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United Kingdom-Plymouth: Buoy maintenance services
Section I: Contracting authority
Section II: Object
Marine Business Technology Centre, Plymouth. Buoy Platform Tender Specification
PML is now seeking tenders for the replacement of the L4 buoy which has provided excellent service for over 10 years in the field. The envisaged new buoy platform will provide the necessary infrastructure for PML to make significant technical and scientific advancements at the L4 station.
The western English Channel is a hostile environment for the long-term deployment of oceanographic equipment. It can be subject to strong winds at any time throughout the year with gales and storms being commonplace especially in the winter months. The prevailing winds are from the southwest and, due to the long fetch; these can generate powerful swell and large waves (during storm events to the order of 10 m). The tides are moderately strong (typically 0,6 – 0,8 ms-1 at mean spring tide with maximums anticipated in the region of 1 ms-1) with a tidal range of almost 6 m at extreme spring tides. In addition the English Channel is a major thoroughfare for commercial shipping and Plymouth itself is a naval port with a sizeable fishing fleet. The buoy and any fixed moorings need to be well characterised in order to avoid any potential collisions and strong enough to withstand the elements. Whilst the present buoy doesn’t measure wave height there is a wave buoy in close proximity (5 nautical miles) operated as part of the Channel Coastal Observatory (http://www.channelcoast.org/data_management/real_time_data/charts/?chart=98); wind data is available from the Rame Head Meteorological Station (4 nautical miles north of L4; (http://www.nci-ramehead.org.uk/weather/Current_Monitor.htm) and the meteorological data measured on the existing L4 buoy can be accessed at: http://www.westernchannelobservatory.org.uk/buoys.php
The L4 station has a charted depth of 51m but as mentioned above the large tidal range should be taken into consideration.
Hardware requirement and specification
The envisaged replacement platform is required to be of suitable size and design to maintain the existing time-series measurements with the addition of a water column profiling capability. The WCO is recognised as a UK Natural Environment Research Council National Capability: in addition to the data buoys, vessel sampling is also maintained on a weekly basis. With a constant requirement for new measurements driven by both scientific aspirations and also technical advances, it is essential that the buoy platform has the scope to accommodate third party prototype sensors.
— the platforms should be of modular construction and be simple and straightforward to change component parts. Where possible the construction materials should be lightweight and be highly resilient to chemical and biological corrosion and fouling. It is also important that the structure is easily cleaned in situ,
— the buoy supplied must be able to withstand the hostile marine environment found in the western approaches off Plymouth,
— it is expected that the buoy will have a minimum lifespan of 10 years – accepting the need to replace some component parts during this time due to wear and tear,
— the buoy platform will be supplied in yellow indicating special mark in line with IALA requirements,
— suitable lifting point arrangements must be incorporated into the design and be appropriately placed as to not compromise any sensors during lifting,
— the buoy should be sufficiently ballasted to maintain inherent stability in the event of breaking free from moorings and for towing and installation purposes,
— non-slip surfaces are required in locations accessed by personnel,
— the buoy platform will have good sea keeping abilities and be as stable as possible in all sea conditions.
Please see tender documents for full breakdown and details of the following elements:
— winch assembly,
— power systems,
— control, integration and communication,
— mooring design,
— final considerations.
Plymouth Marine Laboratory (PML), in partnership with the Marine Business Technology Centre (MBTC), Plymouth, has an exciting opportunity to acquire a new state-of-the-art buoy platform. The MBTC is funded by the European Regional Development Fund to provide innovation services to the marine industry. A major component of the MBTC project is to enhance and develop “Smart Sound Plymouth”
An in-sea trials environment for new and innovative technologies. Through this project PML seek to replace an existing buoy platform with a new buoyed platform capable of continuing and enhancing existing oceanographic time series by adding additional functionality including an in-water profiling instrument package and the ability to ‘plug-in and play’ a wide range of innovative marine technology.
Section III: Legal, economic, financial and technical information
References for similar previous contracts/projects within the last 3 years. Each reference must be detailed – as a general rule, at least 2 of the references must be appropriate to the contract (minimum requirement). Provision of these will be taken as a pass but expect that they may be verified.
Documentation for technical capacity – a short summary of your organisation’s previous experience in the sector relevant to the tender with reference to current facilities, capability, equipment, workforce composition, a definition of the product range, years in business, staff turnover. It is expected that this will be appropriate to the nature of the tender industry sector in order to pass.
Completion of our supplier setup form (attached) along with accompanying papers requested (including valid insurances). A pass will be viewed as compliance to our supplier setup form completion. This form will be used to setup the successful tenderer on our systems.
All tenderers must provide a declaration on their honour, duly signed and dated by an authorised representative of the tenderer, stating that they are not in one of the situations of exclusion listed in Appendix 1. This should be a signed and dated Appendix 1 (see below). Expect this to be checked against publicly or commercially available information.
Evidence of Legal Status – you must provide supporting documents of your legal entity status and expect these to be checked against publicly or commercially available information. A pass is a successful check of the evidence provided.
Evidence of bank account facilities (either a letter signed and stamped by your bank or accompanied by a recent bank statement) and expect this to be verified.
Evidence of financial capacity – please provide your last 2 years financial accounts and expect these to be checked against publicly or commercially available information. Financial capacity assessment is by comparison between your turnover and the tender value, your turnover should be expected to exceed twice the tender value.
Evidence of Economic capacity – using your last 2 years financial accounts economic capacity will be assessed by:
1) Debt to equity = Total debt/Total equity;
2) Quick ratio = (Current assets – Inventories)/Current liabilities;
3) Interest coverage ratio = Operating income (or EBIT)/Interest expense.
These tests will be assessed individually for pass/fail.
These assessments will be compared to your industry sector mean at the time of the tender process. Favorable results (better than 80 % of mean) will result in a pass.
Section IV: Procedure
Section VI: Complementary information
All tenders will be reviewed and assessed within 14 days from the end of the tender publishing.