Dear Colleagues:

I'm seeking information about centrifugal pumps working in turbine regime (PAT)
and induction motor as generator (MIG), specially theoretical fundation of their
working principles and if you have MHPG Series volumes about this topics, please
coul you scan the theoretical part and selection of equipment for such work and
send it to me by mail. This information is to support a master degree work about
this topics.

Thank you for you attention.

Angel Luis Ricardo, Cuba


[Non-text portions of this message have been removed]

Dear Colleagues,
Could anyone help me find materials on Electronic Load
Controller for small hydro power projects. This is
required for undergraduate projects in my institute. I
shall be obliged for the help.
Thanking you

Sarsing Gao

________________________________________________________________________
Missed your favourite TV serial last night? Try the new, Yahoo! TV.
        visit http://in.tv.yahoo.com

Best pumps as turbines is CORNELL PUMPS, as far as I know.
Roberto


-----Mensaje original-----
De: Angel Luis Ricardo [mailto:alricardo@...]
Enviado el: Martes, 01 de Octubre de 2002 06:09 a.m.
Para: microhydro@yahoogroups.com
Asunto: [microhydro] Need information about pumps as turbines and induction
motors as generators


Dear Colleagues:

I'm seeking information about centrifugal pumps working in turbine regime
(PAT) and induction motor as generator (MIG), specially theoretical
fundation of their working principles and if you have MHPG Series volumes
about this topics, please coul you scan the theoretical part and selection
of equipment for such work and send it to me by mail. This information is to
support a master degree work about this topics.

Thank you for you attention.

Angel Luis Ricardo, Cuba


[Non-text portions of this message have been removed]



NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

More information on micro hydropower at http://microhydropower.net

To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Dear group,

Please be informed on the updated website of group member Harry Terbush
of Windsor machines at:
AOL:  http://members.aol.com:/hterbush/homepage/index.htm
Internet: http://www.windsormachinery.com

Kind regards,


Wim

Double Power in Bocay
In Bocay, we reviewed the design plans for a second injector to double
the potential electrical output of their micro-hydro system.  The
expansion would allow APRODELBO, the Association for Development of
Bocay Electric Service, to offer electricity to 80 more homes, or about
400 more people in Bocay.  In the future, the increased power would also
allow them to expand the grid to neighboring communities to bring light
to hundreds of more people.  Pieces of the new injector are being
constructed in the machine shop in El Cuá and Green Empowerment will
arrange for the fabrication of the remaining pieces in North America.
It is exciting to be a part of a positive project that tangibly raises
the living standards in an area that was hard hit by the
Sandanista/Contra War, Hurricane Mitch and plummeting coffee prices."


More information about the Pre-feasibility study training in Nicaragua
can be read in a project profile at
http://www.greenempowerment.org/nicaragua-training.htm and in Joseph
Richards' journal, Green Empowerment, Program Manager.
http://www.greenempowerment.org/joesphsjournal8.02.htm  The journal also
provides more trip details and microhydro project information.

Hi,

What type/kind of information are you looking for?

Ghanashyam

-----Original Message-----
From: sarsing gao [mailto:sars_ing@...]
Sent: Wednesday, October 02, 2002 2:00 AM
To: microhydro@yahoogroups.com
Subject: [microhydro] Request for information on ELC


Dear Colleagues,
Could anyone help me find materials on Electronic Load
Controller for small hydro power projects. This is
required for undergraduate projects in my institute. I
shall be obliged for the help.
Thanking you

Sarsing Gao

________________________________________________________________________
Missed your favourite TV serial last night? Try the new, Yahoo! TV.
        visit http://in.tv.yahoo.com


NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

More information on micro hydropower at http://microhydropower.net

To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Hi

This company in NZ makes Electronic load controllers

http://www.powerflow.co.nz/


Regards


Michael Lawley
   ----- Original Message -----
   From: sarsing gao
   To: microhydro@yahoogroups.com
   Sent: Wednesday, October 02, 2002 5:59 PM
   Subject: [microhydro] Request for information on ELC


   Dear Colleagues,
   Could anyone help me find materials on Electronic Load
   Controller for small hydro power projects. This is
   required for undergraduate projects in my institute. I
   shall be obliged for the help.
   Thanking you

