Showing posts with label solar. Show all posts
Showing posts with label solar. Show all posts

Monday, December 07, 2015

COP21 - The Talking Begins

An audio version of this episode was published on 4th December and is available at susbiz.biz and on iTunes.

Yes, COP21, the Paris climate change conference, is finally here. No results expected before the end of next week so I'm going to take the opportunity to review what this conference means for us, for our businesses, for families and for our future. Also in this episode, the minister takes control of fracking, business views of the climate conference and plans for a ministry of the future.

Welcome to the Sustainable Futures Report, the new, improved and upgraded Sustainable Futures Show brought to you without advertising, sponsorship or subsidy. So I can say what I like.  And a special welcome to friends and listeners on their way to Paris to take part in the official or unofficial events surrounding COP21. It's Friday 4th December 2015 and this is Anthony Day with news, views and ideas, and by the way your news, views and ideas are very welcome and important. Please get in touch and share them. I’m at mail@anthony-day.com. 

First this week, what’s this COP21 conference all about then, and why is it important? It's the UN conference on Climate Change, it involves 195 countries and 145 of them sent their prime ministers or heads of state to the opening ceremony where they each reiterated their country's commitment to cutting green house gas emissions. It’s important to you because if these leaders take truly effective action it’s likely to drive up energy costs in the short term. They will have to put a price on carbon, which means taxing or surcharging anything which emits greenhouse gases. Petrol will be more expensive at the pump. It will cost more to heat your home. Those extra costs will be added to existing production and distribution costs. Almost anything you buy will cost more - from food to fashion, from pharmaceuticals to furniture. The alternative, according to the scientists, is catastrophic climate change: drought, famine, floods and failure of food supplies. At first this will be worst in the developing nations, but our supply chains are global. We’ll be affected by what happens in far-off countries of which we know little. To start with we’ll see higher prices. As the situation worsens we’ll see shortages. As distant nations become uninhabitable will see massive movements of refugees across the world; far, far more than the numbers causing so much argument at the moment. 

The solution is twofold - mitigation and adaptation. Mitigation to stop climate change getting worse: adaptation to cope with and control the effects that are already here. Adaptation involves financial support to the developing nations which are suffering the worst effects of climate change even though they have done little to cause it. An agreement on financial support to these nations by the developed nations will be an important outcome of COP21.

Mitigation, to stop climate change getting worse, depends on a radical change in the way we produce and use energy. Everyone can protect themselves against rising energy prices. Driving more slowly saves fuel. Turning down the thermostat and wearing an extra jumper saves gas. Insulation keeps your home warm for less. It’s more difficult with industrial processes. Bread won’t bake and chemical reactions won’t react except at specified temperatures. Perhaps the answer here is greater efficiency through economies of scale. Beyond that we have to look at new forms of supply which don’t involve burning fossil fuels. Despite scepticism, renewables are becoming more and more viable, producing 25% of the UK’s electricity for the third quarter of this year. I spoke last week about the solar power station in Morocco which stores heat in molten salt and can generate electricity 20 hours per day. Battery storage is becoming more efficient. Domestic stores are already available from Tesla in the US, Sonnen in Germany and Powervault in the UK. If you have solar panels you can save some of your energy for use at night. Energy can also be stored as heat as with the Moroccan power station, as potential energy as in the Dinorwic pump storage scheme in North Wales or stored in massive flywheels. Apart from wind turbines and solar panels, a 320MW tidal power station is planned for Swansea Bay and there is potential for geothermal energy all over the world, including parts of the UK. It’s time to invest in these new technologies. Actually, these generation technologies are not that new. It’s time to invest in developing, refining and perfecting them. It’s time to invest in storage science, like the lithium-air battery under development at Cambridge University.

The fact that the vast majority of the world's leaders took time out to travel to Paris shows they think climate change is important. On Sunday 29th November 50,000 people marched in London to show that they thought it was important too. But people marched not just in London, but all over the world. In more than 2,000 cities - a million of them. It's probably the biggest international march ever. Not in Paris, though. In view of the security situation marches were banned. Instead, people left shoes, thousands of pairs of shoes, in la Place de la République, to symbolise the march they would have made. The Pope sent a pair of shoes. So did UN Secretary General Ban Ki Moon. What do all these people want, and what's in it for you? They all want nations to work together to stop global warming by reducing greenhouse gas emissions and thereby avoiding dangerous climate change. How are they going to do that? Good question. 

Of course the politicians have to balance short-term politics with the need to save the planet. At the opening ceremony of COP21 President Obama said

I’ve come here personally, as the leader of the world’s largest economy and the second-largest emitter, to say that the United States of America not only recognises our role in creating this problem, we embrace our responsibility to do something about it.”

“Let’s show businesses and investors that the global economy is on a firm path towards a low-carbon future.  If we put the right rules and incentives in place, we’ll unleash the creative power of our best scientists and engineers and entrepreneurs to deploy clean energy technologies and the new jobs and new opportunities that they create all around the world.  There are hundreds of billions of dollars ready to deploy to countries around the world if they get the signal that we mean business this time.  Let’s send that signal.”

