Open Closing in a 28 days
Combined Heat and Power Engines
Descriptions
This procurement relates to the supply, commissioning and maintenance support of Combined Heat and Power (CHP) engines across multiple Thames Water wastewater treatment sites to maximise engine availability / performance. The scope includes the provision of new CHP units and associated services to support operational efficiency and energy recovery, as well as spare parts stock holding and technical support.
Objectives and Expected Outcomes
Effective utilisation of the biogas produced during the treatment of sludge, minimising flaring of gas, maximising electrical heat and power production
• Securing Capacity: Ensure supply of CHP Engine requirement through AMP 8 and AMP 9
• Standardisation: Promote consistency across the CHP estate to reduce complexity and improve asset availability
• Commercial Value: Leverage volume-based incentives and long-term value through strategic sourcing
• Serviceability: Ensure availability of cost-effective spare parts and technical support
• Efficiency & Sustainability: Support energy recovery and carbon reduction goals by securing high-performance, low-emission CHP solutions
• Regulatory Changes: Ensure compliance with evolving regulatory requirements
• Innovation: Accommodate benefits from innovation
Procurement Approach: A competitive tender process will be undertaken to appoint a supplier capable of delivering the full scope. We anticipate awarding the contract to a single supplier but reserve the right to award to more than one supplier if it is deemed to deliver best value.
Background: Thames Water (TW) currently operates 47 Combined Heat and Power Engines (CHP) across 24 wastewater treatment sites. These engines vary in age, size and output, and many are approaching the end of their lifecycle (typically 20 years).
Anticipated Requirements:
• Replacement of end-of-life engines during AMP 8 with estimated 10 - 16 new engines (Estimated range between 100kW - 1500kW electrical output) expected to be installed within AMP 8 alone. Further new engines will be required for AMP 9
• Specification: to be provided at PSQ
• Support innovation: We are always looking for ways to improve what we do, and welcome innovative ideas/solutions
• Compliance with evolving environmental regulations, especially around emissions to air (e.g. methane slip and possible carbon capture under the Industrial Emissions Directive)
• Integration of AMP 9 requirements, to leverage further standardisation and volume-based discounts: The engines on an additional 7 wastewater treatment sites planned to be upgraded in AMP 9
What we anticipate purchasing
TW is seeking to procure a comprehensive solution for CHP engines, which includes:
• Supply, installation, and commissioning of new CHP engines across the TW estate
• Ancillary components required for engine connection and operation
• Provision of spare parts to support ongoing maintenance
• Planned and reactive maintenance in line with the manufacturers O&M manual
• Technical support to ensure safe and efficient operation through the lifecycle of the asset
The procurement will cover both replacement of end-of-life engines and new installations to meet growing demand. The current aim is to award a single-source agreement to enable standardisation, improve serviceability, and reduce complexity across the estate.
Please note that that deadline for asking for access to the PSQ & submitting of the PSQ is 28th November 2025, at 10 am.
Timeline
Published Date :
Deadline :
Contract Start :
Contract End :
Tender Regions
CPV Codes
34311110 - Spark-ignition engines
42110000 - Turbines and motors
42510000 - Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery
50530000 - Repair and maintenance services of machinery
Keywords
spark ignition motor
petrol combustion engine
gasoline power unit
SI engine
fuel-air mixture engine
ignition piston engine
petrol-based motor
gasoline spark engine
engine with spark plug
SI combustion unit
turbines
motors
power turbines
steam turbines
hydraulic turbines
gas turbines
electric motors
mechanical motors
power generation motors
rotating power units
heat exchanger
air conditioning unit
industrial chiller
refrigerating system
HVAC equipment
air filter system
evaporator unit
condenser module
cooling coil
ventilation and cooling machinery
machinery diagnostics
equipment overhaul
industrial maintenance
plant machinery service
mechanical repair
system belt replacement
hydraulic system tune-up
gearbox servicing
machinery inspections
heavy equipment repair
Tender Lot Details
2 Tender Lots
Workflows
Status :
Procedure :
Suitable for SME :
Nationwide :
Assign to :
Tender Progress :
Details
Notice Type :
Tender Identifier :
Tenderbase ID :
Low Value :
High Value :
Buyer Information
Procurement contact
Name :
Phone :
Email :
Possible Competitors
1 Possible Competitors
