Saturday, August 1, 2015

Climate change, energy and the developing world



It seems likely that climate change will hit most countries, but possibly the poorer developing countries the hardest. Adaptation to climate change may be urgent and mitigation of its causes may also be vital, but many poor developing countries don't have the financial or technical resources for either and certainty not both. They often claim that the rich countries, who have benefited in the past from burning fossil fuels, should shoulder some or even most of the cost, for example by contributing to aid programmes. Agreement in principle has been reached on establishing a $100 billion p.a Green Climate Fund by 2020, with donations from the major industrial countries: the USA recently provided $3 billion- though that may yet be blocked by a Republican backlash.

A perhaps more direct, but very aggressive, route may be adopted by those seeking compensation for victims of major climate change related events. But who to sue? One NGO report listed 90 global companies who it said produced 63% of the cumulative global emissions of industrial CO2 and methane between 1751 and 2010. They include big coal and oil companies. Some may be feeling bit nervous, although name and same list like this may be rather partisan and limited: see the Onion’s satirical take on it: we are all responsible http://t.co/gPQaXKQzAP.  Litigation may have its merits, but it mostly earns lawyers fat fees; what is really needed is changed policies for the future-though fear of litigation may lead to that. http://link.springer.com/article/10.1007/s10584-013-0986-y   The UN Sustainable Energy for All programme may be a bit more hopeful as a direct way ahead, helping developing countries to build up renewable energy capacity : http://www.iisd.ca/energy/se4all/2014f/html/crsvol181num7e.html

However all this is set in the wider context of the debate about global climate and energy policy. Should developing countries be allowed to expand their emissions for a while to catch up- e.g. using a ‘contraction and convergence’ approach, with all countries aiming to get to a set carbon per capita level by a specified date. But who would police it?

The use of per capita measures, although arguably equitable in human terms, does of course favour countries like China, with large populations, but in terms of global impacts, where the emissions come from is not important, just the total amount.  And on that basis, China now leads the world, with many other newly developing countries following them with ever-increasing emissions.  China may now aim to cap it’s emission by 2030, but the level at which they will be stabilised would, on current projections, be well beyond that of any other county, a claim forcefully made (and perhaps overstated) by those who objected to the USA’s much more stringent proposed emission cuts- 26-28% by 2025.. www.washingtonpost.com/politics/gop-congressional-leaders-denounce-us-china-deal-on-climate-change/2014/11/12/ff2b84e0-6a8d-11e4-a31c-77759fc1eacc_story.html

Interestingly, some analysts in India were unhappy with the US-China deal. They felt much more was needed: www.downtoearth.org.in/content/us-china-climate-deal-maker-or-breaker 
And certainly many less developed countries will wonder why they should be expected to curb their emissions when the industrial countries are only making relatively minimal efforts.

That view does of course reflect the assumption that making the necessary change will be very expensive- and that may not be true. As the International Renewable Energy Agency and the International Energy Agency have both pointed out, renewables are getting cheap and may soon be competitive with most conventional energy sources in many locations. Some already are. www.irena.org/remap/

That assessment is based on simple levelised cost comparisons. If the immediate and urgent air quality related health issues and medium term but already apparent climate change impact costs are included, then many renewables already look like a better deal. Moreover, using them avoids the cost of having to import increasingly expensive fossil fuels. It's the same for energy conservation measures- they make sense now. Obviously the change over will be hard, and there will be incidental transition costs, but scenarios are emerging suggesting that, for example, India could, in theory, get up to 90% of its total primary energy from renewables by 2050, assuming major energy savings: http://www.wwfindia.org/?10261/100-Renewable-Energy-by-2050-for-India
And this in a densely and highly populated country without a lot of room for PV or wind.

In developing regions in Africa and elsewhere, the situation is very different and the potential may be even larger. For example, the International Renewable Energy Agency says that Africa has the potential and the ability to utilise its renewable resources to fuel the majority of its future growth with renewable energy. It adds ‘doing so would be economically competitive with other solutions, would unlock economies of scale, and would offer substantial benefits in terms of equitable development, local value creation, energy security, and environmental sustainability’.
www.irena.org/menu/index.aspx?mnu=Subcat&PriMenuID=36&CatID=141&SubcatID=276

Clearly the interaction between global geopolitics and climate/energy policy is complex, as are economic development issues, but the technology is emerging to simplify the situation. What is now needed is the political will and vision to make the changes. The industrial countries are making some effort, some more so, others less, but the future may lie with what the others now choose to do. The rich world can help, with properly targeted aid programmes and technology transfer. The World Bank says it will henceforth invest heavily in renewables and clean energy and only fund coal projects in ‘circumstances of extreme need’, where no clean option was viable at a reasonable price, because climate change will undermine efforts to eliminate extreme poverty. www.theguardian.com/business/worldbank

That is good news- we clearly need new priorities. But the changes can’t be driven just by ‘top-down’ programmes, however altruistic. It’s a big responsibility, but, especially for developing countries without easy access to fossil fuels, the opportunities for doing it right may be large.  Of course all this would be easier if were not for the gross global imbalance in power and wealth and the dominance of multi-national corporations locked onto and defending the old path. But the new path beckons and may even be part of the revolution that will change the balance of power.  


