Solar Resource Mapping in Tanzania
SITE INSTALLATION REPORT
December 2015
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This report was prepared by the consultants listed on the following pages, under contract to The World
Bank.
It is one of several outputs from the solar
Resource Mapping and Geospatial Planning Tanzania [Project ID: P145287]. This activity is funded and
supported by the Energy Sector Management Assistance Program (ESMAP), a multi-donor trust fund
administered by The World Bank, under a global initiative on Renewable Energy Resource Mapping. Further
details on the initiative can be obtained from the ESMAP website.
This document is an interim output from the above-mentioned project. Users are strongly advised to exercise caution when utilizing the information and data contained, as this has not been subject to full peer review. The final, validated, peer reviewed output from this project will be the Tanzania Solar Atlas, which will be published once the project is completed.
Copyright © 2015 International Bank for Reconstruction and Development / THE WORLD BANK
Washington DC 20433
Telephone: +1-202-473-1000
Internet: www.worldbank.org
This work is a product of the consultants listed, and not of World Bank staff. The findings, interpretations,
and conclusions expressed in this work do not necessarily reflect the views of The World Bank, its Board of
Executive Directors, or the governments they represent.
The World Bank does not guarantee the accuracy of the data included in this work and accept no
responsibility for any consequence of their use. The boundaries, colors, denominations, and other
information shown on any map in this work do not imply any judgment on the part of The World Bank
concerning the legal status of any territory or the endorsement or acceptance of such boundaries.
The material in this work is subject to copyright. Because The World Bank encourages dissemination of its
knowledge, this work may be reproduced, in whole or in part, for non-commercial purposes as long as full
attribution to this work is given. Any queries on rights and licenses, including subsidiary rights, should be
addressed to World Bank Publications, The World Bank Group, 1818 H Street NW, Washington, DC 20433,
USA; fax: +1-202-522-2625; e-mail: [email protected]. Furthermore, the ESMAP Program Manager
would appreciate receiving a copy of the publication that uses this publication for its source sent in care of
the address above, or to [email protected].
Renewable Energy Resource Mapping. Solar Tanzania.
(Project ID: P145287)
Site Installation Report Dar es Salaam.
December, 2015
Renewable Energy Resource Mapping: Tanzania. Phase 2 Site Installation
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Table of contents
1 INTRODUCTION .................................................................................................................................................. 5
2 SITE DESCRIPTION .............................................................................................................................................. 5
3 AUTOMATIC WEATHER STATION CONFIGURATION ............................................................................................ 7
3.1 AWS SETUP ........................................................................................................................................................ 7
3.2 SCOPE OF THE SUPPLY ........................................................................................................................................... 11
3.3 COMMUNICATION TESTS. ....................................................................................................................................... 13
3.4 WIRING DIAGRAM OF THE AWS .............................................................................................................................. 13
4 SUMMARY OF THE INSTALLATION OF AWS .......................................................................................................15
ANNEX 1. CALIBRATION CERTIFICATES OF SENSORS AND DATA LOGGER ..............................................................18
ANNEX 2. ADDITIONAL PICTURES OF THE PHOTOS. ..............................................................................................34
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1 INTRODUCTION
On May, 20, 2015, two senior technicians of the company, GEONICA, traveled to Dar es Salaam city to install the
Automatic Weather Station supplied to the Solar Consortium led by CENER, inside the ESMAP Project with ID:
P145287 and Selection # 1139235.
The objective was to install an Automatic Weather Station in the installations of the University of Dar es Salaam
(UDSM) as a part of the Phase 2 of the project. This is the first installation that the consortium is doing in Tanzania.
2 SITE DESCRIPTION
The emplacement identified is sited on the rooftop space above the main of the physics department building. The
campus is sited in Ubungo district of the Dar es Salaam City.. Fig 1 contains the aerial view of the campus and the red
circle signs the exact point of the emplacement. The site is currently specifically provisioned for meteorological
monitoring equipment.
