Transportation | Claverton Group

SUSTAINABLE LIGHT RAIL

By Prof. Lewis Lesley: Claverton Conference 24/26th October 2008

1.0 Definitions
Light rail is a passenger transport system using steel rails to support and guide electrically power vehicles, running on street with other traffic and on separate dedicated lines. Normally light rail is driven “on sight” without railway signaling, so it can share road space or road alignments, and mix safely with road vehicles.

Ideally light rail should enjoy 100% priority over other traffic, through dedicated lanes and the pre-emption of traffic lights. Sustainable light rail emits no CO2 in the operating cycle, using renewable generation. When attracted car trips are included, light rail reduces total CO2 emissions. It is also financially viable so not vulnerable to public spending squeezes. Consistent market research and experience over the last 50 years in Europe and North America shows that car commuters are willing to transfer some trips to rail-based public transport but not to buses. Typically light rail systems attract between 30 and 40% of their patronage from former car trips. Rapid transit bus systems attract less than 5% of trips from cars, less than the variability of traffic.

Uttlesford – the most CO2 per household in England – "100% renewable is possible" says Altechnica study.

Dr Derek Taylor, Altechnica and OU Open University Energy & Environment Research Unit

The Altechnica study on Renewable Energy potential in Uttlesford (commissioned by Uttlesford Futures) study shows that it would be potentially possible to ultimately obtain all of the household electricity, space & water heating needs and power personal cars from 100% renewable energy from within Uttlesford.

Uttlesford is the East of England District located in the North West corner of Essex that borders Cambridgeshire and Hertfordshire and includes Saffron Walden, Great Dunmow and Stansted Airport within its boundaries. – Prior to Uttlesford Futures commissioning the study, Uttlesford District had been reported as emitting the most CO2 per household in England.

This study showed that domestic heat provision, electricity and potentiall

2008 Claverton Energy Group Conference Papers Available

Those that have been forwarded in text format have been published as News Articles. Those in PowerPoint or PDF format have been uploaded to the website, and can be downloaded for reading at:

The Sahara Forest Project – A new source of fresh water, food and energy

The world is running short of fresh water. With agriculture accounting for some 70% of all water

used, the water shortage is closely linked to food production and economic development. The

provision of clean water is a pre-condition to life, health and economic development and the lack

of water in many parts of the world is the root cause of much suffering and poverty. Present

methods of supplying water in arid regions include: over-abstraction from ground reserves,

diverting water from other regions and energy-intensive desalination. None of these methods are

sustainable in the long term and inequitable distribution leads to conflict. To make matters

worse, global warming is tending to make dry areas drier and wet areas wetter. Since the 1980’s,

rainfall has increased in several large regions of the world, including eastern North and South

America and northern Europe, while drying has been observed in the Sahel, the Mediterranean,

southern Africa, Australia and parts of Asia.

Sustainable Light Rail -Professor Lewis Lesley

By Professor Lewis Lesley – John Moore’s University.

2008 Conference Paper Synopsis: In an increasingly urbanized world most personal journeys are made in towns and cities and are relatively short, in UK 75% under 8km long. In the developed world, the motorcar dominates these trips. Car drivers will however transfer some trips to rail. Electrically powered light rail (or tramways) is an economic means for satisfying many short urban trips. Light rail can be constructed with a minimum of urban disruption and when coupled with renewable generation is energy sustainable. It also has a negative carbon footprint, when diverted car trips are included.

Biomethane as a Vehicle Fuel – It’s the Vehicles, Stupid

By John Baldwin

2008 Conference Paper Synopsis:

1. Development of NGVs 2000 to 2008
2. 3rd generation NGVs launched in Q1 2009 – VW Passat on biomethane is the world’s best car in well to wheel CO2 terms
3. Potential biogas resource – The UK’s largest 3rd generation bio-fuel
4. Production of biomethane – Clean-up technologies and costs
5. Injection of biomethane into gas grids
6. EU Renewable Energy Directive
7. UK RTFO, ROCs and renewable heat support
8. Biomethane Eco-leadership projects
9. Conclusion – it’s the vehicles stupid

Desert Rose – Fresh Water & Forest Cover

Desert Rose – Fresh Water & Forest Cover
By Dr Richard Lawson

2008 Conference Paper Synopsis: Desert Rose is a conceptual approach to using two resources – sunlight and seawater – that coastal tropical areas have in abundance to supply two resources that are in short supply and dwindling – fresh water and forest cover. It suggests that once past a critical point, the growth in forest and water tend to become a self-propagating system. Energy costings relating to developing this concept are addressed.