Thursday, July 2, 2015

Climate Changes again

 
It is incontrovertible that the climate is changing, and the cause seems clear- emissions of greenhouse gasses due to human activities including burning fossil fuels. However the scale, nature and pace of the changes, and their likely specific local impacts, are still  uncertain.  Changes continues around the world, but global average temperature rises have slowed over the last decade or so, leading some to doubt that the accuracy of the computer models, which predicted continuing increases. Revisions to the models have offered a variety of explanations for the ‘pause’, of varying degrees of plausibility, one being that the heat has gone into the depths of the seas.

Most contrarians are unconvinced by these explanations, and by the models in general, and the media has often amplified their doubts, adding to a sense of uncertainly. Certainly the possibility that bad impacts will be slowed has made it harder to maintain wide support for a sense of urgency when it comes to radical climate action. A delay in significant response could be tragic, if the overall models are right, since, whatever the cause of the pause, once it ends, they imply that we can expect rapid ‘catch up’ temperature rises and massive impacts.   But that is not certain.

So for some, climate change is a busted flush- not something that needs urgent attention, for others it remains a central concern, with any doubts balanced by a commitment to the precautionary principle: if a threat is large it is wise to take it seriously. Somewhere in between these two views are the various allegedly ‘least regrets’ pragmatic approaches. Prepare for the worst by investing in simple local adaptation measures, and /or in low cost low carbon energy supply/energy saving, but not in major costly technology or policy changes. If climate change turns out not to be significant, then we will not have wasted a lot of money, or set off on a costly path of unnecessary radical change.
There are problems with this. Will adaptation be enough and will it be cheaper than major mitigation measures? Far from new energy technologies like renewables being expensive, in fact they are getting cheaper, even leaving climate impacts out of the assessment. Delaying serious responses may end up costing a lot more, if climate impacts do turn out to be serious. So it may not actually be a ‘least regrets’ policy.

However there is another, arguably more nuanced approach- don't rely just on concerns about climate change to promote the development of clean green energy options. There are other drivers, including the huge and costly health impacts of burning fossil fuel. That’s not far off, it’s now, and very visible in terms of poor air quality, especially in newly industrialising countries like China.  Moreover, even without taking those costs into account, many renewables are now getting competitive with fossil fuel on their own merits; the green path can sell itself.  Will that happen fast enough to deal with climate change?  Probably not, if just left to market pressures. But, with pollution issues being very immediate, governments can impose regulator pressures which may also help with  subsequent climate problems. Very much a middle-way approach.

A much broader and more radical alternative approach is to link climate and pollution issues into a wider political campaign against globalization and capitalism- along the lines adopted by Naomi Klein in her new book ‘This changes everything’.  To some extent she has updated the old Marxist view that capitalism was fundamentally flawed and would come up against a final existential crisis. For Marxists it was the need to increase profits and expand markets, while lowering wages to maintain competition, a conflict which (to summarise awfully) was partly deflected by the advent of more productive technologies and a bit of ‘trickle down’ of affluence to some participants.   But that process led to ever-increasing exploitation of the natural environment. So the new crisis is climate change, and the wider attack on nature, as well as the continuing exploitation of labour globally, as markets grow and production expands. Which means that the poor, low paid workers, the dispossessed, and other politically excluded and marginalised communities across the world, are all recruited, along with the greens, to the struggle. Eco-socialist ideas have been pushed for some while and, with the global economy in a mess, they may now become more relevant, but, with capitalism still dominant globally and powerful culturally, locking aspirant communities into consumerism, an effective challenge to it seems a long shot.

More likely we will see a mix of all the above approaches being adopted, resistance and and denial, reforms and revolutions, unevenly in various parts of the world. Most of the  ‘old’ industrial countries have adopted quite radical long term climate targets: the UK and Germany aim for a 80% GHG cut by 2050, France now has a 75% cut by 2050 target, the US is working on it!  But now has a 26-28% emissions cut by 2025 target. Australia and Canada may be heading the other way, but China is taking it seriously, at least medium term (an emission cap by 2030). So far most of this has come from the top, technocratically, but it’s buttressed increasingly by grass roots pressure. Who knows, we may yet see radical change in the political climate in response to the threat of radical changes to the planetary climate.

The EU has set a ‘40% by 2030’ GHG reduction target, conditional on other countries coming up with similar goals at the upcoming Paris UNFCCC Climate negotiations- COP 21.  That sadly may be yet another COP-out, and even if not, the momentum of and likely wider support for policy change will depend on whether climate change is taken seriously across the world.  That is not certain. So maybe it is wise to add some other policy drivers.  Can renewables be sold as simply a better set of less polluting, more socially appropriate and economically cheaper options?   That case gets stronger by the day, quite apart from the climate issues. There may of course be short-term reversals- fossil fuel prices are currently falling. But, longer-term, fossil fuels are bound to become scarcer and more expensive and, whatever the direct costs, the health impact of using them will continue to impose increasing social costs.  In my next post, I will look at the situation in the developing world, where pollution impacts are already significant and the climate impacts are likely to become even more so. And where, thankfully, renewables are expanding rapidly. 

