Publikationen - Netze für Erneuerbare Energien

Emmanuel W. Ramde, Silvan Rummeny*, Thorsten Schneiders, Eberhard Waffenschmidt, Stefanie Meilinger, Samer Chaaraoui, Matthias Bebber,
"Planning of sustainable and stable micro grids for Ghanaian hospitals with photovoltaics",
15th SDEWES Conference, Cologne, Germany, 2020.

Despite good solar irradiation conditions, power supply by photovoltaics (PV) in Ghana is still underdeveloped. Due to frequent blackouts, the power supply of Ghanaian hospitals by the national grid is mainly backed up by individual diesel generators. But the tremendous decrease of the prices of solar power and rising costs of diesel makes photovoltaics an attractive substitute for diesel generation, lowering power costs and environmental impact.
This paper presents a first approach to apply the self-created tool to design micro grid power systems to a Ghanaian health facility micro grid with load data from 2015 and only back-up by a diesel generator. Local measured PV profiles from 2016 could be used to simulate an even more realistic behavior of scalable PV. Calculations show a maximum improvement of Levelized Cost of Electricity by 2.4 ¢/kWh and 29 tons of CO2 emission savings by adding 150 kWp of PV and no BESS. However, there are also profitable solutions with a BESS which can even save up to 60 tons of CO2 emissions.

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