   Sarsing Gao

   ________________________________________________________________________
   Missed your favourite TV serial last night? Try the new, Yahoo! TV.
          visit http://in.tv.yahoo.com

         Yahoo! Groups Sponsor
               ADVERTISEMENT




   NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

   More information on micro hydropower at http://microhydropower.net

   To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



[Non-text portions of this message have been removed]

Hi all forum members...I'm interested in talking with any forum
members that use water wheels to generate power...Franklin

I have been searching all over for somebody to help me figure out how to tap the
power of a 5-acre lake on my property that spills (7 months a year) over a
spillway, then passes under a road and forms a waterfall with a drop of about 30
feet. I will settle for as little as 1 kw in power, which would just about cover
my electrical needs. My house sits right on the lake and very close to the
waterfall and spillway.

I am not looking for a huge project here. I need some help in ascertaining what
can be done. I am in Northern California in the foothills of the Sierra Nevada
Mountains about an hour from Sacramento.

Can anybody help me?

Thanks for taking the time to read this.

Mike Reed


[Non-text portions of this message have been removed]

http://energy.sourceguides.com/businesses/byGeo/US/byS/CA/byB/serv/design/by
P/hydro/hRP.shtml

Try above link to suppliers

Mark Hammonds
Renewable Energy Unit
International Energy Agency
9 Rue de la Federation
F- 75029 Paris Cedex 15
France:
Tel: +33 1 4057 6763
Fax: +33 14057 6759
Web: http://www.iea.org

-----Original Message-----
From: M Reed Enterprises [mailto:mreed@...]
Sent: 03 October 2002 03:40
To: microhydro@yahoogroups.com
Subject: [microhydro] Cannot find help for very small system


I have been searching all over for somebody to help me figure out how to tap
the power of a 5-acre lake on my property that spills (7 months a year) over
a spillway, then passes under a road and forms a waterfall with a drop of
about 30 feet. I will settle for as little as 1 kw in power, which would
just about cover my electrical needs. My house sits right on the lake and
very close to the waterfall and spillway.

I am not looking for a huge project here. I need some help in ascertaining
what can be done. I am in Northern California in the foothills of the Sierra
Nevada Mountains about an hour from Sacramento.

Can anybody help me?

Thanks for taking the time to read this.

Mike Reed


[Non-text portions of this message have been removed]



NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

More information on micro hydropower at http://microhydropower.net

To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Dear group,

Check out this Swedish company with a large selection of used francis and
kaplan turbines, generators, gear boxes, bearings etc.
The turbines has runner diameter 300-2500 mm.

http://www.alfredssonsmaskin.com

Some examples of units for sale:
Kaplan turbine, 1900 kW/5,8 m
Francis turbine, 550 kW/42 m
Francis turbine, 330 kW/56 m
Francis turbine, 73,5 kW/4,5 m
Francis turbine, 70 kW/4 m
etc. etc.


Best regards,

Ola Tambour






_________________________________________________________________
På MSN hittar du det roliga, intressanta och användbara på internet:
http://www.msn.se

Hi Mike,

If you have head of 30feet, you just need about 25lps (about 50 cu feet
minute) you could generate 1kW of power without much problem. If you require
more power, you will just need more water.
Please look up following website to get more information on the systems that
are available: http://www.microhydropower.com,
http://www.energyalternatives.ca, http://www.powerpal.com

If you do have any specific questions or need more information, please do
let me know. I hope this helps.

Ghanashyam

-----Original Message-----
From: M Reed Enterprises [mailto:mreed@...]
Sent: Wednesday, October 02, 2002 9:40 PM
To: microhydro@yahoogroups.com
Subject: [microhydro] Cannot find help for very small system


I have been searching all over for somebody to help me figure out how to tap
the power of a 5-acre lake on my property that spills (7 months a year) over
a spillway, then passes under a road and forms a waterfall with a drop of
about 30 feet. I will settle for as little as 1 kw in power, which would
just about cover my electrical needs. My house sits right on the lake and
very close to the waterfall and spillway.

I am not looking for a huge project here. I need some help in ascertaining
what can be done. I am in Northern California in the foothills of the Sierra
Nevada Mountains about an hour from Sacramento.

