Archive for the ‘Uncategorized’ category

Get the bicycles out of the bus lanes

June 8th, 2009

So everyone is all gung-ho for getting more bicycles on the road. They want less emissions and more exercise and of course to add some European style to the city. I support this, just don’t put the bicycles in the bus lane. You have the largest vehicle on the road sharing the same space with humans on a pair of wheels, something will go wrong. The reason I decided to write about this is not because I am concerned for the safety of the people (I am, but that’s not important), it’s because it took me forever to get to the office today.

The reason: A cyclist in the bus lane. Who thought it would be a good idea for the enviornment and the world in general to have a large bus filled with some 70 people wait on a cyclist? Someone with time should really try and multipl out the cost of having a bus go very slowly because of a single slow cyclist. The bus now has to accelerate/deccelrate more, is cruising at lower efficiencies and is taking more time and so more emissions in general. Not to mention that it is holding up other busses behind it.

So yes, bicycles are good. Let’s have more, but let’s have a cycle lane that’s not shared with anyone else. Get the bicycles out of the bus lane so that public transport can actually save emissions and in the mean time reduce the chances of accident. We have all seen how close bus drivers like to drive to cyclists, just to get their frustration out. So if you are a cyclist the please please, if you must use the bus lane, make sure you cycle quickly. The enviornment depends on you.

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Why am I stuck in traffic ?

May 27th, 2009

I recently received an email from Peter Green the owner of the website www.frixo.com pointing out his website to me as it might be useful to some of the users. Given that most of my readers live in the UK I thought it would be a good idea.

While I suspect that there are many other websites reporting traffic incidents, the key concept to take away here is that communication is important. If people know what is happening on the roads they are likely to take routes that would make them go faster. This would help reduce the pressures on the road network and decrease the effects of bottlenecks. Knowledge is power and there could be a lot of money and time saved by simply knowing whether the queue you are stuck in is becuase someone had a burst tyre and is likely to get off the road soon, or because there was a major accident and you are better off abandoning your vehicle and walking home.

Even if you fail to find a route to evade whatever is causing the traffic problems, you might be able to make a phonecall to avoid other negative effects of not arriving on time. You should be able to do all that while sitting in your car, since most phones and service providers allow you to access the internet at low cost now. It is quite difficult to put a monetary value on the cost effectiveness of such information systems, especially when intangible things are involved. How much would you value avoiding the strain on your relationship that could have been caused by arriving late to your romantic dinner?

The end result is that people’s lives are made easier. So the next time you are using the roads, check the traffic reports first before you get yourself stuck without any clue why this is happening to you.

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Racing Green Endurance and the Zero Race

May 26th, 2009

Going around the world is nothing new, people have been doing it in every way and every direction. Sailing, flying, and driving are just a few ways to see the globe. Some are obsessed with going as fast as they can so that their name can be put in some book somewhere where no one would ever read or care about them. There are others however who do it for the journey and some to prove a point.

Lois Palmer is apparently the first person to drive around the world in a solar car. He gave a presentation at Imperial College London (click here) where he described his feat and told everyone about zero race (click here). Zero race is well you guessed it, a race, and yes a race of electric cars (not solar, that was the twist) around the world. The electricity that the cars use will be renewable so that it can fit into the whole green theme fashion. The point here being made is that electric cars are ready so let’s move to them and cut the whole debate nonsense.

Enter Racing Green Endurance (this time click here), part of the imperial racing green project, except that they are not really about racing but more about endurance. Endurance should come in handy if they want to stay alive in the race around the world. Of course that is if they manage to find enough sponsors. So if you are cash-rich and you actually care about this kind of stuff, you should contact them. I don’t think they would say no to some money at the moment. So if enough teams manage to find the cash, the zero race should be going ahead and it will be interesting to see whether it gets any attention at all.

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Green Roofs

May 17th, 2009

Who said that cities have to be dull, grey and boring? And no I am not implying we should paint all the buildings in bright yellow and pink, but we can make our rooftops green. I read an article about this in National Geographic and I think the idea seems feasible and useful.

