Tazvinga, Henerica2018-11-072018-11-072018-08Tazvinga, H. 2018. Optimal dispatching of a photovoltaic-biogas hybrid system. Workshop on Enhancing Nuclear Safety, Security and Safeguards in Southern African States, 29-31 August 2018, Lusaka, Zambiahttp://hdl.handle.net/10204/10524Paper presented at the Workshop on Enhancing Nuclear Safety, Security and Safeguards in Southern African States, 29-31 August 2018, Lusaka, ZambiaThis paper presents an optimal dispatching strategy for a photovoltaic-biogas hybrid system for an off-grid institution. The aim is to prioritise use of the PV system to meet demand whenever available. If the demand is less than the PV output, the remaining power generated is dumped. If the demand is larger than the PV output, the imbalance is met by the biogas system. Since biogas production is continuous, the biogas system can supply power directly to the load and/or store energy during times when PV is meeting demand. During times when PV cannot meet the load the biogas storage system discharges to ensure that all generators run to meet the load. The results show opportunities for implementation of such autonomous systems in most developing countries where electrification rates are low. The outcome of this study is expected to inform micro-grid controller designers of the envisaged operation strategies. In cases where such a system is connected to the grid and feed-in tariffs and net metering are allowed, any excess electricity can be exported to the grid hence generating revenue or credits for the institution.enNet meteringOptimal dispatchingController designersConfigurationsConference PresentationTazvinga, H. (2018). Optimal dispatching of a photovoltaic-biogas hybrid system. http://hdl.handle.net/10204/10524Tazvinga, Henerica. "Optimal dispatching of a photovoltaic-biogas hybrid system." (2018): http://hdl.handle.net/10204/10524Tazvinga H, Optimal dispatching of a photovoltaic-biogas hybrid system; 2018. http://hdl.handle.net/10204/10524 .TY - Conference Presentation AU - Tazvinga, Henerica AB - This paper presents an optimal dispatching strategy for a photovoltaic-biogas hybrid system for an off-grid institution. The aim is to prioritise use of the PV system to meet demand whenever available. If the demand is less than the PV output, the remaining power generated is dumped. If the demand is larger than the PV output, the imbalance is met by the biogas system. Since biogas production is continuous, the biogas system can supply power directly to the load and/or store energy during times when PV is meeting demand. During times when PV cannot meet the load the biogas storage system discharges to ensure that all generators run to meet the load. The results show opportunities for implementation of such autonomous systems in most developing countries where electrification rates are low. The outcome of this study is expected to inform micro-grid controller designers of the envisaged operation strategies. In cases where such a system is connected to the grid and feed-in tariffs and net metering are allowed, any excess electricity can be exported to the grid hence generating revenue or credits for the institution. DA - 2018-08 DB - ResearchSpace DP - CSIR KW - Net metering KW - Optimal dispatching KW - Controller designers KW - Configurations LK - https://researchspace.csir.co.za PY - 2018 T1 - Optimal dispatching of a photovoltaic-biogas hybrid system TI - Optimal dispatching of a photovoltaic-biogas hybrid system UR - http://hdl.handle.net/10204/10524 ER -