POWER SUPPLY FOR SKA: a technological challenge. Dr. Germano Bianchi INAF-IRA Rome SKA Meeting, 19-20 June 2012.

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Presentation transcript:

POWER SUPPLY FOR SKA: a technological challenge. Dr. Germano Bianchi INAF-IRA Rome SKA Meeting, June 2012

The win win solution will bring the construction of the SKA radiotelescope in two remote areas (South Africa and Australia). The system power supply will represent a technological challenge. AUSTRALIA SOUTH AFRICA Low frequency band Medium-High frequency band

Power generation technologies Green energy: Nuclear Hydrocarbons Gas Petrol Carbon PV solar panel Solar thermodynamic Wind turbines Hydroelectric Biomasses

Green energy solution POWER STORAGE Advantagies: 1.It is a free energy 2.Local generation: It does not need power grid No fuel transportation 3.No CO 2 emission Disadvantagies: 1.Discontinuous generation The more suitable solution is the green energy.

Present storage solutions 1.Batteries 2.Hydrogen 3.Thermal (chemical salt) 4.Flywheel Flywheel

Power Requirements AA-low: 10 MW AA-mid: 30 MW Dishes:15 MW Super computers and facility: 40 MW Central site/infrastructure: 10 MW (power consumption estimated in SKA phase II)

TOTAL: 105 MW920 GWh/year Power Requirements POWER (MW)

Processing Engines currently available

PV charge controller Battery DC-DC converter Solar charger Front-end Self-powered solution ….

Conclusion -Solar and wind at present seems to be the more suitable renewable energy to be exploited for SKA -Storage technologies need to be deeply investigated -In the design phase, reliability and low power consumption must be one of the more important constraints to be considered.