CEFAS22-77 Request for Quotation for supply, installation and operation of tide gauge and power supply at Combwich Wharf, Somerset.

Tender description

The BEEMS (British EDF Estuarine and Marine Studies) programme is funded by NNB Generating Company HPC (NNB GenCo). Through this programme, Cefas provide authoritative scientific information on the marine and transitional waters in the vicinity of potential new build nuclear power stations and require a competent Contractor to supply, install and operate a tide gauge to monitor the tidal water level at Combwich Wharf in Combwich, Somerset. The water level data collected by the gauge will inform vessel operations at the Wharf and environmental monitoring and assessment. Equipment and specification of requirements The minimum required specifications for the tide gauge system are: • To meet all applicable Health and Safety legislation requirements e.g. Provision and Use of Work Equipment Regulations (PUWER), including provision of a failure mode analysis. • Provision of tidal height measurements with accuracy to 0.1 m (or better if feasible) • Provision of tidal height updates at 5-minute intervals (with the option to increase to 1-minute intervals if required in future). • Delivery of data in real time (or near-real time) via a web page, with password protected download facility for multiple (up to 15) users, to be maintained and operated by the successful Tenderer. The website should display observed tidal height, tidal predictions (which will be supplied by Cefas as .csv or similar) tidal residuals (difference between observed and predicted values), and preferably further information, for example power supply voltage and system status. • Transmission of all data to Cefas in near-real time for archiving (for example via File Transfer Protocol (FTP)). • Powered by a low voltage, independent electrical supply as the location does not have access to mains power. This should ideally be via solar panel and battery to minimise visual intrusion as far as reasonably pract