The future of Britain's electricity networks - Energy and Climate Change Contents


Examination of Witnesses (Question Numbers 180-197)

MR GORDON EDGE, MR TIM RUSSELL AND MR JASON ORMISTON

29 APRIL 2009

  Q180  Chairman: You are also saying that you felt that the framework was not yet developed to encourage renewables. Does that apply to off-shore wind as well?

  Mr Edge: We are looking forward to when the regime that is in its last throes of consultation will come into force. We have come through a long process down here. Perhaps it may be fair to say that if we had known back then what we know now, we might have asked for something a bit different, but we are where we are and we want it to be in place because it needs to be what we want to see, and certainly it is the case around one or two projects that really all we need is a radial connection to shore; that is fine; it works. Our issue is that going for the strategic approach you will need for the larger Round 3 projects and, indeed, going out in terms of interconnecting with the rest of Europe, which again I think is another supply chain issue, is going to require even more cable. We do not think that the Government is actively engaging on the super grid issue as much as it could. It is taking very much a back seat. It is, "Oh, this is a European project." The North Sea grid is one of three strategic electricity interconnection projects, but the Government seems to be taking the view that it is happening out there; it is a European project; we do not really have to get involved. No, we need the UK Government to be actively engaging on the regulatory and technical issues so that we can roll it out as swiftly as we can, because it is going to be of major benefit.

  Mr Ormiston: I think National Grid, Ofgem, most of the people in the industry and, I suspect, most politicians have really been caught out by the pace of demand, offshore and onshore, for renewables. When I came back from one of the European summits saying we have signed up to 15 per cent renewable energy by 2020, it took a few people by surprise that they would commit to that target. In other words, that commitment is really worthwhile. What it means though is that you have 35, 40 per cent renewable electricity by 2020, which is an enormous amount of capacity to get built. ENSG tried to respond to that with its Transmission Report and now, with the interest in offshore wind, wave and tidal in Scottish waters, we find the ENSG report perhaps needs a review to look at the potential of the offshore renewables. We just need to keep pace. I do not think we are keeping pace in our forward thinking, what needs to be in place to deliver that potential, but you cannot lose sight of that 2020 target. That 40 per cent carbon commitment that Alistair Darling made last week is really important and he cannot let it slip.

  Chairman: Yes, it certainly is. Can I apologise, we are trying to keep to time, but as part of that commitment to renewables and reducing carbon there has to be a range of different technologies and different transmission. That brings to us distributed generation, which, of course, is still quite small but it is developing. Paddy wants to come in on this.

  Q181  Paddy Tipping: Yes, but there are benefits from being embedded into the system. The National Grid are going to change the rules, are they not? What are your views on this?

  Mr Russell: There certainly is a worry that they are going to change the rules. There are a number of different things that there is concern about. The chief one is that at the moment, for the majority of generation that is connected to a distribution network, the output of which is absorbed by demand within that distribution network and, therefore, does not flow broadly on to the transmission network, you can effectively net-off the two charges as far as transmission charging exists. So there is a benefit by netting-off generation and demand locally, which, of course, affects the physical reality of the power not flowing onto the transmission system, and that is what is known broadly as embedded benefit. There have been noises in Ofgem that they do not think this is justified and they wish to charge generation connected to a distribution network for using the transmission network as if all the power was going onto it and, exactly the same, the demand that that is meeting would also be charged on a gross basis. There was an industry working group that met I think two and a half years ago now and, with the exception of one network company, the industry's view was absolutely unanimous that net charging is what is cost reflective, reflects the physical reality and should continue. Ofgem agreed with the single company in the industry—

  Q182  Paddy Tipping: You had better tell us which company this is.

  Mr Russell: It is NGC. —and says that that they do not think under the current arrangements where if power nets itself off on a distribution system they should pay charges as if it was flowing onto and then off the transmission mission, which of course it is not, and they have written a letter saying that NGC does have to sort this out and come up with enduring arrangements. Indeed, they are placing an obligation on NGC to bring forward proposals to do this and have them implemented not later than April 2011. So it is, unfortunately, a real threat that generators connecting to a distribution system are worried about. It is non cost reflective and, if you followed it through logically, you would actually have the nonsense of charging every single generator in France, Germany, right over to Bulgaria and every single bit of demand for using the GB transmission system rather than just charging the net flow that comes over the interconnector between France and England.

