Half Yearly Report

The following regulated information, disseminated pursuant to DTR 6.3.5, comprises the Half-Yearly Financial Report of Northern Powergrid (Yorkshire) plc for the six months ended 30 June 2015.

Pursuant to LR 14.3.6, the document has been submitted to the National Storage Mechanism and will shortly be available for inspection at:

www.hemscott.com/nsm.do

The Half-Yearly Financial Report for the six months ended 30 June 2015 is also available on the website

www.northernpowergrid.com

Enquiries:

John Elliott 0191 223 5103

NORTHERN POWERGRID (YORKSHIRE) plc

HALF-YEARLY FINANCIAL REPORT

SIX MONTHS ENDED 30 JUNE 2015

Cautionary Statement

This interim management report has been prepared solely to provide additional information to shareholders to assess the business and strategies of Northern Powergrid (Yorkshire) plc (the "Company") and the potential for those strategies to succeed and should not be relied on by any other party or for any other purpose.

Review of the six months to 30 June 2015

The Company is part of the Northern Powergrid Holdings Company group of companies (the "Northern Powergrid Group") and its principal activity during the six months to 30 June 2015 was to act as an authorised distributor under the Electricity Act 1989. The Company distributes electricity to approximately 2.3 million customers connected to its electricity distribution network within its distribution services area.

Financial strength

Results for the six months ended 30 June 2015

The half-yearly accounts for the six months ended 30 June 2015 are prepared under International Financial Reporting Standards. The half-yearly accounts do not comprise statutory accounts required to be delivered to the Registrar of Companies under the Companies Act 2006 and have not been subject to audit or review by the Company's auditor. The Company will deliver its statutory accounts for the current financial year ending on 31 December 2015 to the Registrar of Companies by 30 June 2016.

The Company delivered a satisfactory performance for the six months ended 30 June 2015, mainly due to increased revenue as a result of the five-year profile of allowed revenues inherent in the price control formula under the Distribution Price Control 5 period to 31 March 2015 ("DPCR5") partially offset by lower tariffs from 1 April 2015 as the next price control period, known as ED1, began. A summary of the key financial results is set out below:

Key financials

Revenue

Revenue at £218.1 million was £5.0 million higher than for the six months ended 30 June 2014 mainly due to higher distribution tariffs under DPCR5 to 31 March 2015, partially offset by reduced tariffs from 1 April 2015 under ED1.

Financial strength (continued)

Key financials (continued)

Cash flow

Cash and cash equivalents as at 30 June 2015 were £86.3 million, representing an increase of £86.3 million when compared with the position at 31 December 2014. On 1 April 2015, the Company issued £150 million 2.5% bonds due 2025.

The Company has access to £75 million under a five-year committed revolving credit facility provided by Lloyds Bank plc, Royal Bank of Scotland plc and Abbey National Treasury Services plc. This revolving credit facility was restated and amended with effect from 30 April 2015 and is now due to expire on 30 April 2020.

In addition, the Company has access to short-term borrowing facilities provided by Yorkshire Electricity Group plc, a related party, and to a £19 million overdraft facility provided by Lloyds Bank plc.

Financial position

Profit before tax at £91.1 million was £1.2 million lower than the six months ended 30 June 2014 mainly as a result of increased depreciation charges and other cost increases, offset by increased revenues.

Dividends

No ordinary dividends were paid in the period resulting in £72.3 million being transferred to reserves. On 17 July 2015, the board approved an interim dividend of £27.6 million, which was paid on 20 July 2015.

Related party transactions

Details of the related party transactions entered into by the Company and changes therein are included in Note 8 to this half-yearly financial report.

Customer service

The Company's key customer service performance indicators are customer interruptions ("CI") and customer minutes lost ("CML") and, for the regulatory year to 31 March 2015 (the "Regulatory Year"), both indicators were better than Ofgem's targets. As at the date of this half-yearly financial report, the Company's reported performance for the Regulatory Year is as follows:

Customer service (continued)

In June 2015 Ofgem issued its view on the impact of certain events that occurred in the regulatory year to 31 March 2014 on the Company's CML and CI performance for that year, which is reflected in the above table.

Under the Broad Measure of Customer Satisfaction, an independent market research company carries out telephone surveys with the Company's customers to find out how satisfied they were with the services provided. Those surveys are of a number of customers who contacted the Company regarding an unplanned or a planned power cut, requested a price quotation and a subsequent connection or had a general enquiry where a service had been provided or a job completed. The Company recorded an overall satisfaction score of 82.6% for the Regulatory Year and expects that the range of initiatives in its customer service improvement plan will improve the services provided to customers and so increase the satisfaction ratings year-on-year.

