High Speed 2 Railway Line
(asked on 29th January 2019) - View Source
Question to the Department for Transport:
To ask Her Majesty's Government what is the peak electric power demand for the operation of the planned number of trains per hour for HS2 phases 1, 2A and 2B meeting speeds and performance criteria that comply with the design specification.
The peak electric power demand for the operation of the planned number of trains per hour for HS2 phases 1, 2A and 2B is shown in the table below.
Feeder Station | Max 1 minute RMS (MVA) | Max 30 minute RMS (MVA) |
Ickenham | 149.1 | 131.8 |
Quainton | 179.1 | 167.1 |
Burton Green | 176.5 | 157.1 |
Maximum Phase 1. | 504.7 | 456 |
Newlands (Phase 2A) | 152.73 | 83.99 |
Hoo Green | 170.85 | 94.71 |
PH2 B AFTS 1 | 119.49 | 63.3 |
PH2 B AFTS 2 | 137.83 | 69.92 |
PH2 B AFTS 3 | 127.26 | 60.72 |
PH2 B AFTS 4 | 122.27 | 54.99 |
Maximum demand on Phase 2B. | 677.63 | 343.64 |
The figures above represent the calculated demand based on a timetable that represents the train service pattern post opening of Phase 2B. The calculation is based on peak service provision during the period 07:00 to 11:00 which is the most power demanding period, ensuring that the traction power system is sized appropriately.
Demand is presented as the total 1 minute and 30 minute values at the primary side of the grid supply transformers.
It should be noted that the total maximum demand for Phase 1, Phase 2a or Phase 2B does not necessarily equate to the sum of the maximum demand for each of the feeder stations in the ‘Phase’ as the maximum demand at each feeder station doesn’t occur at the same time.