LIST OF COMPLETED PROJECTS
CRSES has a team of competent engineers and project managers who can assist clients with on- and off-grid renewable energy solutions. The dynamic group includes engineering expertise in the following disciplines: Mechanical, Mechatronic, Electrical, Process and Civil. The Centre is also well positioned to assemble expertise from the broader University community and private industry to participate in multidisciplinary projects. The past projects are listed under each year below:
SOLAR RESOURCE DATA MEASUREMENT AND ANALYSIS: EXXARO
Scope:To measure and assess the solar resource at a site specified by the client. A complete service is provided including the acquisition, installation and commissioning of the measuring equipment; downloading the data and verifying the integrity thereof; comparing the measured data with satellite derived data; liaising with an international service provider (DLR) to verify the results.
Main Conclusions: Project from 2009 up to 2011.
ZERO EMISSIONS IN WINELANDS
Client: X TERN International GmbH
Scope: The project is about the implementation of zero-emission concepts in the wine industry of South Africa. A pilot plant will be built and put into operation in a representative vineyard. To ensure the know-how transfer, the design of a public "show room" in the vineyard itself will take place in order to demonstrate the technologies required for the production of wine-specific zero-emission concepts. This includes the development of small-scale model plants for the energetic usage of solar, wind and biomass as well as their visualization in the form of posters, flyers, hand-outs and presentations.
SOLAR RESOURCE ASSESSMENT BASED ON SATELLITE DERIVED DATA AND MODELLING OF PV PRODUCTION
Client: ACSA / The Power Company
Scope: The project was to provide the client with monthly solar satellite data for four sites in South Africa including the modelling of 4 different types of PV panels in a written report format.
TO CONDUCT A DYNAMIC MATERIAL FLOW ANALYSIS AT ALL DISPOSAL FACILITIES
Client: City of Cape Town
Scope: The project is to develop a dynamic material flow analysis model for the City of Cape Town with an initial focus on solid waste management. It is envisaged that the model could be utilised to identify opportunities for the reduction of waste treatment and disposal, or to beneficiate certain waste streams; for example, by capitalising on waste-to-energy opportunities. The validation of the developed model will be conducted to ensure consistency and reliability; tests are performed to gauge the sensitivity of model parameters; and the model is used as the basis for designing and testing policies, to address the issues of concern to management and to reveal systemic improvements.
DNI MAP KLEINSEE
Client: Ice Finance (Pty) Ltd
Scope: The aim of this project was to supply the client with the relevant DNI GIS layer for the Kleinsee area. Data is from a satellite derived source (SolarGIS data set) and have a monthly resolution (long term average based on 2005 - 2010.
DISTELL EPPING PLANT
Scope: The project entails the assessment of the application of solar process heat for water heating at a plant. The plant is a bottle washing unit located in Epping (Cape Town), South Africa. The project focuses of the bottle washing unit and consists of three phases namely: preparation, technical feasibility as well as report analysis and evaluation.
MOZAMBIQUE ENERGY TRAINING
Client: Belgium Development Agency
Scope: The Centre for Renewable and Sustainable Energy Studies provided training for 20 individuals from Mozambique at the Sustainability Institute at Lynedoch, Stellenbosch. The short course consisted of a general introduction to renewable energy and focused on solar energy in the context of a developing country. The training was spread over five days – from Monday up to Friday.
IDENTIFICATION OF LARGE PV SITES BY EMPLOYING GIS SOFTWAR
Client: Afri Devo
Scope: The aim of this project was to provide the client with a map of South Africa indicating locations viable for large PV installations based on criteria specified by the client.
IDENTIFICATION OF LARGE CSP SITES BY EMPLOYING GIS SOFTWARE
Client: Afri Devo
Scope: The aim of this project was to provide the client with a map of South Africa indicating locations viable for large (100 MW and above) CSP installations based on criteria specified by the client.
RENEWABLE ENERGY RESOURCE ASSESSMENT
Client: De Beers Marine (Pty) Ltd
Scope: De Beers wanted to have a techno–economic evaluation of technologies applicable to alternative electricity generation/ management on marine vessels. In order to provide the client with the necessary information to pursue alternative energy generation/efficient management of current technology, a pre-feasibility study is done. The pre-feasibility study is a techno-economic evaluation that looks at various options that can address the need of the client in generating on-board alternative energy.
NCPG SOLAR TRAINING
Client: Northern Cape Provincial Government
Scope: The Northern Cape Provincial Government has approached the Centre for Renewable and Sustainable Energy Studies at Stellenbosch University to present a two-day non-technical course on Renewable Energy, with a focus on Solar Energy.
