Project: Solar Water Pump for Loiborsoit Concept Version 3.0: March

ENKAINA-E-RETOTO
(helping hand)
c/o K. Armbruster
Hohlstrasse 421
8048 Zürich
Project: Solar Water Pump for Loiborsoit
Concept
Version 3.0: March-31-2014
Background
The existing water pump driven by a Diesel generator in Loiborsoit TZ serves as the main supply of
water for the inhabitants of Loiborsoit TZ during dry periods. 300 to 500 Maasai women cue there
daily in order to get 40 to 60 liters of water for their families. The flow rate of the existing water
pump is approximately 24,000 liters / day (based on a daily generator operation time of 20h-24h).
A cistern with approx. 40,000 liter capacity is also available. The system was installed in 1993 by a
Swedish aid organization (SSL). Today the system has to be regarded as obsolete and worn out.
The system was out of service for longer periods and had to be revised at several occasions. A
replacement of the whole system is necessary within the next future.
Idea
In the course of a visit of Dario Schwoerer from TOP TO TOP in July 2011 the idea of installing an
environmental friendly solar driven system was created. Discussions with the village authorities,
the local population and the leaders of SSL confirmed by the end of 2012 that this idea should be
realized. In January 2013 the feasibility was discussed with possible project partners from TOP TO
TOP and Medici Engineering GmbH. It was decided to initiate the project and it was agreed on the
basic concept and layout of the system.
Aim
The aim of the project is to replace the existing water pump including diesel driven generator in
Loiborsoit TZ with a solar driven water pump system.
System parameters
In a first concept it was the idea, to use a combined solar-battery system that can on one hand
supply any standard 230V equipment and also could run a submersible water pump. This system
was intended to be based on the Enda Solar solution ESB-6500.
However during the project it was decided to start with a smaller investment, as the main focus is
on water pumping and not on energy supply. Water pumping can be done with a combination of
solar modules, a controller box and a submersible DC-pump:
Project
Solar Water Pump for Loiborsoit
Version 3.0
March-31-2014
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Borehole Basic Data
The borehole has the following specification:
Borehole depth:
Static water level:
Quantity yield:
Total pumping height:
120 m
97 m
2.8 m3/h
114 m
Further it was defined, that the requirement is to pump around 20 m3 per day (20’000 Liters) in order to keep at least the current status.
Pump Selection and System Engineering
It was agreed to use Swiss / European technology in order to guarantee good quality and a longlife cycle.
The pump selection and system engineering was done by Enda Solar Ltd. (which is based in
Arusha TZ and is operated by Swiss technicians) in coordination with the local supplier Davis &
Shirtliff. For the engineering both companies used the software “Compass” from the pump vendor
Lorentz. The detail report is attached to this concept (see page 7 - 10).
Water pump
Make: Lorentz
Typ and Model: PS4000 C-SJ5-25
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Project
Solar Water Pump for Loiborsoit
Version 3.0
March-31-2014
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To get the daily pumping performance of 20 m3, the following solar field is needed:
Solar panels from Meyer Burger:
Additional solar panels from Enda Solar
Total Watt Peak from the Solar field
Total 10 panels:
8 mono and 2 polycristalline 60 cell modules,
Type 3s Standard "sky" 225W
6 polycristalline 60 cell modules
Type Trina Honey TSM-PC05A 260 W
3’810 W
The total 10 solar panels of Meyer Burger Technology AG, Lyss, CH were provided as a donation
by Jürg Zahnd (member of TOP TO TOP)
The 16 modules will be connected in two strings. Each string is a combination of
1 x 3S poly 225W + 4 x 3S mono 225W + 3 x Trina poly 260W
It will be not optimal to combine different types of modules, but the specification of the modules
allows this combination, as their current specifications are almost the same (7.9A at 3S and 8.5A at
Trina). It will be necessary to measure the actual voltage and current, once the modules are installed. Mainly it has to be checked, if with the given solar modules, the recommended minimum
Voltage for the controller of 238 V can be reached. If the Voltage is too low, the pump will not work
in its optimal power range. Then we recommend to buy and install two additional Trina modules.
Budget
Costs in US $
Solar panels Meyer Burger (only transport and taxes)
6 additional solar panels (Enda Solar)
Water pump
Controller, sensor, drop cable 10mm2 and electrode cable etc.
