How Measurement Data is Used to Derive a Load Model for Ghanaian Health Facilities

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Interview with Prof. Thorsten Schneiders from Cologne University of Applied Sciences – project leader of EnerSHelF’s work package 3.1. He explains the importance of measuring the power demand and load structure to identify the appropriate technology for the implementation at the three health facilities in Ghana.

Work package 3 aims to improve the country- and sector-based forecast of solar power generation (PV) and consumption (health facilities). What is the specific aim of your work package 3.1 “Electricity demand of the Ghanaian Health Sector”?

To supplement existing power supply systems with renewable energy sources, more information about the power demand in a higher resolution is needed. Our aim is to fill these information gaps by long-term measurements of power demand and load structure at several medium-sized health facilities. In a second step, we use the measurement data to derive a load model for Ghanaian health facilities, which can generate synthetic load profiles as close to reality as possible. We have observed that newly installed technology such as LED lights is sensitive to voltage fluctuations occurring in Ghana. These power system transients should also be qualified and quantified by means of the measurements in order to identify the appropriate technology to implement at such sites.

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Green, Yellow, and Red – How a Traffic Light System Could Guide the Users at the Health Facilities in Ghana

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Interview with Steven Denk from WestfalenWIND, project leader of EnerSHelF’s work package 2. He explains the importance of an easy and accessible communication to guide the users of the PV solar system at the three health facilities.

Work package 2 aims to promote user acceptance and sustainability of context-specific and marketable PV-based energy solutions. What does this mean in the local context of Ghana, can you explain?

This means that we will try to create an understanding of electricity generation and consumption among the local population that gets in touch with the system. To achieve this, we will choose a simple graphical display, which will guide the users to ensure the optimal usage of solar power in a comprehensible way.

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How the EnerSHelF Project Aims to Promote Market-based PV Energy Solutions in the Ghanaian Health Sector

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Interview with Prof. Dr. Katja Bender and Callistus Agbaam from Bonn-Rhein-Sieg University of Applied Sciences. They explain, how work package 1 examines the Ghanaian political economy structure to understand processes that support or hamper the sustainable energy transition in the health and energy sectors.

Work package 1 aims to examine the political economy of a sustainable energy transition in the Ghanaian health sector. What are the specific aims of your work package?

The specific aim of work package 1 (WP 1) is twofold. First, at the national level, we aim to analyze the political economy structures that hinder or facilitate institutional change towards a sustainable energy transition in the health and energy sectors. By this, we seek to identify key decision makers or coalitions of change agents and the corresponding decision-making processes or their influencing factors, which have led to the emergence of the current institutional status quo.

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‘Off-grid and On-grid Solutions not only for Healthcare Facilities but also for Surrounding Communities’

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Interview with Dr. Catherina Cader and Dr. Philipp Blechinger from Reiner Lemoine Institute. They explain how work package 3.4 of the EnerSHelF project develops a cost-effective electrification strategy to implement PV-hybrid systems for the health care facilities and surrounding communities.

Work package 3 aims to improve the country- and sector-based forecast of solar power generation (PV) and consumption (health facilities). What is the specific aim of your work package “Development of an electrification strategy for medical institutions”?

In our work package, we develop a data-driven nationwide market introduction strategy of PV-hybrid systems for health care facilities and surrounding communities in Ghana. For the derivation of the strategy, infrastructure data and spatially resolved socio-economic data in combination with irradiation data will be used. Thereby, a technical-economic evaluation allows an assessment of the market potential for PV-hybrid systems in the Ghanaian health care facilities. Finally, the results will be used to develop a comprehensive, cost-effective electrification strategy that considers off-grid and on-grid solutions not only for healthcare facilities but also for surrounding communities.

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How Meteorological Data is used in the EnerSHelF Project

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Interview with Prof. Harald Kunstmann and Dr. Windmanadga Sawadogo from University of Augsburg. They explain, how work package 3.2 uses the analysis of meteorological data to select the best configuration for the solar power generation at the three selected health facilties.

Work package 3 aims to improve the country- and sector-based forecast of solar power generation (PV) and consumption (health facilities). What is the specific aim of your work package “High resolution energy meteorological forecasts for Ghana”?

Our working group aims to forecast the key meteorological variables for solar power generation and consumption at the field sites. That includes for instance solar irradiation and air temperature.

How do you address this, what activities have you already started to implement the necessary measurements?

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A Visualization of EnerSHelF’s Work Packages and Involved Partners

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The EnerSHelF project is an interdisciplinary research group with multiple partners in academia and industry – highlighting the complexity of its underlying processes. This complexity ensures the coverage of technical, economic and political questions sufficiently and equivalently. We created the graph below to show you the different work packages (WP) and partners which are included in the EnerSHelf project. You can find a detailed description of each partner here. During the upcoming weeks, we are going to present each work package with an initial interview to highlight and introduce each groups’ research foci.

Health Facilities Locations for the Installation of PV Solar Panels and Measurement Equipment of the Project Set

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The EnerSHelF project foresees the installation of measurement equipment related to the use of solar PV energy in health facilities in three locations throughout the country. At this stage of the project, the locations of the three health facilities were set. The three health facilities differ in the number of beds for patients and the health service offered. Hospitals have more beds and offer more services than health centres.

The St. Michael’s Hospital and the St. Dominic Hospital are in the “Deciduous Forest” climatic zone, which is warm and humid. The Kologo Health Centre is in the “Guinea Savannah” climate zone, which is hot and dry.

The geographical distribution in different climate zones will allow the acquisition of various data during field experiments. Technical field measurements will be carried out to collect real measured profiles of electrical load and supply of facilities, as well as weather data.

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A Project on the Move: EnerSHelF

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A shipment of equipment vital to the EnerSHelF project left port in Hamburg on 2 January 2020 scheduled to arrive at our project partner WASCAL located in Tema, Ghana on February 17 February 2020.

Held within the walls of the shipping container lie high tech measurement tools, that the project team will carefully set up and monitor in three project locations throughout Ghana. The equipment, which the German project partners WestfalenWind and University of Applied Sciences Bonn-Rhine-Sieg meticulously packed and inspected in Paderborn on the 12th of December, will allow the collection of location specific weather and energy requirement data.

Packing of the shipment container in Paderborn © Silvan Rummeny

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