SOUTH EASTERN POWER NETWORKS PLC

1. SOUTH EASTERN POWER NETWORKS PLC 2011-03-31 → present
2. SOUTH EASTERN POWER NETWORKS LIMITED 2011-01-24 → 2011-03-31
3. SOUTH EASTERN POWER NETWORKS PLC 2010-11-01 → 2011-01-24
4. EDF ENERGY NETWORKS (SPN) PLC 2003-06-30 → 2010-11-01
5. SEEBOARD POWER NETWORKS PLC 2001-06-06 → 2003-06-30
6. HOME GAS COMPANY LIMITED 1995-04-07 → 2001-06-06

Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers

Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.

Accounting basis

FRS 102

Reporting scope

Standalone (parent only)

Auditor

Deloitte LLP

Audit opinion

Unqualified (clean)

Going concern

Affirmed

“Given the significant amount of liquidity available to the Company at 31 March 2025, the Company's forecasts under all reasonable scenarios show that there is significant headroom in respect of available liquidity and compliance with financial covenants. Stress testing has been performed and indicates that the level of decline in the Company's financial performance to result in a financial covenant breach is considered remote. Accordingly, the Directors are satisfied it is appropriate to adopt the going concern basis of accounting in the preparation of these financial statements.”

Significant events

• “In March 2025, the Company's case regarding tax losses claimed by way of consortium relief between 2011 and 2016 from associated companies of one of the Company's shareholders was heard at the First-tier Tribunal. The decision was released in June 2025 in favour of the tax authorities.”
• “In June 2023, the UK High Court issued a ruling in the case of Virgin Media Limited v NTL Pension Trustees II Limited and others relating to the validity of certain historical pension changes. On 25 July 2024, the Court of Appeal dismissed the appeal.”

Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers

Filings

3

last 12 months

Capital events

0

last 24 months

Officers appointed

0

last 12 months

Officers resigned

0

last 12 months

Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.

• Turnover

  +39.5%

  £479,500,000 → £669,000,000

• Cash

  +64.3%

  £21,000,000 → £34,500,000

• Net assets

  +14%

  £1,337,700,000 → £1,525,500,000

• Employees

  —

  Not reported

• Operating profit

  +96.3%

  £206,500,000 → £405,300,000

• Profit before tax

  +119.4%

  £163,400,000 → £358,500,000

Each % is (latest − prior) ÷ |prior| for the line item as filed. Periods don't have to be exactly 12 months apart — a long or short period (typical around incorporation or year-end changes) will distort the comparison. Lines a company doesn't report are omitted. About these numbers