From: tim@streater.me.uk   
      
   On 10 Apr 2024 at 14:15:07 BST, "Lars Poulsen"  wrote:   
      
   > On 4/6/2024 1:32 AM, The Natural Philosopher wrote:   
   >> On 05/04/2024 22:08, Lars Poulsen wrote:   
   >>> On 15/03/2024 10:51, Ahem A Rivet's Shot wrote:   
   >>>  >>     Make that 5 minutes * 500W/5W or 500 minutes which is indeed a   
   >>>  >> long time but a lot shorter than the 150 hours you were expecting.   
   >>>   
   >>> On 3/15/2024 6:43 AM, druck wrote:   
   >>>  > If you want 150 hours, you need to be looking at a backup generator,   
   >>>  > so your UPS only needs to last as long as it takes for your generator   
   >>>  > to fire up.   
   >>>  >   
   >>>  > That's usually a couple of minutes for professional diesel ones, but   
   >>>  > as its home setup it might take you a few minutes to connect it up and   
   >>>  > pull the starter cord on a cheap petrol one.   
   >>>  >   
   >>>  > It might then take a few more minutes to drain the tank of the sludge   
   >>>  > that used to be fuel last time you used it, and to run to the garage   
   >>>  > to get some fresh petrol.   
   >>>  >   
   >>>  > It might take a few more minutes if your spark plugs have been fouled   
   >>>  > as you didn't clean it after use, and your air filter has a hundred   
   >>>  > different types of bugs living it.   
   >>>  >   
   >>>  > So make sure the UPS lasts an hour or 2.   
   >>>  >   
   >>>  > Oh and once you've managed to get it going, and it's making a   
   >>>  > tremendous racket, just remember everyone else in the neighbourhood   
   >>>  > who is without power will be turning to look in your direction...   
   >>>   
   >>> I read this and feel first-world superiority for having last year   
   >>> installed a 14kW Generac system, powered by our municipal natural gas   
   >>> supply. In case of a power outage, it kicks in within about 10   
   >>> seconds. When the grid comes back up, it syncs the AC to the grid   
   >>> before pulling the relay to reconnect. And every other Wednesday, it   
   >>> tests itself for 10 minutes, synchronizing before going off-grid as   
   >>> well as before going back on-grid.   
   >>> In case the muni gas is down, my electrician will come over and   
   >>> install the propane conversion kit. (I don't have a good place to keep   
   >>> propane tanks.)   
   >>>   
   >>> -- Lars   
   >>   
   >> I think I will print a small nuclear reactor on my 3D printer and go off   
   >> grid entirely :-) :-)   
   >>   
   > How large is your 3 printer? Do you know of a power generator that fits   
   > in a cubic foot? (Thermal, maybe? like what NASA uses for inerplanetary   
   > probes?)   
      
   Only if your printer can print plutonium-238.   
      
   --   
   Tim   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)