Asked by: James McMurdock (Independent - South Basildon and East Thurrock)
Question to the Department for Energy Security & Net Zero:
To ask the Secretary of State for Energy Security and Net Zero, what assessment he has made of the compatibility of his Clean Power 2030 target with current grid capacity constraints.
Answered by Michael Shanks - Minister of State (Department for Energy Security and Net Zero)
The Clean Power Action Plan set out the actions needed to deliver the Clean Power target, including the generation assets required and the network projects needed to transport homegrown power to homes and business across the country. This was based on advice from the National Energy System Operator that is informed by its analysis of current and expected future grid capacity constraints.
Asked by: Dan Norris (Independent - North East Somerset and Hanham)
Question to the Department for Energy Security & Net Zero:
To ask the Secretary of State for Energy Security and Net Zero, what assessment has the department made of the potential impact of the government’s Warm Homes Plan on levels of fuel poverty in North East Somerset and Hanham.
Answered by Martin McCluskey - Parliamentary Under Secretary of State (Department for Energy Security and Net Zero)
DESNZ’s annual sub-regional fuel poverty statistics estimate the rates of fuel poverty in constituencies within England, and will therefore reflect the impacts of the Warm Homes Plan in time.
The Department will publish monitoring statistics and evaluation of policies announced in the Warm Homes Plan. DESNZ currently publishes statistics covering the uptake and impacts of energy efficiency measures here.
Asked by: James McMurdock (Independent - South Basildon and East Thurrock)
Question to the Department for Energy Security & Net Zero:
To ask the Secretary of State for Energy Security and Net Zero, what recent estimate his Department has made of the proportion of curtailment costs borne by domestic consumers.
Answered by Michael Shanks - Minister of State (Department for Energy Security and Net Zero)
Data relating to curtailment caused by constraints including costs is provided in the National Energy System Operator (NESO) Annual Balancing Report at this link: neso.energy/document/362561/download. Constraint costs, as with other interventions taken by NESO to balance the electricity system, are recovered from consumers through Balancing Service Use of System Charges. Both domestic and non-domestic consumers pay these balancing costs, in proportion to their energy consumption. Although the most energy intensive industries receive additional support with these costs.
The current extent of grid constraints reflects years of underinvestment, with new network infrastructure development having lagged the expansion of new generation. We are already taking action to reduce constraints with the biggest upgrade to Great Britain’s electricity network in decades.
Asked by: Connor Naismith (Labour - Crewe and Nantwich)
Question to the Department for Energy Security & Net Zero:
To ask the Secretary of State for Energy Security and Net Zero, what assessment his Department has made of the potential impact of introducing zonal electricity pricing on (a) consumer energy bills in regions with high renewable generation, such as those with significant offshore wind capacity, (b) the cost to the public purse of constraint payments to wind generators and (c) future private-sector investment in energy infrastructure in areas of high demand, including the South East.
Answered by Michael Shanks - Minister of State (Department for Energy Security and Net Zero)
In July 2025, we announced that we would not be implementing zonal pricing as part of the Review of Electricity Market Arrangements (REMA) and had decided instead to retain a single Great Britain wide wholesale electricity market. We plan to set out the potential impact of zonal pricing − with respect to areas such as consumers, generators and investment, including South East England – in the REMA Cost Benefit Analysis (CBA), which will be published later this year.
Asked by: James McMurdock (Independent - South Basildon and East Thurrock)
Question to the Department for Energy Security & Net Zero:
To ask the Secretary of State for Energy Security and Net Zero, how often gas-fired power stations were used to replace curtailed renewable generation in 2025.
Answered by Michael Shanks - Minister of State (Department for Energy Security and Net Zero)
The Department does not hold the requested information. It is owned by NESO and published on the Elexon data portal.
Asked by: James McMurdock (Independent - South Basildon and East Thurrock)
Question to the Department for Energy Security & Net Zero:
To ask the Secretary of State for Energy Security and Net Zero, what assessment he has made of whether curtailment payments create incentives to locate generation in areas with insufficient grid capacity.