Can anybody help me?

Thanks for taking the time to read this.

Mike Reed


[Non-text portions of this message have been removed]



NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

More information on micro hydropower at http://microhydropower.net

To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/

Mike,
Go to our web site, or give us a call, or email us, and we will help you all
we can.

SUNcerely,
Frank Fowler
Crystal Pines Alternative Energy
4408 Pine Cluster Ln. Yankee Hill, CA. 95965-9754
Tel:530-532-1972/Fax:530-532-1359
www.solarenergy-alt.com


[Non-text portions of this message have been removed]

Hi,

Has anyone read, has a copy or know where to get a copy of the: Going with
the flow: Small Scale Water Power Made Simple by author Dan Curtis, Billy
Langley and Richard Ramsey.


This book is aimed at those considering a small (less than 100 kilowatts)
water power scheme. It is also intended to give some useful information for
the general interest reader. History of water power. General principles.
Components of a modern scheme.

If anyone has information would love to hear from them.

Ghanashyam



[Non-text portions of this message have been removed]

I have had many responses to my inquiry about a micro system here in Northern CA
and would like to thank all those who replied.

Mike Reed
   ----- Original Message -----
   From: EcoInn
   To: microhydro@yahoogroups.com
   Sent: Wednesday, October 02, 2002 1:49 PM
   Subject: Re: [microhydro] Request for information on ELC


   Hi

   This company in NZ makes Electronic load controllers

   http://www.powerflow.co.nz/


   Regards


   Michael Lawley
     ----- Original Message -----
     From: sarsing gao
     To: microhydro@yahoogroups.com
     Sent: Wednesday, October 02, 2002 5:59 PM
     Subject: [microhydro] Request for information on ELC


     Dear Colleagues,
     Could anyone help me find materials on Electronic Load
     Controller for small hydro power projects. This is
     required for undergraduate projects in my institute. I
     shall be obliged for the help.
     Thanking you

     Sarsing Gao

     ________________________________________________________________________
     Missed your favourite TV serial last night? Try the new, Yahoo! TV.
            visit http://in.tv.yahoo.com

           Yahoo! Groups Sponsor
                 ADVERTISEMENT




     NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

     More information on micro hydropower at http://microhydropower.net

     To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

     Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



   [Non-text portions of this message have been removed]


         Yahoo! Groups Sponsor
               ADVERTISEMENT




   NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

   More information on micro hydropower at http://microhydropower.net

   To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



[Non-text portions of this message have been removed]

Hi

I've currently 4 properties generating power from water wheels, head range from
1.8m to 4.2m.
If interested in detail email me ecoinn@...

Regards


Michael
   ----- Original Message -----
   From: wknman12
   To: microhydro@yahoogroups.com
   Sent: Thursday, October 03, 2002 12:13 PM
   Subject: [microhydro] Water wheels...use of.


       Hi all forum members...I'm interested in talking with any forum
   members that use water wheels to generate power...Franklin


         Yahoo! Groups Sponsor
               ADVERTISEMENT




   NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

   More information on micro hydropower at http://microhydropower.net

   To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



[Non-text portions of this message have been removed]

Dear sir,
I shall be obliged if you can provide design detail to
fabricate proto type working model of an electronic
load controller suitable for 10 Kw hydro power plant
developed by undergraduate Btech student.
Alok
Birla Institute
Bhimtal(Nainital)India>
> SUNcerely,
> Frank Fowler
> Crystal Pines Alternative Energy
> 4408 Pine Cluster Ln. Yankee Hill, CA. 95965-9754
> Tel:530-532-1972/Fax:530-532-1359
> www.solarenergy-alt.com
>
>
> [Non-text portions of this message have been
> removed]
>
>
>

________________________________________________________________________
Missed your favourite TV serial last night? Try the new, Yahoo! TV.
        visit http://in.tv.yahoo.com

"Kamal Obeid" <kamalobeid@...> would like to raise the following
question to the group:

"
Hello, my question is simple, I need all kind of information about
Mitchel Banki turbines.
Further, I would like to know which companies commercialize it.

Thank you very much. Looking forward to any reaction.
"

Please reply directly to him or to the group if relevant.

