Annual Report and Accounts 2006/07 National Grid Gas Plc
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Company Number 2006000 Annual Report and Accounts 2006/07 National Grid Gas plc National Grid Gas plc Annual Report and Accounts 2006/07 Contents 1 Operating and Financial Review 35 Directors’ Report 38 Statement of Directors’ Responsibilities 39 Independent Auditors’ Report 40 Accounting Policies 45 Consolidated Income Statement 46 Consolidated Balance Sheet 47 Consolidated Statement of Recognised Income and Expense 48 Consolidated Cash Flow Statement 49 Notes to the Accounts 83 Company Accounting Policies 86 Company Balance Sheet 87 Notes to the Company Accounts 94 Definitions National Grid Gas plc Annual Report and Accounts 2006/07 1 Operating and Financial Review This Operating and Financial Review describes the main trends Businesses and segments and factors underlying our development, performance and The performances of our businesses are reported by segment, position during the year ended 31 March 2007 as well as those reflecting the management responsibilities and economic likely to affect our future development, performance and characteristics of each activity. Our principal businesses and position. It has been prepared in line with the guidance provided segments are as follows: in the Reporting Statement on the Operating and Financial Review issued by the UK Accounting Standards Board in Business Segment Description of principal activities January 2006. Gas UK Gas Owner and operator of the gas Transmission Transmission national transmission system in Content of Operating and Financial Review Great Britain and storage facilities 01 About National Grid Gas for liquefied natural gas (LNG). 03 Current and future developments Gas UK Gas The distribution of gas within 05 Objectives and strategy Distribution Distribution England as the owner and operator 09 Principal risk and uncertainties of four of the UK’s eight gas 12 Key performance indicators distribution networks. 14 Performance during the year National Grid UK Gas Metering The provision of regulated gas Metering 21 Gas Transmission metering and meter reading services in Great Britain. 23 Gas Distribution Corporate Other activities Corporate activities. 26 National Grid Metering activities 27 Other activities 27 Discontinued operations All of our businesses and activities are undertaken within Great 28 Financial position and financial management Britain. 32 Accounting policies External market environment About National Grid Gas The principal market in which we operate is the natural gas market in the UK. Principal operations The supply of natural gas in the UK is competitive in that We are a part of the National Grid group of businesses. Our consumers can contract with different suppliers to obtain the principal operations are in regulated gas networks in the UK, gas they need. Those suppliers are then responsible for and comprise the transmission and distribution of gas and the sourcing that gas from gas extractors or importers as provision of gas metering services. appropriate, as well as arranging for that gas to be delivered through physical delivery networks. History National Grid Gas originated from the restructuring of the UK These networks, including the ones we operate, are monopolies gas industry in 1986. In 2005, following the sales of four UK in their local areas as, for the majority of consumers, there are regional gas distribution networks, we adopted National Grid as no alternative methods of receiving natural gas. a single name for all our principal businesses. Natural gas delivery Key milestones Natural gas is transported through the gas national 1986 British Gas incorporated as a public limited company transmission system to regional gas distribution networks that 1997 British Gas demerged Centrica then deliver that gas to consumers on behalf of suppliers. Certain end customers, primarily large industrial users, receive 1999 Financial and restructuring programme completed leading to creation of a new parent company, BG Group, separation gas direct from the national transmission system. of the regulated Transco business from the other businesses of BG Group and the establishment of a We are the owner and operator of the gas national transmission financial ring-fence around Transco system and of four of the eight regional gas distribution 2000 Lattice Group, including Transco, demerged from BG Group networks in Great Britain. 2002 Merger of Lattice Group and National Grid to form National Grid Transco The gas distribution networks in Scotland and southern England are owned by Scotia Gas Networks, in the north of England by 2005 Sales of four UK regional gas distribution networks. Northern Gas Networks, and in Wales and the west of England 2005 National Grid adopted as our brand name, with Transco by Wales & West Utilities. renamed National Grid Gas 2 National Grid Gas plc Annual Report and Accounts 2006/07 Other markets in which we operate More information about the regulatory environment in which we We also operate in gas related markets in Great Britain which operate, and on the nature of our price controls, is provided in are directly connected to our regulated businesses described the business discussions on pages 21 to 27. above. Business drivers We participate in the competitive market for the provision of Our principal activities include the operation of highly complex LNG storage services in Great Britain. gas networks. As a consequence, there are many factors that influence the financial returns we obtain. We consider the Although there is now a competitive market for metering following to be our main business drivers: services in the UK, we do not participate in this competitive market, but are the owner of a legacy portfolio of gas meters Price controls The prices we charge for use of our gas comprising the majority of the gas meters in operation in Great transmission and distribution networks are Britain. As the competitive market for metering services determined in accordance with regulator-approved expands, this portfolio will decline as our gas meters are price controls. replaced. The negotiation of these arrangements has a significant impact on the revenues we obtain from Regulation our operations. As a result of our position in, and importance to, the UK economy, our gas transmission and distribution businesses are In addition, these arrangements include incentives subject to UK and European Union laws and regulations. that permit us to earn additional revenues based on our performance or penalise us if we do not meet agreed performance targets. Our businesses are regulated by the Office of Gas and Electricity Markets (Ofgem). Ofgem operates under the direction The period of these arrangements is significant to and governance of the Gas and Electricity Markets Authority us in that they provide stability to our operations and has established price control mechanisms that restrict the and allow us to plan ahead and invest in the amount of revenue that can be earned by regulated businesses, confidence that we will obtain financial returns. Our typically covering five-year price control periods. price controls typically cover periods of five years. Multi-year Revenues from metering services are determined We have two price controls for our gas transmission operations, contractual by contractual arrangements, which are usually arrangements one in our role as transmission owner and the other as system long-term and with ‘blue chip’ customers. operator. For gas distribution operations, we have four price Safety and Our ability to operate safely and reliably is very controls, one for each of our four regional gas distribution reliability important to us, our employees, our contractors, our networks. customers, the public and our regulators. Our financial performance is affected by our These price controls are based around incentives. We have a performance in these areas. financial incentive to invest, receiving a return on efficiently Efficiency Our objective, and that of our regulator, Ofgem, is incurred capital expenditure through it increasing our regulatory for us to deliver services as efficiently as possible. asset base, and we can gain or lose through incentive This allows us to limit price increases or to reduce prices to our customers and improve our own arrangements for our performance in managing system financial performance to the benefit of National operation, internal costs and pass-through costs. Grid’s shareholders. Capital Capital investment is a significant driver for organic The last price control period for our gas transmission operations investment growth. ended on 31 March 2007. A new price control period commenced on 1 April 2007 and is planned to last until 31 In our regulated gas networks, the prices we charge March 2012. The current price control period for our gas include an allowed return for capital investment distribution operations has been extended until 31 March 2008. determined in accordance with our price controls. The next price control period is expected to last until 31 March These provide incentives for us to enhance the 2013. quality and reach of our networks through capital improvements. Our businesses are subject to safety legislation which is Disposals Disposals can crystallise value for shareholders, enforced by the Health and Safety Executive (HSE). Our gas where we believe that the price on offer is better operations work under a permissioning regime, whereby our than the long-term return we can obtain ourselves. organisation, processes and procedures are documented in Relationships Our