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This is a badge bit (BB) that is part of the PEP curriculum.  Completing this BB is part of getting the straw badge in Electricity.

In this Badge Bit, you will build an emergency back-up generator for your house that is powered by a PTO from another piece of equipment, like a tractor.  Why have a tractor and a generator to maintain when you could use the tractor for both jobs?  Let's copy Travis Johnson!

Here's a post where he describes his system a bit:
The power goes out.  What next?

You can assemble pieces or buy a PTO generator for this BB
Here's a guy powering his off grid place with one:


There are three point options for this BB:
  - properly (to code) power a grid tied house for an hour - 12 points
  - augment off-grid batteries (video above) - 2 points
  - able to run certain appliances with a cord - 2 points

The minimum requirements for the grid-tied option are:
  - PTO driven generator
  - power to PTO comes from mobile equipment (like a tractor)
  - follow local code for disconnecting your generated power from the grid
  - wiring from the generator to the house is permanent (generator can be mobile for other uses)
  - enough power to run all critical circuits plus 40 extra amps

The minimum requirements for the off-grid batteries or extension cord options are:
  - PTO driven generator
  - power to PTO comes from mobile equipment (like a tractor)

To show you've completed this Badge Bit, provide proof of the following as pics or video (less than two minutes):
  - the parts of your system as purchased
  - the system powering your house, batteries or an appliance

For the grid-tied system, also provide proof of:
  - the disconnects and other components that connect the generator to your panel
  - the wiring midway through the project
  - the finished installation
  - explanation of how much power the system generates compared to your critical loads
  - a fairly thorough explanation of your code requirements and how you met them (if no code requirements in your area, explain thoroughly how the system is safe for you and the utility workers fixing the power outage)
 
Slideshow boring ... losing consciousness ... just gonna take a quick nap on this tiny ad ...
Abundance on Dry Land, documentary, streaming
https://permies.com/t/143525/videos/Abundance-Dry-Land-documentary-streaming
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