A large surface area of a city is normally covered by buildings. Thos buildings we tend to think about them as structures that replace whatever else was there on this land. We remove forests, grassland and agricultural land in order to put a building instead. But what happens if those buildings mushroomed out of the ground instead? They just popped up from the depths of the earth. What you would expect is to find that piece of grassland still on the roof. And that is what we should aim to recreate.

Go to the roof of your buiding and plant some green, you could be planting your own vegtables as well, not just grass and flowers and helping reduce the amounts of land being converted from their natural state to agricultural land. Add to that the benefit of having a garden in every building and you will suddenly find trouble in giving this some monetary value when you are decining whether it’s worth it or not.

One of the problems facing green roofs is rain. While rain is free water for the plants, the soil can get pretty heavy as it soaks up the water. So you don’t want your roof falling down, especially when it is raining. Green roofs have come a long way and now they tend to use a number of layers in order avoid this problem. Instead of using traditional soil, soil composites are used. There are also storage and drainage layers so that in dry seasons the water is stored for the plants and when the water is in excess it just overflows the storage and drains away.

So now that green roofs are becoming more and more feasible, we should expect more people to adopt them. Probably start with institutions and evetually spread to homes. So what are you waiting for? Start looking into how you can make your roof green today.

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Vélib’

May 17th, 2009

So it’s been some time, you wait for a couple of months and then they all come together, from one reason to another I haven’t been posting anything for a long time now. But it seems like the rain is gone and the sky is blue, and it’s time to write again.

So I had some nice trips over the holidays including Paris. While most people like to see the museums and walk along the river, enjoy the art galleries etc.. I don’t. Touristy stuff is for tourist and as clihe as it sounds, I don’t like to be a tourist. When I visit a city, I want to understand it, I want to know what it’s like to live there, which supermarkets do you go to? Which areas are known for what? what underground passes are on offer? How fast are the internet speed connections available? How are the relationships between parisiens? How do you treat a stranger? How do you treat a friend? Where are the social boundaries? What values does this city uphold? Now, I have noticed that it seems like I am turning this blog post into talking about me, so I’ll cut it short and start talking about Paris. Actually a very small aspect of Paris, its bicycles.

At first sight, you might think that loads of people in Paris have the same type of bicycle, it’s not particularly beautiful and it doesn’t look cheap either. And then you find a large number parked next to each other by the sidewalk. No it’s not a showroom, it is a velib station. You pay a deposit, get a subscription, get a card, use it to unlock the bicycle and then drop it off at any other station. A cheap rate per hour and that’s all. Simple.

Velib Station in Paris

Sounds pretty good, everyone has easy access to a bicycle, no need to buy one, no need to find a place to store it, no need to worry about it being stolen, and best of all if you ride a bike to work and it rains, just take public transport back without worrying about bringing your cycle with you on the bus.

So less emissions, less traffic and more excercise. Why is this not spreading to other cities I don’t know.

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Can Energy-Service Companies (ESCo) actually work?

February 9th, 2009

Speaking with some friends about the whole concept of transforming the energy utilities into energy service companies, or in fact having new companies acting as energy service companies got me thinking. Is there really a business opportunity for ESCos? A quick look at the wikipedia article shows that those type of companies had boomed in the 70’s, when energy was getting expensive. So of course when everything is going well no one has time to deal with this sort of stuff. But then when the money coming out starts going up and the money coming in starts going down you start thinking again.

So can it really work? You go to a house, you have a big smile on your face and you say Good Evening, I would like to take care of your energy consumption please. I will make sure you get your washing done, your house heated and your lights lit, and you don’t have to worry about your electricity metre. All you have to do is just pay me a bit less than what you already pay now. Oh and don’t forget, you will be helping save the planet. I wonder how many times you would get the door shut in your face. “Honey! Some guy wanted to control our heater and tell us when to wash our clothes” will probably be said straight after.