Answered by Michael Shanks - Minister of State (Department for Energy Security and Net Zero)
The revenue that generators can make from curtailment payments is regulated by Ofgem through the Transmission Constraint Licence Condition. This regulation limits the revenue generators can make from being curtailed to the value of the revenue lost through not being able to generate plus reasonable costs. Ofgem can and does take enforcement action against generators that it believes are not complying with this regulation.
The Strategic Spatial Energy Plan (SSEP) will optimise the siting of new sources of electricity generation across Great Britain. The Government’s Reformed National Pricing programme will have the SSEP at its heart, and reforms will be designed to ensure incentives for generation projects encourage siting and investment in areas that align with the SSEP.
Asked by: James McMurdock (Independent - South Basildon and East Thurrock)
Question to the Department for Energy Security & Net Zero:
To ask the Secretary of State for Energy Security and Net Zero, what lessons his Department has learnt from other countries that have reduced curtailment while expanding renewables.
Answered by Michael Shanks - Minister of State (Department for Energy Security and Net Zero)
We use evidence from comparable countries to support our decision making and policy thinking on curtailment. Constraint payments are a natural part of operating an electricity system and are used in many countries such as Italy, Spain, Germany and Denmark. However, the current extent of grid constraints reflects years of underinvestment, with new network infrastructure development having lagged the expansion of new generation. We’re finally changing that, with the biggest upgrade to Great Britain’s electricity network in decades, which will minimise both curtailment and constraint costs, and help deliver clean power by 2030.
Asked by: James McMurdock (Independent - South Basildon and East Thurrock)
Question to the Department for Energy Security & Net Zero:
To ask the Secretary of State for Energy Security and Net Zero, what recent assessment he has made of the role of battery storage in reducing renewable curtailment.
Answered by Michael Shanks - Minister of State (Department for Energy Security and Net Zero)
Electricity storage has an important role to play in decarbonising the power sector by helping to balance the electricity system at lower cost. Electricity storage achieves this by charging when electricity is abundant and discharging when it is scarcer, thereby mitigating the need for grid reinforcement and reducing the curtailment of renewable generation. Efficient use of storage therefore offers opportunities for reducing constraint costs. The Government, the National Energy System Operator (NESO) and the Office of Gas and Electricity Markets (Ofgem) are currently investigating options aimed at maximising the benefits of storage technologies in reducing system costs.
Asked by: Greg Smith (Conservative - Mid Buckinghamshire)
Question to the Department for Energy Security & Net Zero:
To ask the Secretary of State for Energy Security and Net Zero, pursuant to the Answer of 3 February 2026 to Question 109392, what engagement his Department undertook with ferry operators and representative bodies serving island and coastal communities in assessing the risk of traffic diversion arising from the expansion of the UK Emissions Trading Scheme to domestic maritime.
Answered by Chris McDonald - Parliamentary Under Secretary of State (Department for Energy Security and Net Zero)
The UK ETS Authority consulted extensively with the maritime sector, including ferry operators and island and coastal communities, to ensure all perspectives informed policy development.
During the consultation period, the Government provided online engagement sessions with operators and industry, as well as bespoke engagement sessions for island communities.
Asked by: Greg Smith (Conservative - Mid Buckinghamshire)
Question to the Department for Energy Security & Net Zero:
To ask the Secretary of State for Energy Security and Net Zero, pursuant to the Answer of 4 February 2026 to Question 109240, what proportion of the estimated costs of extending the UK Emissions Trading Scheme to domestic maritime are attributable to administrative compliance.
Answered by Chris McDonald - Parliamentary Under Secretary of State (Department for Energy Security and Net Zero)
The Impact Assessment estimates £201 million in additional costs over 20 years, with about £179 million, from administrative compliance and around £22 million from emissions reduction investment.
Administrative costs are initially higher because around 2,000 maritime operators enter the scheme in 2026 due to the inclusion of emissions at berth.
The emissions introduced initially are relatively small, and estimates are conservative given overlap with existing UK and EU MRV requirements. On a per operator basis, the admin burden is low. The planned expansion to international maritime is expected to bring far more emissions into scope without increasing administrative burden.