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Notes for this page
Refers to US dollars unless specified otherwise
- <1 year
Less than 1 year
- >1 year
Greater than 1 year
Proven and probable
An entity in which the Group has an equity interest and over which it has the ability to exercise significant influence
Certified emissions reduction (carbon emissions certificate)
Carbon emissions reduction target
Cash generating unit
Consumer Price Index
Earnings before interest, tax, depreciation and amortisation
European Union allowance (carbon emissions certificate)
Financial Services Authority
- FTSE 100
Financial Times Stock Exchange 100 share index, an average of share prices in the 100 largest, most actively traded companies on the London Stock Exchange
Fair value less costs to sell
- g CO2/kWh
Grammes of carbon dioxide per kilowatt hour
Group Financial Risk Management Committee
- IAS 19
The International Accounting Standard related to Employee Benefits. These financial reporting rules include requirements related to pension accounting
- IAS 39
The International Accounting Standard related to financial instruments (recognition & measurement)
International Financial Reporting Standard
- Jointly controlled entity
A joint venture which involves the establishment of an entity to engage in economic activity, which the Group controls jointly with its fellow venturers
- Level 1
Fair value is determined using observable inputs that reflect unadjusted quoted market prices for identical assets and liabilities, for example exchange-traded commodity contracts valued using close-of-day settlement prices. The adjusted market price used for financial assets held by the Group is the current bid price
- Level 2
Fair value is determined using significant inputs that may be either directly observable inputs or unobservable inputs that are corroborated by market data, for example over-the-counter energy contracts within the active period valued using broker-quotes or third-party pricing services and foreign exchange or interest rate derivatives valued using market-based data
- Level 3
Fair value is determined using significant unobservable inputs that are not corroborated by market data and may be used with internally developed methodologies that result in management's best estimate of fair value, for example energy contracts within the inactive period valued using in-house valuation techniques
Liquefied natural gas
Comprised of Treasury gilts designated at fair value through profit or loss on initial recognition and available-for-sale financial assets. The fair values of securities are based on quoted market prices, when available. If quoted market prices are not available, fair values are estimated using observable market data
Supplementary charge associated with UK Corporation Tax
- Spark spread
The difference between the price of a unit of electricity and the cost of the gas used to generate it
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Independent Auditors' Report to
the Members of Centrica plc
We have audited the Group Financial Statements of Centrica plc for the year ended 31 December 2011 which comprise the Group Income Statement, the Group Statement of Comprehensive Income, the Group Statement of Changes in Equity, the Group Balance Sheet, the Group Cash Flow Statement and the related notes and supplementary information. The financial reporting framework that has been applied in their preparation is applicable law and International Financial Reporting Standards (IFRS) as adopted by the European Union (EU).
Respective responsibilities of Directors and Auditors
As explained more fully in the Directors' Responsibility Statement, the Directors are responsible for the preparation of the Group Financial Statements and for being satisfied that they give a true and fair view. Our responsibility is to audit and express an opinion on the Group Financial Statements in accordance with applicable law and International Standards on Auditing (UK and Ireland). Those standards require us to comply with the Auditing Practices Board's Ethical Standards for Auditors.
This report, including the opinions, has been prepared for and only for the Company's members as a body in accordance with Chapter 3 of Part 16 of the Companies Act 2006 and for no other purpose. We do not, in giving these opinions, accept or assume responsibility for any other purpose or to any other person to whom this report is shown or into whose hands it may come save where expressly agreed by our prior consent in writing.
Scope of the audit of the financial statements
An audit involves obtaining evidence about the amounts and disclosures in the Financial Statements sufficient to give reasonable assurance that the Financial Statements are free from material misstatement, whether caused by fraud or error. This includes an assessment of: whether the accounting policies are appropriate to the Group's circumstances and have been consistently applied and adequately disclosed; the reasonableness of significant accounting estimates made by the Directors; and the overall presentation of the Financial Statements. In addition, we read all the financial and non-financial information in the Annual Report and Accounts to identify material inconsistencies with the audited Financial Statements. If we become aware of any apparent material misstatements or inconsistencies we consider the implications for our report.
Opinion on financial statements
In our opinion the Group Financial Statements:
- give a true and fair view of the state of the Group's affairs as at 31 December 2011 and of its profit and cash flows for the year then ended;
- have been properly prepared in accordance with IFRS as adopted by the EU; and
- have been prepared in accordance with the requirements of the Companies Act 2006 and Article 4 of the lAS Regulation.
Opinion on other matters prescribed by the companies act 2006
In our opinion the information given in the Directors' Report for the financial year for which the Group Financial Statements are prepared is consistent with the Group Financial Statements.
Matters on which we are required to report by exception
We have nothing to report in respect of the following:
Under the Companies Act 2006 we are required to report to you if, in our opinion:
- certain disclosures of Directors' remuneration specified by law are not made; or
- we have not received all the information and explanations we require for our audit.
Under the Listing Rules we are required to review:
- the Directors' statement in relation to going concern;
- the part of the Corporate Governance Statement relating to the Company's compliance with the nine provisions of the UK Corporate Governance Code specified for our review; and
- certain elements of the report to shareholders by the Board on Directors' remuneration.
We have reported separately on the parent Company Financial Statements of Centrica plc for the year ended 31 December 2011 and on the information in the Directors' Remuneration Report that is described as having been audited.
Senior Statutory Auditor
for and on behalf of PricewaterhouseCoopers LLP
Chartered Accountants and Statutory Auditors
23 February 2012
The maintenance and integrity of the Centrica plc website is the responsibility of the directors; the work carried out by the auditors does not involve consideration of these matters and, accordingly, the auditors accept no responsibility for any changes that may have occurred to the financial statements since they were initially presented on the website or for additional material that appears alongside them such as case studies and videos. For the full audited Annual Report and Accounts and the Annual Review and Summary Financial Statements, please download the PDF documents.