Regards,

Wim

Dear Group,

See original message underneath...
Reactions to Mike Reed directly please, with a cc to the group if
relevant.
Wim

-------- Original Message --------
Subject: via hydropage
    Date: Tue, 1 Oct 2002 19:51:31 -0700
    From: "M Reed Enterprises" <mreed@...>
      To: <wim.klunne@...>

Hi - Just visited your site and enjoyed it very much. Can you refer me
to a place where I can get some help in setting up a micropower system
where I live in California, USA? I have a lake and a spillway that
empties into a waterfall with a 30+foot drop. It is all on my property
and near our house. I want to harness the power here and feed it back to
the power company to lower my bills. As little as 1 kw would be very
helpful, so I am not looking to establish a huge system. Thanks for any
help you can give me. Sincerely, Mike
Reedmreed@...@cdepot.net

Hi Michael...can a belt driven ac generator be used with a water wheel? I'm
looking at a catalog from a company that...among other things...sells belt
driven ac generators up to ten thousand watts. On the 10kw model it says it
takes a motor (gasoline) of at least 18 horse power. Will a water wheel drive
one of these? Franklin
   ----- Original Message -----
   From: EcoInn
   To: microhydro@yahoogroups.com
   Sent: Thursday, October 03, 2002 4:14 PM
   Subject: Re: [microhydro] Water wheels...use of.


   Hi

   I've currently 4 properties generating power from water wheels, head range
from 1.8m to 4.2m.
   If interested in detail email me ecoinn@...

   Regards


   Michael
     ----- Original Message -----
     From: wknman12
     To: microhydro@yahoogroups.com
     Sent: Thursday, October 03, 2002 12:13 PM
     Subject: [microhydro] Water wheels...use of.


         Hi all forum members...I'm interested in talking with any forum
     members that use water wheels to generate power...Franklin


           Yahoo! Groups Sponsor
                 ADVERTISEMENT




     NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

     More information on micro hydropower at http://microhydropower.net

     To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

     Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



   [Non-text portions of this message have been removed]



         Yahoo! Groups Sponsor
               ADVERTISEMENT




   NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

   More information on micro hydropower at http://microhydropower.net

   To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



[Non-text portions of this message have been removed]

Dear group,

Up in the Austrian mountain we want to bring electricity in a mountain hut.
There is a small dwell with 1liter per second. A head of 50m or more is
possible.
We also consider photovoltaic system or both. In wintertime there is a lot of
snow and very cold.
Does anybody know a cost and performance comparison table between microhydro and
photovoltaic system?

Thanks for help
Martin from Graz




[Non-text portions of this message have been removed]

Franklin -

What catalog are you looking at, please.

Thanks.

Mike
   ----- Original Message -----
   From: Franklin W. Davis
   To: microhydro@yahoogroups.com
   Sent: Sunday, October 06, 2002 4:04 AM
   Subject: Re: [microhydro] Water wheels...use of.


      Hi Michael...can a belt driven ac generator be used with a water wheel? I'm
looking at a catalog from a company that...among other things...sells belt
driven ac generators up to ten thousand watts. On the 10kw model it says it
takes a motor (gasoline) of at least 18 horse power. Will a water wheel drive
one of these? Franklin
     ----- Original Message -----
     From: EcoInn
     To: microhydro@yahoogroups.com
     Sent: Thursday, October 03, 2002 4:14 PM
     Subject: Re: [microhydro] Water wheels...use of.


     Hi

     I've currently 4 properties generating power from water wheels, head range
from 1.8m to 4.2m.
     If interested in detail email me ecoinn@...

     Regards


     Michael
       ----- Original Message -----
       From: wknman12
       To: microhydro@yahoogroups.com
       Sent: Thursday, October 03, 2002 12:13 PM
       Subject: [microhydro] Water wheels...use of.


           Hi all forum members...I'm interested in talking with any forum
       members that use water wheels to generate power...Franklin


             Yahoo! Groups Sponsor
                   ADVERTISEMENT




       NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.