Changing people to accept energy service companies will require a lot of time and effort. Setting a precedent is also going to b e crucial. People will not believe you because you will be making money out of it, and today anyone will say anything to make more money. So you will rely on word of mouth to push your business around and get more people signed up to your services.

People don’t like change. It’s difficult to change and it’s such a hassle. We have always done it this way, what’s wrong with it now!!!! Why do I have to go through all that. So if you want to really make a difference you have to be a trusted community member, someone who people will actually listen to. If you are not then find someone who is, talk to them and explain to them. If they believe you then you are half way there.

Changing the way people think about energy is not going to be easy, but someone out there has to do it. Good Luck!

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Decarbonising the electricity system is a piece of cake

February 4th, 2009

Interesting ideas were bounced off today in one of our lectures. Although we all know those ideas, we sometimes lose focus of where the problem really lies when we are looking at decarbonising the electricity system. NASA has put a man on the moon about 40 years ago and compared to that decarbonising the electricity system is a piece of cake. If we really want we can just build loads of renewables and it’s done. The problem is the cost.

I can hear you already, well of course the cost is a problem, we all know that. And yes we do, but we must remember that. You hear a lot of discussions on how difficult it is to decarbonise the system and you think if only we can find this new breakthrough technology. The technology of course is there, all our efforts are concentrated on making it cheap.

There is therefore much more work to be expended on financial and policy issues then technological issues. Spending on R&D might be a good idea but we must start taking action and start learning by doing. If you spend on R&D you do increase your chances of finding that cheap efficient technology but is you spend on demo projects, you get something at the end plus the actual output of the project.

Learning by doing has always been a cornerstone of human advancement. The cliche example of edison and his light bulb applies here. At the end of the day if governments really attached a high value to the enviornmental issue as they do to banks, we can just pay our way out of it. So in risk of repeating myself, focus on the cost and learn by doing.

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CARMA – Which power plant is doing what to our climate?

February 1st, 2009

I was looking for information on the Australian electricity markets when I stumbled upon www.carma.org . This website will provide you with very useful data on how much electricity is generated and how much carbon is emitted for over 50,000 power plants across the world. It also comes handy that you can download the data in a .csv format and then manipulate it in Excel or other spreadsheet software that you might like.

CARMA, which stands for carbon monitoring for action, is the product of the efforts of the Washington DC based think tank Centre for Global Development. A very good effort indeed.

However the blog post would not be complete without pointing out some shortcomings of the data, and suggestions on how to improve it. The most striking piece of data that is missing is the type of power plant. While you could sometimes guess from the name of the power plant or the company running it, it is not always easy to say and it is difficult to manipulate the data using this criteria.

Another important aspect to point out is that some of this data is estimated based on models. To quote their website

“For non-reporting plants, CARMA estimates emissions using a statistical model that has been fitted to data for thousands of reporting plants in the U.S., Canada, the EU, and India. The model utilizes detailed data on plant-level engineering and fuel specifications.”

Does this not mean that they do have the data on what type of plant it is and which fuel it uses, not to mention the detailed data on plant-level engineering? It would be nice if we can also see this data. The more data the better as long as we can easily process it. We should also take the estimated data with a pinch of salt. There is an underlying assumption here that all power plants in the world are the same and operated in the same manners. The model has already decided that US, Canada, EU and India are representative of the whole world. Using the data to try and find abnormalities in a non-reporting country is therefore futile as the data has been estimated assuming normality. We would go in circles.

Overall the data comes in very handy and is potentially very useful, however it would be nice to see less modelling and more hard data. The efforts that went into this must have been enormous, and they are appreciated.

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The three lane urban road transport system

January 28th, 2009

In my previous post I suggested at the end a three lane road transport system. One lane for public transport, one lane for electric vehicles (EV) and another lane for bicycles. Let’s see how this will work.

