The Economics of Renewable Energy - Economic Affairs Committee - Contents


Examination of Witnesses (Questions 360 - 377)

TUESDAY 1 JULY 2008

Ms Vivienne Cox and Mr James Smith

  Q360  Chairman: We are due to stop at about 4.15 to 4.20 with you but we do not have written evidence from you and I think you are very, very key players on the scene and I am sure the Committee would want to go on a bit beyond 4.20 if that is possible. Just following up the point Lord Lawson made, a number of our witnesses and also quite a lot of our written evidence has suggested that the 2020 15 per cent target is, and the phrases vary from "extremely challenging" to "unrealistic". What is your view on that because they have also stressed that this will have a substantial cost to the consumer? Is there any particular reason, apart from the EU fixing that figure, why we should have 2020 and would it ease the cost if we relaxed it?

  Ms Cox: I think the number you choose is a political choice because you can choose a different number and it has a different cost associated with it. I would say that there is merit in having longer term targets in order to make sure that the technologies that are successful are the right long-term technologies. If I have a concern about the numbers it is the time period is short and there is therefore a risk that the investment would be skewed to those technologies which work today as opposed to those technologies which might be right for the longer term.

  Mr Smith: I think I would probably echo that. You may have seen the consultation on the Renewable Energy Strategy that BERR produced last week, all 282 pages of it, and in there it does talk about 45 new gigawatts of power by 2020, 30 of which would be renewable offshore and 15 of which would be conventional and very considerable increases in renewable heat and also for transport. That does seem quite a lot to achieve in a relatively short period of time. I think it is wise to consult on it.

  Q361  Chairman: If I could turn to the next set of questions. How does the UK compare to other countries in which you operate in terms of the policy environment for renewable energy? If you had additional capital to invest in renewable energy which countries would you look at first?

  Ms Cox: The only renewable investment we are making in the UK is in biofuels where we are investing $400 million in a biofuels plant at Hull that we are investing in with British Sugar in a deal with DuPont. We have chosen to invest in wind in the US for the reasons that I talked about earlier. It is about scale as much as anything else. It is about what can we as BP do with relative advantage, and we believe that is with large-scale projects/wind projects onshore in the US. The UK market should not be the right market, in my opinion, for solar. There are other parts of the world where solar technology is better applied and our solar business is concentrated in Spain, Germany and California where I think if you took the issue of comparative advantage you would say that they are markets that are more suited to solar technology and I think this issue of comparative advantage is an important one. Looking forward the pattern of our investment may well shift if there is an offshore wind industry in the UK because we do believe that that is somewhere again with comparative advantage where we have opportunities to play but at this point we are not choosing to put our renewables investments into the UK for different reasons in different technologies.

  Mr Smith: A couple of things come to mind. You asked about renewables, and if you will indulge me I will mention carbon capture and storage again as being very important for the UK as well, in my opinion, and therefore the carbon capture and storage competition could be extended to things like pre-combustion technologies as well as post-combustion. The other comment I would have is on the Renewables Transport Fuel Obligation where I think the Government knows that what they have done is a start, it is a volumetric obligation without necessarily looking at the sustainability criteria. A transition—which I think is recognised—towards an obligation that relates to carbon content and requires sustainability criteria would be the right direction to move in.

  Q362  Lord Lamont of Lerwick: Any there any renewable projects in either of your two companies which would be viable in the sense of not requiring an economic subsidy?

  Ms Cox: We are seeing solar projects which are competitive with the Grid in some markets. If you take California where they have a very high power price and where they differentiate in terms of time of day, solar energy is competitive with peak power pricing. In Japan it is competitive with peak power pricing. So in certain markets we are seeing solar projects competing. I would say that with a $50 a tonne carbon price then onshore wind projects are also competitive in some markets.

  Mr Smith: Onshore wind, with the increasing cost of fossil fuels and the cost of carbon, is becoming competitive. Also on solar, we are involved in thin-film solar and we are involved in a pilot plant in Germany. Thin-film solar has certain potential advantages. It is not at market yet but it is an example of something that if it works, and it is still an "if", could be competitive without subsidy of course.

  Q363  Lord Lamont of Lerwick: Could I just come back to Ms Cox and a question I put to you earlier. At the very beginning I referred to your 40 years/40 years on oil supply predictions and you said were you absolutely confident that something fundamental had not changed in the world recently, and I have not read the actual document but I have obviously read in the press about BP's analysis of world oil supply and world oil demand. You are very firmly of this view and the fact that we have had this rather extraordinary increase in the price of oil in a very short period, with an extraordinary percentage increase, has not caused you to question whether any of those fundamentals in your analysis might have been wrong and whether the situation might be more serious in a way than people had thought?

