01

20

14

Introducing Natural Gas引入天然氣發電 HK Electric introduced the use of natural gas as fuel to generate electricity in 2006 with the commissioning of its first gas-fired generation unit at an extension to Lamma Power Station (LPS) delivering on its commitment to a cleaner and greener future

Thanks to the advanced technology and a careful selection of gas turbine model the introduction of gas in the extension of the coal-fired LPS has enabled us to provide green power to our customers while ensuring a reliable power supply for all Since 2010 gas-fired generation contributes to about 30 of the electricity produced every year by LPS

Gas Receiving Station天然氣接收站

港燈於二零零六年開始採用天然氣作為發電的燃 透過精心挑選的燃氣輪機配合先進的燃氣聯合循

料首台燃氣發電機組於南丫發電廠的擴建部分落 環技術港燈成功在以燃煤發電為主的南丫發電廠

成啟用實現公司更清潔更環保發電的承諾 引入天然氣為客戶提供更潔淨及可靠的電力自

二零一零年起燃氣發電佔南丫發電廠每年總發電

量約百分之三十

1

Advantages of Natural Gas

Natural gas burns with less emissions than other fossil fuels and offers the best available option for cleaner and more efficient power generation To generate an equivalent amount of electricity the use of natural gas produces much less carbon dioxide and nitrogen oxides while sulphur dioxide and particulates emissions are close to zero

A 335-megawatt and another 345-megawatt gas-fired units combine a gas turbine system with a steam turbine system in the combined-cycle mode They have been used as base-load machines since 2006 and 2010 respectively increasing HK Electricrsquos gas-fired power generation to about 30 to meet the HKSAR Governmentrsquos emission reduction targets The 335-megawatt gas-fired unit commissioned in 2006 is one of the most efficient generating units in Hong Kong achieving an overall efficiency of over 55

The gas-fired unit is located at the 22-hectare extension to the south of Lamma Power Station 燃氣機組座落於佔地二十二公頃的南丫發電廠以南的擴建部分

天然氣的優點 燃燒天然氣所產生的排放物較其他化石燃料少故

此以天然氣發電將會更潔淨及更見效率若以生產

同等電力計算燃燒天然氣所產生的二氧化碳及

氮氧化物大幅減少二氧化硫和粒狀物的排放量則

近乎零有利環保

兩台容量達三百三十五兆瓦及三百四十五兆瓦的燃

氣機組均採用燃氣聯合循環技術分別於二零零六

年及二零一零年成為南丫發電廠內的基本負載機

組令公司使用天然氣發電的比例增至約百分之

三十從而達至香港特區政府訂下的減排目標於

二零零六年投產的燃氣機組是目前全港運作效率

最高的發電設施之一達到百分之五十五以上的

水平

2

Green Features

HK Electric has put in place a number of environmental initiatives for power generation and green resources are emphasised in the development of the LPS extension A solar photovoltaic system and micro wind-turbines are installed to provide energy for street lighting as well as other station facilities while the design of the L9 Main Station Building and 275kV Switching Station includes translucent cladding to introduce natural light

Ten per cent of reclamation materials for site formation came from recycled coal ash Rubble-mound seawalls on the south and the west edges of the extension enhance colonisation of marine organisms Rainwater is collected from rooftops for gardening and cleaning purposes while paving blocks are laid for transport and pedestrian access

環保措施 港燈在發電過程中採用多項環保措施南丫發電廠

的擴建部分亦著重應用綠色資源部分街燈及廠內

設施由太陽能光伏系統及風力發電提供能源而第

九號機組主廠房大樓和 275千伏開關站均採用半透

明材料設計有效利用自然光線

擴建工地所採用的填海物料中百分之十來自電廠

的煤灰工地南面和西面邊陲所建的堆石海堤成

為海洋生物棲息之所於屋頂收集得來的雨水會用

作灌溉和清潔而大部分行人路和馬路均採用預製

地磚鋪砌

3

Natural Gas Resources

HK Electric is secured of a steady supply of liquefied natural gas (LNG) through supply contracts originating from Australiarsquos North-West Shelf and Qatar The LNG is shipped to the Guangdong Dapeng LNG Receiving Terminal in Shenzhen where it will be gasified and delivered to LPS via a 92-kilometre pipeline

The pipeline buried three metres below the seabed is 20 inches in diameter It is designed to operate at a pressure between 80 to 90 bars in order to meet the eventual requirements of the Lamma extension in its fully developed state

55

The 335-megawatt gas-fired unit has an overall operation efficiency exceeding 三百三十五兆瓦燃氣機組的運作效率超過

百分之五十五的水平

Vessel carrying liquefied natural gas (LNG) from Australia運載源自澳洲的液化天然氣的船隻

天然氣機組

的氣源

港燈透過簽訂天然氣合約確保電廠享有穩定的天

然氣供應來自澳洲西北大陸架氣田及阿拉伯半島

卡塔爾的液化天然氣經由運輸船送至深圳秤頭角

的廣東大鵬液化天然氣接收站氣化後再經埋於海

床下三米全長約九十二公里的輸氣管道送至南丫

發電廠

直徑達二十吋的輸氣管道在八十至九十巴（ bar）的

操作壓力下運作足以應付南丫發電廠擴建部分將

來所有機組全面投產後的需求

4

Gas-fired Power Generation Process

The combined-cycle gas turbine (CCGT) unit synchronised in 2006 is situated at the 22-hectare extension south of the LPS where up to six units can eventually be accommodated Synergism through co-siting with the adjoining coal-fired station ensures most utilities are shared

Combustion of the gas generates power in the gas turbine A heat recovery steam generator utilises waste heat from flue gas in the gas turbine exhaust to produce steam that drives a steam turbine for secondary electricity generation An ldquoFrdquo class gas turbine with a firing temperature up to 1400˚C achieves particularly high operational efficiency

Gas-fired Power Generation Process天然氣發電流程

Electricity Generation1Gas Receiving Station天然氣接收站 2 產生電力 Natural gas from Shenzhen Combustion of gas powers the single-train is delivered here for pressure turbine-shaft which is connected to the regulation generator to produce electricity天然氣輸送至天然氣接收站 燃燒天然氣產生動力推動單軸聯合循環機組

調壓 發電

This process applies only to the combined-cycle gas turbine unit synchronised in 2006適用於二零零六年併網的燃氣聯合循環發電機組

