Predicted voltage unbalance

Denis Howroyd made this Environmental Information Regulations request to National Grid plc
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The request was refused by National Grid plc.

Dear National Grid plc,
Please state the highest 3-phase voltage unbalance predicted to be caused by the HS2 London to Birmingham route,

Yours faithfully,
Denis Howroyd

Bailey2, Michael, National Grid plc

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Dear Denis,


Thank you for your request for information under the Environmental
Information Regulations “EIR” 2004.


In response to your request, please see the attached letter setting out
our response.


Should you require anything further, please do not hesitate to, via the
contact details within the letter.


Kind Regards,



Michael Bailey

EIR Officer

Sustainability and Climate Change







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