  Ms Cox: As you are aware, we do the statistical review of world energy on an annual basis. Every year we look at the whole macro and micro set of trends and certainly our analysis which we have recently published says that in spite of the increase in oil and the impact that is having on demand in some countries, the increase in demand in the non-OECD countries will continue and that the overall supply/demand balances remain within the boundaries of what we would reasonably expect. Clearly there are adjustments happening and they are happening in different ways in different countries but there is no fundamental reassessment of supply and demand.

  Q364  Lord Lamont of Lerwick: If these prices levels were sustained a lot of the investment economics would change, would they not?

  Ms Cox: They would but the other factor of course that you have got is the phenomenal increase in demand in the non-OECD countries.

  Q365  Lord Lamont of Lerwick: That has always been there.

  Ms Cox: It is at a much higher rate over the last five years than we have seen historically.

  Q366  Baroness Hamwee: Just going back to economic viability, I suppose thinking about it this must be the case but it seemed to me that what you were saying was that certain projects and certain forms of renewable are viable in certain places because of the choices which have been made in those places about pricing. I suppose it is bound to be circular.

  Ms Cox: I think the fact that these technologies are becoming increasingly competitive is driven by a number of things. First of all, there is an experience curve. You can see it very clearly with solar PV or with wind that over the period of time that these industries have been in existence, the cost per unit of power produced has come down and that of course is helping. It is also true that there are certain markets which are naturally advantaged either because of the quality of the wind resource, because of the quality of the sun, and clearly they are naturally advantaged for certain technologies. On the other side, it is also true that the cost of the fossil fuel based power is increasing and that is meaning that the point is rapidly narrowing for grid parity.

  Q367  Baroness Hamwee: In your example of California you mentioned the pricing structure there and different prices for use at different times of day—sorry, I am rather thinking aloud—and there is clearly a circularity in that. Sorry, what I am supposed to be asking you is about the roles for your respective companies in supplying renewable energy for heating and which forms of renewable energy you think are likely to be most effective in this?

  Mr Smith: I am afraid I do not have anything to say in answer to that question. It is not a business in which we are involved. Heat is referenced in the BERR Strategy Report and consultation that it is a very substantial user of energy and there are a number of technologies such as heat pumps and burning biomass and also solar thermal which can contribute towards it but it is not a business in which we are engaged.

  Q368  Baroness Hamwee: Have you taken a positive decision not to be engaged?

  Mr Smith: I would say yes.

  Q369  Baroness Hamwee: Because?

  Mr Smith: I suppose because we have got a lot on our plate and at some point you might look at something and say that is quite interesting and you might say you have some capability but you decide not to do it because you are already investing £26 billion and you have a number of pieces of renewable energy to work on already.

  Ms Cox: We are in exactly the same position. It is not an area we are involved in and for us again it is an issue of focus. You focus on those areas where you think your skills are going to give you the greatest advantage and it is not clear for us that going into many, many homes is something that we have much advantage in.

  Q370  Lord Moonie: When you are talking about solar power, I take it that you are talking about photovoltaics?

  Mr Smith: In that case what I meant was solar thermal. You run photovoltaics through a solar panel.

  Q371  Lord Moonie: In the latter yes, but in the general comments on California I presume that is generated electricity?

  Ms Cox: Yes.

  Q372  Lord Moonie: I assumed it was but I thought I had better ask.

  Mr Smith: You mentioned concentrated solar power earlier and I think ultimately that may be an interesting technology as well.

  Q373  Lord Moonie: Arrays, mirrors and things?

  Mr Smith: That is what we meant.

  Q374  Lord Moonie: How important are biofuels for your company? Are you investing in the development of second-generation biofuels? When would you expect them to become commercially available? How much would they reduce carbon emissions compared to first-generation biofuels and conventional oil and gas?