天然氣 發電流程 shy

於二零零六年併網的燃氣聯合循環發電機組設於南

丫發電廠以南面積約二十二公頃的填海擴建部

分該擴建部分日後共可容納六台燃氣機組由於

擴建部分與原有電廠相連大部分設施可以共用

因而達至協同效益

天然氣在燃氣輪機內燃燒以產生電力燃氣輪機

排放的煙氣會被輸往餘熱鍋爐利用煙氣的餘熱產

生蒸汽推動汽輪機增加發電量該部 F級燃氣輪

機的燃燒溫度高達攝氏一千四百度使機組達至極

高的運作效率

5

The single-shaft power-train and electrical equipment are housed inside the Main Station Building while the heat recovery steam generator is separately located alongside The main power block is oriented in an east-west direction with the heat recovery steam generator and chimney towards the east

A 110-metre chimney is already operational equipped with steel flue and reinforced concrete windshield The chimney is designed to hold three steel flues A once-through cooling system whose water intake comprises stop logs bar screens drum screens and circulating water pumps is located on the eastern side of the site Its outfall is sited on the west to avoid re-circulation of the cooling water

4

3Heat Recovery Steam Generator餘熱鍋爐 Waste heat from the gas turbine produces steam to drive a steam turbine for secondary electricity generation

利用燃氣輪機廢氣的餘熱產生蒸汽用以

推動汽輪機增加發電量

Chimney煙囪 The 110m chimney is sufficiently tall to facilitate 275kV dispersion of flue gas 5煙囪的高度為一百一十米

Switching Station275千伏開關站

確保煙氣得以充分地在高空 This acts as a switching point 擴散 for transmission of electricity

to Hong Kong Island via submarine and subterranean high voltage cables

電廠所產生的電力通過275千伏

開關站經海底和地底電纜輸送

至港島

此外單軸聯合循環機組和電器設施等均設於主廠

房大樓內而餘熱鍋爐則置於主廠房大樓側主廠

大樓的佈局為東西走向餘熱鍋爐和煙囪座落於

東面

現已投入運作的煙囪高達一百一十米內有一條鋼

管煙道外加鋼筋混凝土風罩而煙囪的設計足以

容納三條鋼管煙道主廠東面設置循環水系統為

發電機組提供冷卻之用其入水系統設有閘板攔

污柵鼓形濾網及循環水泵等而排水口則設於西

面以避免冷卻水回流

6

Monitoring and Control

Dedicated staff aided by a computerised control and supervision system ensure safe and reliable operation of gas facilities including the submarine pipeline and gas receiving station A specially designed on-line monitoring device monitors natural gas composition flow pressure and temperature Gas facilities would be shut down automatically to ensure safety if gas leakage is detected

The operation of the CCGT is controlled by a comprehensive distributed control system with all operations carried out automatically Alarms would be raised in the Central Control Room in case of emergency A closed-circuit television (CCTV) system monitors the external conditions of the gas facilities and the CCGT unit

Engineers monitor and control the operation of the gas-fired combined cycle unit in the Central Control Room工程人員在中央控制室監控機組的運作

監控運作 港燈的技術人員利用電腦監控系統確保海底輸氣

管道和天然氣接收站等氣體設施的運作安全可靠

特別設計的在線監察裝置不停監察天然氣的成分

流量壓力和溫度一旦察覺氣體洩漏相關的氣

體設施將自動關閉以策安全

燃氣聯合循環發電機組的運作由全面的分散式控制

系統控制操作完全自動化一旦出現緊急事故

中央控制室的警號將會響起電廠並設有閉路電視

系統監察氣體設施和燃氣聯合循環發電機組的外

圍情況

7

Emphasis on Safety

At HK Electric safety always comes first There are 12 Natural Gas Controlled Areas in the power station where special precautionary measures are put in place for safety management At the Gas Receiving Station for example CCTV electronic locking system and gas detectors are installed for safety

A Natural Gas Safety Management System has been introduced to gear all procedures entailed in the design construction commissioning operation and maintenance of the gas facilities and the CCGT Specially devised programmes have also been implemented to promote safety awareness among employees and contractors and ensure that all personnel are fully trained in safety requirements and procedures

Employees are fully trained to promote safety awareness員工接受適切的培訓以提高安全意識

安全第一 港燈向來以安全為首要目標為確保安全港燈在

南丫發電廠設十二個天然氣管制地帶並制定了特

別預防措施以天然氣接收站為例站內裝有閉路

電視電子門鎖系統及天然氣洩漏監察器等設施

發電廠亦設立了天然氣安全管理系統全面涵蓋氣

體設施和聯合循環燃氣機組的設計興建啟用

運作和維修程序確保機組安全運作另外員工

和承辦商均接受適切的培訓課程以提高安全意識

確保所有人員均充分瞭解有關的安全規定和程序

wwwhkelectriccom 8

01

20

14

Advantages of Natural Gas

Natural gas burns with less emissions than other fossil fuels and offers the best available option for cleaner and more efficient power generation To generate an equivalent amount of electricity the use of natural gas produces much less carbon dioxide and nitrogen oxides while sulphur dioxide and particulates emissions are close to zero

A 335-megawatt and another 345-megawatt gas-fired units combine a gas turbine system with a steam turbine system in the combined-cycle mode They have been used as base-load machines since 2006 and 2010 respectively increasing HK Electricrsquos gas-fired power generation to about 30 to meet the HKSAR Governmentrsquos emission reduction targets The 335-megawatt gas-fired unit commissioned in 2006 is one of the most efficient generating units in Hong Kong achieving an overall efficiency of over 55

The gas-fired unit is located at the 22-hectare extension to the south of Lamma Power Station 燃氣機組座落於佔地二十二公頃的南丫發電廠以南的擴建部分

天然氣的優點 燃燒天然氣所產生的排放物較其他化石燃料少故

此以天然氣發電將會更潔淨及更見效率若以生產

同等電力計算燃燒天然氣所產生的二氧化碳及

氮氧化物大幅減少二氧化硫和粒狀物的排放量則

近乎零有利環保

兩台容量達三百三十五兆瓦及三百四十五兆瓦的燃

氣機組均採用燃氣聯合循環技術分別於二零零六

年及二零一零年成為南丫發電廠內的基本負載機

組令公司使用天然氣發電的比例增至約百分之

三十從而達至香港特區政府訂下的減排目標於

二零零六年投產的燃氣機組是目前全港運作效率

最高的發電設施之一達到百分之五十五以上的

水平

2

Green Features

HK Electric has put in place a number of environmental initiatives for power generation and green resources are emphasised in the development of the LPS extension A solar photovoltaic system and micro wind-turbines are installed to provide energy for street lighting as well as other station facilities while the design of the L9 Main Station Building and 275kV Switching Station includes translucent cladding to introduce natural light