       More information on micro hydropower at http://microhydropower.net

       To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

       Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



     [Non-text portions of this message have been removed]



           Yahoo! Groups Sponsor
                 ADVERTISEMENT




     NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

     More information on micro hydropower at http://microhydropower.net

     To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

     Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



   [Non-text portions of this message have been removed]



   NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

   More information on micro hydropower at http://microhydropower.net

   To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



[Non-text portions of this message have been removed]

water wheels typically don't have the rpm's to drive ac generators. gearing
can help, but turbines are better suited. I prefer dc, as speed is not
critical, and i'm doing battery charging with an inverter for ac loads.


Steve Spence
Subscribe to the Renewable Energy Newsletter
& Discussion Boards. Read about Sustainable Technology:
http://www.green-trust.org
sspence@...
----- Original Message -----
From: "Franklin W. Davis" <Parsons2@...>
To: <microhydro@yahoogroups.com>
Sent: Sunday, October 06, 2002 7:04 AM
Subject: Re: [microhydro] Water wheels...use of.


>    Hi Michael...can a belt driven ac generator be used with a water wheel?
I'm looking at a catalog from a company that...among other things...sells
belt driven ac generators up to ten thousand watts. On the 10kw model it
says it takes a motor (gasoline) of at least 18 horse power. Will a water
wheel drive one of these? Franklin
>   ----- Original Message -----
>   From: EcoInn
>   To: microhydro@yahoogroups.com
>   Sent: Thursday, October 03, 2002 4:14 PM
>   Subject: Re: [microhydro] Water wheels...use of.
>
>
>   Hi
>
>   I've currently 4 properties generating power from water wheels, head
range from 1.8m to 4.2m.
>   If interested in detail email me ecoinn@...
>
>   Regards
>
>
>   Michael
>     ----- Original Message -----
>     From: wknman12
>     To: microhydro@yahoogroups.com
>     Sent: Thursday, October 03, 2002 12:13 PM
>     Subject: [microhydro] Water wheels...use of.
>
>
>         Hi all forum members...I'm interested in talking with any forum
>     members that use water wheels to generate power...Franklin
>
>
>           Yahoo! Groups Sponsor
>                 ADVERTISEMENT
>
>
>
>
>     NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.
>
>     More information on micro hydropower at http://microhydropower.net
>
>     To unsubscribe: send empty message to
microhydro-unsubscribe@eGroups.com
>
>     Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
>
>
>
>   [Non-text portions of this message have been removed]
>
>
>
>         Yahoo! Groups Sponsor
>               ADVERTISEMENT
>
>
>
>
>   NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.
>
>   More information on micro hydropower at http://microhydropower.net
>
>   To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com
>
>   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
> NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.
>
> More information on micro hydropower at http://microhydropower.net
>
> To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>

microhydro is preferable if you have the head, and all year performance.
solar is much more variable.

Steve Spence
Subscribe to the Renewable Energy Newsletter
& Discussion Boards. Read about Sustainable Technology:
http://www.green-trust.org
sspence@...
----- Original Message -----
From: "Martin Schwingenschuh" <martin.schwingenschuh@...>
To: <microhydro@yahoogroups.com>
Cc: <martin.schwingenschuh@...>
Sent: Sunday, October 06, 2002 2:08 PM
Subject: [microhydro] microhydro versus solar


> Dear group,
>
> Up in the Austrian mountain we want to bring electricity in a mountain
hut. There is a small dwell with 1liter per second. A head of 50m or more is
possible.
> We also consider photovoltaic system or both. In wintertime there is a lot
of snow and very cold.
> Does anybody know a cost and performance comparison table between
microhydro and photovoltaic system?
>
> Thanks for help
> Martin from Graz
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
> NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.
>
> More information on micro hydropower at http://microhydropower.net
>
> To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>

PV  vs.  MICROHYDRO

    The answer as to whether photovoltaic (PV) power or microhydro power is
preferable depends on the use for which the power is intended.

    We use a microhydro unit, a Watermotor, producing about 2.5 hp to run a
small industrial grain mill. Sometimes the same Watermotor is used to drive
a multi-purpose woodworking machine, a compressor, and even an alternator.
The turbine drives these machines directly with a belt and pully
connection. This is practical(and safe) because the turbine has an on/off
power control switch. Therefore it can be used as easily as an electric motor.
   Our waterpower installation cost about $1500 U.S., (not including the
grain mill, etc). The cost is low because the waterpower is being used
directly as mechanical power. We have a 18.3m fall. The penstock is 50
meters of low pressure 4" plastic tube, and a $700 Watermotor model 150.

