The taxpayer faces a £4bn bill if a "big six" energy company goes under

5 questions answered.

Under newly proposed plans by Ed Davey the tax payer could foot the bill if one of the big six energy companies goes bust. We answer five questions on the proposed contingency plans.

What is Ed Davey proposing?

Energy Secretary Ed Davey is proposing to intervene quickly should one of the big six companies - EDF of France, E.ON and npower of Germany and Scottish Power, owned by Iberdrola of Spain, Centrica and Scottish & Southern Electric – go bust.

The "worst case scenario" plans, outlined in an Energy Department consultation paper open for comments until March 15, could result in household bills rising by between £7 and £32 a year on average over the period, equivalent to a maximum contribution of £4bn on the basis of 25.5m households in the UK, according to The Telegraph.

The provisions would enable the Government to intervene and continue to fund any company about to go bust and control the cost passed onto the consumer and maintain market sustainability. The rest of the industry would be expected to maintain supplies should this happen.

What is the likely-hood one of the big six companies could going bust?

It is not thought to be very likely that one of these companies would go bust any time soon and their commitment to the UK is not being questioned. It is thought the government is brining in these extra precautions because it does not want to have a repeat of the banking fiasco in the energy sector.

Does the government not already have provisions in place?

It does in the form of the 2011 2011 Energy Act which has already introduced a special administration regime to provide protection for the National Grid and the electricity and gas distribution networks it operates, as well as for the rail and water industries. However, Davey feels these provisions are not robust enough to cope with the mayhem that would ensue in the market if one of the big energy providers went bust.

What has the Department of Energy said?

An Energy Department official told The Telegraph: “It is extremely unlikely that any of the large energy suppliers in the UK would become insolvent. None the less, the Government believes that it is prudent to have in place a framework that will ensure the continued operation of a major supplier until its customers can be transferred to other partners.”

What do the energy companies think about these new provisions?

EDF has said it is broadly supportive of the proposals, while others are yet to comment

Photograph: Getty Images

Heidi Vella is a features writer for Nridigital.com

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I believe only Yvette Cooper has the breadth of support to beat Jeremy Corbyn

All the recent polling suggests Andy Burnham is losing more votes than anyone else to Jeremy Corbyn, says Diana Johnson MP.

Tom Blenkinsop MP on the New Statesman website today says he is giving his second preference to Andy Burnham as he thinks that Andy has the best chance of beating Jeremy.

This is on the basis that if Yvette goes out first all her second preferences will swing behind Andy, whereas if Andy goes out first then his second preferences, due to the broad alliance he has created behind his campaign, will all or largely switch to the other male candidate, Jeremy.

Let's take a deep breath and try and think through what will be the effect of preferential voting in the Labour leadership.

First of all, it is very difficult to know how second preferences will switch. From my telephone canvassing there is some rather interesting voting going on, but I don't accept that Tom’s analysis is correct. I have certainly picked up growing support for Yvette in recent weeks.

In fact you can argue the reverse of Tom’s analysis is true – Andy has moved further away from the centre and, as a result, his pitch to those like Tom who are supporting Liz first is now narrower. As a result, Yvette is more likely to pick up those second preferences.

Stats from the Yvette For Labour team show Yvette picking up the majority of second preferences from all candidates – from the Progress wing supporting Liz to the softer left fans of Jeremy – and Andy's supporters too. Their figures show many undecideds opting for Yvette as their first preference, as well as others choosing to switch their first preference to Yvette from one of the other candidates. It's for this reason I still believe only Yvette has the breadth of support to beat Jeremy and then to go on to win in 2020.

It's interesting that Andy has not been willing to make it clear that second preferences should go to Yvette or Liz. Yvette has been very clear that she would encourage second preferences to be for Andy or Liz.

Having watched Andy on Sky's Murnaghan show this morning, he categorically states that Labour will not get beyond first base with the electorate at a general election if we are not economically credible and that fundamentally Jeremy's economic plans do not add up. So, I am unsure why Andy is so unwilling to be clear on second preferences.

All the recent polling suggests Andy is losing more votes than anyone else to Jeremy. He trails fourth in London – where a huge proportion of our electorate is based.

So I would urge Tom to reflect more widely on who is best placed to provide the strongest opposition to the Tories, appeal to the widest group of voters and reach out to the communities we need to win back. I believe that this has to be Yvette.

The Newsnight focus group a few days ago showed that Yvette is best placed to win back those former Labour voters we will need in 2020.

Labour will pay a massive price if we ignore this.

Diana Johnson is the Labour MP for Hull North.