Ten per cent of reclamation materials for site formation came from recycled coal ash Rubble-mound seawalls on the south and the west edges of the extension enhance colonisation of marine organisms Rainwater is collected from rooftops for gardening and cleaning purposes while paving blocks are laid for transport and pedestrian access

環保措施 港燈在發電過程中採用多項環保措施南丫發電廠

的擴建部分亦著重應用綠色資源部分街燈及廠內

設施由太陽能光伏系統及風力發電提供能源而第

九號機組主廠房大樓和 275千伏開關站均採用半透

明材料設計有效利用自然光線

擴建工地所採用的填海物料中百分之十來自電廠

的煤灰工地南面和西面邊陲所建的堆石海堤成

為海洋生物棲息之所於屋頂收集得來的雨水會用

作灌溉和清潔而大部分行人路和馬路均採用預製

地磚鋪砌

3

Natural Gas Resources

HK Electric is secured of a steady supply of liquefied natural gas (LNG) through supply contracts originating from Australiarsquos North-West Shelf and Qatar The LNG is shipped to the Guangdong Dapeng LNG Receiving Terminal in Shenzhen where it will be gasified and delivered to LPS via a 92-kilometre pipeline

The pipeline buried three metres below the seabed is 20 inches in diameter It is designed to operate at a pressure between 80 to 90 bars in order to meet the eventual requirements of the Lamma extension in its fully developed state

55

The 335-megawatt gas-fired unit has an overall operation efficiency exceeding 三百三十五兆瓦燃氣機組的運作效率超過

百分之五十五的水平

Vessel carrying liquefied natural gas (LNG) from Australia運載源自澳洲的液化天然氣的船隻

天然氣機組

的氣源

港燈透過簽訂天然氣合約確保電廠享有穩定的天

然氣供應來自澳洲西北大陸架氣田及阿拉伯半島

卡塔爾的液化天然氣經由運輸船送至深圳秤頭角

的廣東大鵬液化天然氣接收站氣化後再經埋於海

床下三米全長約九十二公里的輸氣管道送至南丫

發電廠

直徑達二十吋的輸氣管道在八十至九十巴（ bar）的

操作壓力下運作足以應付南丫發電廠擴建部分將

來所有機組全面投產後的需求

4

Gas-fired Power Generation Process

The combined-cycle gas turbine (CCGT) unit synchronised in 2006 is situated at the 22-hectare extension south of the LPS where up to six units can eventually be accommodated Synergism through co-siting with the adjoining coal-fired station ensures most utilities are shared

Combustion of the gas generates power in the gas turbine A heat recovery steam generator utilises waste heat from flue gas in the gas turbine exhaust to produce steam that drives a steam turbine for secondary electricity generation An ldquoFrdquo class gas turbine with a firing temperature up to 1400˚C achieves particularly high operational efficiency

Gas-fired Power Generation Process天然氣發電流程

Electricity Generation1Gas Receiving Station天然氣接收站 2 產生電力 Natural gas from Shenzhen Combustion of gas powers the single-train is delivered here for pressure turbine-shaft which is connected to the regulation generator to produce electricity天然氣輸送至天然氣接收站 燃燒天然氣產生動力推動單軸聯合循環機組

調壓 發電

This process applies only to the combined-cycle gas turbine unit synchronised in 2006適用於二零零六年併網的燃氣聯合循環發電機組

天然氣 發電流程 shy

於二零零六年併網的燃氣聯合循環發電機組設於南

丫發電廠以南面積約二十二公頃的填海擴建部

分該擴建部分日後共可容納六台燃氣機組由於

擴建部分與原有電廠相連大部分設施可以共用

因而達至協同效益

天然氣在燃氣輪機內燃燒以產生電力燃氣輪機

排放的煙氣會被輸往餘熱鍋爐利用煙氣的餘熱產

生蒸汽推動汽輪機增加發電量該部 F級燃氣輪

機的燃燒溫度高達攝氏一千四百度使機組達至極

高的運作效率

5

The single-shaft power-train and electrical equipment are housed inside the Main Station Building while the heat recovery steam generator is separately located alongside The main power block is oriented in an east-west direction with the heat recovery steam generator and chimney towards the east

A 110-metre chimney is already operational equipped with steel flue and reinforced concrete windshield The chimney is designed to hold three steel flues A once-through cooling system whose water intake comprises stop logs bar screens drum screens and circulating water pumps is located on the eastern side of the site Its outfall is sited on the west to avoid re-circulation of the cooling water

4

3Heat Recovery Steam Generator餘熱鍋爐 Waste heat from the gas turbine produces steam to drive a steam turbine for secondary electricity generation

利用燃氣輪機廢氣的餘熱產生蒸汽用以

推動汽輪機增加發電量

Chimney煙囪 The 110m chimney is sufficiently tall to facilitate 275kV dispersion of flue gas 5煙囪的高度為一百一十米

Switching Station275千伏開關站

確保煙氣得以充分地在高空 This acts as a switching point 擴散 for transmission of electricity

to Hong Kong Island via submarine and subterranean high voltage cables

電廠所產生的電力通過275千伏

開關站經海底和地底電纜輸送

至港島

此外單軸聯合循環機組和電器設施等均設於主廠

房大樓內而餘熱鍋爐則置於主廠房大樓側主廠

大樓的佈局為東西走向餘熱鍋爐和煙囪座落於

東面

現已投入運作的煙囪高達一百一十米內有一條鋼

管煙道外加鋼筋混凝土風罩而煙囪的設計足以

容納三條鋼管煙道主廠東面設置循環水系統為

發電機組提供冷卻之用其入水系統設有閘板攔

污柵鼓形濾網及循環水泵等而排水口則設於西

面以避免冷卻水回流

6

Monitoring and Control

Dedicated staff aided by a computerised control and supervision system ensure safe and reliable operation of gas facilities including the submarine pipeline and gas receiving station A specially designed on-line monitoring device monitors natural gas composition flow pressure and temperature Gas facilities would be shut down automatically to ensure safety if gas leakage is detected

