Electricity, heating, solar and nuclear energy

Tender description

The supply, delivery, installation, commissioning and operational training of hydrogen supply system consisting of an electrolyser and hydrogen compression system, for Viridian Energy Supply Limited. Supply, delivery, installation, commissioning, maintenance for 3 years and operational training of the hydrogen electrolyser. Electrical supply available: 400V, 50 Hz at battery limits of the supplier’s plot. Potable water consumption – To be defined by the supplier. Other utilities required, to be defined by the supplier, will be available at battery limits of the supplier’s plot. Hydrogen production of approx. 8.5 kg per hour given a normal operating capacity electrolyser load of c.0.5MW. PEM electrolyser with flexible production between agreed set points but should include: Stack operational design to allow efficient running at partial load i.e. independent individual stack control. TSA hydrogen clean up system to minimise H2 rejection and capable of being time/cost optimised when running on partial load. Final electrolyser and total system load to be supplier defined. The system should be capable of being controlled from a remotely located wind farm control centre as well as locally to the equipment. The ramp rate of electrolyser to be a minimum of 100 %/min. Electrolyser system capable of at least 100% production above nameplate capacity for short periods (c.60 mins) without degradation of electrolyser life. Supplier defined buffering for control of both electrolyser and compressor systems. Operate within the specifications for ambient temperatures between -15 and +35oC. Potable water input, any additional polishing to be included in the electrolyser supply. Water circulation on both O2 and H2 circuits. Any necessary cooling. Accessible for maintenance. Hydrogen purity of at least 99.999% and meets SAE J2719. System ramp rate should be suitable for primary reserve demand. Supply, delivery, installation, commissioning, Maintenance and operational training of the compressor system. — Compressor, control and hydrogen storage module filling system for pressures up to 300 bar, — Filling system should have automatic change over capability between 2 connected storage modules, — Delivery of 300 bar, 99.999% pure hydrogen to the storage modules, without introducing any contamination, with an input pressure from the electrolyser, — Containerised system, — A ‘soft’ start capability, — Powered from the power connection to the electrolyser, — Back pressure protection for low pressure sections of the total system, — As a minimum, the compressor will be sized to handle the maximum output of the electrolyser, — Is designed to consider the implications of hydrogen embrittlement, — Has a noise level of 5dB(A) @ 1m below the background noise level, in normal operation, — Maintenance costs for a period of operation of 3 years. The supplier will integrate the operation of the electrolyser and the compression/storage systems and detail the standards to be which the compressor will be designed and manufactured.