  Mr Smith: It is interesting because Vivienne gave the last answer and I could have said the same thing so it will be interesting to see if you would have said the same thing as I do. If you are involved in supplying liquid transport fuels then there is not really a strategic choice to be made; you are going to be involved in biofuels, and we are involved substantially in biofuels already in the US and Germany and Brazil in particular, but recognising that those are early generation biofuels and we need better technology for the future to lower the cost and also to avoid contention with food. We have been involved in what we are beginning to call later-generation biofuels rather than second-generation biofuels because not all first-generation biofuels are the same either. There are some that are much better than others. We are in a joint venture with a company in Ottawa that makes bioethanol from corn stocks, so you use a special enzyme to be able to break down the long sugars in corn stalks so you are not then competing with food. You asked a question about technologies and we have a joint venture in Germany. It is interesting there because they have a piece of technology to gasify wood chips and we have a technology to take the gas and turn it into a very clean diesel. We have been practising that technology in Malaysia for many years and we are building a large plant in Kuttawa at the moment, so it is a fossil fuel-type technology and you can do it to gas from fossil foils or you can do it to gas from coal or you can do it to gas from biosources, so wood chips to a very clean diesel or wood chips to jet fuel as well. We are involved in a project in Hawaii on marine algae which looks quite interesting. The potential productivity of marine algae per hectare could be significantly larger than from other biosources. There are quite a few challenges to making it work. We are also involved in a number of other scientific joint ventures where we are trying to use catalysts not to make bioethanol but to make petrol because petrol is a better thing than ethanol to burn in your car because the energy density is better. We are also working with a life science company to try to make the enzymes more productive. There is a range. We are looking, too, at plant science so for example perennial crops so you do not have to till the soil, there would be less demand on fertilisers, and from things like miscanthus and poplar you can crop those annually and that can become the biomass source for technologies of that kind. You said how long does it take. The unit price is high but these are early days. We hope to build a world-scale plant in Canada relatively soon; the German one is a bit further behind. I think it would take five or so years to begin to prove the technology and another five years before you could think of large-scale commercial deployment.

  Q375  Lord Moonie: Are you doing any work on fuel cells?

  Mr Smith: The simple answer is no, for much the same reason as we are not doing work on heat pumps, because you end up having to make millions of those things in mass manufacture and that is not what we do. Other people can do that better than us. We have been involved in catalytic work in re-forming as a precursor to fuel cells because we have some capability.

  Ms Cox: Our involvement in biofuels is very similar, although I think Shell have a broader range of activities that they are involved in. We are involved in Brazilian sugar cane. We see that as being something which will in an economic and in a greenhouse gas sense be part of the transport fuel pool on an on-going basis. People call it first generation but we see it as being a very good first generation biofuel that should survive. We are involved in this project in Hull so our next generation molecule is actually a butanol molecule and we are looking to develop that molecule in a demonstration plant and then to take the large-scale plant and move the butanol across to that plant. We are also looking at the algae technologies. They look interesting but are some way off. In biofuels in terms of R&D there are many more R&D options to generate new molecules or to grow different crops to process them in different ways to produce different molecules. There are more solutions potentially available in biofuels than in some of the other technologies.

  Q376  Chairman: I think those are very interesting answers because you will be well aware that currently in the food and agriculture debate there is a great deal of concern about the impact in Brazil and Latin America generally and the United States because of the sugar cane take-up and the corn and maize take-up. Your answer seemed to indicate that you are aware of that issue and you are looking to biofuels from other sources and that is where you would expect them most in the years ahead?

  Mr Smith: We did not answer your question about the carbon effectiveness. Some of the biofuels that you are talking about have very minimal even energy benefits far less carbon benefits, whereas the later generation technologies that Vivienne and I have been talking about can give you up to perhaps 90 per cent or more carbon benefit and you do not have the contention with food. You do have to be very concerned about land use. There are still issues about maintenance of biodiversity, maintenance of the habitat, and all of that still needs to be carefully dealt with. We have set out a series of sustainability standards in something called the Roundtable on Sustainable Biofuels and the Roundtable on Sustainable Palm Oil and we are taking those standards and putting them into the contracts with our biofuel suppliers and requiring that they sign up. For those who will not sign there is a detailed conversation; for those who sign too readily there is also a detailed conversation because we want to make sure they take them very seriously and that we can trace back through their supply chain to ensure that there is proper sustainability.

  Q377  Lord Lawson of Blaby: Just on that last point very briefly, you are quite right to point the finger at the important issue of land use because land use is not simply a question of biodiversity and all that, it is the fact that if land is used for fuel the land is not used for food?

  Mr Smith: Yes, you are right, and although there are about 100 million hectares of arable land in Europe, there is other land that is not useful for arable crops where you can plant these perennials so if you are using perennials to create energy crops you are not necessarily in contention with food, but you do need to be very careful about that, I agree.

  Chairman: We have kept you longer than we expected and I think that is a reflection of the interest that the Committee has had in your answers. We are extremely grateful to you for coming and we will certainly reflect very much on the responses that you have made. Thank you very much indeed.



 
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