The operation of the CCGT is controlled by a comprehensive distributed control system with all operations carried out automatically Alarms would be raised in the Central Control Room in case of emergency A closed-circuit television (CCTV) system monitors the external conditions of the gas facilities and the CCGT unit

Engineers monitor and control the operation of the gas-fired combined cycle unit in the Central Control Room工程人員在中央控制室監控機組的運作

監控運作 港燈的技術人員利用電腦監控系統確保海底輸氣

管道和天然氣接收站等氣體設施的運作安全可靠

特別設計的在線監察裝置不停監察天然氣的成分

流量壓力和溫度一旦察覺氣體洩漏相關的氣

體設施將自動關閉以策安全

燃氣聯合循環發電機組的運作由全面的分散式控制

系統控制操作完全自動化一旦出現緊急事故

中央控制室的警號將會響起電廠並設有閉路電視

系統監察氣體設施和燃氣聯合循環發電機組的外

圍情況

7

Emphasis on Safety

At HK Electric safety always comes first There are 12 Natural Gas Controlled Areas in the power station where special precautionary measures are put in place for safety management At the Gas Receiving Station for example CCTV electronic locking system and gas detectors are installed for safety

A Natural Gas Safety Management System has been introduced to gear all procedures entailed in the design construction commissioning operation and maintenance of the gas facilities and the CCGT Specially devised programmes have also been implemented to promote safety awareness among employees and contractors and ensure that all personnel are fully trained in safety requirements and procedures

Employees are fully trained to promote safety awareness員工接受適切的培訓以提高安全意識

安全第一 港燈向來以安全為首要目標為確保安全港燈在

南丫發電廠設十二個天然氣管制地帶並制定了特

別預防措施以天然氣接收站為例站內裝有閉路

電視電子門鎖系統及天然氣洩漏監察器等設施

發電廠亦設立了天然氣安全管理系統全面涵蓋氣

體設施和聯合循環燃氣機組的設計興建啟用

運作和維修程序確保機組安全運作另外員工

和承辦商均接受適切的培訓課程以提高安全意識

確保所有人員均充分瞭解有關的安全規定和程序

wwwhkelectriccom 8

01

20

14

Green Features

HK Electric has put in place a number of environmental initiatives for power generation and green resources are emphasised in the development of the LPS extension A solar photovoltaic system and micro wind-turbines are installed to provide energy for street lighting as well as other station facilities while the design of the L9 Main Station Building and 275kV Switching Station includes translucent cladding to introduce natural light

Ten per cent of reclamation materials for site formation came from recycled coal ash Rubble-mound seawalls on the south and the west edges of the extension enhance colonisation of marine organisms Rainwater is collected from rooftops for gardening and cleaning purposes while paving blocks are laid for transport and pedestrian access

環保措施 港燈在發電過程中採用多項環保措施南丫發電廠

的擴建部分亦著重應用綠色資源部分街燈及廠內

設施由太陽能光伏系統及風力發電提供能源而第

九號機組主廠房大樓和 275千伏開關站均採用半透

明材料設計有效利用自然光線

擴建工地所採用的填海物料中百分之十來自電廠

的煤灰工地南面和西面邊陲所建的堆石海堤成

為海洋生物棲息之所於屋頂收集得來的雨水會用

作灌溉和清潔而大部分行人路和馬路均採用預製

地磚鋪砌

3

Natural Gas Resources

HK Electric is secured of a steady supply of liquefied natural gas (LNG) through supply contracts originating from Australiarsquos North-West Shelf and Qatar The LNG is shipped to the Guangdong Dapeng LNG Receiving Terminal in Shenzhen where it will be gasified and delivered to LPS via a 92-kilometre pipeline

The pipeline buried three metres below the seabed is 20 inches in diameter It is designed to operate at a pressure between 80 to 90 bars in order to meet the eventual requirements of the Lamma extension in its fully developed state

55

The 335-megawatt gas-fired unit has an overall operation efficiency exceeding 三百三十五兆瓦燃氣機組的運作效率超過

百分之五十五的水平

Vessel carrying liquefied natural gas (LNG) from Australia運載源自澳洲的液化天然氣的船隻

天然氣機組

的氣源

港燈透過簽訂天然氣合約確保電廠享有穩定的天

然氣供應來自澳洲西北大陸架氣田及阿拉伯半島

卡塔爾的液化天然氣經由運輸船送至深圳秤頭角

的廣東大鵬液化天然氣接收站氣化後再經埋於海

床下三米全長約九十二公里的輸氣管道送至南丫

發電廠

直徑達二十吋的輸氣管道在八十至九十巴（ bar）的

操作壓力下運作足以應付南丫發電廠擴建部分將

來所有機組全面投產後的需求

4

Gas-fired Power Generation Process

The combined-cycle gas turbine (CCGT) unit synchronised in 2006 is situated at the 22-hectare extension south of the LPS where up to six units can eventually be accommodated Synergism through co-siting with the adjoining coal-fired station ensures most utilities are shared

Combustion of the gas generates power in the gas turbine A heat recovery steam generator utilises waste heat from flue gas in the gas turbine exhaust to produce steam that drives a steam turbine for secondary electricity generation An ldquoFrdquo class gas turbine with a firing temperature up to 1400˚C achieves particularly high operational efficiency

Gas-fired Power Generation Process天然氣發電流程

Electricity Generation1Gas Receiving Station天然氣接收站 2 產生電力 Natural gas from Shenzhen Combustion of gas powers the single-train is delivered here for pressure turbine-shaft which is connected to the regulation generator to produce electricity天然氣輸送至天然氣接收站 燃燒天然氣產生動力推動單軸聯合循環機組

調壓 發電

This process applies only to the combined-cycle gas turbine unit synchronised in 2006適用於二零零六年併網的燃氣聯合循環發電機組

天然氣 發電流程 shy

於二零零六年併網的燃氣聯合循環發電機組設於南

丫發電廠以南面積約二十二公頃的填海擴建部

分該擴建部分日後共可容納六台燃氣機組由於

擴建部分與原有電廠相連大部分設施可以共用

因而達至協同效益

天然氣在燃氣輪機內燃燒以產生電力燃氣輪機

排放的煙氣會被輸往餘熱鍋爐利用煙氣的餘熱產

生蒸汽推動汽輪機增加發電量該部 F級燃氣輪

機的燃燒溫度高達攝氏一千四百度使機組達至極

高的運作效率

5

The single-shaft power-train and electrical equipment are housed inside the Main Station Building while the heat recovery steam generator is separately located alongside The main power block is oriented in an east-west direction with the heat recovery steam generator and chimney towards the east

