Question follow-through · 69418
Energy Supply: Costs
To ask the Secretary of State for Energy Security and Net Zero, what comparative estimate his Department has made of the costs of transmitting energy by (a) undersea cables and (b) pylon networks.
About this written question
A written question asks a government minister for information in writing. Parliament publishes the question and any answer.
- Answering body
- Department for Energy Security and Net Zero
- Tabled
- 21 Jul 2025
- Target answer date
- 2 Sept 2025
- Answer
- 2 Sept 2025 · 43 calendar days after tabling
Elapsed calendar days describe the record timeline, not whether Parliament considers an answer on time.
More questions by this MP on Environment and energy
- Pylons: Construction · 29 Aug 2025
- Solar Power · 10 Oct 2025
- Solar Power: Finance · 4 Nov 2025
- Solar Power: Community Development · 2 Feb 2026
Shared topic keywords suggest a connection; they do not establish a follow-up.
Votes on this topic
- Taxation (Energy and Vehicles) Bill Committee: New Clause 5 · 1 Jul 2026
- Taxation (Energy and Vehicles) Bill Committee: New Clause 4 · 1 Jul 2026
- Taxation (Energy and Vehicles) Bill Committee: New Clause 2 · 1 Jul 2026
These Commons divisions share a topic label. The question did not necessarily lead to a vote.
Recorded timeline
21 Jul 2025
Question tabled
To ask the Secretary of State for Energy Security and Net Zero, what comparative estimate his Department has made of the costs of transmitting energy by (a) undersea cables and (b) pylon networks.
2 Sept 2025
Target answer date
Date supplied by the official written-questions record.
2 Sept 2025
Answer published
The Department has not conducted its own assessment of the comparative costs of undersea cables and pylon networks. However, in April 2025, the Institution of Engineering and Technology published average lifetime cost estimates which suggest that 400kV AC...
Official data retrieved 28 Sept 2026.
Later records
Possible follow-up questions
Strong links require the same MP, department and exact heading. Other same-department questions are shown as unreviewed candidates, not as confirmed follow-ups. No debate link is asserted unless a stable source relationship exists.
Pylons: Construction
29 Aug 2025 · To ask the Secretary of State for Energy Security and Net Zero, what discussions his Department has had with the National Grid on the potential impact of the cost to the public purse for compensation for communities in relation to the erection of pylons o
Solar Power
10 Oct 2025 · To ask the Secretary of State for Energy Security and Net Zero, what his planned timetable is for publication of the solar roadmap.
Solar Power: Finance
4 Nov 2025 · To ask the Secretary of State for Energy Security and Net Zero, when he will announce Government plans for community benefit funds for solar developments following the Community Benefits and Shared Ownership for Low Carbon Infrastructure consultation whic
Solar Power: Community Development
2 Feb 2026 · To ask the Secretary of State for Energy Security and Net Zero, whether the £530,000 community compensation payment listed in the Community funds for transmission infrastructure guidance for the installation of a substation applies to substations installe