Bicycles are the most efficient mode of transport known to man. It is the next step up from walking. All able members of society, who want the freedom of going anywhere whenever they feel like it should use a bicycle. You should normally average above the 12 mph and thus would be arriving at your destination in the same time, if not faster. Parking your bike is also easier. The parking of bicycles would also take less space and time for the same amount of people than cars. Your input fuel is food, and your output emissions are breath. Brilliant invention.

Cycling also has some health effects. In general, cycling is good for you, as a form of exercise. It should make your heart muscle stronger; improve your circulation, etc… If most of society is running around on a bike, then we should expect to see less expenditure on health. There are issues with elongated cycling times for men (see here), however this can be solved by redesigning the seat.

Now, for those who are not able to cycle, or those who want to go somewhere in a fancy suit or dress, we have the EV. As discussed before they do have a number of advantages in an urban settings over your average fossil fuel burning gas guzzling box on wheels. So now we come to the issue of where to get your car’s electricity from. While green electricity is nice, once the carbon trading schemes have been set up, there is no need to worry. If you get your electricity from a coal power plant then you can be sure that the price of carbon has been passed along to you. So you have reimbursed society for the damage your electricity has cost, and it is now up to the governments to reduce the caps and make carbon more expensive. This means that more people will start moving to greener electricity generation, but this is all beyond your control. So this is not an issue you will have to deal with in your everyday life.

Public transport should also get a lane. In London it pretty much already has one. So if you are not able to cycle, and you are not able to buy an EV, or you are not from this city and don’t have anything to use here., if you don’t want to park your bike, or if you are wearing a fancy suit/dress and can’t afford an electric cab, or the many other ifs that exist in life, you will need public transport. It will provide a reliable method for anyone to be able to go where they want. There is no need discussing the merits of public transport. The idea then would be to make public transport greener. Already you are using economies of scale, when sharing your bus with a million other people. But there is still room for more, electric buses, fuel cells, etc… and work on that is already on its way.

We might have to compromise and let in some fuel burning trucks at night to get cargo in the city, until we find a greener way. But even if we start with many compromises, it’s better than nothing. With time we can then iron them out until we have our clean road transport system.

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Travelling at a snail’s pace

January 26th, 2009

Cars are an amazing invention. They are mainly a combination of two inventions, the box and the wheel. Put a box on a set of wheels and voila you have a car. While it might not be practical to drive your car in a Flintstones style, with your legs popping out from under and pushing you through, sometimes it seems like that would be more efficient than what we did now. Your input will be biofuels and your carbon emissions is the CO2 in your breath.

Of course this arrangement will not allow you to go as fast as modern cars, but if you are in a city such as London, you might never need to.  A Transport for London report shows that the average traffic speed in the inner London area is between 11 and 12 miles per hour (17.5 – 19Km/hr). That is not particularly fast. We already know that internal combustion engines (car engines) are not terribly efficient, but they are even worse at low speeds.  Electric cars tend to have  flatter efficiency curve, that means they have the same efficiencies across the different speeds, and would thus serve quite well in a busy city situation.

What’s even more interesting about electric cars is that they have batteries, and a large number of cars will have a large number of batteries that can store a large amount of electricity. Now if we plug those in whenever we park them we have a large amount of electricity storage on hand to use in the grid. This means that in times of peak demand, instead of having a very expensive power plant start up just for that we can draw electricity from the parked cars. The car will make sure it does not give out a lot of electricity so that its owner can still go home. This should decrease the difference in demand on the grid between peak and minimum times, which means a lower planning margin, which means higher load factor, and which also means less money. (See comment on the Micro-CHP post).

Now why would I help the grid people with their problems and use up the lifetime of my battery? Because you would probably make some money out of it. You charge up at night, when electricity is cheap, and demand is low. Then you sell the electricity back during the day, when your car is parked and you are reading Dilbert cartoons at work.

Now aside from all the possible benefits of an electric car or electric vehicle (EV), here is a suggestion for Transport for London. The three lane system. One lane for public transport, one lane for electric vehicles and one lane for bicycles. Hmmm no normal cars there, exactly. This is the solution I came up with while day dreaming today, in the next post I will look for arguments why it could actually work.

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