• Post Reply Bookmark Topic Watch Topic
  • New Topic

low cost micro-hydro  RSS feed

 
Jay Hunter
Posts: 21
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Scott,

I am wondering, what are the options for doing very low cost microhydro; especially DIY? I'm asking specifically w.r.t. the hydro-unit itself for low head high flow. Basically, what are the options for do it yourself plans or low cost purchasable units?

Doesn't need to be big, even 10's or 100's of watts would be awesome.

Thats the general situation. If you want to get into my specific situation I've got two site options:

1. Creek which runs for a week or so after a rain; maybe 1/3 to 2/3 of the year depending on the year. Around 100 gpm and max 2-10'. Not something one would usually consider unless it was very cheap to do, in which case its worth it. Especially since its 100' from the house. It usually is running when my solar panel is not.

2. Creek that runs year round bottoming out around 100-200 gpm in the summer dry period and maxing out as an area of fast moving water 20' by 75' in area. I can get max 4' head but the less the better as its a wide channel to dam. Two main problems: its 1000' from the house and how to keep the system from washing away during the gully washers. Though we may build a house closer to it.

Cheaper the better. I already have a sealed 3600RPM 3.3 KW AC PMG head that could be used and could make this project easier, I just need a way to drive it. But may even be oversized for this project. And I'm open to other ideas. Even something generating 10's or 100's of watts would be helpful.
 
Xisca Nicolas
pollinator
Posts: 1320
Location: La Palma (Canary island) Zone 11
26
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hehe, when you say "low cost", this is as when I say "cheap", I think we mean that we want to estimate cost Vs benefit! What is worth the job, time and investment!
And I also have a problem of infrequent availability...
So my second guess to generalize would be about the quantity of water is needed for what energy to obtain.
I personally have no idea how to estimate what is needed in terms of volume and steepness of running so that something is worth while.
 
Let nothing stop you! Not even this tiny ad:
Video of all the permaculture design course and appropriate technology course (about 177 hours)
https://permies.com/wiki/65386/paul-wheaton/digital-market/Video-PDC-ATC-hours-HD
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!