A 110-metre chimney is already operational equipped with steel flue and reinforced concrete windshield The chimney is designed to hold three steel flues A once-through cooling system whose water intake comprises stop logs bar screens drum screens and circulating water pumps is located on the eastern side of the site Its outfall is sited on the west to avoid re-circulation of the cooling water

4

3Heat Recovery Steam Generator餘熱鍋爐 Waste heat from the gas turbine produces steam to drive a steam turbine for secondary electricity generation

利用燃氣輪機廢氣的餘熱產生蒸汽用以

推動汽輪機增加發電量

Chimney煙囪 The 110m chimney is sufficiently tall to facilitate 275kV dispersion of flue gas 5煙囪的高度為一百一十米

Switching Station275千伏開關站

確保煙氣得以充分地在高空 This acts as a switching point 擴散 for transmission of electricity

to Hong Kong Island via submarine and subterranean high voltage cables

電廠所產生的電力通過275千伏

開關站經海底和地底電纜輸送

至港島

此外單軸聯合循環機組和電器設施等均設於主廠

房大樓內而餘熱鍋爐則置於主廠房大樓側主廠

大樓的佈局為東西走向餘熱鍋爐和煙囪座落於

東面

現已投入運作的煙囪高達一百一十米內有一條鋼

管煙道外加鋼筋混凝土風罩而煙囪的設計足以

容納三條鋼管煙道主廠東面設置循環水系統為

發電機組提供冷卻之用其入水系統設有閘板攔

污柵鼓形濾網及循環水泵等而排水口則設於西

面以避免冷卻水回流

6

Monitoring and Control

Dedicated staff aided by a computerised control and supervision system ensure safe and reliable operation of gas facilities including the submarine pipeline and gas receiving station A specially designed on-line monitoring device monitors natural gas composition flow pressure and temperature Gas facilities would be shut down automatically to ensure safety if gas leakage is detected

The operation of the CCGT is controlled by a comprehensive distributed control system with all operations carried out automatically Alarms would be raised in the Central Control Room in case of emergency A closed-circuit television (CCTV) system monitors the external conditions of the gas facilities and the CCGT unit

Engineers monitor and control the operation of the gas-fired combined cycle unit in the Central Control Room工程人員在中央控制室監控機組的運作

監控運作 港燈的技術人員利用電腦監控系統確保海底輸氣

管道和天然氣接收站等氣體設施的運作安全可靠

特別設計的在線監察裝置不停監察天然氣的成分

流量壓力和溫度一旦察覺氣體洩漏相關的氣

體設施將自動關閉以策安全

燃氣聯合循環發電機組的運作由全面的分散式控制

系統控制操作完全自動化一旦出現緊急事故

中央控制室的警號將會響起電廠並設有閉路電視

系統監察氣體設施和燃氣聯合循環發電機組的外

圍情況

7

Emphasis on Safety

At HK Electric safety always comes first There are 12 Natural Gas Controlled Areas in the power station where special precautionary measures are put in place for safety management At the Gas Receiving Station for example CCTV electronic locking system and gas detectors are installed for safety

A Natural Gas Safety Management System has been introduced to gear all procedures entailed in the design construction commissioning operation and maintenance of the gas facilities and the CCGT Specially devised programmes have also been implemented to promote safety awareness among employees and contractors and ensure that all personnel are fully trained in safety requirements and procedures

Employees are fully trained to promote safety awareness員工接受適切的培訓以提高安全意識

安全第一 港燈向來以安全為首要目標為確保安全港燈在

南丫發電廠設十二個天然氣管制地帶並制定了特

別預防措施以天然氣接收站為例站內裝有閉路

電視電子門鎖系統及天然氣洩漏監察器等設施

發電廠亦設立了天然氣安全管理系統全面涵蓋氣

體設施和聯合循環燃氣機組的設計興建啟用

運作和維修程序確保機組安全運作另外員工

和承辦商均接受適切的培訓課程以提高安全意識

確保所有人員均充分瞭解有關的安全規定和程序

wwwhkelectriccom 8

01

20

14

Natural Gas Resources

HK Electric is secured of a steady supply of liquefied natural gas (LNG) through supply contracts originating from Australiarsquos North-West Shelf and Qatar The LNG is shipped to the Guangdong Dapeng LNG Receiving Terminal in Shenzhen where it will be gasified and delivered to LPS via a 92-kilometre pipeline

The pipeline buried three metres below the seabed is 20 inches in diameter It is designed to operate at a pressure between 80 to 90 bars in order to meet the eventual requirements of the Lamma extension in its fully developed state

55

The 335-megawatt gas-fired unit has an overall operation efficiency exceeding 三百三十五兆瓦燃氣機組的運作效率超過

百分之五十五的水平

Vessel carrying liquefied natural gas (LNG) from Australia運載源自澳洲的液化天然氣的船隻

天然氣機組

的氣源

港燈透過簽訂天然氣合約確保電廠享有穩定的天

然氣供應來自澳洲西北大陸架氣田及阿拉伯半島

卡塔爾的液化天然氣經由運輸船送至深圳秤頭角

的廣東大鵬液化天然氣接收站氣化後再經埋於海

床下三米全長約九十二公里的輸氣管道送至南丫

發電廠

直徑達二十吋的輸氣管道在八十至九十巴（ bar）的

操作壓力下運作足以應付南丫發電廠擴建部分將

來所有機組全面投產後的需求

4

Gas-fired Power Generation Process

The combined-cycle gas turbine (CCGT) unit synchronised in 2006 is situated at the 22-hectare extension south of the LPS where up to six units can eventually be accommodated Synergism through co-siting with the adjoining coal-fired station ensures most utilities are shared

Combustion of the gas generates power in the gas turbine A heat recovery steam generator utilises waste heat from flue gas in the gas turbine exhaust to produce steam that drives a steam turbine for secondary electricity generation An ldquoFrdquo class gas turbine with a firing temperature up to 1400˚C achieves particularly high operational efficiency

