• Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources the cider press projects digital market permies.com private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • r ranson
  • Nicole Alderman
  • Anne Miller
  • Pearl Sutton
  • James Freyr
  • Jocelyn Campbell
stewards:
  • Joylynn Hardesty
  • paul wheaton
  • Burra Maluca
garden masters:
  • Steve Thorn
  • Greg Martin
gardeners:
  • Jay Angler
  • Carla Burke
  • thomas rubino

Question about Micro-Hydro Setups

 
Posts: 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hello, I've grown an interest in hydroelectric lately. I've been reading a lot, looking at wiring diagrams, and looking at the different tech available today for hydro. One thing is confusing me about some systems with a dump/diversion load setup like this one. http://www.rockyhydro.com/images/microhydrosystem.jpg
I think I understand the concept of it, but what exactly is stopping the batteries from being over drained from the inverter load?

I've been struggle to find the answer, so I thought I'd see if anyone on here knows the answer. Any help is appreciated.
 
gardener
Posts: 2990
Location: latitude 47 N.W. montana zone 6A
640
cat pig rocket stoves
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi Colin; Welcome to permies!

The inverter has a low voltage shut off, on most units it is user adjustable.

The inverter is user controlled. Most of us shut it off at night. We also monitor our battery state of charge.  
 
pollinator
Posts: 596
Location: Southern Arizona. Zone 8b
75
fish bike bee solar woodworking greening the desert
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
The inverter itself.  Most are designed to shut down when the battery voltage drops below a given level.  The better inverters have a programmable voltage cutoff.
 
Colin Auby
Posts: 2
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

Peter VanDerWal wrote:The inverter itself.  Most are designed to shut down when the battery voltage drops below a given level.  The better inverters have a programmable voltage cutoff.

Oh I did not know that. Thank you both very much for the info.
 
pollinator
Posts: 2718
Location: Massachusetts, Zone:6/7, AHS:4, Rainfall:48in even Soil:SandyLoam pH6 Flat
216
forest garden solar
  • Likes 1
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
The inverter load draining your battery isn't just a micro-hydro question. Solar Panels/Wind/Hydro and any type of 'off-grid' solutions have the same problem.
And in truth they will drain your battery, your battery will go from 100% full to 50% and then down to 0% and it might even kill your battery.

If you are onsite this is when you would turn on your generator, or tell everyone to stop using the microwave, electronics, unplug devices. You meat in your fridge might go bad, etc.

SO the real solution is to size your system properly. So that your don't have to watch your meat in your fridge go bad.
 
It is no measure of health to be well adjusted to a profoundly sick society. -Krishnamurti Tiny ad:
Natural Swimming Pool movie and eBook PLUS World Domination Gardening 3-DVD set - super combo!
https://permies.com/wiki/135800/Natural-Swimming-Pool-movie-eBook
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!