Monday, June 1, 2015

Ethical engineering

 
Joseph Stalin, in an interview with HG Wells, offered this radical analysis on the social role of engineers: ‘The engineer, the organiser of production, does not work as he would like to, but as he is ordered, in such a way as to serve the interests of his employers. There are exceptions of course; there are people in this stratum who have awakened from the intoxication of capitalism. The technical intelligentsia can, under certain conditions, perform miracles and greatly benefit mankind. But it can also cause great harm....Of course, things would be different if it were possible, at one stroke, spiritually to tear the technical intelligentsia away from the capitalist world. But that is Utopia. Are there many of the technical in­telligentsia who would dare break away from the bourgeois world and set to work reconstructing society? Do you think there are many people of this kind, say, in England or in France? No; there are few who would be willing to break away from their employers and begin reconstructing the world.’
Joseph Stalin in conversation with H.G Wells in Moscow 1934 First published as a special New Statesman Supplement 27 October 1934.  Recycled by NS 18/414  www.newstatesman.com/politics/2014/04/h-g-wells-it-seems-me-i-am-more-left-you-mr-stalin
Is this the type of radical commitment that engineers must aim for? Stalin’s viewpoint was of course that of a revolutionary leader, in very different times, and in reality engineers (and many others) had a very hard time under Stalin’s gruesome rule. Certainly his actual political practices and record are not something many would now defend. However there is an element of truth in this specific analysis, and the consequent prescription: engineers need to be more proactive. A new book on the Ethical Engineering, to which I contributed, explores what that might mean by looking at a range of fields- from energy to medicine, and included a look back at how engineers fared in Communist Poland (actually, none too well). The most obvious area of ethical concern is of course engineers involvement with defence related technology, with drones being a recent issue, and there a chapter on that and another on the risk of the militarisation of space, but as I argue in my chapter on energy, there are positive involvement options too, although even with renewable energy care has to be taken to do it right.  We don't want to replace grim and dangerous work on fossil and nuclear energy with poor jobs in bad conditions, for example in biofuel plantations in Asia.  Or to develop environmentally dubious large-scale technologies like tidal barrages.

There is also range of implementation issues with ethical aspects. New technologies cannot simply be ‘parachuted’ into host communities in a development context.  The classic case of failure to understand local needs is the case of solar cooking (using parabolic dishes for focusing), an idea at one time offered, for example in India, as a seemingly obvious alternative to increasingly scarce wood fuel or the use of dung, the burning of which has environmental and health issues. What was not appreciated was that most cooking was done after sun-down, when people typically came home from work in the fields.  Simple implementation errors like this can be compounded by more subtle failures to understand local requirements and expectations, as some the examples (on medical ICT technologies) in this book illustrated. One of the conclusions that emerges is that there is a need for wide community participation in the implementation process, and indeed in the whole process of technology choice, design and deployment. Ideally the aim should also be to help host communities develop their own capacity to develop the necessary new technologies, so as to strengthen the local economy and local employment. The need for local involvement of course transcends the development context. Wherever they are working, engineers cannot operate in a social vacuum: they must engage widely with the community to try to ensure that the ideas that emerge are socially acceptable and reflect the needs of those they are meant to serve.
While the range of ethical issues raised by new (and old) technology is very wide, and this book only touches on some of them, the overall ethical aim seems clear. We are part of nature it, and, although our technology allows us to change our relationship with it, we need to coexist, choosing and using technologies that do not abuse the environment, people or other species. In this engineers have a special role. This book offers some insights into how that might be played out.

What are the practical implications? There have been attempts to produce charters for engineering ethics to guide professional activities, with modern environmentally-motivated versions sometime listing a series of absolutes in almost biblical terms – e.g.  thou shalt not use fossil fuels.  They can certainly provide overall frameworks, but may not provide an operationally realistic guide to day-to-day practice. Within the various professions, as environmental issues have moved up the agenda, technology selection and design criteria have been developed seeking to provide practical guidance, and environmental impact assessment techniques are now widely required to be used for many proposed projects.  They can be quite narrowly focused on physical impacts, but there are also wider approaches, more suited to project with broad social and environmental implications.