AN ANALYSIS OF THE CARBON-RELATED EXPOSURES OF AND OPPORTUNITIES FOR THE NEDBANK GROUP
Client: Nedbank Limited – Enterprise Governance and Compliance
Scope: The aim of this project was to provide the client with a map of South Africa indicating locations viable for large (100MW and above) CSP installations based on criteria specified by the client.
EXPERT REPORT ON SOLAR RESOURCE AND PV YIELD
Client: Italgest Energy (Pty) Ltd
Scope: The Centre for Renewable and Sustainable Energy studies has been contacted by ITALGEST ENERGY (PTY) LTD to provide two independent expert reports on the solar resource and PV yield of their planned PV facilities near Bronkhorstspruit in South Africa.
IDENTIFICATION OF CSP SITES BY EMPLOYING GIS SOFTWARE
Client: Sasol Technology
Scope: Sasol New Energy has contacted the Centre for Renewable and Sustainable Energy Studies to conduct a CSP site identification study by employing GIS software. GIS software can be employed to identify sites suitable for large CSP (Concentrated Solar Power) installations. The software, along with different layers (e.g. solar irradiation, distance to water, terrain slope, distance to substations, etc) and criteria are used to identify suitable CSP sites. Stellenbosch University through the Centre for Renewable and Sustainable Energy Studies (CRSES) has the required expertise and access to data-bases to execute such a study. The aim of this project is to provide the client with map of South Africa indicating locations viable for large (100 MW and above) CSP installations based on criteria specified.
MAPS FOR SOLAR PROJECTS: HOTAZEL AND VRYBURG
Client: Afri Devo
Scope: Stellenbosch University have previously conducted GIS studies to assist Afri-Devo to identify suitable land for PV and/or CSP sites. The project will supply maps of two additional locations: Hotazel and Vryburg for projects not exceeding 80 MW.
RENEWABLE ENERGY RESOURCE EVALUATION FOR THE BEL AIR PROJECT IN GUINEA � WIND AND SOLAR
Client: Alufer Pty (Ltd)
Scope: Mining operations require electricity on site by means of diesel generator sets. Expenditure on fuel directly affects profit margins and thus considering a hybrid PV-diesel system that lowers the consumption of fuel per kWh generated, can prove to be a profitable scenario.
This study investigated and evaluated the economic feasibility of different hybrid PV-diesel scenarios that included:
- Total installed capacity (2.5 MW, 5 MW, 7.5 MW, and 10 MW).
- Installed PV to diesel peak ratios (100%, 75%, 50%, 25%, 0%).
- Varying peak load scenarios (constant load, day peak, night peak).
- Generators (Diesel in diesel generator, Biodiesel in diesel generator, HFO in HFO generator).
In each scenario the base-line was a conventional generator without any PV addition.
It involved performing of a solar resource assessment of the mining location (7 years of historic satellite derived solar and temperature data, 15 min temporal resolution and 250 m spatial resolution, were procured for the site at a cost of €950), gathering technology supplier specifications, construction appropriate economic models and including redundancies associated with challenges specific to Guinea.
SOLAR RESOURCE ASSESSMENT
Client: Thupela Energy
Scope: One of the main factors used to determine the feasibility of a specific site for a Photovoltaic (PV) or a Concentrated Solar Thermal Power (CSP) plant is the relevant detailed solar irradiation levels. Initial scoping studies use available solar maps derived from measured and/or satellite data. After a suitable site has been identified, site specific satellite data is typically used to obtain more accurate solar data. Stellenbosch University through the Centre for Renewable and Sustainable Energy Studies (CRSES) has the required expertise and access to data-bases to execute initial solar resource assessments. The aim of this project is to provide the client with monthly solar satellite data for 2 sites in South Africa. The solar data will be provided from four different sources. For comparative purposes, two international sites, namely Seville (Spain) and Freiburg (Germany) will be included.
PROJECT: ON SITE SOLAR INSULATION MEASUREMENT - BOTSWANA
Scope: One of the main factors used to determine the feasibility of a specific site for a Concentrated Solar Thermal Power (CSP) plant is the relevant detailed solar irradiation levels. The aim of this project is to measure solar irradiation at a site specified by the client and to correlate the data with the corresponding satellite data as well as with historic satellite data. Therefore, the client needs to have already performed a pre-feasibility study to identify a specific site where the solar resource needs to be characterised. Other weather data (wind, temperature, humidity, rainfall, etc.) will also be measured and can be used by CSP project developers to design their plant.
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