Fig 1 Aerial view.
Fig 2 Details of the rooftop space to do the installation of the AWS type TIER 1.
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The exact coordinates of the Automatic Weather station Type TIER1 are the following:
Latitude 06º 46’ 51,9” S
Longitude 39º 12’ 14,0” E
Altitude above the sea level 122m
In the horizon analysis made in the site visits, it is determined that none critical obstacles are presented. Directly to the
east and west, in the middle distance, there are isolated trees whose crowns reach to an angle of 5˚ above the horizon
in both cases. The panoramic picture from the emplacement can be seen in Fig 3
Fig 3 Site Panorama
The other conditions that affect the suitability of the emplacement are all of them favourable
Dust: No nearby sources of dust; the campus is vegetated and surrounds the building for kilometres on all sides.
Access for O&M: The roof is easily accessed by spiral staircase, and is wide, flat and fitted with safety rails.
Heat Interference: None likely; the rooftop is isolated from its surroundings by plenty of open space.
Security: The University compound is guarded. The roof is accessible from the main building, and the access door
can be locked.
Future Interferences: There are no plans for new building works in the immediate vicinity of the emplacement,
Communications: There is 3G network coverage noted for Vodacom, Airtel, Zantel, Tigo.
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3 AUTOMATIC WEATHER STATION CONFIGURATION
3.1 AWS SETUP
According to World Bank’s requirements for the Energy Sector Management Assistance Program (from now on
ESMAP) the Automatic Weather Station (from now on AWS) type TIER1 has to provide the highest accuracy
measurements, and use thermopile radiometers to measure all three components (GHI, DNI, and DIF). The sensors
chosen for the GHI and DIF measurements must meet ISO 9060:1990 Secondary Standards. The sensors chosen for
the DNI measurements must meet at least ISO9060:1990 First Class.
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Fig 4 Summary of Pyranometers operational characteristics.
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Fig 5 Summary of Pyrheliometer Operational Characteristics.
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AWS type TIER1 includes an automatic solar tracker where the pyrheliometer and one pyranometers with a shadow
band kit will be mounted in order to obtain DNI measurements and diffuse measurements respectively.
AWS type TIER 1 will also include air temperature, relative humidity, barometric pressure and wind speed and
direction sensors
Table 1 AWS type TIER 1 configuration and serial numbers
ITEM BRAND MODEL SERIAL NUMBER
Data logger GEONICA (SPAIN) Meteodata 3008CM 882
Wind speed & wind direction
sensor R.M. YOUNG (USA) 03002 13394
Air temperature and Relative
Humidity sensor GEONICA (SPAIN) STH-S331 313
Air pressure sensor R.M. YOUNG (USA) 61302V 9028
Direct solar radiation sensor HUKSEFLUX (THE
NETHERLANDS)
DR-01 8362
Diffuse solar radiation sensor HUKSEFLUX (THE
NETHERLANDS)
SR-20 3681
Global solar radiation sensor HUKSEFLUX (THE
NETHERLANDS)
SR-20 3685
Solar tracker and shadow band
kit
GEONICA (SPAIN) SUNTRACKER-2000 0166
GPS GARMIN (USA) 19X 2J5021092
SOLAR PANEL ATERSA (SPAIN) 95Wp N1041306004155
METEOROLOGICAL TOWER TELEVÉS TM180-03 -
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3.2 Scope of the supply
Below it is displayed the total scope of the supply including the main sensor and equipment and the main
communications options included.
ITEM QTY DESCRIPTION
1
METEOROLOGICAL DATA ACQUISITION UNITS “METEODATA”
1.1
1
Model METEODATA–3008CM. Remote Automatic Data Acquisition and Transmission Unit, teleprogrammable; total compact mount in a heavy duty weatherproof Metallic housing (Protection IP-66;
dimensions 43x33x20cm).