Plastic tubes (Idara ya Maji)
Installation of water pump and tubes (Idara ya Maji)
Infrastructure (frames for solar modules etc.)
Transport and taxes
Contingencies
(additional system components, additional transport, ....)
Total
Funding in US $
Promised donation by TOP TO TOP (unsettled)
Private donation to ENKAINA-E-RETOTO (settled)
Income from first donation call by ENKAINA-E-RETOTO in November 2013 (settled)
Promised contribution by the village of Loiborsoit (unsettled)
Promised donation SSL (unsettled)
Crowdfunding (www.wemakeit.ch - unsettled)
Total
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http://www.massailand.com
1,000.2,500.3,380.4,620.700.3,800.2,500.1,500.2,000.-
22,000.-
5,000.5,000.4,500.2,500.2'300,2'700.22,000.-
Project
Solar Water Pump for Loiborsoit
Version 3.0
March-31-2014
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Responsibility
A "water committee" will be set up whose responsibility will be for the solar pump system. The 5 to
7 members of the committee will be appointed by the project partners and the village of Loiborsoit.
Ownership, reimbursement and running costs
The complete system will be owned by the community of Loiborsoit after their contribution according to the budget has been made. No further reimbursement is being looked for. The system must
be operated in such way, that all running costs, reserves for contingencies and possible future investments can be covered. This means that also in the future pumped water will not be available
for free. An appropriate fee that is based on the existing one (e.g. 100TSH for 20 liters) has to be
payed by all users.
Details regarding the financial topics such as fees for water, payment system (cash, payment in
kind, accounting, ….) will be arranged and supervised by the Loiborsoit Water Committee. These
details will be fixed in a contract between the community of Loiborsoit and ENKAINA-E-RETOTO
on behalf of all remaining stakeholders. This has to be done in a transparent way.
Maintenance and operational concept
The system shall be operated by the community of Loiborsoit. The administration of Loiborsoit provided already a list with possible suitable candidates for the technical support. The nomination of
the person(s) who will be definitely responsible for the system maintenance will be taken on site by
the technicians of Enda Solar.
Enda Solar together with ENKAINA-E-RETOTO will provide ongoing support of operation, maintenance and consulting. It is proposed that this service will be fixed by a contract.
The water supply system can be controlled and monitored directly from Europe, so e.g. running
time, water quantities etc. will be known. In addition the system can be switched off and disconnected via remote control from Europe. With this it is possible to apply a certain pressure on the
responsible persons to run the system in a proper way: technically as well as operationally and
financially.
It is planned that the installed solar system initially will provide energy exclusively for the operation
of the solar pump. After the successful operation over a certain period (e.g. minimum 1 year) and
on basis of the experience made within this time the connection of more users (shops, school, corn
mill, ….) to the system and the addition of a battery system will be envisaged as a second step.
This will be organized within a separate project.
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http://www.massailand.com
Project
Solar Water Pump for Loiborsoit
Version 3.0
March-31-2014
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Realization
Medici Engineering GmbH is responsible for the transport and installation of the system. The solar
panels donated by Jürg Zahnd (TOP TO TOP) were transported by Urs Ruggli Mat Transport AG,
Pratteln. Enkaina-e-retoto financed the shipping costs (included in budget). The panels arrived in
March 2014 at Enda Solar close to Arusha TZ and are thus ready for installation.
