From: null@void.com   
      
   Motor powers pump ("compressor").   
      
   It "only" has to achieve 1-to-{approaching2} to beat 1-to-4 of a   
   an "immaculate installation" mains-electricity powered heat pump.   
   (not the full 2-to-1 because the heat from the motor also goes into the   
   house)   
   If I reckon this correctly.   
   The energy security of having motor-powered heat pumps with different   
   fuels would surely be an advantage.   
   I would gladly have some sort of heat-pump running from my   
   central-heating oil if it saved energy and fuel costs.   
   Suppose it were a little turbine of absymal efficiency - all its exhaust   
   heat worked or wasted goes into the house then anything it heat-pumps is   
   a bonus.   
   Have I got something wrong here?   
      
   The electricity "grid" here is very fragile.  We in our village had a   
   three-day power cut last winter.   
   We have enough population to have traffic queues at juntions and into   
   towns during "rush hour".   
   In Britain most homes have "TN-C-S" earthing.   
   That is otherwise known as "PME" - Protective Multiple Earthing.   
   The Earth is provided by the substations.   
   In Cornwall they dare not do that - you can only have "TN-C-S" where the   
   cables are underground, secure and protected.  IN Cornwall most are on poles   
   and pylons.   
   The risk of losing your Earth while some power is getting through is too high.   
   I am painting a picture of a fragile supply?   
      
   I haven't researched this much I admit.   
      
   Hinckley Point C is years in build and you have a feeling these "huge"   
   nuclear power stations are not the answer.   
   Seemingly lofty dreams strung on lamentable realities.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)