  Q183  Paddy Tipping: We are going to move to a situation where there are going to be more and more local networks. That is inevitable. What is the ideal charging system?

  Mr Russell: The ideal charging system is very simple. Firstly, quite a different issue, obviously there is generation connected to distribution systems, and that should pay appropriately for using the distribution systems, which may in some cases be negative charges if they are deferring the need to invest more in distribution systems; if they are far from demand they may be positive charges. As regards the transmission system, it is very simple: one should pay (and who one is I will come on to it in minute) for the net injection from the distribution system to the transmission system or the net off-take from the transmission system to the distribution system; so that it is the net flow that physically passes onto or off the transmission system that causes costs on the transmission system and for which charges should be payable.

  Q184  Paddy Tipping: Mr Ormiston, you reminded us earlier on that in Scotland some people are paying both system costs.

  Mr Ormiston: Correct.

  Q185  Paddy Tipping: That cannot be right, can it?

  Mr Ormiston: It is right. There are generators who theoretically, the National Grid believe will spill their electricity or put their electricity on to the transmission network and therefore have to pay what is known as the gross-net charging model, so they are paying both transmission and distribution charges. Often they also have to be grid code compliant as well and for this theoretical risk of their using the transmission they have to put in significant bits of machinery and plant to be able to grid code compliant. This tussle between National Grid and the distribution network operators is being played out in different ways. Charging models is one, DPCR-5—the Distribution Price Control Review 5—is another; and also CAP167, which is all about if there is a theoretical risk of you using the transmission network you have to get what is known as a statement of works from National Grid. Effectively that is a date by which you can connect your small generating station to the distribution network because you might have a knock-on effect on transmission investment further down the line. What that means is theoretically a one kilowatt PV panel on a roof may be deemed to have an impact on the transmission network and therefore in Scotland, in some cases, is not allowed to actually connect to the network until 2018. That is the kind of illogical conclusion of the CAP167 debate and one that is current. Because we have these code numbers it sounds a bit "anoraky" but it is an interesting subject where community projects, small scale renewables, micro generation and distributed generation can be prevented from connecting because of this theoretical risk and this tussle, I think, between distribution network operators and transmission companies.

  Q186  Dr Whitehead: Is there not an issue though as far as distributed generation is concerned of volatility? I have an image of the main transmission network, as it were, as a long distance railway with trains timetabled and going on in an orderly fashion and then the distributed system as a branch line and the claim is, apparently, that for the future any train that turns up goes around the branch line system. Is that not a problem as far as the future integrity and viability of a distributed system is concerned because if we are serious about the extent to which distributed generation will move forward over the next ten, 15 years we simply cannot tell who is going to connect up, where, when and under what circumstances.

  Mr Edge: I think this is a wider issue around the management of the distribution networks generally. Distribution is generally the poor relation of the network and grid area and does not receive the attention that it increasingly will need to, given that we will have a feed-in tariff, there will be more micro generation and small generation; we are going to have increasingly demand side participation and this all at the distribution level and this is where this buzz phrase, "smart grids", which I believe a lot of people use and not many understand, actually applies in most cases. And it really is not getting the attention it deserves, particularly, for instance, in the current Distribution Price Control Review, which is for the period 2010 to 2015, which is when we will need a lot of investment to manage exactly these issues and it is not part of the debate. It is being addressed to a certain extent under Ofgem's RPI-X @ 20 Review but they have explicitly stated that it will not apply to this DPCR. So I think there is an enormous gap; we are going to get through to 2015 and realise that we should have done this about five years previously and we are way behind the curve. So I think there are lots of issues in general around here which need to be forced up the agenda.

  Mr Ormiston: And in terms of having a long term vision for networks for GB and indeed Europe, how is electricity going to be used, what services are you going to provide by 2050, it is not just going to be powering our lights and our gadgets, it is going to be for transport and it is also going to be for heat and in those circumstances you need a pretty robust distribution network. Moving forward—and I think this may be at the heart of the question—are we emphasising so much on transmission investment and transmission that we lose sight of the small scale and distributed networks? If we do that we have made a massive mistake because we will need to have a robust distribution and transmission network with which to move around our power. Transmission networks almost give you a certain amount of guarantee of security and reliability because you can move that electricity long distances in distribution networks, ie people to use electricity, in the many forms that we are using it by 2050. So big investment and innovation in these smarter grids, these intelligent systems and allowing a lot more distributed generation to actually get on the system will require this investment in distribution.