The effective date for completion of installation can be fixed when the following open points are
arranged:




Funding completed (Markus Heeb, Ulf Haake, Dario Schwoerer, Gabriella Bolliger)
Infrastructure available in Loiborsoit (Lengai Salash Ngulik, Barbara Schachenmann)
Installation crew on site (Lengai Salash Ngulik, Barbara Schachenmann, John Laswai)
Loiborsoit Water Committee nominated (Markus Heeb, Ulf Haake, Lengai Salash Ngulik, village
authority)
Timetable
Action
Transport of the solar panels to
Tanzania
Clarification of borehole details
Definition of pump details
Distribution of project proposal V1.2
Feedback to project proposal V1.2
Negotiations with community
Water pump paid
Preparation of infrastructure
Distribution of project proposal V2.0
Feedback to project proposal V2.0
Final project description V3.0
Distribution of final project proposal
Crowdfunding
Funding completed
Installation begin
Final definition of operational concept, nomination of Loiborsoit Water
Committee, signing of contracts
Begin of training for technical staff
Begin of operation
Who
Jürg / Alessandro / U. Ruggli /
Barbara
Barbara / Lengai
Alessandro / Robert
Markus / Dario
All
Markus / Lengai / Barbara
Lengai / Barbara
Lengai / Barbara / Alessandro
Robert / Markus
All
Markus / Robert
Markus / Dario
Tina / Markus
Markus / Dario / Lengai
Lengai / John / Barbara
Lengai / Barbara / Markus / Ulf
/ village authority
When
Finished March 2014
Barbara / John
All
Mid 2014
Mid 2014
Finished November 2013
Finished November 2013
Finished November 2013
Finished November 2013
Started December 2013
Finished February 2014
Started March 2014
Finished March 2014
Finished March 2014
Finished March 2014
April 2014
April 2014
April 2014
from April 2014
May 2014
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Project
Solar Water Pump for Loiborsoit
Version 3.0
March-31-2014
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Project partners
Project leader
Alessandro Medici
Medici Engineering GmbH
Untere Wasengasse 31
CH-5080 Laufenburg
phone: +41 76 219 88 11
[email protected]
Project coordination
Markus Heeb
Robert Widmann
Tina Hoffmann
ENKAINA-E-RETOTO
c/o K. Armbruster
Hohlstrasse 421
CH-8048 Zürich
phone: +41 78 809 52 75
[email protected]
Support and coordination of donation
Inga-Britt Fors
Ulf Haake
SSL - (Strangnas Simanjiro Loiborsoit)
Friendship Association, Strangnas, Sweden
phone: +46 73 158 21 43
[email protected]
Support and coordination of donation
Dario Schwoerer
Gabriella Bolliger
TOP TO TOP
c/o Gabriella Bolliger
Pappelweg 5
CH-2560 Nidau
phone: +41 32 333 20 25
[email protected]
Supply of solar panels
Jürg & Silvia Zahnd (member of TOP TO TOP)
Jürg und Silvia Zahnd
Schulweg 15
CH-3427 Utzenstorf
Tel.: +41 32 665 16 45
[email protected]
Local coordination
Lengai Salash Ngulik
ENKAINA-E-RETOTO
c/o Lengai Salash Ngulik
P.O.BOX 12696
ARUSHA-TANZANIA
Phone: +255 78 490 45 70
[email protected]
Installation of water pump
Patrick Sosthenes
Idara ya Maji / Davis & Shirtliff
P.O.BOX 10755
ARUSHA-TANZANIA
phone: +255 75 320 82 59
[email protected]
Local coordination and installation of solar panels
Barbara Schachenmann
John Laswai
Enda Solar Ltd
P.O.BOX 117
ARUSHA-TANZANIA
phone: +255 78 756 32 20
[email protected]
Village Authority
Yohana Shinini (Chair men)
Paulo Shepi (Executive)
Mamlaka ya Serikali ya Kijiji cha
Loiborsoit / W Simanjiro
P.O.BOX 3060
ARUSHA-TANZANIA
phone: +255 78 421 68 08
For more Informations about our projects in Maasailand/Tanzania look at our homepage:
http://www.massailand.com
Project
Solar Water Pump for Loiborsoit
Version 3.0
March-31-2014
Page 7 / 10
Annäherung an die wirkliche Modulwerte, da eine
Kombination verschiedener
Module in der Software
nicht möglich
For more Informations about our projects in Maasailand/Tanzania look at our homepage:
http://www.massailand.com
Project
Solar Water Pump for Loiborsoit
Version 3.0
March-31-2014
For more Informations about our projects in Maasailand/Tanzania look at our homepage:
http://www.massailand.com
Page 8 / 10
Project
Solar Water Pump for Loiborsoit
Version 3.0
March-31-2014
For more Informations about our projects in Maasailand/Tanzania look at our homepage:
http://www.massailand.com
Page 9 / 10
Project
Solar Water Pump for Loiborsoit
Version 3.0
March-31-2014
For more Informations about our projects in Maasailand/Tanzania look at our homepage:
http://www.massailand.com
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