--- title: "Tower Bridge - High Voltage Electrical Infrastructure upgrade" ocid: "ocds-b5fd17-a222cedd-9c09-4d1a-9470-6e9f7aea9c06" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-a222cedd-9c09-4d1a-9470-6e9f7aea9c06" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-a222cedd-9c09-4d1a-9470-6e9f7aea9c06.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-a222cedd-9c09-4d1a-9470-6e9f7aea9c06.json" source: "Contracts Finder" current_stage: "Tender" buyer: "CITY OF LONDON CORPORATION" published: "2021-03-18" --- # Tower Bridge - High Voltage Electrical Infrastructure upgrade Buyer: CITY OF LONDON CORPORATION Current stage: Tender OCID: ocds-b5fd17-a222cedd-9c09-4d1a-9470-6e9f7aea9c06 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-a222cedd-9c09-4d1a-9470-6e9f7aea9c06) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-a222cedd-9c09-4d1a-9470-6e9f7aea9c06.json) ## Summary The City of London Corporation is seeking to upgrade the High Voltage Electrical Infrastructure at Tower Bridge, situated in London, with a total project value of £5 million. This procurement is currently in the tender stage, with the deadline for submissions set for 2nd April 2021. The works entail the replacement of outdated electrical systems to enhance power resilience for critical operations, including bridge lifts and safety lighting. This project falls under the category of electrical wiring and fitting work, classified as CPV code 45311000, and aims to ensure minimal disruption to bridge operations during construction. This tender presents a significant opportunity for businesses specialising in electrical engineering, infrastructure upgrades, and construction management to expand their clientele. Companies with experience in managing public works, particularly those skilled in handling coordination with utilities and navigating planning conditions, will be well-suited to compete for this project. Successful bidders will not only contribute to a landmark project but also gain valuable experience and exposure within the public sector procurement landscape. ## Notice The project works comprise upgrading the High Voltage (HV) and Low Voltage (LV) electrical infrastructure and increasing its power resilience (i.e. the secondary source of power in the event of a power failure). The existing secondary supply can only power bridge lifts at half speed, subject to complex adjustments to driving machinery, and essential functions. In addition, the secondary power supply is used for river signal and navigation lights, public and safety lighting, and more critically, the security CCTV camera provision across the bridge. This effects the ability to complete bridge lifts as covered under the Corporation of London (Tower Bridge) Act 1885. Therefore, it is imperative that the backup power supply provides secure power resilience to these functions. The Bridge is currently at risk of power failure due to the existing electrical network and switchgear being over 40 years old. There is currently no reliable source of back up supply due to the age and condition of the infrastructure and parts to carry out repairs to the switchgear are difficult to source as they are no longer readily available. The project works therefore comprise of replacing the HV & LV switchgear and transformers, segregating HV & LV services (via switch room on new mezzanine floor), replacement of existing HV cables, removing existing generator, provision of a new secondary HV supply North Shore and provide generator plug in connection point, together with existing South Shore HV supply replacement. The basis of the design is to provide a solution that meets the needs outlined above whilst ensuring minimal disruption to bridge operations and visitor attraction. It also caters for replacing existing equipment that is obsolete or nearing its end of life. Summary of requirements: - Replace HV & LV switchgear and transformers. - Segregate HV & LV services (via switch room on new mezzanine floor). - Replacement of existing HV cables. - Removal of existing generator on North Shore, facilitating new UKPN Plant Area. - Provision of new secondary HV supply. - Provision of new generator plug in connection point. - Migration of existing supplies onto new essential and non-essential LV panels. - Removal and reinstatement of Ship stairs and associated services to facilitate an adequate access route for new plant installation. - New gas suppression and extract systems. - Switch Room Ventilation & Cooling. - SCADA controls. - Construction of a new mezzanine floor. - Extensive structural and construction works to support the electrical infrastructure works - Circa. 30% of contract value. Furthermore, the successful contractor will be responsible for: - Managing works on public highway. - Managing applications to Transport for London. - Management of and liaising with UKPN for the coordination of works. - Managing Bridge closures. - The discharge of planning and heritage conditions. - Phasing of the works. - Out of hours working. Additional information: This will be a two stage tender process: Stage 1: SQ stage will consist of Qualification (Pass/Fail) questions ,Technical ability and Financial checks. The selection process will take forward 6 high scoring bidders to stage 2. Stage 2; ITT stage where full documentation will be made available to the 6 bidders to submit a) Technical Responses b) Price. This project will be tendered on capitalEsourcing portal, in order to take part in the tendering process you will need to register on the portal. The reference to the project on the portal is: pqq_COL_1647 - Tower Bridge - High Voltage Electrical Infrastructure upgrade. ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/278fce40-e680-485d-b7ca-8d58a0ad27e6 | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Works | | Procurement method | Limited | | Procurement method details | Competitive quotation (below threshold) | | Tender suitability | Not specified | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 18 Mar 2021 | | Submission deadline | 2 Apr 2021 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 25 Jul 2021 - 21 Jan 2022 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £5,000,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | CITY OF LONDON CORPORATION | | Locality | GUILDHALL, LONDON | | Post town | Central London | | Postcode | EC2P 2EJ | | Country | England | | ITL 1 | TLI London | | ITL 2 | TLI4 Inner London - East | | ITL 3 | TLI43 Haringey and Islington | | Local authority | Islington | | Electoral ward | Clerkenwell | | Westminster constituency | Islington South and Finsbury | | Delivery location | TLI London | ## CPV Codes ### Divisions - 45 - Construction work ### Codes - 45311000 - Electrical wiring and fitting work ## Release History - 18 Mar 2021 at 15:21 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/278fce40-e680-485d-b7ca-8d58a0ad27e6 ## Documents - https://www.contractsfinder.service.gov.uk/Notice/278fce40-e680-485d-b7ca-8d58a0ad27e6 18th March 2021 - Opportunity notice on Contracts Finder ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-a222cedd-9c09-4d1a-9470-6e9f7aea9c06. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-a222cedd-9c09-4d1a-9470-6e9f7aea9c06.json.