He went on to say,

“I believe, in the words of Dr. Martin Luther King, Jr., that there is such a thing as being too late.  And when it comes to climate change, that hour is almost upon us.  But if we act here, if we act now, if we place our own short-term interests behind the air that our young people will breathe, and the food that they will eat, and the water that they will drink, and the hopes and dreams that sustain their lives, then we won't be too late for them.”


In his speech, David Cameron asked what we would say to our grandchildren if the conference failed to reach an effective agreement.

“But they would ask us why is it difficult to reach a legally binding agreement when in 2015 there are already 75 countries …. that already have legally binding climate change legislation? …countries that are thriving with that legislation.”

“Why, they’d ask us, is it difficult to have a review after 5 years?

“Would we really be able to argue that it was too difficult?
Too difficult to transfer technology from rich countries to poorer countries?
Our grandchildren would rightly ask us: what was so difficult?
You had this technology, you knew it worked, you knew that if you gave it to poor and vulnerable countries they could protect themselves against climate change – why on earth didn’t you do it?

“What I’m saying,” said Mr Cameron, “is that instead of making excuses tomorrow to our children and grandchildren, we should be taking action against climate change today.”

Can’t argue with that.

But his grandchildren weren’t there to ask why his government has effectively banned new on-shore wind turbines, why it will only support new offshore turbines if they dramatically cut their costs, why it has cut the subsidy for clean solar energy at short notice, why it has terminated the low-carbon homes initiative, why it has modified the renewables obligation to work against renewable energy, why it has removed business start-up tax breaks from community energy projects and why it has withdrawn its financial support from carbon capture and storage, the only way of cleaning up coal and gas power stations. They weren’t there to ask why his government supports fracking, a technique for extracting carbon-emitting natural gas, either.

I expect somebody will ask those questions. Hopefully before it’s too late.

What can we expect from COP21? The majority of nations have submitted an INDC, an Intended Nationally Determined Contribution. A contribution to reducing global GHG emissions. These documents take various forms - different starting points, different end points, different percentage reductions. They have been analysed and the overall effect, if they are all achieved, will be to limit global warming to a 2.7℃ temperature increase over pre-industrial levels. That’s more than the 2℃ which is widely considered the danger level, but much better than the current trend which is rising towards 4℃ or 5℃. An overall draft agreement has been submitted to the conference. As I mentioned in a previous episode, this is really just a template. Every word, every phrase, almost every comma is presented with an alternative. This will be negotiated over the coming days and will determine how the nations will fulfil their INDCs, although not the specific measures that each nation must take. For an insight into the negotiation process listen to “Can we trust the IPCC?”, an episode of the Sustainable Futures Report from November 2014. Search on IPCC at susbiz.biz . In this episode Professor Piers Forster, one of the lead authors of AR5, explains the pressures and compromises involved in agreeing the final text of that document.

David Cameron calls for a binding agreement and we must support him on that. Unfortunately, the word is that the Americans will not accept it. This is because they believe that climate sceptic Republicans would block such a measure.

COP21 rolls on until Friday next week. Since I record these episodes at least a day in advance I won't be able to report on the final outcome in the next scheduled episode. I may possibly issue a special supplementary report early in the following week, or I may defer the next episode altogether until then.

In the meantime I suggest you have a look at “The most terrifying video you'll ever see.” It isn’t really terrifying. It’s a clear and logical examination of whether we should take action on climate change and what would happen if we didn’t. It just looks at our options: climate change is either real or not real and we have the choice to take action or take no action. It’s been up on YouTube for several years and been viewed by over 6 million people. It’s just as relevant as it was when it was first posted. Here's the link: https://youtu.be/zORv8wwiadQ 

Still to come: business views on climate change and a clear view of the future. First, fracking.

The Rt Hon Greg Clark MP, Secretary of State for Communities and Local Government, has announced that he will make the decision on whether Cuadrilla can frack for shale gas in Lancashire. You will remember that Lancashire County Council refused permission back in the summer. The minister says he is now calling the case in and will make the decision himself in the national interest. Not unexpected. Greenpeace are raising a petition in protest but that’s unlikely to change anything.

There was nothing in the Autumn Statement about the proposals to slash feed-in tariffs, so I suppose that we must assume that they will go ahead.
Last Friday Greenpeace sent an open letter to David Cameron in support of renewable energy and asked the government to “commit and put forward policies to support the growth of the UK renewables sector through the 2020’s, consistent with the critical role of the power sector in addressing carbon budgets under the Climate Change Act.” This letter was jointly signed by Unilever, Vodaphone, Nestle, Thames Water, BT, IKEA, M&S, Kingfisher, Tesco and Panasonic.

Other business voices were raised as COP21 started. CBI, the Confederation of British Industry, has published a report on what it would like to see from the conference. 

