AC power suits sprawling O.B-cities reliant on REMOTE power generation   

DC power suits compact O.A-cities with ON-SITE power generation

The early days of electricity generation sparked a huge rivalry – known as the  “War of the Currents” between Thomas Edison (DC) and Nicola Tesla (AC).  The war was won by AC, mainly because DC is unsuitable for long distance transmission.

[stextbox id=’alert’ caption=’OASIS-CITIES COULD BE DIRECT-CURRENT CITIES’] Although AC power still predominates, computers, LEDs, solar cells and electric vehicles all run on DC power. With “on-site” power generation – and thus independence from the power grid – OΔCities could be run entirely on safer and more efficient DC power 

AC disadvantages 

• • Heavier, more complex generating equipment
  • Power loss thru transformers, sub-stations, and transmission lines
  • High extra cost of the above
  • Loss of power via heat due to the oscillating motion of AC   
  • DANGER (high voltage)

DC advantages 

• • More efficient for Micro-Grids
  • Constant voltage, no surges, less likely to damage equipment 
  • Less power-loss from resistance (short transmission distances)
  • Can be stored in batteries
  • SAFER (low voltage)
  • Transmission equipment is simpler and less expensive
  • All energy storage devices – batteries, flywheels, compressed air, etc, are based on DC

 DC power is produced by Solar panels, Wind turbines, and all renewable-energy systems