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Tamesis Joint Venture for Thames Water

Control solution for upgrade of Beckton WwTW and new power generation

Customer Scope

Beckton is one of five major waste-water treatment works serving London, upgraded as part of the Thames Tideway scheme to increase capacity for an expanding population and eliminate discharges to the Thames in storm conditions.

Scope included upgrades to existing plants, plus the construction of new treatment plants and renewable energy schemes, under the management of Principal Contractor Tamesis.

Beckton remains an excellent example of GPS’s technical capability and large-scale project delivery.

GPS Scope:

GPS’ scope of work included process control and power management solutions for new treatment plants including raw sludge, activated sludge processing and RAS/SAS plants, as well as the Lee Valley Tunnel; and on site power generation schemes including diesel, wind and a THP based advanced anaerobic digestion plant.  

GPS was tasked with providing all the low voltage assemblies for eight individual schemes, and a power management system to export the generation output to the national grid.

  • Duration 36 months
  • Industry Sector Regulated Water
  • Contract 4.2 million
  • Completion 2014
  • Beckton WwTW
  • Beckton WwTW
  • Beckton WwTW
  • Beckton WwTW
  • Beckton WwTW
  • Beckton WwTW

Beckton WwTW.


Project Delivery / Outcome

The main challenge of Beckton was the demanding timescales required to meet Environment Agency improvement targets and deadlines, and the commercial urgency of getting the energy plants online and generating a return on investment.

GPS established a dedicated project team and production line and was able to draw on its technical understanding from previous Thames projects and its design library to shave time off the schedule.

A proactive and collaborative working relationship with Tamesis also established a level of trust and flexibility that saved more time by anticipating and quickly resolving supply chain and site issues.

The GPS-Beckton team designed manufactured and commissioned a total of 24 MCCs and LVDBs totalling 300 metres over 3 years, and was proud to be awarded ‘Best Contractor 2013’ by Tamesis for its proactive approach to delivery.





IP        Current     kA    Metres

PG41 Sub Station


IP54    4200A       80    10

PG51 Sub Station


IP54    2200A       50    06

Sludge Distribution


IP54    4200A       80    08

Raw Sludge


IP54    2200A       50    22



IP54      800A       50    03

Activated Sludge ASP4 A


IP54    5400A       80    27

Activated Sludge ASP4 B


IP54    5400A       80    26

Generator LCPs

MCC / ICA /SW(5)

IP54       n/a         n/a   14  

Wash Water


IP54      800A       50    07

Power Management


IP54       n/a         n/a   04     

Wind Turbine


IP54     5400A      80    08

Lee Valley Tunnel


IP54     1000A      50    50

THP Sub Station


IP54     4200A      80    23

THP Digester


IP54     1200A      50    27

THP Boiler house


IP54     1000A      50    25

THP Indigenous sludge


IP54     1800A      50    40


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