All of this puts a great responsibility on engineers.  Is it really fair to ask them to try to resolve all the world’s many problems?  Some of these problems are well beyond technical resolution, but engineers and technologists do help transform the material world and they have a responsibility to do this ethically. Of course the process of supporting and developing what are seen as sensible options and resisting others, may shade into assessment and promotion based on political views, given the difficulty of establishing moral ‘absolutes’ in some contexts. But in general there do seem to be opportunities, and indeed an urgent need, for engineers to express their views, and to act on them, adopting a precautionary approach. That is the least we should expect.
‘Ethical Engineering’ ed Marion Hersh, Springer, now out: http://www.springer.com/gb/book/9781447166177


Friday, May 1, 2015

All change: new energy, new institutions

 
‘There needs to be some sort of regulatory overseer with clearly defined boundaries, given to it by, and answerable to, Parliament’. That’s one of the main claims of a discussion paper from iGov, the Exeter University based energy research group: http://projects.exeter.ac.uk/igov/working-paper-public-value-energy-governance/

It argues that the current energy regulatory and decision making system is flawed, cumbersome and slow and does not reflect the changing energy context and the need for long term rational energy policy development and management. OFGEM, the main existing regulator, is primarily focused on economics, with competition seen as essential to drive down prices so as to meet social objectives. However, with responding to climate change now high on the agenda, this short-term market based perspective has limits: longer term strategic developments are needed and not all will necessary look cost effective in immediate terms. Meanwhile the market system itself is changing, with ‘prosumers’ and energy co-ops taking over from at least some of the traditional players. The old system of governance was at risk of being captured by, or some say was a creature of, the vested interests of powerful incumbents, and either way does not recognise, or even resists, this change. Certainly there is a potential for chaos, as old regimes break up, and the need therefore for some regulation, but the real fear seems to be about changed power relationships.

The iGov proposals seek to recast the structure and practice of regulation to take these emergent trends and requirements on board in a positive way by expanding the regulators purview and brief.  While there would still be an economic regulatory function, a mini OFGEM, there would be higher-level strategic body changed with what iGov call ‘ Public Value Energy Governance’. Overall iGov argues for ‘a shift in the balance of decision-making-power from ‘the independent Regulator’ to a ‘governance process’ which would establish a changing set of relationships between institutions, so that it moves from a delegated to a directed process’. That would entail ‘a re-balancing of power currently concentrated on the Regulator and National Grid across more, focused institutions which would make the process more flexible, more transparent and more accessible to the regulated companies and customers alike’ and for  ‘a move from a dominant economic ethos to one which broader dimensions, including greater focus on societal wishes and change’ so that this  ‘better meets the technical and social needs of the evolving energy system’. They say they favour ‘a body which is responsible for implementing energy policy, which is separate from DECC and which has heirarchial decision-making power over Ofgem, the system operator and other regulatory and governance institutions’.

They note that the Labour Party has talked about an Energy and Security Board, but iGov want to enlarged this to an ‘Energy, Security, Sustainability and Affordability Board’ (ESSAB) and on balance think it should be outside of DECC, to aid legitimacy. They see it as working with a new state owned and/or not for profit system and market operator (SAMO), which would ‘have responsibility for the technical transformation to a secure, affordable, low carbon energy (ie both gas and electricity) system’. It would ‘enable better integration of system operation, including the demand side, capacity markets / capabilities, storage, heat, interconnection, electric vehicles etc. However, the SAMO would not simply become a recast National Grid. Its roles is sometimes known as a system architect’, an idea also promoted by the Institute of Engineering and Technology (IET), to ensure a holistic approach to adapting the power grid to meet challenging and complex new requirements resulting from decarbonisation. http://mycommunity.theiet.org/energy/pnjv#.UrX5boUhtFw
There is no question that change in needed. Prof Catherine Mitchell for Exeter summarised the problems of the existing system by saying that there was  ‘a lack of legitimacy within our energy policy process which leads to an increasing separation between the policy wishes of Government and/or the energy industry incumbents and with society’ and also ‘a the lack of nimbleness in its decision-making, which means that there is a gap between removal of regulatory barriers and technology take-up, so that in practice change is slow’.  And in addition, there was ‘the way that its rules and incentives suits the characteristics of fossil and nuclear technologies and business practices, thereby undermining new business models and competition and perpetuating the current system and current ways of thinking’. http://projects.exeter.ac.uk/igov/new-thinking-first-past-the-post-politics-is-a-major-barrier-in-gb-to-a-legitimate-long-term-energy-policy-framework/#_ftn1
Would the new system be any better? Prof. Mitchell worries that it would still be prone to political direction, with all the regular volte faces and destabalising policy changes that can entail, but surely in a democracy we have to accept that, even if it leads to continual policy uncertainty. The alternative is a corporatist structure that may be more rational, but may become captive of vested interests or bureaucratic ossification, just as with the present system, though with even less opportunity for democratic scrutiny.  Some say that is what the European Commission amounts to, an unelected executive, only tenuously scrutinised by the European Parliament, albeit with overall direction given by elected (national) ministers serving on the Council of Europe. 
The new UK ‘energy agency’ version proposed by iGov is meant to be more open and decentralized. Indeed the team initially talked about ‘decentralized regulation’, reflecting their view that it should be more open to wider influences and options, including ‘new types of ownership and non-traditional business models reflecting a new public-private continuum’ and ‘new types of consumer or citizen involvement’. But their core belief seem to be that what is vital is a shift from the current OFGEM situation with ‘delegated types of decision-making via a law’ and on to a new system with ‘‘directed’ decision-making via new sets of mission statements, aims, objectives, processes, discussions, expectations and so on which come together as different relationships between those politically responsible and those responsible for implementaion’. 
That may avoid ‘corporatism’, but it won’t avoid political interference.  Whether the later can be made less problematic, or at least more coherent, by a shift away from the UK’s ‘first past the post’ election system, as Prof Mitchell seems to think, is far from clear. Multi-party coalitions may damp down extremes of policy changes, but may be no better at yielding programmes that address urgent problems than the current system.  We certainly need better governance, but we also need better governments, and that's not something that institutional adjustments, however radical, can deliver.   However, some say that multi-party systems open up more opportunities for inputting new ideas into government, and new institutions may also help, so iGov may be on the right track…
With the upcoming UK election likely to yield yet another coalition, we may have no option than to try to make a multi-party system work. Whether it could also tackle regulation remains to be seen.