In that respect, customer satisfaction with the Company's response to unplanned high voltage power cuts showed some gradual improvement in the first half of 2015 and the focus remains on improving restoration times and providing more timely and accurate information to customers. Customer satisfaction with planned power cuts also showed some encouraging improvement with the Company introducing a text and email service to remind customers three days ahead of the power cut taking place.

Operational excellence

During the six months to 30 June 2015, the Company continued to implement its approved network investment strategy in order to deliver improvements in an efficient and cost-effective manner and to enhance the network's resilience. That investment included the refurbishment, replacement and construction of assets such as substations, transformers, switchgear and overhead and underground cables so that the number of power cuts that occur and number of customers affected by those power cuts are minimised as far as possible.

The Company invested £158.7 million in the distribution network during the six months to 30 June 2015, an increase on the £114.6 million recorded in the six months to 30 June 2014, and completed all outputs committed within the DPCR5 period by the price control end date of 31 March 2015. A new guaranteed standard for the restoration of supply within 12 hours of a power cut occurring came into effect from 1 April 2015 and the Company's initial performance in that respect has been encouraging, with its new operational structure providing a more localised focus and, therefore, improved response times in the event of a power cut.

Employee commitment - Health and safety

The safety of its employees continued to be of paramount importance to the Company, with the on-going focus being on the goal that no employees should be injured during their working time. During the six months to 30 June 2015, the Company experienced two lost time accidents (six months to 30 June 2014: 3) against an annual target of one and incurred six preventable vehicle accidents (six months to 30 June 2014: 9) against an annual target of 13. While the Company's performance in respect of lost time accidents after six months was disappointingly over the annual target, performance in respect of preventable vehicle accidents was slightly ahead of pro-rata target. In addition, none of the incidents resulted in serious injuries to the employees concerned.

Regulatory integrity

On 2 March 2015 the Company sought permission from the Competition and Markets Authority (the "CMA") to appeal against the licence modifications that give effect to the ED1 price control. The appeal relates to three specific areas:

(i) Ofgem's decision to demand further cost savings in relation to smart grid technology over and above the ones captured by its original benchmarking exercise;

(ii) Ofgem's assessment of the variation in wage rates across the country; and

(iii) Ofgem's projections for labour cost increases.

On 30 March 2015 the CMA granted the Company permission to appeal and, between April and June 2015, the Company made submissions to the CMA in support of the appeal. The Company's appeal is expected to conclude in the fourth quarter of 2015 in accordance with the timetable required of the CMA. British Gas Trading Limited was also granted permission to appeal the price control, with the same review timetable. The outcome of these appeals may increase or reduce the revenue available to the Company, if the CMA amends the price control determination.

Principal risks and uncertainties

Regulatory risk

During the term of the price control, the rate of inflation, as measured by the Retail Prices Index ("RPI"), is taken into account in setting the Company's allowed income in respect of each regulatory year. Consequently, one of the risks faced by the Company is that its costs may increase by more than RPI. Any changes in costs incurred will have a direct impact on the Company's financial results, as will changes in performance under incentive schemes, such as in customer service, which can lead to adjustments to allowed revenues.

Ofgem's final determination in respect of ED1 set out allowed revenues and rules, by which Ofgem expects to adjust the Company's revenues in certain circumstances during ED1, and, excluding the effects of incentive schemes and any deferred revenues from DPCR5, the Company's base allowed revenue will decrease by approximately 16% in the regulatory year to 31 March 2016 before the addition of inflation, as measured by RPI, in order to derive the final price change.

Principal risks and uncertainties (continued)

Regulatory risk (continued)

Under the ED1 price control effective from 1 April 2015, Ofgem intends to:

- derive and update the allowed cost of debt by reference to a long-run trailing average based on external benchmarks of utility debt costs;

- lengthen the period over which new regulatory assets are depreciated, from the current 20 years to 45 years, with the change being phased over eight years;

- adjust revenues during ED1, rather than at the next price control review, to partially reflect cost variances relative to cost allowances;

- adjust revenues in relation to some new service standard incentives, principally relating to the speed of and service standards for new connections to the network; and

- undertake a mid-period review and adjust revenues in the latter half of ED1 for any changes in the outputs required of licensees for certain specified reasons.

Many other aspects of the DPCR5 price control remain in place (either in their DPCR5 or a similar form), including adjustments to revenues in relation to the number and duration of supply interruptions and customer service standards.

Financial risk

The Company's appeal to the CMA and the principal risks associated with the regulatory environment, within which the Company operates, are mentioned above.

The Company addresses interest rate risk by a policy of having a stable, low cost of financing over time, whilst observing approved risk parameters. The Company finances its activities by a combination of long-term borrowings at fixed rates of interest and by having access to short-term borrowing facilities at floating rates.

As at 30 June 2015, 100% of the Company's long-term borrowings were at fixed rates and the average maturity for these borrowings was 12 years. Despite this position, the Company remains mindful of the economic climate and the associated potential impact on the cost of short-term borrowing. No material currency risks are faced by the Company and it is policy that no trading in financial instruments should be undertaken.