Gas-fired Power Generation Process天然氣發電流程

Electricity Generation1Gas Receiving Station天然氣接收站 2 產生電力 Natural gas from Shenzhen Combustion of gas powers the single-train is delivered here for pressure turbine-shaft which is connected to the regulation generator to produce electricity天然氣輸送至天然氣接收站 燃燒天然氣產生動力推動單軸聯合循環機組

調壓 發電

This process applies only to the combined-cycle gas turbine unit synchronised in 2006適用於二零零六年併網的燃氣聯合循環發電機組

天然氣 發電流程 shy

於二零零六年併網的燃氣聯合循環發電機組設於南

丫發電廠以南面積約二十二公頃的填海擴建部

分該擴建部分日後共可容納六台燃氣機組由於

擴建部分與原有電廠相連大部分設施可以共用

因而達至協同效益

天然氣在燃氣輪機內燃燒以產生電力燃氣輪機

排放的煙氣會被輸往餘熱鍋爐利用煙氣的餘熱產

生蒸汽推動汽輪機增加發電量該部 F級燃氣輪

機的燃燒溫度高達攝氏一千四百度使機組達至極

高的運作效率

5

The single-shaft power-train and electrical equipment are housed inside the Main Station Building while the heat recovery steam generator is separately located alongside The main power block is oriented in an east-west direction with the heat recovery steam generator and chimney towards the east

A 110-metre chimney is already operational equipped with steel flue and reinforced concrete windshield The chimney is designed to hold three steel flues A once-through cooling system whose water intake comprises stop logs bar screens drum screens and circulating water pumps is located on the eastern side of the site Its outfall is sited on the west to avoid re-circulation of the cooling water

4

3Heat Recovery Steam Generator餘熱鍋爐 Waste heat from the gas turbine produces steam to drive a steam turbine for secondary electricity generation

利用燃氣輪機廢氣的餘熱產生蒸汽用以

推動汽輪機增加發電量

Chimney煙囪 The 110m chimney is sufficiently tall to facilitate 275kV dispersion of flue gas 5煙囪的高度為一百一十米

Switching Station275千伏開關站

確保煙氣得以充分地在高空 This acts as a switching point 擴散 for transmission of electricity

to Hong Kong Island via submarine and subterranean high voltage cables

電廠所產生的電力通過275千伏

開關站經海底和地底電纜輸送

至港島

此外單軸聯合循環機組和電器設施等均設於主廠

房大樓內而餘熱鍋爐則置於主廠房大樓側主廠

大樓的佈局為東西走向餘熱鍋爐和煙囪座落於

東面

現已投入運作的煙囪高達一百一十米內有一條鋼

管煙道外加鋼筋混凝土風罩而煙囪的設計足以

容納三條鋼管煙道主廠東面設置循環水系統為

發電機組提供冷卻之用其入水系統設有閘板攔

污柵鼓形濾網及循環水泵等而排水口則設於西

面以避免冷卻水回流

6

Monitoring and Control

Dedicated staff aided by a computerised control and supervision system ensure safe and reliable operation of gas facilities including the submarine pipeline and gas receiving station A specially designed on-line monitoring device monitors natural gas composition flow pressure and temperature Gas facilities would be shut down automatically to ensure safety if gas leakage is detected

The operation of the CCGT is controlled by a comprehensive distributed control system with all operations carried out automatically Alarms would be raised in the Central Control Room in case of emergency A closed-circuit television (CCTV) system monitors the external conditions of the gas facilities and the CCGT unit

Engineers monitor and control the operation of the gas-fired combined cycle unit in the Central Control Room工程人員在中央控制室監控機組的運作

監控運作 港燈的技術人員利用電腦監控系統確保海底輸氣

管道和天然氣接收站等氣體設施的運作安全可靠

特別設計的在線監察裝置不停監察天然氣的成分

流量壓力和溫度一旦察覺氣體洩漏相關的氣

體設施將自動關閉以策安全

燃氣聯合循環發電機組的運作由全面的分散式控制

系統控制操作完全自動化一旦出現緊急事故

中央控制室的警號將會響起電廠並設有閉路電視

系統監察氣體設施和燃氣聯合循環發電機組的外

圍情況

7

Emphasis on Safety

At HK Electric safety always comes first There are 12 Natural Gas Controlled Areas in the power station where special precautionary measures are put in place for safety management At the Gas Receiving Station for example CCTV electronic locking system and gas detectors are installed for safety

A Natural Gas Safety Management System has been introduced to gear all procedures entailed in the design construction commissioning operation and maintenance of the gas facilities and the CCGT Specially devised programmes have also been implemented to promote safety awareness among employees and contractors and ensure that all personnel are fully trained in safety requirements and procedures

Employees are fully trained to promote safety awareness員工接受適切的培訓以提高安全意識

安全第一 港燈向來以安全為首要目標為確保安全港燈在

南丫發電廠設十二個天然氣管制地帶並制定了特

別預防措施以天然氣接收站為例站內裝有閉路

電視電子門鎖系統及天然氣洩漏監察器等設施

發電廠亦設立了天然氣安全管理系統全面涵蓋氣

體設施和聯合循環燃氣機組的設計興建啟用

運作和維修程序確保機組安全運作另外員工

和承辦商均接受適切的培訓課程以提高安全意識

確保所有人員均充分瞭解有關的安全規定和程序

wwwhkelectriccom 8

01

20

14

Gas-fired Power Generation Process

The combined-cycle gas turbine (CCGT) unit synchronised in 2006 is situated at the 22-hectare extension south of the LPS where up to six units can eventually be accommodated Synergism through co-siting with the adjoining coal-fired station ensures most utilities are shared

Combustion of the gas generates power in the gas turbine A heat recovery steam generator utilises waste heat from flue gas in the gas turbine exhaust to produce steam that drives a steam turbine for secondary electricity generation An ldquoFrdquo class gas turbine with a firing temperature up to 1400˚C achieves particularly high operational efficiency

Gas-fired Power Generation Process天然氣發電流程

Electricity Generation1Gas Receiving Station天然氣接收站 2 產生電力 Natural gas from Shenzhen Combustion of gas powers the single-train is delivered here for pressure turbine-shaft which is connected to the regulation generator to produce electricity天然氣輸送至天然氣接收站 燃燒天然氣產生動力推動單軸聯合循環機組

調壓 發電

This process applies only to the combined-cycle gas turbine unit synchronised in 2006適用於二零零六年併網的燃氣聯合循環發電機組

