The New Gas-fired Unit L9

Lamma Unit L9 is the first gas-fired combined cycle unit in Hong Kong fuelled by liquefied natural gas (LNG).  It provides clean power by significantly reducing the air emissions - measurably less carbon dioxide and nitrogen oxides than those generated with conventional fossil fuels while sulphur dioxide and particulate emissions are almost zero.

Flue Gas Desulphurization Plant

Flue Gas Desulphurization Plant is installed to remove over 90% of sulphur dioxide in the flue gas.

Low NOx Burners

With the use of low NOx burners, concentration of NOx in the flue gas is reduced by two-third comparing with that produced by a conventional unit.

Air Monitoring Station

HEC has installed a total of six air monitoring stations in the south of Hong Kong Island and in Cheung Chau to monitor the impact of Lamma Power Station on the ambient air quality. Results obtained are considered well within the Hong Kong Air Quality Objectives.  Click here for the monitoring data.

Electrostatic Precipitators and Chimneys

Electrostatic Precipitators remove over 99% of particulates in the flue gas. The tall chimneys effectively disperse the pollutants to very low concentrations when they reach ground level.

Wind Tunnel Test Model

Wind tunnel testing ensures that ambient air quality objectives set by Environmental Protection Department are met with the usage of the proposed new units. (Cheung Chau in the foreground, Lamma in the background.)

Rain and Effluent

Rainwater is collected and plant effluent is reused. The rain water and wastewater collected for reuse in 2008 was about 138,000 cubic meters.

Coal Yard Spray

Coal yard spray system uses collected wastewater to minimize fugitive dust emission.

Seawater Monitoring

A chemist taking seawater samples from around the coastline of the power station for laboratory tests.

Laboratory Analysis

A chemist using an advanced laboratory instrument to test a wastewater sample.

Solar Energy

HEC has sponsored a research project on Building Integrated Photovoltaic Panels, using photovoltaic panels as building components and at the same time generating electricity for powering the services in the building. Lamma Power Station also uses solar energy for water heating.

Wind Power

Hong Kong's first commercial-scale wind power station, Lamma Winds - a pioneer in the use of renewable energy in the territory - was commissioned on 23 February 2006. By the end of February 2009, Lamma Winds has generated more than 2.5 million kWh of green electricity, reducing over 870 tonnes of coal consumption and more than 2,100 tonnes of carbon dioxide emissions.

Cable Route

Grasscreted cable route at Lamma.

Landscaping

Landscaping at Lamma Power Station.

Foam Suppression System

The foam suppression water-spraying system at Lamma Power Station cooling water outfall.

Noise Monitoring Station

HEC has installed a total of six monitoring stations at strategic locations both inside and around the Lamma Power Station to continuously monitor the noise impact on the nearby villages.

Fly Ash Storage Silo

Fly ash is stored and then sold to cement factories.

Gypsum Storage Silo

Gypsum is also stored and then shipped to factories for making cement.

Pipe Conveyor

Pipe conveyors fully enclose the coal being transported to minimize coal dust emission.

Artificial Reef

HEC has co-sponsored a research study on the use of coal ash as artificial reefs for marine conservation.

Environment-friendly Vehicle

HEC has acquired a number of electric and hybrid vehicles.

Environmental Performance Data

Click here for the quarterly emissions data for Lamma Power Station.