  Q187  Dr Whitehead: That being the case, particularly as Gordon has mentioned, the issue of smart grids coming into play, particularly in the distributed end, who pays?

  Mr Edge: For investment in smart distribution?

  Q188  Dr Whitehead: Indeed; it may strengthen the distribution system or smartening it and getting it more reliable as far as potential volatility is concerned.

  Mr Edge: But then you are also getting the benefits of perhaps lower investment in wires per se if you are able to manage the flows and the demands, so that you do not need to pay more for the wires; you invest some in the smartness and that gives you the opportunity to invest less in the dumbness of just the wires. This is a point perhaps I should have made slightly earlier when I was talking, that it may be that you need a distribution system operator to do all the management and the investment around this, but I do not see why it should not just be recovered through the distribution network user system charges. I do not see why it should make a huge difference, and the percentage of the customers' bills which is applied from the distribution network is very small.

  Mr Russell: Ultimately, to answer the question in a straightforward manner, the customer always pays. The point is, by having smart networks they are paying less than they would be if you did not have smart networks.

  Q189  Chairman: That is what we hope to see.

  Mr Russell: That is the idea. If they are not then you should not be doing smart networks. You are not doing them just to keep engineers amused; they are being done because ultimately they will be able to do what engineers do or should do well, which is to do for ten pence what any idiot can do for a pound and deliver the same level service in a smarter, more intelligent way. On something you said earlier—your train analogy—I assume you were talking not about hour by hour management of the system but longer term management and generators that build and connect to distribution networks in an uncontrolled fashion. Nobody is suggesting that the interface between distribution networks and the transmission networks must not continue to be very carefully managed by the respective network operators; they do this at the moment. In general the majority of cases flows from transmission to distribution and connecting some new generation at the distribution level, all that means is that those flows are less and may indeed reverse. That is no different from demand reducing and there is and continues to need to be liaison very regularly between distribution network operators and transmission system operators to manage the interface and the connections between the systems.

  Chairman: These are very important areas and I wish we had a little bit more time to go through them, but unfortunately our time is constrained, as you appreciate. But there is an awful lot of food for thought here, on which we would like to reflect. Just to bring this session to a conclusion, we did mention the problem of planning, which you flagged up and Anne Main wants to come in on this.

  Q190  Anne Main: I can almost need a one word answer on this. Do you believe that the changes that were brought about in the 2008 Planning Act will actually speed up the process for new electricity network infrastructure and do you think that any improvements in the planning in Scotland will deliver similar or greater benefits?

  Mr Edge: It should, in England and Wales.

  Q191  Anne Main: So England and Wales it should. Scotland?

  Mr Ormiston: In Scotland the second National Planning Framework and the Planning Act 2006 ought to speed the process up but we would need to get it down for—

  Q192  Anne Main: Shoulds and oughts are not exactly—

  Mr Ormiston: It remains to be seen. We have an 11-year process of Beauly-Denny at the moment and we need to get that down. I imagine it would come down but would it come down to the point where it is acceptable? That remains to be seen.

  Mr Edge: The issues around things liker resourcing of the Infrastructure Planning Commission is that they are actually going to have to do an awful lot of different things and they need to have enough resources.

  Q193  Anne Main: You have concerns about the resourcing?

  Mr Edge: Yes.

  Mr Russell: Can I say a different word? Not surely or will but hope. We hope it will. There is one concern and this is not to do with wires, it is to do with generation projects and that is in England and Wales—it will not directly affect generation of less than 50 megawatts and that is a major area of concern to us.

  Q194  Chairman: It is exempt.

  Mr Russell: That it does not affect the local authority process.

  Q195  Anne Main: Is that a failing?

  Mr Russell: We would like to see that made as certain in terms of timescale and not going over the same arguments, national ones, again and again for projects of that size, as we hope the new legislation in England and Wales will lead to for larger projects.

  Chairman: Thank you very much, gentlemen. I have to draw this to a conclusion there but thank you very much for the detailed way you have answered the questions; it has been very helpful to the Committee.


 
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