Wednesday, April 1, 2015

Nuclear in not the answer to climate change

 
The Open Letter to Environmentalists produced by academics in Australia and backed by over 70 academics worldwide, calls on environmentalist to back nuclear power as a response to climate change. Their case is based on the counterintuitive claim that nuclear has lower environmental and health impacts than wind or solar power. The Open Letter, and the backup paper it refers to, admits that nuclear may not be cheaper (on-land wind is already cheaper), but says it is better in terms of land-use, and so biodiversity impact, and also in terms of fatalities. http://bravenewclimate.com/2014/12/15/an-open-letter-to-environmentalists-on-nuclear-energy/

The land-use claim is familiar enough; but calculations like this often ignore the land use implications of uranium mining, fuel processing and waste disposal. Indeed, Amory Lovins has calculated that, when the fuel nuclear fuel cycle is included, the nuclear option overall may actually use more land than a renewable energy system with a similar output: www.rmi.org/images/PDFs/Energy/2009-09_FourNuclearMyths.pdf

Rather than using the total area of the wind farms, this type of approach uses the much smaller area used by the wind turbine towers and any access road:  the rest of the site can still be used for farming, or left wild. Biomass is of course land hungry and its use for energy can have impacts of biodiversity if not done sustainably, but solar arrays on roof-tops take no extra land, while off-shore wind projects (and wave and tidal farms) use no land at all. Moreover, it has been claimed that solar farm arrays protect land from other more disruptive uses and can actually increase biodiversity: http://solar-trade.org.uk/media/140428%20STA%20BRENSC%20Biodiversity%20Gudelines%20Final.pdf

On the basis of a /kWh comparison with nuclear, depending on how much offshore wind, wave, tidal and roof-top solar is included, there is probably therefore not much in it, indeed renewables may actually need less land, unless that is you want to claim the contaminated land in the Chernobyl and Fukushima exclusions zones as wildlife havens and as adding to (possibly mutant) biodiversity

The comparisons of health impacts can also be challenged, as being partial or limited, much like earlier attempts to make estimates: http://nextbigfuture.com/2008/03/deaths-per-twh-for-all-energy-sources.html and www.forbes.com/sites/jamesconca/2012/06/10/energys-deathprint-a-price-always-paid/ Yes people do fall off roof-tops while installing PV cells and there have been fatalities associated with wind turbine installation and maintenance- around 150 so far globally, with around 370GW of wind capacity now in place:  www.caithnesswindfarms.co.uk/accidents.pdf  But that has to be set aside the deaths linked to leaks from and accidents at nuclear power plants (with around 377GW in place globally at present) and also those associated with uranium mining.  Estimates vary dramatically: from a few dozen deaths (direct operator fatalities at Chernobyl) to many tens of thousands, when all the longer term region-wide impacts of radiation are included: www.chernobylreport.org.  The variations are in part due to different views on the impacts of low-level radiation exposure. It is usually argued that exposure to radiation from external sources at around background level is acceptable, but that may not hold up in the case when radio active material is ingested-  continual long term radiation from internalized sources can have large impact even if the source is weak.  

Independent  radiation expert, Dr Ian Fairlie, argues that "Contrary to the paper's (unsupported) assertions that nuclear is less of a problem than wind or solar, over 40 epidemiology studies worldwide indicate increases in childhood leukemias near nuclear reactors. The large spikes in gas emissions when reactors are opened for refuelling result in radioactive plumes which may cause high radiation doses downwind of nuclear reactors. In addition, the authors appear unaware of the recent compelling epidemiological evidence that radiation risks, especially from internal emitters, are greater than currently estimated. See http://www.ianfairlie.org/news/recent-evidence-on-the-risks-of-very-low-level-radiation/ The new studies have good statistical power, and are mostly from government or academic sources - indeed some are by scientists who used to work in the nuclear industry. Taken together, the new studies indicate that our current understandings about radiation risks, especially in infants and children, may be incorrect and may need to be revised upwards."

Even when we take account of the lower load factors achieved by wind (30%)/PV(10-15%) compared to  nuclear plants (70-80%), its hard to accept as proven that, long term,  nuclear is less hazardous/kWh of final energy supplied. 

