Shawfair Energy Centre & District Heating Network

A Tender Notice

Find a Tender
Contract (Works)
23.5 month
18 Aug 2021
To 14 Sep 2023 (est.)
24 Sep 2021 11:00




Geochart for 1 buyers and 0 suppliers

1 buyer


MEL is seeking to procure a suitably experienced company to lead the successful design and construction of a heat network for the Shawfair area in Midlothian, Scotland. The heat network development will consist of a connection to a local Energy from Waste Plant, the construction of an Energy Centre complete with back-up boiler plant, District Heating Networks (DHN) and heat substations.

Total Quantity or Scope

Shawfair is a new mix use residential and commercial development in Midlothian, Scotland. A local Energy from Waste plant (EfW) has heat of up to 95°C available as a by-product of its operations for the development area. This project aims to connect the EfW waste heat to the development and to create a sustainable District Heating Network for the wider Midlothian area. The heat is to be transported from the EfW to an Energy Centre (EC), from where the heat disperses into a District Heating Network (DHN). The capacity of the DHN will be about 16.5MW. The DHN will connect to both residential units and mixed use space including office, retail and community space. When heat from the EfW is not available, it must be created at the EC. The EC will be fitted with boilers, thermal stores and other general equipment required for DHN operation, such as pressure keeping, and water quality control. It will also house the control system of the entire network. Steel based district heating pipes will form the primary network that feeds the warm water to Heat Substations, where the water is hydraulically separated from secondary networks. The Secondary Off Plot networks will be polymer based district heating networks that transport warm water to the boundary of development plots. NOTE : All Secondary On Plot DHN Networks are for the plot developer to coordinate the connection to all dwellings including the interfaces with the dwellings. This does not form part of this scope. The build programme for the works included in this contract notice will be approximately 24 months. The project is new build. It is anticipated that the contract scope shall include (but is not limited to) design and build of: - Pipework and connections to EfW heat offtake system - Energy Centre - Electrical installation, instrumentation and controls - Primary DHN Spine - Initial Heat Sub Stations across wider plot development area - Initial Off Plot Secondary district heating pipework The contract will contain options for MEL to instruct the successful contractor to price and carry out the design and build of network extensions to new customers beyond the initial scope listed. MEL reserves the right to benchmark the price of and additional works under a separate contract notice and potentially award those works to others.

Renewal Options

The contract value stated above includes a current estimated value for the phase 1 project (capital expenditure of an estimate 20 million GBP). The contract will contain options for MEL to instruct the successful contractor to price and carry out the design and build of network extensions to new customers beyond the initial scope as listed above but estimated to consist of: - AdditionalPlant Rooms within an adjacent location (excluding civils and utilities) - Additional Heat Sub Stations across wider plot development area (up to ~4MWth, excluding civils and utilities) - Additional Primary DHN Spine - Additional Off Plot Secondary district heating pipework - Additional Electrical installation, instrumentation and controls MEL estimates an allowance of a further 5 million GBP for the value of any network extensions that may be instructed at MEL's option.

CPV Codes

  • 45232140 - District-heating mains construction work
  • 09300000 - Electricity, heating, solar and nuclear energy
  • 09323000 - District heating
  • 38551000 - Energy meters
  • 42515000 - District heating boiler
  • 44163120 - Distance-heating pipes
  • 45000000 - Construction work
  • 45251000 - Construction works for power plants and heating plants
  • 45251250 - District-heating plant construction work
  • 71311000 - Civil engineering consultancy services
  • 71314000 - Energy and related services
  • 71314310 - Heating engineering services for buildings
  • 71700000 - Monitoring and control services


  • This is a one-off contract (no recurrence)
  • Options are available.
  • Renewals are not available.
  • Financial restrictions apply.

Other Information

** PREVIEW NOTICE, please check Find a Tender for full details. ** All dates, timescales and values set out in this notice are estimates only and so subject to change during the tender process, if required. The date and time for tender submission will be confirmed in the invitation to negotiate. The tender evaluation methodology will be published as part of the invitation to negotiate. Under the terms of this contract the successful supplier(s) will be required to deliver community benefits in support of the MEL’s economic and social objectives. Accordingly, contract performance conditions may relate in particular to social and environmental considerations. The community benefits included in this contract will be detailed within the invitation to negotiate. NOTE: To register your interest in this notice and obtain any additional information please visit the Public Contracts Scotland Web Site at Community benefits are included in this requirement. For more information see: A summary of the expected community benefits has been provided as follows: Details of the community benefit requirements will be included in the procurement documents. (SC Ref:663249)