "ecological floating island" made of environmental protection materials is also set on the surface of the flood storage pond as a landscape for birds to rest. The Drainage Services Department hopes that this scheme will enable more efficient use of space and the development of renewable energy in the future.
 

"Solar stairs" and "solar trees" in Xintian

 (picture: Hong Kong 01 Community News)

In addition to the devices set on the pool surface, 92 "walking solar panels" are also paved on the pedestrian passage of the maintenance platform of the rainwater pump house; 108 "flexible solar panels" are installed on the cover of the spiral pump groove at the pump house inlet.

"Flexible solar panels" are also made into "solar trees" because of their flexible characteristics. The generated electricity can be used for mobile phone charging and can automatically light up at night.

Highly dependent on imported energy

 

Energy profile of Hong Kong in 2020

(source: Hong Kong Electrical and Mechanical Services Department)

The pilot project in the flood storage pond is just one of the new energy pilot projects of the Hong Kong Drainage Services Department. In recent years, the Hong Kong government has been actively promoting renewable energy, which is related to the policy and the reality of urban development.

As there are no energy mineral resources in Hong Kong, energy is imported. Fossil fuels and nuclear energy are the main energy sources. For example, in 2017, 78% of the coal used for power generation came from Indonesia. Fortunately, with the completion of the Daya Bay nuclear power plant, Hong Kong can directly import electricity from the mainland, and the energy cost has been alleviated.

However, in essence, Hong Kong still relies heavily on foreign energy. Therefore, the Hong Kong government actively promotes the use of renewable energy.

Assist private enterprises to install solar energy

On April 26 this year, the Hong Kong government issued a communique. The new on grid electricity price and the notice requiring the government to assist private enterprises to install solar photovoltaic systems in outdoor parking lots were disclosed.

Because the cost of Distributed Renewable Energy has decreased significantly, the renewable energy certificate has maintained the current HK $0.5 per kilowatt hour, and the feed in tariff has been adjusted from the original HK $3-5 to below.

A） The generating capacity of renewable energy system is equal to or less than 10 kW: HK $4 per kilowatt hour;

B） Power generation capacity of renewable energy system exceeding 10kW but not exceeding 200kW: HK $3 per kilowatt hour;

C） Power generation capacity of renewable energy system exceeding 200kW but not exceeding 1MW: HK $2.5 per kilowatt hour.

In addition to electricity price adjustment, according to the newly released Hong Kong climate action blueprint 2050, the government will take the lead in encouraging private owners to install renewable energy on their land and properties. Relax the restrictions on the installation of photovoltaic systems in large outdoor parking lots and non-residential ground. The environment bureau and the Development Bureau will also launch a set of incentive policies, including corporate taxation.

Early attempts at large projects

In fact, as early as 2018, the government launched an incentive policy. Allow private enterprises to sell renewable electricity to power companies at a higher price than the general electricity charge, and encourage private investment in renewable energy.

At present, the largest photovoltaic system in Hong Kong is built in Hong Kong Disneyland. Disney has installed more than 4500 solar panels on the rooftops of 14 buildings in the resort, with a total area equal to a standard football field. It is estimated that the total power generation will reach about 1.86 million kwh, which is equivalent to the power consumption of 564 families with three people in a year.
 

1038 solar panels were installed on the roof of the office building.

(source: Hong Kong Disneyland)

To be completed by the end of December 2019. The generated electricity will directly enter the public power grid. It is estimated that Hong Kong Disneyland and the solar panel contractor can jointly share the additional income of about HK $5million per year. Hong Kong Disneyland will use the proceeds to pay for project development costs, system maintenance and other environmental protection project expansion.

Deepen the proportion of new energy

From the above, the establishment of photovoltaic system is undoubtedly good for Hong Kong's energy structure. Only by solving the energy problem can Hong Kong's development be guaranteed. Of course, we should not blindly invest in photovoltaic, which is more important for most small and medium-sized private enterprises. The most important thing is to ensure the efficiency of power generation.

Therefore, it is necessary to determine the local solar radiation. For example, in the figure below, the conditions in the north of Hong Kong are better than those in the south.

Solar radiation map of Hong Kong

For this reason, we recommend this "SPDG-110M12"

M12 type battery, 12-busbar design, 12-year warranty, 25-year 84.8% performance guarantee, efficiency up to 21.20%, maximum power 555w.Double glass has higher conduction efficiency, better flame retardancy and easier cleaning. For densely populated downtown areas such as Kowloon, the roof setting also has a certain power supply effect.

Excellent environmental pressure resistance. Capable of withstanding the maximum wind pressure of 2400pa and snow pressure of 5400pa. It has many international certifications such as TUV and CE and fire prevention certificates. It can fully adapt to most natural environments and has strong wind and rain resistance. Ensure that it can be installed in high-rise buildings.

*********************************

At present, human beings are experiencing super large-scale urbanization. With the continuous reduction of the earth's resources, more and more regions will carry out energy reform and resource utilization refinement like Hong Kong. This is a compulsory course for every city. The future development will continue.

More information, more products

contact us

Tel: +86 0576-80730906

Mail: info@sunpropower.com

Website: www.sunpower com

Thank you for watching!

Disclaimer

1/ The text used in the picture and information part of the source network, infringement deleted.

2/ The text and pictures are for readers' reference only, please refer to the actual situation.