The London Borough of Islington currently owns and operates an award winning modern district heating system in the Bunhill Ward of the Borough of Islington (Phase 1). The system provides a low cost source of heat to residents and facilities connected to the pipework network installed in the public realm. The pipework network is currently fed from a 2 MW Electrical, 2,25 MW Thermal gas engine, supported by a 115 m
3 thermal store at the Bunhill Energy centre. As a result of the success of the initial network the council intends to extend their existing systems to serve additional buildings in the immediate vicinity (Phase 2), as well as develop additional alternative low operational cost, low carbon heat sources to meet the increase in demand on the thermal network.
It is the council's ambition that the completed Phase 1 and Phase 2 district heating systems will be the premier example of successful modern district heating installation within London, providing a reliable low carbon, low cost source of heating to the residents, businesses and other interested parties within the borough of Islington. The Phase 2 works are also a project demonstrator in London falling under part of the wider EU Celsius project.
The Phase 2 extension works involve the production of heat from two identified waste urban heat sources close to the existing energy network. The two sources are in physically separate locations. It is proposed to use large scale heat pumps at each location in addition to other heat generation and pumping equipment to extract energy at these points and supply it to a District heating network. The total supply from both heat sources is estimated at approximately 1 MW thermal.
It is expected that;
The district heating network will connect with the existing Bunhill Heat and power Network, the two waste heat sources, the council's Kings Square Estate and up to 15 further buildings. The Network will be run mainly in the public highway, with some areas of soft dig and some areas of hard standing within council land. Connections into buildings are generally at basement level into and existing building wide heating systems. The proposed network extension is estimated at approximately 600 m in length.
The proposed contract will include the supply of equipment at the two energy supply locations, and is likely to require the installation and screening of this equipment at one of the locations. It is expected that works will be undertaken with the council and in partnership with the council's Celsius partners, UK Power Networks and the Greater London Authority and its agencies.
The current value of the works is estimated as 3 500 000 GBP. A design team is appointed and developing the concept design, modelling assumed performance and producing a performance specification for the works.
It is anticipated a principal contractor will be procured for the majority of the works, with some separate specialist elements at critical locations undertaken under other contractual arrangements. The Council aims to procure the works in 2014, with construction taking place throughout 2015 and the system operational in 2016. It is anticipated to commission and operate the extended network and heating equipment throughout 2016, continuing with monitoring of operation, performance reviews, and seasonal re-commissioning works for a period of 1 year up until the handing over of the project to the Council in early 2017.
Estimated value excluding VAT: 3 500 000 GBP
Lots
This contract is divided into lots: no