Further information on the principal long-term risks and uncertainties and the internal control system are included in the Company's latest annual reports and accounts for the year to 31 December 2014, which is available at www.northernpowergrid.com.

It is anticpated that these risks will continue for the remaining six months of 2015 and the Company's appeal to the CMA is expected to conclude in the fourth quarter of 2015.

Going concern

In the Company's latest annual reports and accounts for the year to 31 December 2014 the directors set out a number of factors they took into account when they considered continuing to adopt the going concern basis in preparing those annual reports and accounts. The directors confirm that no events have occurred during the six months to 30 June 2015, which alter the view expressed in the annual reports and accounts to 31 December 2014.

Future strategy and objectives

The directors intend that the Company will continue to develop its business by operating with the goal of efficiently investing in its distribution network, improving the quality of supply and service provided to customers and delivering the regulatory business plan for ED1.

Responsibility Statement

The board of directors confirm that to the best of their knowledge:

(a) the condensed set of finanical statements, which has been prepared in accordance with IAS 34, "Interim Financial Reporting", gives a true and fair view of the assets, liabilities, financial position and profit of the Company as required by DTR 4.2.4 R for the six months to 30 June 2015; and

(b) the interim management report contains a fair review of the information required by DTR 4.2.7 R (indication of important events during the first six months of the year and description of the principal risks and uncertainties for the remaining six months of the year).

By order of the board

P A Jones

Director

19 August 2015

CONDENSED STATEMENT OF PROFIT OR LOSS AND OTHER COMPREHENSIVE INCOME - SIX MONTHS ENDED 30 JUNE 2015

There is no other comprehensive income for the Company for the six months to 30 June 2015 or the comparative six month period in 2014 other than the profits reported above.

The interim financial statements were approved by the board of directors and authorised for issue on 19 August 2015 and were signed on its behalf by:

P A Jones

Director

1. GENERAL INFORMATION

The information included within these condensed financial statements for the year ended 31 December 2014 does not constitute statutory accounts as defined in section 434 of the Companies Act 2006. A copy of the statutory accounts for that year has been delivered to the Registrar of Companies. The auditor reported on those accounts and that report was unqualified, did not draw attention to any matters by way of emphasis and did not contain a statement under section 498(2) or (3) of the Companies Act 2006.

2. ACCOUNTING POLICIES

Basis of preparation

The annual financial statements of the Company are prepared in accordance with IFRSs as adopted by the European Union. The condensed set of financial statements included in this half-yearly financial report has been prepared in accordance with International Accounting Standard 34, 'Interim Financial Reporting', as adopted by the European Union.

Going concern

In the Company's latest annual reports and accounts for the year to 31 December 2014 the directors set out a number of factors they took into account when they considered continuing to adopt the going concern basis in preparing those annual reports and accounts. The directors confirm that no events have occurred during the six months to 30 June 2015, which alter the view expressed in the annual reports and accounts to 31 December 2014.

Changes in accounting policy

The Company's accounting policies and methods of computation are the same as the accounting policies which are described in the Company's financial statements for the year ended 31 December 2014. The Company has not adopted any new or revised accounting standards in the current year.

3. SEGMENTAL ANALYSIS

Revenue, profit before tax and net assets are attributable to electricity distribution. Revenue is all in respect of sales to United Kingdom customers.

Revenue represents charges made to customers for use of the distribution system, rental of meters the recharge of costs incurred on behalf of related parties, amortisation of customer contributions and other goods sold and services provided, exclusive of value added tax.

4. INCOME TAX EXPENSE

Tax for the six month period ended 30 June 2015 is charged at 20.25% (six months ended 30 June 2014: 21.50%; year ended 31 December 2014: 21.50%), which represents the best estimate of the average annual effective tax rate expected for the full year, as applied to the pre-tax income of the six month period.

The Summer Finance Bill 2015 includes a provision for a 1% reduction to the standard rate of corporation tax from April 2017 and a further 1% reduction from April 2020 but this bill will not be substantively enacted until later in 2015 and, therefore, has not impacted these condensed financial statements.

5. BANK OVERDRAFTS AND LOANS

On 1 April 2015, the Company issued £150 million 2.5% bonds due 2025.

6. NOTES TO THE CASH FLOW STATEMENT

7. FINANCIAL INSTRUMENTS

Except as detailed in the following table, the directors consider that the carrying value amounts of financial assets and financial liabilities are approximately equal to their fair values:

8. RELATED PARTY TRANSACTIONS

Transactions entered into with related parties and balances outstanding were as follows:

8. RELATED PARTY TRANSACTIONS - (CONTINUED)

Sales and purchases from related parties were made at commercial prices.

Interest on loans to/from Group companies is charged at a commercial rate.