Rhian Kelly, CBI Director of Business Environment policy, said:

“We all know there is no easy answer to climate change. But, business and industry are part of the solution - developing innovative new products and services, and leading the way in cutting emissions, to propel us towards a low carbon future.
“Firms need confidence to invest in this future though, so the Climate Change Conference is a golden opportunity to create the long-term frameworks that businesses crave. This means a clear sense of direction, support for carbon pricing that can drive investment and getting finance and technology flowing.
“So much effort has been put into agreeing frameworks ready for Paris, we simply cannot afford to fall at the last hurdle, and delay a lasting, global plan for climate action. All businesses, especially energy-intensive industries, will be looking for an international deal which helps create a level playing field, and that keeps the UK competitive.”

“Clear sense of direction.” Let’s hope that the government one day comes to understand that short-notice changes of policy discourage investment. Maybe we should have a Ministry of the Future to concentrate on the long term. Sounds a silly idea? Ian Birrell, writing in the i newspaper, describes the Ministry of the Future which has been set up by the Swedish government to look 50 years ahead. Its head, Kristina Persson, says, “There is a need to see any dangers in time and create a narrative that holds together.” There are policies where the long view is essential. Climate change is one. Benefits, energy, pensions, health and social care all demand a long-term view.  Looking beyond the short term might have made us think twice about the interminable debt burden that is PFI. We now have a National Infrastructure Commission. That could be a step in the right direction, but we need a body with a wide perspective as well as a long view, and we need politicians who will listen. 

Meanwhile, are you taking the long view of your business prospects? Climate change, energy shortages, supply chain pressures - have you factored them into your business plan? Yes the future is always uncertain, but there’s nothing more uncertain than a future unexplored. 
Why not give me a call and we can talk through the type of things which could put your organisation at risk and decide how best to be prepared. Maybe we could talk about putting the issues into focus through scenario planning. The number is 07803 616877  or drop me an email at mail@anthony-day.com. Give me a call and a cup of coffee and I’ll tell you what I think. If you call me now we can get something in the diary before Christmas. Oh, and I’ll expect a mince pie as well. Black Friday? Cyber Monday? This is the bargain of the week. Here’s to Sustainable 2016.

Yes, that’s it, another episode of the Sustainable Futures Report in the can. I’m off to the North West sustainable Business Quarterly meeting in Manchester shortly, kindly hosted by Anthesis anthesisgroup.com at the Bruntwood Tower. I usually meet interesting people there. I’ll tell you about it. 

But for now, this is Anthony Day and that was the Sustainable Futures Report.


Wednesday, November 25, 2015

Going Underground

Published as a podcast at www.susbiz.biz on Friday 27th November 2015
Although recent episodes of the sustainable futures show might lead you to think that it's all about energy, that's certainly not the case. This week I do talk about energy, potential energy under our feet, and also about water, groundwater. Desalination, solar energy, failing monsoons, Moroccan salt and Californian almonds are also on the agenda. And the UK has abandoned plans for carbon capture and storage.


Hello. This is Anthony Day, and this is the Sustainable Futures Show for Friday, 27 November 2015. And from next month it's going to be called the Sustainable Futures Report.

Running Out
According to a report in Nature Geoscience we are running out of groundwater. Groundwater is the one third of the world’s freshwater which is below the surface of the earth. We are using it up more rapidly that it is being replaced. And less than 6% of the water in the top 2 km of the earth’s surface  is renewed in a human lifetime. Some groundwater is rapidly renewed by rainfall and is only a few months old. Other reserves of groundwater can be millions of years old.
In California groundwater from boreholes is used for agriculture. A farmer interviewed by Capital Public Radio reported that the water level in his well was falling by 800 mm each year. Not surprising when you consider that California is in its fourth year of drought. This farmer had decided to do what he could to replenish the groundwater by flooding his crops whenever there was heavy rainfall and surplus water. He was prepared to invest millions of dollars to divert floodwaters to irrigate his crops with far more than they needed so that the water would percolate away through the sandy soil and down into the aquifers. 80% of the world’s almonds are produced in California and the Almond Board is looking at flooding the plantations in order to restore the groundwater there. The problem is that not all agricultural soils are permeable and it is not clear whether all crops will accept excess water. There will also need to be canals and pipes installed to divert the floodwaters. The original farmer was growing grapevines and the excess water did not damage the crop and might even have slightly improved it. Elsewhere in California there is growing tension between farmers as they drill deeper wells in order to secure their own supplies.