Many of the other assessments made to buttress the Open Letter are similarly debatable, in that they seem to ignore or downplay some serious issues with nuclear expansion. For example we face increasingly worrying security and proliferation risks: www.theecologist.org/News/news_analysis/2680005/nuclear_power_and_biodiversity_dont_forget_wmd_proliferation.html And sites have to be found for nuclear plants that will be safe from flooding, sea level rise and the increased storms and tidal surges expected due to climate change. We also have to find safe locations for long-term disposal of increasing amounts of active wastes.

There are also some implicit strategic issues. For example, can we really rely on fuels which will inevitably become scare, with, as low grade uranium ores have to be mined and processed to make nuclear fuel, using fossil fuel, carbon dioxide emissions rising?

Overall, the Open Letter and linked paper’s attempt to make a case for nuclear seems unconvincing. Certainly other studies have come to very different conclusions. For example, a global life-cycle assessment of clean energy sources by an international team claimed that a renewable system could supply the world's entire electricity needs by mid-century without major problems with resource (materials) use or eco-impacts, including land use and biodiversity: www.pnas.org/content/early/2014/10/02/1312753111.abstract 

The EU’s Externe study estimated the extra social and heath costs of all energy systems, and found that nuclear had the highest: http://www.externe.info/externe_2006/
A subsequent study by Ecofys for the European Commission included estimates for climate change costs, and put the total nuclear social and environmental costs at €18-22/MWh, more than for any renewable: http://ec.europa.eu/energy/studies/doc/20141013_subsidies_costs_eu_energy.pdf
 
In reality there would seem no need to bother with a high cost, risky nuclear option, when there are better and increasingly cheaper options available. Renewables already supply twice as much electricity globally as nuclear (22% v 11%)  and are expanding rapidly, while nuclear is in decline in most places.  If for some reason nuclear is expanded, then given inevitably limited funding and other resources, it will divert support from, and slow down the expansion of, renewables - the only long term sustainable energy supply option we have.  Some say we can have both renewables and nuclear, but, quite apart from direct competition for funding, this ignores the fact that there can be operational conflicts. Nuclear plants are usually run at full power 24/7 to recoup their high capital costs, and their output cannot be run up and down to match variable renewables regularly and quickly without facing safety problems - the Xenon poisoning has to be given time to clear.  So, if there are large amounts of nuclear and renewables  available on the grid, more than is needed when energy demand is low, which plants give way? It make no more sense to curtail wind and solar than it does to curtail nuclear. Basically they are incompatible at any significant scale, and as we move to flexible systems of decentralised generation using smart grid dynamic demand  management and supergrid balancing, large infexible nuclear plants just get in the way.

Some look to small-scale possible more flexible nuclear plants, or fast breeder plants perhaps based on thorium, which could extend the fissile fuel resource, but they are all long off and very speculative, in terms of cost and, arguably, safety. Even longer term, some look to fusion.  But that is even more uncertain and far off. We need to deal with climate change now, so why not use the fusion reactor we already have- the sun.  Energy demand can be tamed- electricity use has fallen by 14% in the UK this century. And renewables can be ramped up to supply the bulk of our energy by 2050, as Germany, Denmark and others are planning, all without nuclear and with smart grid and supergrid systems helping to balance locally variable supply and demands. That’s the way forward.   

Sunday, March 1, 2015

The Election: green energy issues

 
At the start of this election year, not to be outdone, RenewableUK (RUK)  produced its own Manifesto. It said that, by 2020 ‘wind should be meeting a quarter of the UK’s electricity need’ and that ‘by 2050 there is the potential for 50% of the UK’s power to come from offshore wind alone, depending on the development of an interconnected grid’.  It suggested that up to 20% of UK electricity could come from wave and tidal by 2050.  So, if fully achieved, that’s 70% in total by then, even leaving aside solar, biomass, hydro, and geothermal. Overall, RUK noted that, in the Committee on Climate Change’s projections, wind doubles or triples between 2020 and 2030 and wave/tidal expand 20 times. Why not? At least that. And more after.  If the political will is there. www.renewableuk.com/en/publications/guides.cfm/general-election-manifesto

On that issue, RUK said that a poll had found that  61% of Conservative voters, 72% of Labour and 79% of Lib Dems backed wind, as did (surprisingly) most UKIP voters.
A good pitch!

To push things on RUK said that whoever was in power needed to ‘set a clear path for investors by setting a 2030 decarbonisation target, with an accompanying extension of the Levy Control Framework, and an indication of how different technologies will play their part. The strongest signal of all would be a 2030 renewables target.’ Continued support was also needed for technological innovation to get costs down e.g. for offshore wind.

The cost of all this would certainly be a central political issue. While the right has made much of the alleged major impact of supporting renewables and the electricity market reforms, Ofgem said Feed-In Tariff related cost were £14m in 2010-11, £151m in 2011-12 and £506 m in 2012-13. And, looking at the Electricity Market Reform overall, DECC said ‘household electricity bills will on average be £41 (or 6%) lower per year over the period 2014-2030 under EMR compared to meeting the Government’s objectives with existing policies. For businesses, bills are expected to be 7-8% lower’.

