July 26, 2017 Disclaimer: Please read.
Statements and opinions expressed in articles are those of the authors, not Truthdig. Truthdig takes no responsibility for such statements or opinions.
European Trains Go the Renewable Route
Posted on Feb 13, 2017
By Alex Kirby / Climate News Network
Square, Story page, 2nd paragraph, mobile
In the Netherlands, every electric train running on the Dutch railway network has relied entirely on wind energy since 1 January. The network, NS Dutch Railways, is using an energy company’s turbines to generate the energy needed to power its entire electric fleet.
NS uses 1.2bn kWh of wind-generated electricity a year, roughly equivalent to the total annual domestic consumption of every household in the Dutch city of Amsterdam. The wind-powered trains carry 600,000 passengers a day.
Square, Site wide, Desktop
Square, Site wide, Mobile
The contract it signed with the company supplying its wind energy, Eneco, forbids the sourcing of electricity from the existing energy market, so only new-build wind farms can be used. The energy NS is using comes from wind farms in Belgium and Scandinavia as well in the Netherlands, and also from some offshore sites.
Critics of wind power say it is an unreliable source because it blows intermittently and so cannot guarantee round-the-clock availability. But Eneco is confident it has enough wind farms to ensure the power supply to NS will be able to keep the trains running.
In the UK, a university and a climate change charity have joined forces to exploit renewables for railways in a novel and entirely renewable way—straight to the tracks on which the trains run.
Imperial College London is working with the 10:10 group in the Renewable Traction Power project, in which university researchers will look at connecting solar panels directly to the lines that provide power to trains. This would bypass the electricity grid in order to manage power demand from the trains more efficiently.
A rail tunnel in Belgium has already been fitted with solar panels that provide current to passing trains. But the university says the UK researchers will be the first in the world to test the “completely unique” idea of trackside generation, which would have a “wide impact with commercial applications on electrified rail networks all over the world”.
“It would also open up thousands of new sites to small- and medium-scale renewable developments by removing the need to connect to the grid,” Imperial says.
In many rural areas of Britain the electricity grid has reached its limit for both integrating distributed energy generation and supplying power to train firms.
“What is particularly galling is that peak generation from solar and peak demand from the trains more or less match, but we can’t connect the two,” says10:10’s Leo Murray, who is leading the project. “I actually believe this represents a real opportunity for some innovative thinking.”
Initially, the project will look at the feasibility of converting third-rail systems, which, instead of using overhead wiring, supply electricity to the trains through an electrified rail just above the ground and are used on approximately one-third of the UK’s tracks.
The new approach could exploit reserves of energy that currently go to waste. “Many railway lines run through areas with great potential for solar power but where existing electricity networks are hard to access,” says Professor Tim Green, director of Energy Futures Lab at Imperial.
Alex Kirby is a former BBC journalist and environment correspondent. He now works with universities, charities and international agencies to improve their media skills, and with journalists in the developing world keen to specialise in environmental reporting.
Banner, End of Story, Desktop
Banner, End of Story, Mobile
Watch a selection of Wibbitz videos based on Truthdig stories:
New and Improved Comments
Right Skyscraper, Site Wide
Right Internal Skyscraper, Site wide