The University of the United Arab Emirates reports that Abu Dhabi is likely to exhaust its groundwater completely within 15 years. At the moment 98% of drinking water in the emirates comes from desalination plants. The problem with this is that the process uses substantial amounts of energy, usually natural gas, and the hot liquid which is pumped back into the sea as a byproduct damages the marine ecosystem. Citizens of the emirates use on average 500 L per day each, which is one of the highest rates of consumption in the world. The government admits that the price of water is too low which leads people to have no concern about wasting it and they don’t bother about leaks. Raising prices could go part way to solving this problem and the Emirates are also introducing solar powered desalination plants which will not use gas and presumably will not produce CO2 emissions either.
According to the Times of India, Pune, south-east of Mumbai, is also suffering from falling groundwater levels. The 2015 monsoon was weaker than usual and some areas received as little as 50% of normal rainfall. In 2014 some 6,000 villages saw water in their wells fall by a metre or more. In 2015 this had more than doubled to 13,500 villages. Of these, nearly 3,000 saw the level fall between 2m and 3m and over 4,000 saw the level fall by more than 3m. These villages are on the brink of severe drinking water shortages. The authorities have banned deep wells in 80 locations and say they will have to recharge the aquifers, although it is not clear how they will actually do it.

All these places may be far from home, but that doesn't mean that we won't suffer water shortages in Europe. All too often our problem is too much water, rather than drought but how far do you and your business rely on water? Do you actually know where your water supply comes from? Probably yes, if you’re a farmer. Otherwise it might be worth finding out. In a future episode I plan to review the book “Let there be water” by Seth M Siegel. You can find it at sethmsiegel.com .

Unconventional Energy
Paul Younger is Rankine Chair of Engineering and Professor of Energy Engineering at School of Engineering, at the University of Glasgow. He was interviewed by Jim Al Khalili at the recent freethinking festival. He said his main concerns were keeping the lights on and keeping carbon emissions down. We urgently need to find new sources of energy. We need to find the lowest carbon alternatives and it is urgent because of continuing and increasing fuel poverty and the risk of winter blackouts. He was scathing about an energy policy which has left us with a very narrow safety margin in the event of a severe winter. Have I mentioned that before? What alternative energy sources do we have? As a geologist, Professor Younger has investigated geothermal energy and drilled boreholes deep into the earth. Anyone who has been down a coal mine knows that the deeper you go the warmer it gets. Deeper still and the rocks get extremely hot. It is possible to harness this heat to raise steam and generate electricity, but in many cases it is more efficient to use the heat as heat. Looking at the U.K.'s energy consumption, only one fifth of energy is used as electricity, 2/5 are used as heat and the remainder is used for transport. While it might be possible to use geothermal energy for combined heat and power, the main potential is for running district heating systems. This means that alongside the gas pipes, the water pipes and the electricity cables we would have a hot water main feeding the central heating of each property. It's a system which works well in other countries and if we have a source of free, zero carbon heat it's an opportunity to be seriously considered. Although test drillings have proved that the heat is there, the projects have run out of money.
In Africa, however, notably in Ethiopia, geothermal energy is providing clean, cheap electricity to communities that had little or none before.

Another potential source of energy is underground coal gasification (UCG). This involves drilling into very deep coal seams, way beyond the reach of conventional mining, oxidising the coal and extracting the gas. In fact, this gas would be more important as a source of chemical feedstocks than as a fuel. Many fertilisers, pharmaceuticals and fabrics that we all take for granted are manufactured from hydrocarbons: oil or gas. If we do use gas from this source for energy, the carbon dioxide could be re-injected into the exhausted coal seams. If everything could be done on-site then this would remove the need for long pipelines which seem to be part of the current carbon capture and storage initiatives. Current CCS plans involve piping the CO2 across the country and injecting it into caverns under the North Sea.

At least that was the plan. 
At the same time as the Chancellor, George Osborne, was delivering his Autumn Statement to Parliament this week, the Department of Energy and Climate Change was making an announcement to the London Stock Exchange. It said that the £1bn prize fund for the first company to develop commercial-scale carbon capture and storage was withdrawn with immediate effect. The pilot projects at Drax and Peterhead will not now go ahead, putting an end to four years of research and preparation. The schemes would have generated 2,000 construction jobs at Drax and 100 permanent positions, and a further 600 jobs at Peterhead. You could argue that with last week’s re-announcement of the closure of coal-fired power stations, carbon capture and storage is no longer needed. However the 25 gas fired power stations which they are planning to build will all emit greenhouse gases. Clearly they will now be emitted into the atmosphere without any form of abatement.


Going back to UCG.
Underground Coal Gasification is not the same as fracking, says Prof Younger although he believes that fracking is not as dangerous as some would claim. In his view, fracking in the United States has been carried out by unqualified cowboys, so no wonder there have been spills, escapes and pollution. If underground gasification is carried out by people with mining skills or people skilled in exploiting the oil and gas in the North Sea it can be carried out safely. After all, coal mines stretched miles out underneath the North Sea with never a leak. UGC and geothermal developments need to be done while these skills are still around, before these experts retire. Does he think it will happen? Sadly not. There will be no incentive until the population at large realises that energy and food and medicines and plastics are getting more expensive and demands that engineers find a solution. By then the only alternative will probably be to buy the technology and skills - technology invented in the UK – from the Chinese.

