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Tag Archives: infrastructure

London’s Hurst-Crayford power tunnel energised

London Power Tunnels Alice Delahunty Minister Shanks 604

National Grid has energised its 2.5km 275kV power tunnel between Hurst substation and Crayford, one of the transmission circuits in the 32.5km LPT2 route across south London. “The previous cables between Hurst and Crayford were reaching the end of their operational life, having been commissioned in 1967 and having served London reliably for decades,” according to National Grid, which explained: ...

Modelling grid effects of electric vehicle charging in the next decade

Stanford EV charging model

Researchers at Stanford University have modelled over-night home charging of electric vehicles and predict that it is not the correct strategy, for the Western US at least. Simulation is based on a model, revealed in March, for charging demand that can be applied to different human populations under different conditions. In a demonstration, they have now applied it to the ...

DC-DC converters for railway applications

Vicor-dc-dc-for-railways-

Vicor’s next generation of dc-dc converter modules operate across 43-154V for rail transport and infrastructure applications. For most versions maximum output power is 240W, despite the 36 x 23mm (‘3623’) footprint. The outputs are regulated and isolated, and efficiency is up to 93%. “Modern rail infrastructure requires a wide range of DC-DC converters to power a variety of new services ...

Huge Telecoms Revenues But Small Capex

The sheer scale of telecoms service revenues never ceases to amaze. Asian telecoms service revenue will grow by $94 billion or 29% from $229.7 billion in 2011 to reach $323.7 billion by 2016, according to AnalysisMason.

Fight looms over sharing broadband network infrastructure

How to share infrastructure is likely to become the hottest topic in rolling out next generation broadband access (NGA), especially in rural areas, it emerged at the NextGen10 conference in Birmingham this week. Simon Towler, head of the Department of Business, innovation & skills’ broadband programme, said it was an issue on which he had spent several years, and was ...

When FLO-TV Meets CatchupTV

Like watching a champion golfer miss a two foot putt, you get a frisson of schadenfreude when seeing a top-notch tech company screw up.