Question follow-through · 116585
Energy: Conservation
To ask the Secretary of State for Energy Security and Net Zero, whether his Department has considered reinstating voltage optimisation technologies in the Energy Saving Materials framework.
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
- 27 Feb 2026
- Target answer date
- 3 Mar 2026
- Answer
- 9 Mar 2026 · 10 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
- Energy: Housing · 2 Mar 2026
- Department for Energy Security and Net Zero: Tyres · 2 Mar 2026
- UK Emissions Trading Scheme · 3 Mar 2026
- UK Emissions Trading Scheme: Ferries · 9 Mar 2026
- Department for Energy Security and Net Zero: Contracts · 11 Mar 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
27 Feb 2026
Question tabled
To ask the Secretary of State for Energy Security and Net Zero, whether his Department has considered reinstating voltage optimisation technologies in the Energy Saving Materials framework.
3 Mar 2026
Target answer date
Date supplied by the official written-questions record.
9 Mar 2026
Answer published
DESNZ has not considered reinstating voltage optimisation technologies in the Energy Saving Materials framework due to limitations in the performance of the technology. Voltage optimisers work by reducing the voltage to close to the lower permitted limit ...
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.
Energy: Housing
2 Mar 2026 · To ask the Secretary of State for Energy Security and Net Zero, what assessment his Department has made of the impact of voltage reduction technologies installed in homes on household energy bills.
Department for Energy Security and Net Zero: Tyres
2 Mar 2026 · To ask the Secretary of State for Energy Security and Net Zero, pursuant to the Answer of 2 March 2026 to Question 114111, whether he has made an assessment of the potential merits of centrally collecting data on the procurement of retread and single-use
UK Emissions Trading Scheme
3 Mar 2026 · To ask the Secretary of State for Energy Security and Net Zero, pursuant to the Answer of 2 March 2026 to Question 115442, what his evidential basis is that linking the UK Emissions Trading Scheme with the EU Emissions Trading Scheme will minimise adminis
UK Emissions Trading Scheme: Ferries
9 Mar 2026 · To ask the Secretary of State for Energy Security and Net Zero, pursuant to the Answer of 18 February 2026 to Question 112225, whether he has made an estimate of the level of passthrough to consumers as a (a) cost increase per passenger ticket and (b) per
Department for Energy Security and Net Zero: Contracts
11 Mar 2026 · To ask the Secretary of State for Energy Security and Net Zero, a) what services were provided under contract PS24098 awarded to Guidehouse Europe Limited titled “Consulting service for internal assurance of existing sustainability assurance arrangement”;
Drax Power Station: Employment Tribunals Service
13 Mar 2026 · To ask the Secretary of State for Energy Security and Net Zero, whether his Department is reviewing documents released to the media in March 2025 in relation to the employment tribunal involving the Drax whistleblower; and whether any findings from that m
UK Emissions Trading Scheme: Ferries
18 Mar 2026 · To ask the Secretary of State for Energy Security and Net Zero, what assessment he has made of the potential impact of UK ETS compliance costs on ferry fares for passengers and businesses, particularly those in the hospitality sector using the Isle of Wig
Electricity: Prices
19 Mar 2026 · To ask the Secretary of State for Energy Security and Net Zero, what assessment he has made of the potential impact of current electricity costs on the rate of electric vehicle uptake; and what assessment he has made of the effect of electricity pricing m
Fossil Fuels
23 Mar 2026 · To ask the Secretary of State for Energy Security and Net Zero, whether his Department has considered implementing the measures suggested by the International Energy Agency following the global oil and gas supply issues resulting from Iranian efforts to i
Energy: Housing
10 Apr 2026 · To ask the Secretary of State for Energy Security and Net Zero, pursuant to the Answer of 10 March 2026 to Question 116783, on Energy: Housing, what assessment his Department has made of the aggregate impact on total household energy consumption of voltag
UK Emissions Trading Scheme: Ferries
13 Apr 2026 · To ask the Secretary of State for Energy Security and Net Zero, pursuant to the Answer of 12 March 2026 to Question 118924, what estimate his Department has made of (a) the proportion of UK Emissions Trading Scheme costs in the maritime sector expected to
Drax Power Station
14 May 2026 · To ask the Secretary of State for Energy Security and Net Zero, whether Ofgem has reviewed the Employment Tribunal case involving the Drax whistleblower; and whether Ofgem has assessed whether any matters raised in that case have implications for Drax’s c