   Richard Perez of Home Power Magazine (June July '99, #71) estimated that
to obtain this same amount of power from a PV system would cost about
$80,000 U.S. This price, of course, does not include shipping costs to
Bolivia or import duty.
   There is also the question of who would be responsible for maintaining
such a system. And when it breaks?
  In short--it's simply not practical.


   On the other hand, over the last couple of weeks we installed a l.e.d
based lighting system to two rural villages.
This system only requires 3 50 watt solar panels to provide electricity for
2 one-watt l.e.d.s per house, for 70 houses. The cost was quite reasonable,
perhaps $50 per house, and will get lower as the price of the new 1 watt
l.e.d.s goes down.
    The general answer is that PV is most practical for what electricity
does best--lights, radio, small battery charging, cell phones.

   But if you want to grind grain, or run a table saw, you can forget PV.

           Ron Davis,
                      www.watermotor.net











At 15:43 02/10/06 -0400, you wrote:
>microhydro is preferable if you have the head, and all year performance.
>solar is much more variable.
>
>Steve Spence
>Subscribe to the Renewable Energy Newsletter
>& Discussion Boards. Read about Sustainable Technology:
>http://www.green-trust.org
>sspence@...
>----- Original Message -----
>From: "Martin Schwingenschuh" <martin.schwingenschuh@...>
>To: <microhydro@yahoogroups.com>
>Cc: <martin.schwingenschuh@...>
>Sent: Sunday, October 06, 2002 2:08 PM
>Subject: [microhydro] microhydro versus solar
>
>
>> Dear group,
>>
>> Up in the Austrian mountain we want to bring electricity in a mountain
>hut. There is a small dwell with 1liter per second. A head of 50m or more is
>possible.
>> We also consider photovoltaic system or both. In wintertime there is a lot
>of snow and very cold.
>> Does anybody know a cost and performance comparison table between
>microhydro and photovoltaic system?
>>
>> Thanks for help
>> Martin from Graz
>>
>>
>>
>>
>> [Non-text portions of this message have been removed]
>>
>>
>>
>>
>> NOTE: The advertisements in this email are added by Yahoogroups who
>provides us with free email group services. The microhydro-group does not
>endorse products or support the advertisements in any way.
>>
>> More information on micro hydropower at http://microhydropower.net
>>
>> To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com
>>
>> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>>
>>
>>
>
>
>
>
>NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.
>
>More information on micro hydropower at http://microhydropower.net
>
>To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>

Mike,
Please visit the website I have, www.microhydropower.com and you can see
there what we are up to. If you care to visit the mining museam in Grass
Valley, you can see a small machine of mine that operates as a demo. There
are other turbines at this location too. It soulds like you have a site
where my equipment may be useable. Where exactly do you live? My father
lives in Penn Valley and I visit the area at least once a year.
Regards, Paul Cunningham



----- Original Message -----
From: M Reed Enterprises <mreed@...>
To: <microhydro@yahoogroups.com>
Sent: Wednesday, October 02, 2002 10:40 PM
Subject: [microhydro] Cannot find help for very small system


> I have been searching all over for somebody to help me figure out how to
tap the power of a 5-acre lake on my property that spills (7 months a year)
over a spillway, then passes under a road and forms a waterfall with a drop
of about 30 feet. I will settle for as little as 1 kw in power, which would
just about cover my electrical needs. My house sits right on the lake and
very close to the waterfall and spillway.
>
> I am not looking for a huge project here. I need some help in ascertaining
what can be done. I am in Northern California in the foothills of the Sierra
Nevada Mountains about an hour from Sacramento.
>
> Can anybody help me?
>
> Thanks for taking the time to read this.
>
> Mike Reed
>
>
> [Non-text portions of this message have been removed]
>
>
>
> NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.
>
> More information on micro hydropower at http://microhydropower.net
>
> To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>