However not everyone has been convinced by claims like this. The FT carried an energy policy Blog saying: ‘deals which guarantee index linked prices - from a starting point way above the current wholesale price for 15, 20 or in the case of new nuclear for 35 years are indefensible. Each element of the system should be competitive, with performance incentives, which allow suppliers and consumers a share of the benefits if the providers succeed in bringing costs and prices down. EMR should be scrapped and a review process created to come up with the details of a better scheme which can be implemented once the election is over.’ http://blogs.ft.com/nick-butler/2014/07/06/can-energy-policy-be-rescued-can-the-uk-accept-that-current-policy-is-failing-and-come-up-with-something-better/

By contrast, Matthew Knight, director of strategy at Siemens UK Energy, told an energy fringe meeting at last years Labour Party Conference: ‘The UK is better off to the tune of 1.5% of GDP if it follows the decarbonisation path rather than doing nothing. It’s just a myth that this is all hopelessly expensive.’ And RUK pointed to local benefits:  ‘on average a wind farm contributes £100,000 per installed MW to the local community’, so ‘a typical wind farm with five 2MW turbines represents a £1m investment in the local area through employment, contracts and community benefits over its lifetime’

Taking a very different line, earlier this year, former environment secretary Owen Paterson launched an attack against the ‘wicked green blob,’ and its climate views at the Conservative party conference: ‘There has not been a temperature increase now for probably 18 years, some people say 26 years’.  UKIP meanwhile said it wanted to repeal the Climate Change Act and shrink the Dept. of Energy and Climate Change!

The nuclear issue may yet rise up the electoral agenda. In the euro election last year, the Lib Dems didn’t mention their  (U-turn) support for nuclear within the Con Dem coalition, Labour was and is also all for it, so is UKIP, and very hostile to renewables, leaving just the Green Party as the only pro-renewables anti-nuclear party, apart from the SNP in Scotland. The Trade Unions are mostly still backing nuclear, with employment being a key attraction, and jobs could well be an issue in the election. But that cuts both ways. RUK says that in 2013 the wind, wave and tidal employed 18,465 people directly and from the left, the Campaign against Climate Change trade union group has a new edition of its ‘1 million climate jobs’ booklet: www.campaigncc.org/greenjobs#pamphlet 

With the impact of cheap oil and local resistance to dodgy shale gas also now on the agenda, the scene is set for some interesting exchanges. The EU will inevitably be central. In the Euro-election last year, the Conservative party outlined what it saw as its achievements in relation to the EU, including: halting EU attempts to ban further offshore oil and gas drilling, stopping EU attempts to over-regulate the UK’s emerging shale gas industry, and ensuring that the proposed 2030 renewable energy target is non-binding on individual EU countries. All very negative.

So what will be in the election manifesto’s for May? An on-land wind freeze from the Tories? They have indicated as much and it would appease those with anti-wind farm view in the shires.  Support for green gas from Labour? Labour’s energy spokesperson Caroline Flint has baked gas grid upgrades for green gas injection, so as to continue to provide heating, which she said would cost much less than for the electrification of the heating systems in the UK. The current government plan is to do that via electric powered heat pumps, which she said would need an electricity transmission and distribution system four times its current size.

Community energy is also a new political focus for nearly all the parties, most obviously the Greens. However, the Labour linked Co-operative Party wants German styled local ownership and mainstream Labour is also evidently keen on it: www.independent.co.uk/news/uk/politics/community-energy-would-bypass-the-big-six-under-labour-9923413.html

Meanwhile, in its recent report on the development of UK energy networks, reflecting views from at least one part of the current coalition, DECC has been talking lyrically about a future in which ‘consumers will become active players in the energy system’ and in which ‘our electricity mix will no longer be dominated by a small number of large generators.’ DECC said it expected to see ‘a growth in the deployment of generation at the local level, where generation and heating can be delivered through a more integrated system which will also deliver storage’

In particular it said ‘increasingly, communities will come together to manage their energy needs locally, building their own generation, managing their energy use to maximise the use of locally produced electricity and using revenues to invest in energy efficiency and local amenities. This will enable communities and other smaller players in the market to establish local markets where they buy and sell their own energy and become increasingly self-sufficient’

All this is of course a long way from reality. As the problems and delays with the smart meter roll out programme have indicated, there are major implementation issues and there are also some institutional and legal problems facing community energy projects. The Financial Conduct Authority has changed the rules under which new energy co-ops can be established: www.theguardian.com/environment/georgemonbiot/2015/jan/23/community-energy-companies-big-six-big-society   
And the Treasury has also cut access to tax breaks for some co-ops: www.theguardian.com/money/2015/jan/31/treasury-tax-breaks-green-energy-schemes

