PRO004738-Works-Contract- MBC Biomethane and CO2 Plant

UU (United Utilities Water Limited) UU are proposing to install new Gas to Grid upgrading plant with a Biomethane / CO2 carbon capture (liquified) that takes all the on-site generated gas (~ 6000nm3/hr) from our existing Anaerobic digestion storage for export into the gas network. UU are interested in understanding how this model can be delivered, and the best technical solution Developing our future strategy we are undertaking pre-market research to understand market offerings for the following services Our initial design for the main plant items include the following Responses detailing variations of the above services are welcome. • Dual stream 'Amine solution' Chemical wash plant o 6000Nm3/hr of biogas treatment for export to local gas network o Pre-treatment conditioning of biogas (VOC / Siloxane / H2S removal) o Analytical monitoring / control of gas quality to ensure product is suitable for export • Grid Export Unit (GEU) – kiosk based solution o Arrangement of valves & pipework for the provision of o Isolation / diversion of the gas between export point & flare stack o Biogas flare stack for emergency burning of surplice gas o Analytical monitoring / control of gas quality to ensure product is suitable for export • Remote Operating Valve (ROV) assembly – kiosk based solution o Arrangement of valves & pipework for the provision of o Valve isolation system to prevent the export gas in the event of quality / gas network issues o Analytical monitoring / control of gas quality to ensure product is suitable for export • CO2 capture / recovery Plant (off- gas product of the Chemical Wash Plant) o Liquification & storage o Vehicle export (tanker) loading / filling facility • Propane storage facility o 48Tonnes of liquid propane storage o injection to Biomethane export pipeline o injection / purge points biomethane pipework o injection purge points on H2 boiler feed main o Fire suppression system • Dual fuel boiler (H2 and natural gas) o 9000T steam/hr @ 190oC o Boiler feed water conditioning unit o Housing for boiler • H2 import pipeline to dual fuel boilers o 1km x 400mm2 @ 2bar pipeline direct buried (gas main) o H2/natural gas conversion of 2 x 9000T/hr steam boilers o H2 ring main in boiler house • New electrical feed. o 2MVA 6.6kV/415V 3 phase transformer o HV Ring main unit (RMU) o HV joints / infrastructure interventions o New LV intake board (Form 4) 3 tier system / ACB’s / distribution o HV / LV earthing Additional information: This notice is a request for information only at this stage. If you have experience in this area please could you provide at a minimum the following information and submit to the United Utilities CTS Procurement Team mailbox: CTSProcurement@uuplc.co.uk • Company Name • Contact details, including location telephone and e-mail address, main point of contact and position in Company