 The problem with unconventional energy, as with all other forms of renewable energy, is that oil is currently so cheap that it is difficult to be cost competitive, although on-shore wind is pretty close. For the moment. 

A Ray of Sunshine (lots, actually)
Meanwhile, the BBC, Daily Mail and many others report on the new solar plant about to open in Morocco. When it is complete it will provide enough power for a million people, 20 hours a day. Yes, even at night. The difference is that this is not a solar PV array. There are no panels which produce electricity when the sun shines on them. Instead there are banks of computer-controlled mirrors which track the sun and focus its rays on a heat exchanger. This transfers heat to molten salt, which in turn is hot enough to produce steam to drive a conventional steam-turbine generating set. The salt holds its heat well after dark. 
It is part of Morocco's pledge to get 42% of its electricity from renewables by 2020. The UN has praised Morocco for the level of its ambition. The UK on the other hand, a much richer country, is aiming for 30% by the same date. Of course the Moroccans don’t have George Osborne.

The Guardian explains how the whole of Europe could run on renewables, given the right distribution infrastructure. We could share geothermal power from Iceland, hydropower from Sweden, wind power from the UK and solar power from Spain. Where there’s a will there’s a way! No will, not enough vision, at the moment, unfortunately.

More Oil
If you were listening to the sustainable futures show in January you may remember that I asked you to predict the price of oil in January 2016. The oil price fell dramatically from over $100 a barrel in mid 2014 to only $47 by the start of this year. My prediction for January 2016 was $65. Today, 25th November, it’s $42, which doesn’t look good for me, or for renewables. OPEC warned this week that the price could spike. They said that they were not prepared to limit production raise prices unless other producers did the same. Their object was to maintain their market share. However the Saudi Oil minister warned that reduced investment as a result of the low price could lead to a supply shortfall which could drive up prices very quickly. According to the International Energy Agency the world currently holds stocks of oil equivalent to nearly 300 days’ net imports. This will be a buffer, but how effective it is depends on how quickly the industry can bring new supplies on stream, or - and this is surely preferable - how quickly we can we can find substitutes.

COP21
I’ve not mentioned COP21. It starts next week. Ban Ki Moon says that in the nine years that he has been Secretary-General of the United Nations he has seen first hand the consequences of climate change. He has seen the effects on the developing world and the likely effects on his grandchildren and future generations. 
“As the head of the United Nations,” he says, “I have prioritised climate change because no country can meet this challenge alone. Climate change carries no passport; emissions released anywhere contribute to the problem everywhere. Economic stability and the security of nations are under threat. Only through the UN can we respond collectively to this global issue.”

Mass demonstrations urging world leaders to come up with binding and effective solutions have been planned for months. Unsurprisingly, the French authorities have said that they cannot guarantee the safety of marchers after this month’s attacks. Indoor meetings can go ahead, but the march in Paris planned for this Sunday 29th November cannot. There will be marches in other capitals and major cities all round the world. A march is planned in Paris on 12 December to mark the end of the conference. We'll have to see whether that goes ahead or not. Apart from the marches, the world is on the threshold of something very big.

This is Anthony Day and that was another episode of the sustainable futures show. Thanks for listening. There is so much going on that again I have had to hold things over. Next time of course we will be in the middle of COP 21 the Paris climate conference and I shall certainly be monitoring that as it unfolds. That will dominate future episodes. It's all about sustainability. It’s about climate change, and energy and food and population and as you have seen in this episode, it’s about water and other scarce resources as well. The world is changing and change is affecting business as never before. It means you need to plan. You need to plan more than ever. If you're not sure how these things will affect your business, if you'd like to have a general chat on what's happening and how it may change your world, your market, your supply chain, give me a call. I’m Anthony Day and my number is 07803 616877 in the UK. Give me a call and let's talk. In any case I hope you'll be listening to next week’s Sustainable Futures Report.


 I'm Anthony Day and that's it for another week.

Wednesday, May 28, 2014

Energy and the Bubble Economy


On 20th May the Yorkshire Chapter of CASSE, Centre for the Advancement of the Steady-State Economy, presented this event at Leeds University Business School. I expected one session but there were two separate presentations.
Energy

Tiago Domingos of the University of Lisbon took the first module: “Can energy use and economic growth be decoupled?” Green growth is possible by reducing the energy/GDP ratio, and to do that we need to decarbonise the energy system. This proved to be a technical talk; knowledge of thermodynamics a distinct advantage. Apparently energy cannot be destroyed and in any energy transfer there are always losses. This is demonstrated by our present electricity generation process, where around 60% of primary energy is wasted in generation and transmission and only 20% of what’s left (Final Energy) is Useful Energy. The rest is dissipated as heat in the appliance. He claimed that an output of 0.02kWh needs an input of 25kWh, which seems to be overstating the case a bit, but even a loss of 90% is bad enough. We pay for final energy - and all the primary energy that goes into it - and waste most of it in inefficient appliances.