1.2
1 Model GEONICA SUITE. Software Package has been developed by GEONICA for the storage and processing
of data received from the Remote Data Acquisition and Transmission Stations METEODATA 2000/3000C Series.
2
OPTIONS FOR THE REMOTE STATIONS 3000C SERIES
2.1
1
Option “VT”. alphanumeric display (LCD) 4x20 characters, with integrated 18 key membrane keypad
mounted on a frontal internal door
2.2
1
Option “GPS”. Built-in internal or external GPS receiver with antenna and cable, for very precise clock
synchronization of the internal clock of the Solar Station (UTC Timing) as well as its positioning ( geographical coordinates).
3
OPTIONS FOR DATA AND IMAGE TRANSMISSION (COMMUNICATIONS) FROM THE REMOTE
STATION TO ONE OR MORE CENTRAL STATIONS (NETWORK OPERATION )
3.1
1
Option “GPRS-IP”. Built-in GPRS cellular modem with IP interfaces circuit (Internet, Intranet, VPN), antenna
and cable.
3.2
1
Option “VipService-4K” Geonica’s Virtual IP Service that enables communication between Data Receiving
Center with the Remote Station regardless the operator SIM/RUIM features (IP address private, static or dynamic) allowing full featured communications with all mobile operators supplying Internet access SIM/RUIM cards over the world.
3.3
1
Option “Ethernet” for direct connection to Ethernet networks, SCADAS, etc. Includes RJ45 connector.
4
OTHER OPTIONAL ACCESSORIES FOR MOUNTING AND INSTALLATION OF THE REMOTE STATION
MODEL METEODTA- 3000C AND SENSORS
4.1
1
Set of interconnecting cables for connecting the selected sensors to the Data Acquisition Unit 3000C Series
(Standard configuration)
4.2
1
A-95. Solar Panel 95W peak power (4.8A) For recharging internal Battery of the 3000C Station
4.3
1
E-1. Solar Panel Support (Aluminium assembly)
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ITEM QTY DESCRIPTION 4.4 1 Model TM-180-03. Wind-bracing trestle tower of 3 m. height (plus length of the upper mast )
Includes: adjustable upper tubular mast of 1.5 m in length, pedestal to fix or flush mounted in concrete basement and other mounting accessories. It is supplied in stackable sections of 3 m long, triangular section of 180 mm of side and made with steel galvanized painted by primer and lacquer baked (white RAL 9002)
5
METEOROLOGICAL SENSORS TO BE CONNECTED TO THE COMPACT DATA ACQUISITION AND
TRANSMISSION STATION 3000C SERIES
5.1
THERMOELECTRIC GLOBAL SOLAR RADIATION SENSORS
5.1.1
2
Model GEO-SR20 Thermoelectric Pyranometer Secondary Standard, according ISO-9060. High Quality, as per
WMO
5.1.2
1
Model SP-101, tilted adjustable support for Pyranometers or Callibrated Cells for vertical mast mounting with
clamps. Continuously adjustable tilt from horizontal (0°) to 90°. Made 100% stainless steel with outdoor paint extra protection.
5.2
THERMOELECTRIC DIRECT (DNI) SOLAR RADIATION SENSORS
5.2.1
1
Model GEO-DR01. Thermoelectric Pyrheliometer First Class, according ISO-9060. High Quality, as per WMO
5.3
SOLAR TRACKER FOR PYRHELIOMETERS / PYRANOMETERS AND SHADOW ACCESSORIES.
5.3.1
1
Model SunTracker-2000. Two Axis Automatic lightweight solar Tracker, to align solar radiation instruments
with the normal incidence of the sun from any position on the earth’s surface.
5.3.2
1
Model “SA-2000” Shade Disk Kit to be attached to the automatic SunTracker-3000, in order to allow one
global solar radiation sensor (pyranometer) to be shaded by the shade disk extended over the radiometers on an arm, for obtaining the measurement of the DIFFUSE Solar Radiation.
