Annual Report 2019

056 Transport International Holdings Limited 2019 Annual Report Sustainability Report Care for the Environment Greenhouse Gas Emissions KMB and LWB seek to minimise their greenhouse gas emissions through the judicious application of the latest technologies and relevant measures. Total Tonnage of Greenhouse Gas Emissions The total direct greenhouse gas emissions (Scope I) and indirect greenhouse gas emissions (Scope II) 1 of KMB and LWB are around 574,800 and 17,260 tonnes of CO 2 equivalent respectively. The total carbon intensity is 135.8 tonnes CO 2 equivalent per bus. Emissions Reduction KMB and LWB adopt the latest technologies to reduce roadside emissions and maintain good air quality in bus compartments. We use Near Zero Sulphur Diesel, renew the bus fleet with the latest low-emission models and upgrade older buses by retrofitting exhaust treatment devices, battery power pack capable of delivering 200km of zero-emission bus transport; and KMB has introduced the “gBus”, the supercapacitor-powered 12-metre air-conditioned single- deck bus. The gBus is characterised by long working hours and frequent start-stop duty cycles, as the supercapacitor can be recharged more quickly and undertake many more charging/ discharging cycles. The gBus can be powered up by an overhead pantograph or a plug-type charging port in the depot. Checks on CO 2 Concentration Each year, 80 KMB buses and 15 LWB buses from passenger-intensive bus routes are selected for a data- logger measurement of indoor CO 2 concentration. Our buses generally demonstrate compliance with the requirement. Exploring Renewable Energy and Zero-emission Bus Technologies KMB and LWB strive to improve environmental performance by exploring various kinds of renewable energy and zero-emission technologies, which shows KMB and LWB’s determination to introduce green public transport in Hong Kong. KMB introduced the first in-house developed solar power system installed on a double-decker in 2017. The system reduces the air temperature in the compartment by around 8-10˚C compared to a bus without such a system. With an efficiency upgrade in 2018, the cooling time improved by 50%, saving up to 3% in terms of fuel consumption. The first batch of buses with a solar panel was deployed in October 2019; KMB and LWB are exploring the use of an electric bus (“eBus”) with a 324 KWh Lithium Iron Phosphate KMB and LWB continue to explore the possibilities of renewable energy and zero-emission bus technologies 1 The emission factors of greenhouse gas emissions due to electricity consumption are obtained from the sustainability reports of CLP Power: 0.51 kg CO2-e/kWh.