We now moved on to the thermodynamics bit and started talking about exergy. I hadn’t heard of it before, but this is what Wikipedia says:   

“In thermodynamics, the exergy of a system is the maximum useful work possible during a process that brings the system into equilibrium with a heat reservoir.[1] When the surroundings are the reservoir, exergy is the potential of a system to cause a change as it achieves equilibrium with its environment. Exergy is the energy that is available to be used. After the system and surroundings reach equilibrium, the exergy is zero.”

The professor then went on to propose that we should study exergy rather than energy, and gave examples of sources of exergy: electricity, coal, gas, biomass, oil, food. (Note that electricity is a source of exergy, but of course not of energy.) He stated that the important ratio is not energy/GDP but Useful Energy/GDP. There followed an analysis of energy statistics for Portugal since 1850 when the economy was agricultural, through industrialisation from 1920 and onwards. The Final Energy/GDP ratio dropped sharply and plateau’d from 1960. Useful Work/GDP was at the same level as 1850, although primary energy consumption went up.

Domingos quoted the economist, Nicholas Kaldor, who said that in the long term the wages/interest, interest/capital, capital/GDP and Useful Work/GDP ratios were constant in most economies. There are also thermodynamic limits to the efficiencies of transforming primary to final energy and final to useful energy. The whole thing seems to lead me to the conclusion that there is very little scope for decoupling energy from economic growth. What hope for growth? Having said that, surely it all comes down to efficiencies. And while electricity generation from coal, gas, nuclear and even biomass can have losses of as much as 70%, the losses in generation from renewables are less than 1%.
The Bubble Economy

Our second speaker was Robert Ayres (from INSEAD in France) who will shortly publish "The Bubble Economy: Is There a Sustainable Way Forward?”. 

This was a very different presentation, and referred to Tulip Mania, the South Sea Bubble, the Trust Bust, the Dot-com Crash and the Sub-prime Disaster, among many others which litter history. Apparently there is a plausible story and investors start to pile in. Rumour builds on rumour, possibly helped along, until every man in the street sees a golden opportunity and mortgages his house to buy in. Canny investors get out at the top, confidence evaporates, prices crash and small investors lose their houses. Ayres predicts another bubble, this time involving fracking. Presumably that will happen in the US. After this week’s report from the UK Geological Survey few people in this country will surely invest!

Since 2008 we have seen pressures in the economy from climate change and the end of cheap oil, leading to inequalities and a slow recovery. In 2008 the banking system was under such extreme stress that governments had no choice but to rescue it. Household net worth collapsed and the middle classes have still not yet recovered. Oil price rises are inevitable because the rate of new discovery of oil is not keeping up with production. Saudi Arabia continues to be a major global oil producer, but its recoverable reserves remain, and have remained constant since 1988. (This is apparently justified by improving extraction techniques.) The oil price affects the global economy, but Ayres claims that it is only recently that the IMF has included the price of energy in its models. We need to decarbonise our energy and this is becoming more achievable as the average cost of onshore wind has been falling annually by 14%. The price of solar PV is falling faster; not yet to grid parity, but arguably coal generation benefits from hidden subsidies in that it does not pay the true cost of pollution. The costs of renewables and hydrocarbons are reaching a crossover point as new technologies, experience and economies of scale drive down renewable costs. Could we create a renewables bubble? Ayres told us that there are substantial reserves held by US corporates in overseas banks and doing nothing. Let’s not have a bubble, but let’s have some solid investment.

The future growth paradigm will be based on energy efficiency, not demand.
Questions

Questions came thick and fast and this a summary of what I picked up. 

Why will energy costs rise? asked a former Shell executive. Because Saudi is running out and the projected reserves in the US have been overstated and we are using it faster than we’re finding new reserves. Well, when he was at Shell they tried predicting the oil price and got it totally wrong….

Can we really substitute electricity for oil? Yes, but it is difficult and time-consuming which is why the price of oil matters…Is 30% the maximum share of energy that the UK can source from renewables? I would have thought that was pessimistic, myself.

If the future is efficiency, what about user behaviour? The rebound effect means consumers can spend the same and use more. Prices must be controlled by governments to prevent this. A green levy could keep expenditure at constant levels and raise a fund for green research and investment.

Will lower-quality reserves demand more energy? Energy in for energy out is a problem with fracking...Timescales for decarbonising the economy are a concern. There are big opportunities for improving efficiency - notably transport and home heating (cars are still very inefficient) - but if we are serious about our 2050 targets we have a serious problem. Current policies - and politicians - do not recognise the extent of the challenge.

Education is lacking in high places.


And my conclusion? As always, spread the word. Make people aware that business as usual is not an option. Make them aware that big business has generally taken all this on board, but small business and the consumer need to follow on. It’s not about a lower standard of living, it’s about doing things differently and more efficiently. It’s about not sacrificing the long term for the sake of the short term. 

Please tell any politicians you meet.

