The Westminster lensArchive · Written questions · 60 tabled · 60 answered

Written questions by Mullane.

Every parliamentary written question tabled by Margaret Mullane this session, with the full answer and department. Back to the MP page.

Department:All (60)Ministry of Housing, Communities and Local Government (17)Department for Work and Pensions (10)Treasury (6)Department for Energy Security and Net Zero (5)Home Office (5)Department of Health and Social Care (5)Department for Science, Innovation and Technology (3)Department for Culture, Media and Sport (2)Department for Education (2)Department for Environment, Food and Rural Affairs (2)Department for Transport (1)Cabinet Office (1)

Showing 15 of 5 · Department for Energy Security and Net Zero

4 Jul 2025·Department for Energy Security and Net Zero·Answered
Asked

What steps he is taking to reduce electricity costs.

Reply

Over this Parliament the government will be working relentlessly to translate the much cheaper wholesale costs of clean power into lower bills for consumers. This will be core to every decision we make.

4 Jul 2025·Department for Energy Security and Net Zero·Answered
Asked

What steps he is taking to incentivise the uptake of heat pumps.

Reply

The Boiler Upgrade Scheme (BUS) provides grants to property owners to enable them to transition away from fossil fuel to low carbon heating. The grant available under the scheme for air source heat pumps and ground source heat pumps is £7,500. Support is also available to low-income households and social housing tenants under the Energy Company Obligation, Warm Homes: Local Grant, and Warm Homes: Social Housing Fund to install low-carbon heating measures, including heat pumps. This is in addition to the 0% rate of VAT on the installation of heat pumps, which will last until March 2027.

8 Apr 2025·Department for Energy Security and Net Zero·Answered
Asked

What recent assessment he has made of the potential contribution of heat battery technology to the Government’s target for decarbonising homes by 2030.

Reply

Heat batteries are a promising low-carbon heating technology because they utilise time-of-use tariffs and do not require outside space. However, they are less efficient than heat pumps and therefore use more energy to meet the same heating demand. Although they can be charged at off-peak times, if not sized or used correctly, heat batteries could add to peak demand on the electricity network and increase bills for property owners. The Department is exploring, through studies like the Homes for Net Zero Trial, the role heat batteries could play in the future.

8 Apr 2025·Department for Energy Security and Net Zero·Answered
Asked

What assessment his Department has made of the potential contribution of heat batteries to balancing grid demand during peak energy usage periods.

Reply

Heat batteries are a promising low-carbon heating technology because they utilise time-of-use tariffs and do not require outside space. However, they are less efficient than heat pumps and therefore use more energy to meet the same heating demand. Although they can be charged at off-peak times, if not sized or used correctly, heat batteries could add to peak demand on the electricity network and increase bills for property owners. The Department is exploring, through studies like the Homes for Net Zero Trial, the role heat batteries could play in the future.

25 Feb 2025·Department for Energy Security and Net Zero·Answered
Asked

What steps his Department is taking to accelerate (a) retrofit and (b) home upgrades for social housing residents.

Reply

The Government’s Warm Homes Plan will improve the existing housing stock by tackling fuel poverty and ensuring lower energy bills for decades to come. The Autumn 2024 Budget confirmed an initial £3.4 billion for heat decarbonisation and household energy over the next three years. This includes £1.8 billion to support fuel poverty schemes, with £1.29 billion of grant funding allocated to Wave 3 of the Warm Homes: Social Housing Fund in England to support social housing providers and tenants, with delivery starting in April 2025.

Sources
SourceUK Parliament Members API
MethodQuestion and answer text as published. Question preamble (“To ask the…”) trimmed for readability; answers shown in full.