天然氣 發電流程 shy

於二零零六年併網的燃氣聯合循環發電機組設於南

丫發電廠以南面積約二十二公頃的填海擴建部

分該擴建部分日後共可容納六台燃氣機組由於

擴建部分與原有電廠相連大部分設施可以共用

因而達至協同效益

天然氣在燃氣輪機內燃燒以產生電力燃氣輪機

排放的煙氣會被輸往餘熱鍋爐利用煙氣的餘熱產

生蒸汽推動汽輪機增加發電量該部 F級燃氣輪

機的燃燒溫度高達攝氏一千四百度使機組達至極

高的運作效率

5

The single-shaft power-train and electrical equipment are housed inside the Main Station Building while the heat recovery steam generator is separately located alongside The main power block is oriented in an east-west direction with the heat recovery steam generator and chimney towards the east

A 110-metre chimney is already operational equipped with steel flue and reinforced concrete windshield The chimney is designed to hold three steel flues A once-through cooling system whose water intake comprises stop logs bar screens drum screens and circulating water pumps is located on the eastern side of the site Its outfall is sited on the west to avoid re-circulation of the cooling water

4

3Heat Recovery Steam Generator餘熱鍋爐 Waste heat from the gas turbine produces steam to drive a steam turbine for secondary electricity generation

利用燃氣輪機廢氣的餘熱產生蒸汽用以

推動汽輪機增加發電量

Chimney煙囪 The 110m chimney is sufficiently tall to facilitate 275kV dispersion of flue gas 5煙囪的高度為一百一十米

Switching Station275千伏開關站

確保煙氣得以充分地在高空 This acts as a switching point 擴散 for transmission of electricity

to Hong Kong Island via submarine and subterranean high voltage cables

電廠所產生的電力通過275千伏

開關站經海底和地底電纜輸送

至港島

此外單軸聯合循環機組和電器設施等均設於主廠

房大樓內而餘熱鍋爐則置於主廠房大樓側主廠

大樓的佈局為東西走向餘熱鍋爐和煙囪座落於

東面

現已投入運作的煙囪高達一百一十米內有一條鋼

管煙道外加鋼筋混凝土風罩而煙囪的設計足以

容納三條鋼管煙道主廠東面設置循環水系統為

發電機組提供冷卻之用其入水系統設有閘板攔

污柵鼓形濾網及循環水泵等而排水口則設於西

面以避免冷卻水回流

6

Monitoring and Control

Dedicated staff aided by a computerised control and supervision system ensure safe and reliable operation of gas facilities including the submarine pipeline and gas receiving station A specially designed on-line monitoring device monitors natural gas composition flow pressure and temperature Gas facilities would be shut down automatically to ensure safety if gas leakage is detected

The operation of the CCGT is controlled by a comprehensive distributed control system with all operations carried out automatically Alarms would be raised in the Central Control Room in case of emergency A closed-circuit television (CCTV) system monitors the external conditions of the gas facilities and the CCGT unit

Engineers monitor and control the operation of the gas-fired combined cycle unit in the Central Control Room工程人員在中央控制室監控機組的運作

監控運作 港燈的技術人員利用電腦監控系統確保海底輸氣

管道和天然氣接收站等氣體設施的運作安全可靠

特別設計的在線監察裝置不停監察天然氣的成分

流量壓力和溫度一旦察覺氣體洩漏相關的氣

體設施將自動關閉以策安全

燃氣聯合循環發電機組的運作由全面的分散式控制

系統控制操作完全自動化一旦出現緊急事故

中央控制室的警號將會響起電廠並設有閉路電視

系統監察氣體設施和燃氣聯合循環發電機組的外

圍情況

7

Emphasis on Safety

At HK Electric safety always comes first There are 12 Natural Gas Controlled Areas in the power station where special precautionary measures are put in place for safety management At the Gas Receiving Station for example CCTV electronic locking system and gas detectors are installed for safety

A Natural Gas Safety Management System has been introduced to gear all procedures entailed in the design construction commissioning operation and maintenance of the gas facilities and the CCGT Specially devised programmes have also been implemented to promote safety awareness among employees and contractors and ensure that all personnel are fully trained in safety requirements and procedures

Employees are fully trained to promote safety awareness員工接受適切的培訓以提高安全意識

安全第一 港燈向來以安全為首要目標為確保安全港燈在

南丫發電廠設十二個天然氣管制地帶並制定了特

別預防措施以天然氣接收站為例站內裝有閉路

電視電子門鎖系統及天然氣洩漏監察器等設施

發電廠亦設立了天然氣安全管理系統全面涵蓋氣

體設施和聯合循環燃氣機組的設計興建啟用

運作和維修程序確保機組安全運作另外員工

和承辦商均接受適切的培訓課程以提高安全意識

確保所有人員均充分瞭解有關的安全規定和程序

wwwhkelectriccom 8

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The single-shaft power-train and electrical equipment are housed inside the Main Station Building while the heat recovery steam generator is separately located alongside The main power block is oriented in an east-west direction with the heat recovery steam generator and chimney towards the east

A 110-metre chimney is already operational equipped with steel flue and reinforced concrete windshield The chimney is designed to hold three steel flues A once-through cooling system whose water intake comprises stop logs bar screens drum screens and circulating water pumps is located on the eastern side of the site Its outfall is sited on the west to avoid re-circulation of the cooling water

4

3Heat Recovery Steam Generator餘熱鍋爐 Waste heat from the gas turbine produces steam to drive a steam turbine for secondary electricity generation

利用燃氣輪機廢氣的餘熱產生蒸汽用以

推動汽輪機增加發電量

Chimney煙囪 The 110m chimney is sufficiently tall to facilitate 275kV dispersion of flue gas 5煙囪的高度為一百一十米

Switching Station275千伏開關站

確保煙氣得以充分地在高空 This acts as a switching point 擴散 for transmission of electricity

to Hong Kong Island via submarine and subterranean high voltage cables

電廠所產生的電力通過275千伏

開關站經海底和地底電纜輸送

至港島

此外單軸聯合循環機組和電器設施等均設於主廠

房大樓內而餘熱鍋爐則置於主廠房大樓側主廠

大樓的佈局為東西走向餘熱鍋爐和煙囪座落於

東面

現已投入運作的煙囪高達一百一十米內有一條鋼

管煙道外加鋼筋混凝土風罩而煙囪的設計足以

容納三條鋼管煙道主廠東面設置循環水系統為

發電機組提供冷卻之用其入水系統設有閘板攔

污柵鼓形濾網及循環水泵等而排水口則設於西

面以避免冷卻水回流

6

Monitoring and Control

Dedicated staff aided by a computerised control and supervision system ensure safe and reliable operation of gas facilities including the submarine pipeline and gas receiving station A specially designed on-line monitoring device monitors natural gas composition flow pressure and temperature Gas facilities would be shut down automatically to ensure safety if gas leakage is detected