Wednesday, June 19, 2013

Sustainable Future for Tourism: How Businesses are Changing

This is an article by Sam Marquit. "I am an entrepreneurial independent contractor and home renovation/remodeling expert in New York. I’ve made it a point to share with my readers a day in the life of sustainable building. Forecasting the possible application and implementation of new green building materials and technologies is just one small part of my effort to reduce everyone’s carbon footprint."




When I started working as an independent contractor, my priority wasn't on green building. Now as a commercial contractor, I've really started to develop a knack for sustainable building and green materials. In today's world, there is so much that can be done for the planet, and yet many businesses are only worried about LEED certification. While this is a necessary part of becoming more eco-friendly, there are a variety of organizations and businesses in the tourism industry that are doing something more.

In the United States, consumers, investors and business owners have a lot of economic power. If you think about the places you choose to visit and the businesses you frequently support, then you can see how businesses have a certain appeal because of what they offer.  GreenAmerica.org works to help businesses that are really moving forward with eco-friendly practices to gain notice while also pointing out those businesses that engage in corporate irresponsibility. In addition, the organization helps to build sustainable communities all over the world.

Being one of the biggest hotel chains, you'd expect that the Marriott hotels have a number of eco-friendly policies. While they do a few things and use recyclable materials, it was their recent purchase of 24 million recyclable and biodegradable key cards that gained my notice. Most key cards are made from plastic. However, The Marriott now only uses corn by-product key cards, effectively saving about 66 tons of plastic waste from going into a landfill.

There are some hotels out there that have taken a serious look at their policies and made changes to become more sustainable and eco-friendly. The Las Vegas Palazzo Hotel and Resort is one of them. This hotel has worked tirelessly to change its policies and facilities, which earned them the award of "TheMost Eco-Friendly Hotel in America." The Palazzo has a solar heat system, waste reuse program and water recycling process in order to save on resources and become more sustainable.

It's so inspiring to see so many businesses making changes and really promoting this culture of conservation. This is especially evident with the new green Las Vegas hotels continuing to be built. It will be essential to continue this trend in order to make a change for the future of our planet.
Find out more at fmarquitv.tumblr.com


Tuesday, June 04, 2013

Energy Bill - who pays?


The Energy Bill makes its way through Parliament with an important vote later today. Why important? Because there is going to be a revolt. 

Just announced - the government defeated the amendment which means there will be NO decarbonisation target - unless the Lords overrules.

The government does not want to include a carbon target for electricity generation. It wants to defer a decision until after the next election. Why is this a problem - and why the revolt? The carbon target will define how clean and efficient our electricity generation must be. In turn that will define how much of the supply must come from renewables, from nuclear and it will determine how urgently (or not) the industry should be cleaning up coal and gas generation with Carbon Capture and Storage (CCS). In energy policy the government is gaining a reputation for dithering. The Feed-In tariff, revised down well before the promised deadline, is a key example. The market for solar panels collapsed overnight and more than a few installers went out of business. 

Carbon targets are as important as guaranteed prices for energy generators. If they are planning plants which will take years to build and will operate for decades they need to be sure that tariffs and taxes - and carbon targets - can be relied upon. Otherwise they will reject the risks and go and look for business elsewhere.

We are on the threshold of a new phase of generating plant. The chancellor is committed to a new dash for gas, powered by gas extracted by fracking from deep beneath Lancashire. Announcements made yesterday claim there could be 7 years’ supply down there. Could be. Nothing is proven yet. Well, we can still get gas from Norway, the Middle East and in time from Russia. Leaving aside the energy security arguments, (would you prefer to rely on gas and coal from thousands of miles away, or to use wind, solar and tides freely available at home?), if the generators go ahead anyway and build new plant, what happens in 2016 when the targets are finally set?

Either we bring in standards which will make a sensible contribution to reducing the UK’s emissions, (and maybe bankrupt generators who can’t meet the new standards), or we decide that all the controls we need fit nicely with exactly how these new power stations operate. 

We have a declared target to reduce the UK’s carbon emissions by 80% by 2050. 

But that’s still a very long way off, and it won’t be this government’s concern!

Monday, February 25, 2013

Sustainable Real Estate


At a recent meeting of GACSO - the Global Association of Corporate Sustainability Officers - Lynn Cook, Real Estate Associate at DWF, explained how legislation is driving sustainability in the property sector. The key legislation is the Energy Act 2011. This comes into effect in 2018 and provides that any property with less than an E rating may not be let. 25% of offices are currently below this efficiency rating (and 45% are currently below D).

The legislation applies to existing leases, not just renewals or new leases. Landlords will find pressure from mortgage lenders and in turn will put pressure on rents in order to recover the costs of improvements. There may be some help from the Green Deal, launched in January. This is a scheme based on the “pay as you save” principle. Loans are advanced for the cost of approved energy-saving work and repayments are recovered via the electricity bill. The Golden Rule is that energy savings should be greater than or equal to the repayments. So far uptake of the scheme has been slow. The problem for the commercial sector is that the landlord’s and the tenant’s interests are not necessarily aligned. The landlord makes the improvements but the tenant is often the bill-payer.

