Status worldwide and in Hong Kong • Over 1.2 million NG vehicles (NGVs) in use world wide in over 40 countries including Argentina, Russia, Italy, Canada and the US. In the region Malaysia, Australia and parts of China have active NGV programmes. The majority are conversions. • All major car, truck and bus manufacturers have built dedicated prototype NGVs and many NGVs are directly available from the OEMs, though still in small numbers. • In Hong Kong CLP Power are looking into the use of NGVs. • Towngas now running a one year trial of a CNG light goods van (currently using bottled methane gas).69 Slow filling (8 hours) used. Availability • Globally distributed and substantially higher known reserves than petroleum fuels. • NG in Hong Kong currently piped from Hainan and used at CLP’s Black Point gasfired power station. CLP propose to use some of this gas for a small number of their fleet vehicles. Under the Scheme of Control Agreement with the Government the use of the gas is currently restricted to power generation. • Hong Kong also produces significant quantities of landfill gas (a mixture of methane and carbon dioxide) from its 3 strategic landfills WENT, SENT and NENT (530,000 m 3 per day currently, 1.5 million m 3 per day at peak in years 2011-2019 70) and 13 old landfill sites. Only some of the gas being used for on-site energy needs, nearly half is flared. The gas will need processing and cleaning before use in vehicles. Landfill gas utilisation schemes must obtain permission from EPD. Landfill gas is also a source of synthetic diesel (see Diesel section). • A liquified natural gas (LNG) plant in Shenzhen, China, planned for 2005 will supply Hong Kong Electric (HKE) new gas-fired power plant on Lamma Island. Towngas will likely be another user for this gas. • The extensive distribution network for Towngas 71 could be used for NG in a common carrier system in future.72 Applicability to HK • Most appropriate for heavy-duty vehicles including fleet operators, non franchised buses and delivery vehicles with own depot for overnight fuelling. Also suitable for franchised buses if filling speeds sufficiently fast. • If landfill gas is utilised, refuse transfer/collection vehicles could be converted to CNG or LNG. If a filling station near the border is established, LNG vehicles could be used for cross-border traffic, depending on range. 73 It is estimated 95% of cross border traffic operates within range of CNG/LNG fuelled vehicles.
Sam Shum, Towngas, Pers. Comm. Lawrence Lau, EPD, Pers Comm. 71 49% hydrogen, 28.5% methane, 19.5% carbon dioxide and 3% carbon monoxide. www.hkcg.com 72 .EMSD (1997) Public Consultation Report On Feasibility Study of Introducing a Common Carrier System for Gas Supply in Hong Kong. Credit Suisse First Boston (2000) China Downstream Natural Gas. Equity Research Report. 27/10/00 73 Charles Wong, CLP, Pers. Comm. 70
Published on Dec 23, 2008
Published on Dec 23, 2008
Table A1 Costs (HK$) of ULSD compared to standard diesel Diesel standard Import price ($/L) Duty ($) Retail price ($/L) Regular diesel (350p...