It is also hard to see how this all decentralisation fits in with DECC and the government’s love affair with large inflexible centralised nuclear plants. That commitment would no doubt remain unchanged under a Labour-led administration. It seems to be locked in place in establishment thinking. For example, DECC’s 2050 Pathways Team Leader, Katherine Randall, recently told the Lords Select Committee on Science and Technology that ‘while it is possible, technically ... to generate a pathway that does not use nuclear’, it is not desirable, because excluding nuclear would put significantly more pressure on supply and the use of other technologies, some of which, such as CCS, are unproven. It would, she told them, also require ‘a great deal more effort ... on the demand side’ which has so far proven to be difficult and a ‘significant effort on balancing’ the supply of electricity in the system. http://www.publications.parliament.uk/pa/ld201012/ldselect/ldsctech/221/221.pdf

So while on one hand DECC, and by implication the government, seems to have signed up to the decentralist green dream, it is also still locked into the exact opposite. Or does that just reflect a conflict between the LibDem and Tory parts of the coalition? One thing seems certain, the election will split it further. Though, with support for the Greens apparently growing, what that will mean in terms of new coalition options is anyones guess.

Sunday, February 1, 2015

All change - as oil gets cheap



With oil prices being cut, the energy policy scene is getting increasingly fraught.  Keeping OPEC oil production levels high has forced prices down as oil seeks to see off the boom in coal use. That in part has been due to the shale gas boom in the USA- which has been able to export more cheap coal.  But these market manipulations are set in the context of climate change polices which seek to reduce fossil fuel use (coal especially) and promote the use of renewables.  That has had a big impact in Germany, where, with the Feed In Tariff system supporting renewables,  gas plants find it hard to compete and coal plants are frowned on- though still used. And nuclear is on the way out. One results has been that, following the lead of RWE and Siemens, who exited nuclear some while back, E.ON, the largest utility, is to back away from nuclear and fossil fuels- hiving them off into a separate new company, the rump company then focusing on renewables and smart grid management systems: www.businessgreen.com/bg/news/2384209/eon-unveils-bold-plan-to-focus-on-renewables-and-ditch-fossil-fuels                 

There was speculation that this might be an attempt to abandon uneconomic nuclear plants and their associated decommissioning debts, but more likely it was just a case of following the market.  Nuclear and fossil plants had no long-term future, although the question does arise, who will provide the power input for grid-balancing services for variable renewables? Some just saw it cynically as an exercise in chasing green energy subsidies- although equally it may be that operating marginal cost renewables will be much more lucrative than trying to rely on capacity market balancing payments.
http://www.renewableenergyworld.com/rea/news/article/2014/12/german-fossil-fuel-giant-jumps-on-renewables-bandwagon

Nevertheless, not everyone likes this trend anti-fossil trend. And fossil fuels are clearly far from dead. Indeed they make stage a comeback. In this context it is interesting that the competition to replace Maria van der Hoeven as head of the International Energy Agency (IEA) has heated up, with Fatih Birol, a former Opec oil technocrat, emerging as a potential candidate. van der Hoeven has overseen a what some see as a radical shift in the IEAs views, with renewables and energy efficiency heavily promoted, but it still backs nuclear and has strong links to oil. Will those be strengthened, given current oil issues?

There are certainly worries. It was bad enough Russia playing market and geopolitical games with gas exports, threatening European energy security, but oil price cuts can have major impacts on all economies- beneficial for most in the short-term, but no so welcome long term, especially for oil and gas exporting countries. Russia has been hit hard for example. More worryingly, they could impact on renewables. Peter Atherton, utility analyst at Liberum Capital, says a prolonged period of $60 oil could drive down UK electricity prices below £45/MWh, which ‘would destroy value on existing renewable energy projects and make it difficult to raise financing for future projects’. But this may all also be the last straw for nuclear..as well as undermining the case for shale gas.             

Meanwhile there are those who worry about relying on renewables, and want to see gas and even coal used, along with nuclear, instead. In the UK, the Civitas think tank has made this sort of case yet again. http://t.co/y9mQzt58Qj In the USA, Forbes warned that superficially attractive comparisons of renewables and fossil fuel costs, based on using Levelised costings, disguised the cost of dealing with variable renewables: www.forbes.com/sites/williampentland/2014/11/29/levelized-cost-of-electricity-renewable-energys-ticking-time-bomb/

By contrast it is often taken as a matter of faith that shale gas will carry all before it. Certainly shale gas continues to flourish in the USA, with shale gas overtaking conventional natural gas production, a big change from 2007 when it only produced 8% of the total.  And the U.S. Energy Information Administration  says that new technology has enabled producers to lower the market price of natural gas: www.eia.gov/todayinenergy/detail.cfm?id=18951 Whether this will be a short lived speculative bubble remains to be see: well productivity falls off quickly so more wells have to be drilled.  It’s also unclear if the same thing will happen elsewhere. Gas was always expensive in the USA, unlike in the EU, and the geology is different. And population densities are generally much higher. But as noted above, the economic impact of cheap US shale gas has spread widely.  Optimist may see shale gas as offering a lowish carbon interim option while renewables are ramped up, pessimists will see it as delaying just that, and environmentalists worry about local and global impacts.
Overall then there’s a bundle of conflicting beliefs, pressures and concerns, although the fossil lobby’s power remains strong…stronger maybe than the multifaceted climate lobby.