UK Government is being urged to help people in mid Wales facing higher costs as a result of the Iran war.

In a letter to the Secretary of State for Energy and Net Zero, four Plaid Cymru MPs opposed the war on moral and humanitarian grounds, and urged UK Government to pursue “every possible avenue” to de-escalate the conflict.

They also shared concerns about the impact of war on cost of living, with essentials like petrol and heating oil costs rising.

Support already announced by UK Government is welcomed, but they fear it fails to address the “scale of the challenge facing communities in Wales”.

Wales has the oldest housing stock in the UK. Households with lower energy efficiency and higher levels of fuel poverty mean Welsh households face greater exposure to price shocks.

For that reason, Liz Saville Roberts, Ben Lake, Llinos Medi and Ann Davies urge UK Government to provide broader direct support for households and businesses when bills rise above the current Ofgem price cap, taking into account costs people face, like high standing charges, along with increasing support for those reliant on heating oil and LPG.

They also want stronger action against companies that fail to honour contracts or who exploit price spikes, including tougher windfall taxes on excess profits.

Breaking the link between electricity and gas prices to reduce bills by up to £200, supported by long-term investment in renewables to protect consumers from volatile global markets, has also been raised.

The MPs’ letter states: “We are writing to you following the sharp increase in the cost of energy for households and businesses in Wales after the outbreak of war in Iran. Not only do we oppose this war on moral and humanitarian grounds, but we are deeply concerned about the impact it will have on the cost of living for people in Wales. We urge the Government to pursue every possible avenue to de‑escalate the conflict.

“Until the war ends and supply chains stabilise, the prices of essentials such as petrol and heating oil will continue to rise. Households are facing increases of over £300 in their energy bills this summer under the Energy Price Cap, and businesses are fearful for their future as they are left increasingly exposed.

“While we welcome the support announced to date, we are concerned that it fails to address the scale of the challenge facing communities in Wales. Off‑grid households worry that the level and delivery of support will leave some without the help they need. Meanwhile, the Government’s intention to introduce targeted support for household energy bills fails to account for the additional costs faced by people in Wales.

“We therefore urge you to take steps to support people in Wales through this crisis.

“This a is an opportunity to devise a package of measures which are both fair and practical ahead of the colder autumn and winter months where energy use is higher. We stand ready to work with the Government to bring about the measures outlined above as a path forward to ensure that Welsh communities receive the support they need.”