5.3.3
1
MODEL SP-360. Sun-tracker support consisting on a tubular metallic
structure (1.5 m height) in triangle pattern, ended by a flat plate (50x50cm).
5.4
WIND SPEED AND DIRECTION SENSORS
5.4.1
1
Model 03002 Wind Sentry Anemometer and Vane, with crossarm.
5.5
TEMPERATURE AND RELATIVE HUMIDITY OF AIR SENSOR
5.5.1
1
Model STH-S331 Relative Humidity and air Temperature sensor.
5.5.2
1
Model 41003 Naturally ventilated multiplate radiation shield (and sensor support) to be used with relative
humidity and air temperature probes.
5.6
BAROMETRIC PRESSURE SENSOR
5.6.1
1
Model 61302V Barometric Pressure Sensor
5.6.2
1
Model 61360. Waterproof enclosure for 61302 sensor.
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3.3 Communication tests.
The AWS type TIER1 supplied includes several ways of communications:
- Serial Port RS-232
- Ethernet connection
o MAC: 00-80-A3-99-34-D5
- GPRS Communications
o I-Chip: 00002945 VipService 4K
o IP/ Operator: meteodata2.geonica.com / Airtel
o Socket: 20066
o Password: 1151ME15
All of them were tested and confirmed that works perfectly.
3.4 Wiring diagram of the AWS
Below it is displayed the wiring diagram of the sensors to the data logger model Meteodata-3008CM.
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Fig 6 Wiring diagram of the sensors to the data logger
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4 SUMMARY OF THE INSTALLATION OF AWS
May 20th
, 2015.
After the first visit to the location selected, it is confirmed that the foundations are not ready, so we had to talk with the
head of maintenance of University. We agreed with him, to prepare concrete foundation on the rooftop where it will be
fixed the anchors and the base plate of the tower and the solar tracker support with Epoxy resin
Foundations are made by the joint of 3 blocks concrete of 50*50*5 cm joint with cement. It is also specified that the
distance between both foundations, must be 4 meters.
Fig 7 Image of the concrete blocks used to make the foundations.
Fig 8 Detail of the foundations with the anchors and baseplate of the meteorological tower and solar tracker support.
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Fig 9 Detail of the distance between foundations
May 21st, 2015.
After solving small problems with the drills for the anchors of the foundations that it didn’t fit perfectly with the base of
the tower and the solar tracker support it is started with the mounting of the 3 meters tower and the solar tracker
support. The solution was to made new drills that match perfectly with the base plates.
Fig 10 Detail of the deviation of the drills on the foundations
Once the meteorological tower and the solar tracker support were fixed to the foundations, technicians started to install
all solar and meteorological sensors one by one.
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The solar radiation sensor for the measurement of global horizontal irradiance (GHI) was installed in the railing of the
rooftop. The decision to install here was to assure that nothing could generate shadows over the pyranometer that
could affect to the quality of the measurements.
Fig 11 View of installation of the pyranometers used for the measurement of GHI.
Once all sensors and equipment were mounted and installed, it is made a functional test of the complete AWS.
Communications through GPRS are tested from Madrid, SPAIN and locally by using a Computer of the University with
internet communications. All test run satisfactorily.
At the end of the installation, the technicians made a short training course to the staff of the university based, mainly,
on the maintenance of the weather station and the cleaning of the solar radiation sensors.
Communications software is also installed on a computer of the staff of the university.
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ANNEX 1. CALIBRATION CERTIFICATES OF SENSORS AND DATA LOGGER
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ANNEX 2. ADDITIONAL PICTURES OF THE PHOTOS.
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Fig 12 Suntracker-2000
Fig 13 Sensitivities of the solar radiation sensors installed.
Fig 14 Detail of shadow generated by the shadow band kit on the pyranometers for the measurement of Diffuse Irradiance.
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Fig 15 Detail of the data logger mounted on the met. tower.
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