Tuesday, December 5, 2017

CAN  BITCOIN  WARMING  BEAT BACK THE ICE APOCALYPSE?

IT  TOOK  GRIST'  JUST  TWO  WEEKS TO PROGRESS
  FROM  WARNING  OF " DOOMSDAY GLACIERS"  
TO  EXPLAINING THAT  
BITCOIN  MEANS  THE  HEAT  DEATH  OF  THE  UNIVERSE:

INCOMPARABLY INNUMERATE  DOOMSDAY  COLUMNIST ERIC HOLTHAUS REPORTS:
" Today, each  bitcoin  transaction requires  the same  amount  of  energy used  to  power  nine homes  in  the U.S.  for  one  day.   And  miners are constantly  installing  more  and  faster computers. Already, the aggregate computing power of the bitcoin network isnearly 100,000 times larger than the world’s 500 fastest supercomputers combined.
The total energy use of this web of hardware is huge — an estimated 31 terawatt-hours per year. More than 150 individual countries in the world consume less energy annually. And that power-hungry network is currently increasing its energy use every day by about 450 gigawatt-hours, roughly the same amount of electricity the entire country of Haiti uses in a year.
That sort of electricity use is pulling energy from grids all over the world, where it could be charging electric vehicles and powering homes, to bitcoin-mining farms. In Venezuela, where rampant hyperinflation and subsidized electricity has led to a boom in bitcoin mining, rogue operations are now occasionally causing blackoutsacross the country. The world’s largest bitcoin mines are in China, where they siphon energy from huge hydroelectric dams, some of the cheapest sources of carbon-free energy in the world. One enterprising Tesla owner even attempted to rig up a mining operation in his car, to make use of free electricity at a public charging station.
In just a few months from now, at bitcoin’s current growth rate, the electricity demanded by the cryptocurrency network will start to outstrip what’s available, requiring new energy-generating plants. And with the climate conscious racing to replace fossil fuel-base plants with renewable energy sources, new stress on the grid means more facilities using dirty technologies. By July 2019, the bitcoin network will require more electricity than the entire United States currently uses. By February 2020, it will use as much electricity as the entire world does today."

REALLY ?  RUNNING  THE ELECTRICAL ENGINEERING NUMBERS  REVEALS    
 BITCOIN MINING  ENERGY DEMAND  IS  <100  MEGAWATTS  GLOBALLY :
 A FEW  % OF THE OUTPUT OF ONE  MAJOR POWER STATION