The operation of the CCGT is controlled by a comprehensive distributed control system with all operations carried out automatically Alarms would be raised in the Central Control Room in case of emergency A closed-circuit television (CCTV) system monitors the external conditions of the gas facilities and the CCGT unit

Engineers monitor and control the operation of the gas-fired combined cycle unit in the Central Control Room工程人員在中央控制室監控機組的運作

監控運作 港燈的技術人員利用電腦監控系統確保海底輸氣

管道和天然氣接收站等氣體設施的運作安全可靠

特別設計的在線監察裝置不停監察天然氣的成分

流量壓力和溫度一旦察覺氣體洩漏相關的氣

體設施將自動關閉以策安全

燃氣聯合循環發電機組的運作由全面的分散式控制

系統控制操作完全自動化一旦出現緊急事故

中央控制室的警號將會響起電廠並設有閉路電視

系統監察氣體設施和燃氣聯合循環發電機組的外

圍情況

7

Emphasis on Safety

At HK Electric safety always comes first There are 12 Natural Gas Controlled Areas in the power station where special precautionary measures are put in place for safety management At the Gas Receiving Station for example CCTV electronic locking system and gas detectors are installed for safety

A Natural Gas Safety Management System has been introduced to gear all procedures entailed in the design construction commissioning operation and maintenance of the gas facilities and the CCGT Specially devised programmes have also been implemented to promote safety awareness among employees and contractors and ensure that all personnel are fully trained in safety requirements and procedures

Employees are fully trained to promote safety awareness員工接受適切的培訓以提高安全意識

安全第一 港燈向來以安全為首要目標為確保安全港燈在

南丫發電廠設十二個天然氣管制地帶並制定了特

別預防措施以天然氣接收站為例站內裝有閉路

電視電子門鎖系統及天然氣洩漏監察器等設施

發電廠亦設立了天然氣安全管理系統全面涵蓋氣

體設施和聯合循環燃氣機組的設計興建啟用

運作和維修程序確保機組安全運作另外員工

和承辦商均接受適切的培訓課程以提高安全意識

確保所有人員均充分瞭解有關的安全規定和程序

wwwhkelectriccom 8

01

20

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Monitoring and Control

Dedicated staff aided by a computerised control and supervision system ensure safe and reliable operation of gas facilities including the submarine pipeline and gas receiving station A specially designed on-line monitoring device monitors natural gas composition flow pressure and temperature Gas facilities would be shut down automatically to ensure safety if gas leakage is detected

The operation of the CCGT is controlled by a comprehensive distributed control system with all operations carried out automatically Alarms would be raised in the Central Control Room in case of emergency A closed-circuit television (CCTV) system monitors the external conditions of the gas facilities and the CCGT unit

Engineers monitor and control the operation of the gas-fired combined cycle unit in the Central Control Room工程人員在中央控制室監控機組的運作

監控運作 港燈的技術人員利用電腦監控系統確保海底輸氣

管道和天然氣接收站等氣體設施的運作安全可靠

特別設計的在線監察裝置不停監察天然氣的成分

流量壓力和溫度一旦察覺氣體洩漏相關的氣

體設施將自動關閉以策安全

燃氣聯合循環發電機組的運作由全面的分散式控制

系統控制操作完全自動化一旦出現緊急事故

中央控制室的警號將會響起電廠並設有閉路電視

系統監察氣體設施和燃氣聯合循環發電機組的外

圍情況

7

Emphasis on Safety

At HK Electric safety always comes first There are 12 Natural Gas Controlled Areas in the power station where special precautionary measures are put in place for safety management At the Gas Receiving Station for example CCTV electronic locking system and gas detectors are installed for safety

A Natural Gas Safety Management System has been introduced to gear all procedures entailed in the design construction commissioning operation and maintenance of the gas facilities and the CCGT Specially devised programmes have also been implemented to promote safety awareness among employees and contractors and ensure that all personnel are fully trained in safety requirements and procedures

Employees are fully trained to promote safety awareness員工接受適切的培訓以提高安全意識

安全第一 港燈向來以安全為首要目標為確保安全港燈在

南丫發電廠設十二個天然氣管制地帶並制定了特

別預防措施以天然氣接收站為例站內裝有閉路

電視電子門鎖系統及天然氣洩漏監察器等設施

發電廠亦設立了天然氣安全管理系統全面涵蓋氣

體設施和聯合循環燃氣機組的設計興建啟用

運作和維修程序確保機組安全運作另外員工

和承辦商均接受適切的培訓課程以提高安全意識

確保所有人員均充分瞭解有關的安全規定和程序

wwwhkelectriccom 8

01

20

14

Emphasis on Safety

At HK Electric safety always comes first There are 12 Natural Gas Controlled Areas in the power station where special precautionary measures are put in place for safety management At the Gas Receiving Station for example CCTV electronic locking system and gas detectors are installed for safety

A Natural Gas Safety Management System has been introduced to gear all procedures entailed in the design construction commissioning operation and maintenance of the gas facilities and the CCGT Specially devised programmes have also been implemented to promote safety awareness among employees and contractors and ensure that all personnel are fully trained in safety requirements and procedures

Employees are fully trained to promote safety awareness員工接受適切的培訓以提高安全意識

安全第一 港燈向來以安全為首要目標為確保安全港燈在

南丫發電廠設十二個天然氣管制地帶並制定了特

別預防措施以天然氣接收站為例站內裝有閉路

電視電子門鎖系統及天然氣洩漏監察器等設施

發電廠亦設立了天然氣安全管理系統全面涵蓋氣

體設施和聯合循環燃氣機組的設計興建啟用

運作和維修程序確保機組安全運作另外員工

和承辦商均接受適切的培訓課程以提高安全意識

確保所有人員均充分瞭解有關的安全規定和程序

wwwhkelectriccom 8

01

20

14