Automated and Electric Vehicles Bill (Second sitting)

Iain Stewart Excerpts

Committee Debate: 2nd sitting: House of Commons
Tuesday 31st October 2017 Public Bill Committees

[Mr Hayes]

Thank you.

[Iain Stewart (Milton Keynes South) (Con)]

Q Following up on the question asked by my right hon. Friend the Member for West Dorset, I have a question about the capacity of the grid to cope with the expected increase in demand, and in particular the timing of that demand. While researching for the Second Reading debate, I came across an Atkins report that draws on findings from the Energy Technology Institute that peak demand is likely to be in the early evenings—particularly Sunday evenings—and that that could increase demand on the grid by 10 GW, or 20%, at the time when it is least able to cope. Is that a finding that you recognise?

Marcus Stewart: One of the key things that affects the impact on the grid is people charging their cars. Smart charging is absolutely key to mitigating that. I will give you some examples from the work that we have published. We published our “Future Energy Scenarios” report in July. In a high-growth scenario that aligns with the Government’s target to ban sales of diesel and petrol engines in 2040, we would expect to see around 9 million electric vehicles in 2030. That would add something like 17% to peak demand, which occurs on a Monday or Tuesday evening in the winter, if there was not smart charging. If there was smart charging and people responded to that through time of use tariffs or other incentives, that could be reduced to around 6%. How people charge and how they are incentivised to do it has a real impact.

At the moment, the technology exists—the charging posts that have been put in have that technology—and we support the measures in the Bill to ensure that all charging points have that capability, which would make a significant difference to how easily electric vehicles are accommodated by the network nationally and locally. Smart charging is absolutely key, and we support the approach in the Bill.

[Iain Stewart]

Q Are you content, given the content of the Bill, that the industry will come up with those incentives itself, or will there be a requirement for further guidance or direction?

Marcus Stewart: I believe that the industry, in terms of energy suppliers, will offer smart tariffs. We have already seen that; OVO has published a proposed smart tariff that will actually support vehicle-to-grid when that becomes available. The market is likely to respond. There are also changes in the electricity market around billing for half-hourly meter reconciliation, which will drive the supplier to optimise their portfolio and to offer similar types of tariff. The mechanisms are there to make that happen. At the moment there are only 100,000 to 120,000 electric vehicles, so there is a very small impact, but when we get to millions of cars, we need to have that smart charging capability. People in the market are seeing that opportunity already and want to participate in that. Having the framework and rules that facilitate that and mandate the technology and infrastructure will go a long way to facilitating that.

Robert Evans: I would just like to add that on the one hand I am very reassured by my colleague’s contribution, which recognises that this is a market opportunity and that we have members who are very keen to provide the charging technology and the market mechanisms that would allow a motorist to make their electric energy—their battery—available, so that they do not charge at night, but they can provide power back to the grid when it is needed and manage those smart services.

We are concerned about mandating a specific technology. There is a context around the Bill that says it will mandate a certain technology or approach. We would like to see a recognition of the need to create a market rather than have a situation where, for example, a DNO can effectively turn off charging for somebody because they feel that that is necessary under certain conditions without involving the motorist or without market mechanisms coming in in the first place. We are particularly keen that this paves the way for a market-based approach. We welcome variable tariffs and vehicle-to-grid technology and we see the storage of electric vehicles as exactly what you need in an energy system with a high element of intermittency, as we add more and more renewables. The storage element is going to be a lot more valuable and there need to be market mechanisms to unlock that, rather than a mandated approach that is purely a situation where someone can turn off as they choose to, without the motorist or business—

[The Chair]

Thank you very much. Alan Brown.