Martin,
My company is in the process of introducing a new smaller model that with
your site specs can produce about 250 watts. We are presently sending out
some machines for testing to various people.  I don't think there is much
point in comparing this to solar as the hydro should be far more cost
effective. There is not as yet any info on this machine on our website
(www.microhydropower.com) but you may find it of interest for covering
smaller machines.
Regards, Paul Cunningham




----- Original Message -----
From: Martin Schwingenschuh <martin.schwingenschuh@...>
To: <microhydro@yahoogroups.com>
Cc: <martin.schwingenschuh@...>
Sent: Sunday, October 06, 2002 3:08 PM
Subject: [microhydro] microhydro versus solar


> Dear group,
>
> Up in the Austrian mountain we want to bring electricity in a mountain
hut. There is a small dwell with 1liter per second. A head of 50m or more is
possible.
> We also consider photovoltaic system or both. In wintertime there is a lot
of snow and very cold.
> Does anybody know a cost and performance comparison table between
microhydro and photovoltaic system?
>
> Thanks for help
> Martin from Graz
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
>
> NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.
>
> More information on micro hydropower at http://microhydropower.net
>
> To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>

Hi,

It's all to do with gearing, as generators require speeds of at least 1400 rpm,
this means that you need a gearbox ratio of around 140:1.

To transmit say 10kw at 10 rpm from the wheel you would need a shaft over 100mm
in diameter. All the equipment starts to get very big and heavy. Suggest you
consider using a cross-flow turbine as these will be smaller and run at higher
speeds hence reducing the size of the gear box.

10 Kw is a lot of power, what do you wish to do with it all? You would need a
lot of water, over 100 gallons/s over a 3m wheel. This wheel would be very wide
in order to handle this volume of water.

I do not recommend water-wheesl for more than 2kw of power output.

Regards

Michael

   ----- Original Message -----
   From: Franklin W. Davis
   To: microhydro@yahoogroups.com
   Sent: Monday, October 07, 2002 12:04 AM
   Subject: Re: [microhydro] Water wheels...use of.


      Hi Michael...can a belt driven ac generator be used with a water wheel? I'm
looking at a catalog from a company that...among other things...sells belt
driven ac generators up to ten thousand watts. On the 10kw model it says it
takes a motor (gasoline) of at least 18 horse power. Will a water wheel drive
one of these? Franklin
     ----- Original Message -----
     From: EcoInn
     To: microhydro@yahoogroups.com
     Sent: Thursday, October 03, 2002 4:14 PM
     Subject: Re: [microhydro] Water wheels...use of.


     Hi

     I've currently 4 properties generating power from water wheels, head range
from 1.8m to 4.2m.
     If interested in detail email me ecoinn@...

     Regards


     Michael
       ----- Original Message -----
       From: wknman12
       To: microhydro@yahoogroups.com
       Sent: Thursday, October 03, 2002 12:13 PM
       Subject: [microhydro] Water wheels...use of.


           Hi all forum members...I'm interested in talking with any forum
       members that use water wheels to generate power...Franklin


             Yahoo! Groups Sponsor
                   ADVERTISEMENT




       NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.

       More information on micro hydropower at http://microhydropower.net

       To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

       Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



     [Non-text portions of this message have been removed]



           Yahoo! Groups Sponsor
                 ADVERTISEMENT




     NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

     More information on micro hydropower at http://microhydropower.net

     To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

     Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



   [Non-text portions of this message have been removed]



   NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

   More information on micro hydropower at http://microhydropower.net

   To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



[Non-text portions of this message have been removed]

Hi Mike...the AC belt driven generators are in the 2002 Fall Master Catalog
from Northern Tool and Equipment Co. out of Burnsville,Mn. page 7 in the
generator section.
   ----- Original Message -----
   From: M Reed Enterprises
   To: microhydro@yahoogroups.com
   Sent: Sunday, October 06, 2002 3:41 PM
   Subject: Re: [microhydro] Water wheels...use of.


   Franklin -

   What catalog are you looking at, please.

   Thanks.

   Mike
     ----- Original Message -----
     From: Franklin W. Davis
     To: microhydro@yahoogroups.com
     Sent: Sunday, October 06, 2002 4:04 AM
     Subject: Re: [microhydro] Water wheels...use of.