The government is still supporting renewable energy. The feed-in tariff (FIT) for solar energy is still a good deal, even after the government’s backtracking on the rate of subsidy, which sent a number of solar installers to the wall. The Renewable Heat Incentive, covering biomass, heat pumps and solar thermal, has been much more carefully thought through and will now make these systems cost-effective in many more situations.

Now is the time for landlords to survey their current stock and determine what needs to be done to bring it up to E or above. Or maybe just to dispose of it. Introducing so-called “green leases” putting more of the obligation for energy efficiency on the tenant, is another way of reducing the landlord’s burden.

For the future, it is difficult to tell whether efficient buildings will have an enhanced capital value - or whether leaky buildings will plummet in value as 2018 approaches. Maybe there will be a mad refurbishment panic at the end of 2017. The government is not expected to move from the 2018 deadline. After the FIT disaster it is much more organised.

Thursday, July 12, 2007

Spot the Difference

The Great Global Warming Swindle, the Channel Four programme which claimed that carbon dioxide was not the cause of global warming, suggested that sunspots and solar activity were major force. The theory is that solar winds drive away the particles that cause clouds to form and the reduced cloud cover means that the surface of the earth warms. In fact, while this is a respected theory, the actual observations show that there was little solar wind at the time the global warming was observed.

Dr Michael Lockwood of the Rutherford Appleton Laboratories in Oxford has published a paper in the Proceedings of the Royal Society complaining that the programme was selective in the use of his research findings. The graphs that were displayed were cut short at the point at which global warming and solar activity clearly diverged. As Dr Lockwood said, the sceptics were “..taking perfectly good science and bringing it into disrepute.”

It looks as though man-made carbon dioxide is still firmly in the frame as a major cause of global warming.

Public opinion, however, still wants to believe that everything can go on as normal.

Friday, May 25, 2007

Have we got the energy?

I received a post today asking why I thought that renewable energy could only ever account for about 20% of our total requirements. Surely if we cut our total energy use that proportion could be greater? I also said that microgeneration could actually increae co2 emissions. Why?

Here's my answer:

"I suggest you read "Energy beyond oil" by Paul Mobbs which is an excellent review of our energy options - and challenges. It explains all the technical issues in detail but in a very readable form.

Yes, I agree we can go a long way towards reducing our energy demand, but in spite of those people who are already cutting down, UK energy demand continues to grow. We will have to make life-changing decisions to really have an effect. The problem with renewables - wind, wave, tide and solar - is that they are intermittent and cannot be controlled to match the fluctuating demand from the grid. Indeed, if they account for a major proportion of electricity production they provide great difficulties for the grid controllers who have to deal not only with fluctuating demand but fluctuating supply as well. If they can't balance supply and demand the risk is that the grid becomes unstable with cascading failures and power cuts. Biomass and biogas are renewables which can provide power 24/7 and are controllable, but the problem here is that growing biofuel crops competes for land where food is grown (or in some cases where rain forest grows) and the planting, harvesting, processing and transporting of biofuel all takes energy so biofuel is not carbon neutral and some studies have suggested that the process absorbs more energy than it yields.

Microgeneration? Microgeneration of electricity comes from wind or solar. Micro-hydro is possible, but very, very few people will have a suitable water source. In all cases we must look at the total life cycle, which includes the energy used and CO2 emitted in the manufacture, installation and disposal of the turbine or solar panel. Unless the unit saves more CO2 during its useful life than is emitted at these stages, it is actually contributing to CO2, not saving it. A wind turbine needs a steady flow at about 10-12 metres per second. If you go to the DTI wind speed database you will find the average speed for your postcode. The average is only about 6mps. A turbine running at 6mps produces a lot less than half the electricity of a unit at 12mps - it is not a simple straight-line relationship. The other problem - which rules turbines out for most urban locations - is turbulence. Trees, roofs, chimneys and lamposts all cause turbulence which means the airflow - and direction - is constantly changing. The turbine may overspeed, which will damage it, or run too slowly to produce any power. If it is swinging backwards and forwards in the gusts it will not produce a useful output. Once you have the electricity you either have to convert it to ac and transform it to mains voltage (a process absorbing energy) or use it to charge a battery. In the second case you have the additional cost of the battery and of your low-voltage dc lighting circuit or whatever you are using, together with the CO2 emissions involved in manufacturing this kit. In the first case you can sell electricity back to the grid if you aren't using it, but the bit left after transformation and rectification will be subject to further losses in the grid and you will be paid only 4p per unit compared with the 10 or 15p it will cost you to buy it back.

Solar panels have the same problems of rectification and transformation if you go for mains voltage and the same extra costs of batteries etc if you go for low voltage dc. I believe the disposal of solar panels is problematical because of the heavy metals and rare elements they contain. In fact the increasing scarcity of such substances will probably severely limit the availability of solar panels.

Sorry this is such a long answer. Hope it makes sense!"