        Hi Michael...can a belt driven ac generator be used with a water wheel?
I'm looking at a catalog from a company that...among other things...sells belt
driven ac generators up to ten thousand watts. On the 10kw model it says it
takes a motor (gasoline) of at least 18 horse power. Will a water wheel drive
one of these? Franklin
       ----- Original Message -----
       From: EcoInn
       To: microhydro@yahoogroups.com
       Sent: Thursday, October 03, 2002 4:14 PM
       Subject: Re: [microhydro] Water wheels...use of.


       Hi

       I've currently 4 properties generating power from water wheels, head range
from 1.8m to 4.2m.
       If interested in detail email me ecoinn@...

       Regards


       Michael
         ----- Original Message -----
         From: wknman12
         To: microhydro@yahoogroups.com
         Sent: Thursday, October 03, 2002 12:13 PM
         Subject: [microhydro] Water wheels...use of.


             Hi all forum members...I'm interested in talking with any forum
         members that use water wheels to generate power...Franklin


               Yahoo! Groups Sponsor
                     ADVERTISEMENT




         NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.

         More information on micro hydropower at http://microhydropower.net

         To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

         Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



       [Non-text portions of this message have been removed]



             Yahoo! Groups Sponsor
                   ADVERTISEMENT




       NOTE: The advertisements in this email are added by Yahoogroups who
provides us with free email group services. The microhydro-group does not
endorse products or support the advertisements in any way.

       More information on micro hydropower at http://microhydropower.net

       To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

       Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



     [Non-text portions of this message have been removed]



     NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

     More information on micro hydropower at http://microhydropower.net

     To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

     Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



   [Non-text portions of this message have been removed]



   NOTE: The advertisements in this email are added by Yahoogroups who provides
us with free email group services. The microhydro-group does not endorse
products or support the advertisements in any way.

   More information on micro hydropower at http://microhydropower.net

   To unsubscribe: send empty message to microhydro-unsubscribe@eGroups.com

   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.



[Non-text portions of this message have been removed]

Depends on the number of poles. For 60 cycle power a cheap 2 pole alternator
requires 3600 RPM.
A 4 pole requires 1800 and a 6 pole 1200. Larger alternators are available
with more than 6 poles but at only 10kW probably not as that is not anywhere
near large.
For 50 cycle power only 5/6 of those speeds is required.

The unit you are looking at is probably 4 pole. When you look at 3kW or
smaller then 2 pole is what you usually find.
A good discussion of this and power factor etc. is in Hawkins
http://www.innerlodge.com/Energy/Micro_Cogeneration/
The viewer DjVuSolo3.1.exe (also at that URL) is required if you don't have
the Deja plugin in your browser.

Kirk

-----Original Message-----
From: EcoInn [mailto:ecoinn@...]
Sent: Sunday, October 06, 2002 1:45 PM
To: microhydro@yahoogroups.com
Subject: Re: [microhydro] Water wheels...use of.


Hi,

It's all to do with gearing, as generators require speeds of at least 1400
rpm, this means that you need a gearbox ratio of around 140:1.

To transmit say 10kw at 10 rpm from the wheel you would need a shaft over
100mm in diameter. All the equipment starts to get very big and heavy.
Suggest you consider using a cross-flow turbine as these will be smaller and
run at higher speeds hence reducing the size of the gear box.

10 Kw is a lot of power, what do you wish to do with it all? You would need
a lot of water, over 100 gallons/s over a 3m wheel. This wheel would be very
wide in order to handle this volume of water.

I do not recommend water-wheesl for more than 2kw of power output.

Regards

Michael

   ----- Original Message -----
   From: Franklin W. Davis
   To: microhydro@yahoogroups.com
   Sent: Monday, October 07, 2002 12:04 AM
   Subject: Re: [microhydro] Water wheels...use of.


      Hi Michael...can a belt driven ac generator be used with a water wheel?
I'm looking at a catalog from a company that...among other things...sells
belt driven ac generators up to ten thousand watts. On the 10kw model it
says it takes a motor (gasoline) of at least 18 horse power. Will a water
wheel drive one of these? Franklin
     ----- Original Message -----
     From: EcoInn
     To: microhydro@yahoogroups.com
     Sent: Thursday, October 03, 2002 4:14 PM
     Subject: Re: [microhydro] Water wheels...use of.